Food Ingredients and Additives

30
1 your MENU Helping you and your team to be compliant Food labelling, ingredients and legislation

description

http://www.unileverfoodsolutions.co.za/our-services/your-menu/Seductive_Nutrition | When creating your menu, you use many fresh and processed food products. Understanding the various ingredients and additives is all part of fully understanding the food labelling process. Once you understand these, you are sure to keep your guests happy.

Transcript of Food Ingredients and Additives

  • 1your MENU

    Helping you and your team to be compliant

    Food labelling, ingredients and legislation

  • 2The UFS Food Labelling Guide 2012 is published by:

    Unilever South Africa (Pty) Ltd.

    15 Nollsworth Crescent, La Lucia Ridge

    La Lucia Ridge Offi ce Estate

    La Lucia

    4051

    www.ufs.com

    Copyright 2012

    This work is the property of Unilever South Africa (Pty) Ltd.

    This work is protected under the Berne Convention. In terms

    of the Copyright Act 98 of 1998, no part of this work may

    be reproduced or transmitted in any form or by any means,

    electronic or mechanical, including photocopying, recording

    or by any information storage and retrieval system without

    permission in writing from Unilever South Africa (Pty) Ltd.

    Whilst every effort has been made to ensure that

    the information published in this work is accurate,

    Unilever South Africa (Pty) Ltd, the editors, publishers

    and printers take no responsibility for any loss or

    damage suffered by any person as a result of the

    reliance upon the information contained therein.

  • 25

    Every day you use several types of ingredients to craft your menus and prepare your dishes. Ingredient lists provide useful information about whats in your food. Some ingredients are well known, such as tomato, others are not.

    Food ingredients and additives

    This chapter helps you to understand the different

    ingredients mentioned on food labels, particularly

    focusing on the unfamiliar ones, and making it easier to:

    Understand what they are, why they are used in foods

    and how they are regulated for safe use.

    Answer guest questions about food ingredients in the

    dishes and menus you serve in your establishment.

    Comply with local legislation.

    Chapter 3 Food ingredients and additives

  • 26

    Food ingredientsWith a few exceptions,* all pre-packed foods must be labelled

    with their ingredients. The ingredient list can be found after

    the word ingredients on the product label and lists all

    ingredients in descending order of their weight. Some

    ingredients which characterize a food are also given with

    the percentage. This allows comparison of foods from

    different manufacturers so that consumers can make

    an informed choice.

    * Example: Foods consisting of only 1 ingredient, for example black tea, do not need to give a list of ingredients.

    Ingredient list

    The ingredient list shows any

    ingredient in the food, including

    added water, food additives and

    compound ingredients (those

    ingredients that are themselves

    made up of two or more

    ingredients, e.g. sausages), in

    descending order of their weight.

    Ingredients: Maltodextrin, fl avouring, corn fl our, sugar, starch, hydrolysed vegetable protein, salt, fl avour enhancers (E631, E627, E920), onion powder, vegetable oil (palm fruit)(contains antioxidant TBHQ), colourant (E150d), thickener (E412), garlic powder, yeast extract.

  • 27

    There is always a reason for using

    an ingredient in foods. Because

    consumers need to be informed

    about the ingredients which have

    been used, every ingredient is

    identifi ed in the ingredient list

    with its name. Some substances

    may cause allergic reactions

    when consumed by susceptible

    consumers. These substances are

    always mentioned in the ingredient

    list even if they are part of a

    compound ingredient (e.g. milk

    as part of a fl avour).

    27

    Chapter 3 Food ingredients and additives

  • 28

    The table below contains some ingredients which are not commonly known.

    Ingredient Description Can be found in

    Allspice

    This is a plant with a strong aroma. The berries of this plant are often used in the English, Dutch and American kitchen for meat, stews and sauces. Allspices paste is often used in the red filling of olives.

    Meat, stews, sauces, olives.

    AmyloseA carbohydrate consisting of a lot of glucose molecules forming a long chain. Its one of thetwo main components of starch.

    Baked goods, bread, chips.

    Caffeine or Guaranine

    A substance found naturally in many plants, especially in coffee, tea and cocoa. Caffeine is a well-known stimulant which improves attentionand alertness at low to moderate doses.

    Coffee, cola, energy drinks, chocolate, black tea, ice tea.

    Casein

    The name for a family of related proteins commonly found in milk from all mammals. Casein is the protein that precipitates from milk when curdledwith rennet, it is the basis for making cheese.

    Cheese, quark, products containing cheese, cheese fl avours.

    Dextrose/Glucose

    A simple sugar (monosaccharide), consisting ofthe one sugar molecule called glucose/dextrose.

    Fruit, honey, candy, baked goods, soft drinks.

    Gelatin

    Natural protein which derives primarily from animal by-products such as bones and hides. It is considered as food and usually available in powder and sheet form. Gelatin has a variety of uses. Important properties of gelatin in food are: gel formation, binding of water, formation of texture, use as a thickening agent, formation and stabilization of emulsion, formation and stabilization of foam.

    Desserts, marshmallows, confectionery, dairy products and many others.

    Glucose syrupA solution (up to 80%) of glucose, maltose and higher sugars in water. Starch from wheat, corn, potato or any other plant can be used for this purpose.

    Confectionery, candy, baked goods, jams.

    GlutenA protein found in wheat (all forms including durum, semolina, spelt, kamut, einkorn and faro) and other cereals like rye, barley, oat.

    Bread, biscuits, baked goods, pasta, soups, sauces.

    High fructose corn syrup (HFCS)

    Syrup obtained from corn starch with a high concentration of fructose. Used as high intensity sweetener. Also called glucose-fructose syrup.

    Bread, baked goods, breakfast cereals, candy, soft drinks.

  • 29

    Ingredient Description Can be found in

    Hydrolysed vegetable protein

    A protein derived from a vegetable source, such as maize, soy or wheat, which has been broken down into its amino acid components. It has a meaty flavour and is widely used in savoury products for flavouring purposes.

    Soups and sauces, chips, pizza, meat products.

    Invert sugar

    Invert sugar is a mixture of glucose and fructose.It is obtained by breaking down sucrose into these components. Invert sugar produces a smoother product.

    Candy, baked goods, some syrup.

    LactoseThe sugar found in milk, a combination of twosugar molecules (galactose and glucose).

    Dairy products, baked goods.

    Maltodextrin

    Maltodextrin is a carbohydrate produced by the break-down of starch (from corn, wheat or potato). It has a low level of sweetness, largely flavour neutral and quite water-soluble. Used particularly asa carrier for sensitive or soluble substances such as extracts or spices and bulking and thickening agents.

    Pudding powder, coffee creamer, candy and many others.

    Maltose Also known as malt sugar. A carbohydrate derived from starch consisting of two glucose molecules (dissacharide).

    Candy, beer, sport drinks, bread.

    Modified starch

    Products derived from starches (e.g. from maize, wheat and potato) that have undergone one or more chemical modifications to produce desirable properties e.g. allowing it to function properly under high heat during food processing.

    Baked goods, snacks, pudding, soups, pie filling.

    Saccharose/Sucrose

    A carbohydrate made of two sugar molecules (glucose and fructose). Regular cane sugar or beet sugar is chemically saccharose.

    Sugar cubes, table sugar, candy, bakery goods, soft drinks, many other products.

    Sodium chloride

    Chemical name for table salt.

    Meat, ready-to-eat meals, soups, sauces, bread, baked goods, savoury snacks.

    Whey proteinThe proteins in whey, the watery part of milk that remains after the casein is separated.

    Light products, cookies, chocolate products, baby nutrition.

    Yeast extract

    An ingredient that brings an intense, aromatic, spicy mixture and also supports the flavour of the other ingredients in a product. To produce yeast extract, yeast proteins are broken down into a mix of smaller protein parts and amino acids. This mix of proteins provides yeast extract with its unique taste-delivering qualities.

    Gravy, stock, ready to eat meals, savoury snacks, soups, sauces.

    Chapter 3 Food ingredients and additives

  • 30

    AdditivesWhat are food additives?

    Food additives are ingredients that are added to

    foods to serve a specifi c function. Some additives

    make the food taste better or sweeter (fl avours,

    fl avour enhancers and sweeteners) or give colour

    to the product (colours). Other additives make

    the product thicker (thickeners) or prevent the

    food from spoiling (preservatives).

    Some food additives may have unfamiliar names

    that sound complex and even chemical. But all

    foods, even completely natural ones, consist of

    chemical compounds that are found in nature.

    Did you know?Every food we eat is made up

    of chemical compounds that

    determine fl avour, colour,

    texture and nutrient value.

  • 31

    Tomatoes may appear as if

    they dont contain chemical

    compounds. However if we look

    in more detail tomatoes contain

    natural compounds, which at the

    same time are authorised as food

    additives, such as the colourant

    lycopene (E160d), the antioxidant

    ascorbic acid (E300), the fl avour

    enhancer glutamic acid (E620) and

    the acids malic acid (E296) and

    citric acid (E330).

    31

    Chapter 3 Food ingredients and additives

  • 32

    The use of food additives

    Nowadays, we are demanding

    more variety, choice and

    convenience alongside higher

    standards of safety and

    wholesomeness at affordable

    prices. To meet these guest and

    chef expectations, modern food

    technology uses food additives.

    Food additives serve many

    useful functions in food, so

    there are different types of

    food additives such as colours,

    preservatives, antioxidants,

    sweeteners, thickeners,

    stabilisers and emulsifi ers, as

    well as fl avour enhancers. The

    second table gives you a short

    description of the different

    types of food additives. Detailed

    information on each individual

    additive can be found

    in the Appendix.

    Despite modern-day

    associations, many food

    additives have been used for

    centuries. Our ancestors used

    natural ingredients to optimize

    their food. For example, they

    used the sour juice of a lemon

    to avoid fruits and vegetables

    turning brown, egg yolks to

    make emulsions of water and

    oil, and added herbs and spices

    to improve the fl avour of foods.

  • 33

    The main use of additives in foods are:

    To maintain or improve safety and quality.

    To improve or maintain nutritional value.

    To improve or maintain taste, texture and appearance.

    Foods are impacted by many environmental conditions such

    as temperature changes or air humidity which change their

    original composition. Food additives help to maintain the

    food quality and characteristics from farm to fork.

    How are food additives regulated?

    Some people have concerns about

    the safety of additives for health.

    All food additives however must

    have a demonstrated useful

    purpose and undergo a rigorous

    scientifi c safety evaluation before

    they can be approved for use.

    Which food additives at which

    maximum level can be added to

    a specifi c food product is regulated

    as well.

    At an international level, the safety

    evaluation of additives is done by

    JECFA (Joint Expert Committee on

    Food Additives), an organisation

    created by the Food and Agriculture

    Organisation (FAO) and the World

    Health Organisation (WHO). All

    food additives which have been

    found safe for use are numbered

    by an INS code (International

    Number System).

    Whats an E-number?

    An E-number signifi es approval of an

    additive by the European Union (EU). To

    obtain an E-number, the additive must

    have been fully evaluated for safety by

    the European Food Safety Authority. The

    E-number generally corresponds with

    the INS code, but not always.

    Good to knowOn the product label, food additives are

    listed in the ingredient list according

    to their function and name or code e.g.

    Thickener (pectin) or Thickener (E440).

    Chapter 3 Food ingredients and additives

  • 34

    Adverse reactions to food

    additives are not common, but

    some people may be sensitive

    to some preservatives, like

    benzoic acid and some azo

    colourants. The most common

    food allergies are egg, fi sh, soy,

    gluten, milk and nut/peanut

    allergies, not additive allergies.

    Additives and adverse reactions

    Did you know?Many food additives are derived from

    natural sources, e.g. lecithin from soya

    beans; others are from synthetic

    sources, e.g. sodium salts of silicate.

    Both are labelled with an E-number

    in the ingredient list.

  • 35

    The role of Unilevers Safety and Environmental Assurance Centre (SEAC) is to assure the safety and environmental sustainability of Unilever

    products, and the processes used to

    manufacture them.

    Safety and sustainability is designed into

    technology early in the innovation process.

    SEAC works with Research & Development

    teams to understand the nature and scope of the

    technology, how this will be incorporated into products and processes, and

    how consumers will use the product. SEAC has a diverse range of scientifi c

    expertise that is dedicated to providing risk assessments for the consumer,

    occupational and environmental safety, and assessments of environmental

    sustainability across the life cycle of products and processes.

    For example, when Unilever develops or uses a new food additive (e.g.

    Stevia) an expert safety risk assessment will be conducted. Risk assessment

    is the process that SEAC uses to identify the hazard, quantify exposure and

    thereby determine potential risk. SEAC has built extensive information

    systems, scientifi c capability and experience over 50 years within Unilever.

    Research fi ndings are published in peer-reviewed journals and regularly

    presented at international conferences and seminars.

    35

    Chapter 3 Food ingredients and additives

  • 36

  • 37

    Types of food additives

    Food additives are grouped by what they do. The types of

    additives that you are most likely to come across on food

    labels are summarized in the tables on the following pages.

    Acids/Acidity regulators

    What do they do?

    Acids increase the acidity of products and/or add a sour taste.

    Acid regulators are used to regulate the acidity or alkalinity (pH-value) of a product which is important for processing and food safety.

    Why they are used

    Citric acid is used in soft drinks, teas, juices, and other beverages to create a slightly sour, refreshing flavour and balance sweetness.Lactic acid can be used in dressings and salads to regulate the acidity which is important for food safety.

    Examples of usesBeverages, baked goods, baking powder, frozen desserts, dressings, salads, processed meat, dairy products.

    Names found on product labels

    Citric acid (E330), lactic acid (E270), acetic acid (E260), malic acid (E296), ammonium hydroxide (E527), sodium acetates (E262), calcium acetate (E263).

    Anti-caking agents

    What do they do?

    Prevent ingredients clumping together and forming lumps.This ensures that products flow and mix evenly during production and packaging. Anti-caking agents also ensure that ingredients dont clump together during storage.

    Why they are used

    Dry products, such as seasonings can clump together when exposed to moisture during storage. Anti-caking agents prevent food from absorbing moisture. They also ensure even mixing and flowability for e.g. vegetable powders and spices.

    Examples of usesBaking powder, confectioners sugar, seasonings, spices, vegetable powder.

    Names found on product labels

    Calcium silicate (E552), silicon dioxide (E551), calcium phosphate (E341).

    Chapter 3 Food ingredients and additives

  • 38

    Bulking agents

    What do they do?Help to increase the volume of a product without contributing significantly to the energy content (caloric value) or affecting the taste.

    Why they are used

    Bulking agents can be used as diluents or carriers. They can be used to increase the volume of an ingredient which is only required in small amounts. For example flavours and colours which are only required in small amounts in a product are easier to dose by adding a bulking agent. They also can be used as fillers in all kinds of products to increase the volume/weight without having a significant impact on taste and caloric value.

    Examples of uses Low calorie foods, cereals, meal replacements, bread, pastries.

    Names found on product labels

    Oxidized starch (E1404), cellulose (E460), calcium phosphate (E341), sodium carbonate (E500).

    Antioxidants

    What do they do?

    React with oxygen in the air and prevent the oxidation of different food components. This prevents undesirable colour changes (e.g. browning), off-odours and off-flavours known as rancidity.Antioxidants also protect the vitamins in food.

    Why they are usedIn margarines, rancid flavours can develop when they are exposed to oxygen. Antioxidants prevent this.

    Examples of usesFruit salads, beverages, oils, margarine, mayonnaise, beer, biscuits, baked goods, cereals.

    Names found on product labels

    Ascorbic acid (E300), citric acid (E330), tocopheroles (E306-E309), sulphites (E221-E228), BHA (E320), Rosemary extract (E392).

  • 39

    Emulsifiers

    What do they do?Make it possible to form or maintain a stable, homogeneous mixture of two or more ingredients/phases which can normally not be mixed (e.g. oil and water).

    Why they are usedOil and water normally dont mix. By using an emulsifier both substances can be mixed and form a stable, homogenous mixture such as in mayonnaise.

    Examples of usesMayonnaise, margarine, syrup, salad dressing, coffee creamer, chocolate, ice cream, desserts.

    Names found on product labels

    Lecithins (E322), mono- and diglycerides of fatty acids (E471), polysorbates (E432-E436), polyglycerol esters of fatty acids (E475).

    Firming agents

    What do they do? Help maintain crispiness and firmness of fruits and vegetables.

    Why they are usedFruit and vegetables taste better when they are crispy. So firming agents are added to keep the firmness and crispiness.

    Examples of uses Processed fruits and vegetables.

    Names found on product labels

    Calcium chloride (E509), calcium citrate (E333), calcium carbonate (E170), calcium phosphates (E341), magnesium chloride (E511).

    Flavour enhancers

    What do they do? Enhance the existing flavour of food.

    Why they are usedThey are mainly relevant for savoury products as they add/increase the mouthfeel and umami taste of products. They help to maintain a full Savoury taste despite salt reduction.

    Examples of uses Sauces, soups, seasonings, savoury snacks, meat products.

    Names found on product labels

    Glutamates (E621-E625[ MSG E621]), disodium guanylate (E627), disodium inosinate (E631).

    Chapter 3 Food ingredients and additives

  • 40

    Foaming agents and Anti-foaming agents

    What do they do?

    Foaming agents create foam during the industrial process or the product use.Anti-foaming agents reduce and stop a product foaming during the industrial process and also during cooking and product use.

    Why they are used

    Foaming agents can be added to beer to build foam. Anti-foaming agents reduce and prevent the formation of foam in situations where it is not wanted, e.g. producing soft drinks or when frying with oil.

    Examples of usesFoaming agent is used in: Whipped cream, whipped desserts, beer. Anti-foaming agent is used in: Jam, cooking oil, soft drinks.

    Names found on product labels

    Dimethyl polysiloxane (anti-foaming agent) (E900).

    Flour treatment agents

    What do they do?Improve the baking functionality of flour and dough. They are used to increase the speed of dough rising and to improve the strength and workability of the dough.

    Why they are usedTo avoid a bread becoming unstable after its been bakedand raised.

    Examples of uses Breads and other baked goods.

    Names found on product labels

    Ammonium sulphate (E517), L-cysteine (E920).

  • 41

    Gelling agents and Thickeners

    What do they do?

    Gives food the right texture and has an impacton the mouth feeling. Gelling agents give texture to a product throughformation of a gel.Thickeners increase the viscosity of a product without substantially modifying its other properties.

    Why they are usedA dessert can get its structure by adding a gelling agent or a thickener.

    Examples of usesSoup, sauce, jus, custard, jam, frozen desserts, ice cream, dairy products, pudding, salad dressings, mayonnaise, meat products.

    Names found on product labels

    Alginates (E401-405), sodium alginate (E401), Arabic gum (E414), carrageenan (E407), xanthan gum (E415), locust bean gum (E410), guar gum (E412), konjac flour (E425), pectin (E440), Agar (E406), cellulose (E460), tragacanth (E413).

    Food colours or Colouring agents

    What do they do? Add or restore the colour in a product.

    Why they are usedBeta-carotene is an orange-yellow colour found in plants such as carrots which is used as colourant in margarine.

    Caramel colours are used to add the brown colour to dark Roux.

    Examples of usesCandy, beverages, baked goods, cheese, dry soups, dry sauces, seasonings, margarine.

    Names found on product labels

    Annatto (E160b), caramel colours (E150a-d), carotenes (E160a-e), Indigotine (E132), brilliant blue (E133), allura red (azo dye) (E129), erythrosine (E127), tartrazine (azo dye) (E102).

    Chapter 3 Food ingredients and additives

  • 42

    Preservatives

    What do they do?Prevent spoilage of food due to micro-organism such as fungi, bacteria, yeasts and moulds and therefore help to ensure food safety.

    Why they are used

    While the high sugar content of conventional jam prevents micro-organisms from growing, energy-reduced jam doesnt have a long shelf life. A preservative extends its shelf life by decreasing the growth of micro-organisms.

    Examples of usesFruit sauces, cured meat, baked goods, margarine, dressing, snack foods, wine, processed cheese, energy-reduced jam.

    Names found on product labels

    Benzoate (E211-E219), sulphur dioxide (E220), sulphites (221-E228), nitrite (E249-E250), calcium propionate (E282), potassium sorbate (E202).

    Humectants

    What do they do?Prevent products from drying out as they help products to retain the water.

    Why they are usedShredded coconut stays moist and marshmallows stay soft because of an added humectant.

    Examples of uses Marshmallows, shredded coconut, confectioneries, soft candies.

    Names found on product labels

    Sorbitol (E420), glycerine (E422).

    Glazing agents

    What do they do?Give a shiny appearance to the external surface of products or provide a protective coating.

    Why they are usedA candy that is dull isnt as attractive as one that shines. A glazing agent provides a nice shine on the product.

    Examples of uses Pastries, cakes and confectioneries, dry fruits.

    Names found on product labels

    Carnauba wax (E903), beeswax (E901).

  • 43

    Sequestrant

    What do they do?Form complexes with metallic ions. They improve the quality and stability of the food and act as a kind of preservative.

    Why they are used

    Sequestrants react with trace metals such as copper, iron and nickel which can degrade food stuffs by initiating the oxidation of fats. Sequestrants form complexes with these metals and, thereby prevent the degradation of food.

    Examples of uses Mayonnaise, dressings, canned food, liquid sauces and soup.

    Names found on product labels

    EDTA (E385), Glucono delta-lactone (E575), Sodium gluconate (E576), Potassium gluconate (E577).

    Propellant gases

    What do they do? Create pressure in a product which expels the food stuff.

    Why they are usedWhipped cream wouldnt come out an aerosol without the help of gas. This gas creates pressure when you press the button.

    Examples of uses Oil cooking spray, whipped cream.

    Names found on product labels

    Carbon dioxide (E290), nitrous oxide (E942).

    Raising agents

    What do they do?Release gas and thereby increase the volume of a dough or batter.

    Why they are usedThe raising agent releases gas (usually carbon dioxide) in the dough which helps to raise the volume of bread during baking |and results in a light and soft, sponge like texture.

    Examples of uses Bread and other baked goods.

    Names found on product labels

    Sodium carbonate (E500), calcium phosphate (E341), calcium carbonate (E170).

    Chapter 3 Food ingredients and additives

  • 44

    Sweeteners

    What do they do?Provide sweetness to a product.

    In general sweeteners are used to replace sugar, i.e. they dont increase the energy content of the product significantly.

    Why they are used

    More and more people use light products to consume less calories. Sweeteners can be used as a solution as they add sweetness to a product without increasing the energy content significantly.

    Examples of usesLight products like beverages, replacement of table-top sugar, energy-reduced candy.

    Names found on product labels

    Saccharin (E954), cyclamate (E952), aspartame (E951), acesulfame-K (E950), sucralose (E955), Isomalt (E953).

    Stabilizers

    What do they do?Help maintain the physical and textural properties of food stuffs through their production, transport, storage and cooking.

    Why they are usedMayonnaise made of oil and watery ingredients will splitafter a while. A stabilizer prevents this from happening.

    Examples of usesFrozen desserts, dairy products, salad dressings, margarine, mayonnaise, sauces, meat products.

    Names found on product labels

    Phosphates (E339-E343), calcium sulphate (E516), agar (E406), sorbitol (E420), pectin (E440), Arabic gum (E414), EDTA (E385), locust bean gum (E410).

  • 4545

    Chapter 3 Food ingredients and additives

  • 46

    Glossary AdditiveAdditives are substances that are added to foodstuffs for technical reasons, to improve their quality or to achieve certain propertiesor effects.

    Chemical All foods, living matter and, indeed, our bodies themselves are made up of chemicals. Even water is a chemical. Every substance has its own specifi c molecular composition, also called the chemical structure. This name is often confused with a non-natural process of creating a substance. But even natural substances have a chemical name and structure. For example the chemical name of vitamin C is ascorbic acid.

    E-number Is a number identifying chemical compounds which have been approved as food additives. E-numbers make it possible to identify any additive in any country within the European Union, regardless of the language spoken in that country the E stands for Europe. For example, E160c denotes the colouring, paprika extract. Code numbers use less space on labels than full names of additives.

    EFSA The European Food Safety Authority (EFSA) is Europes food safety watchdog. Its task is to scientifically assess the risks associated with the food and animal food chain, helping to ensure that Europes food is safe. EFSA plays a key role in the safety evaluation of food additives.

  • 47

    FAOThe Food and Agriculture Organization of the United Nations (FAO) leads international efforts to defeat hunger. Achieving food security for all is at the heart of FAOs efforts to make sure people have regular access to enough high-quality food to lead active, healthy lives. As a knowledge organization, FAO creates and shares critical information about food, agriculture and natural resources in the form of global public goods.

    INS code On a worldwide level, the Codex Alimentarius, a joint WHO/FAO organisation, has prepared the International Numbering System for Food Additives (INS), which provides an agreed international numerical system for identifying food additives (a system similar to the E-numbering system in the EU). Only those additives that have been evaluated by the JECFA (the Joint FAO/WHO Expert Committee on Food Additives) are included.

    JECFAThis is the abbreviation for Joint Expert Committee on Food Additives. An important task of this committee, created by the FAO and WHO, is to evaluate food additives.

    Nature identical A nature identical additive is an additive which is man-made (by a chemist) but has the same chemical structure/composition as the natural counterpart. For example, vitamin C or ascorbic acid may be derived from an orange or produced in a laboratory. Our bodies do not make any difference between nature identical or natural.

    pH-valueThe pH of a food is the measure of that products acidity. The pH-scale ranges from 0 to 14. When the pH-value is below 7, the product will taste sourer. The lower the value the more sour the taste of the product and vice versa.

    PigmentA substance or material used as a colouring/ used to give colour to a product. The colouring principles of natural foods are called pigments.

    SaltsSalt is not only the salt you sprinkle over your food. There are many different salts. Its a collective name for chemical compounds containing metals (like sodium, calcium and magnesium) and non-metal atoms (like oxygen and chloride). For example there is magnesium salt or calcium salt. The salt you sprinkle over your food is mostly sodium chloride, a sodium salt.

    Synthetic/Artifi cialSynthetic means that its not made by nature, but man-made. Some additivesare manufactured from natural sources such as soybeans and corn, which provide lecithin to maintain product consistency. Other additives are not found in nature and so are man-made. Whether an additive is natural or artifi cial has no bearing onits safety.

    WHOThe World Health Organisation focuseson the health of all United Nation countries. Its responsible for maintaining health, carrying out studies of health,new standards for food and production processes, and much more.

    Chapter 3 Food ingredients and additives

  • 48

    FAQs

    What are the ingredients in this dish?

    Every day you use several fresh ingredients and products to prepare your dishes. The ingredients in a specifi c dish are all the items listed on the ingredient lists of the products and ingredients used. For example, if you prepare a dish with steak, sauce, baked potatoes and green beans, you can see in the ingredient list on the packaging of each packed productwhat is in it.

    Fresh ingredients often dont have an ingredient list. In this case justinclude the name of the ingredient.

    To be able to answer this question, its crucial to know the ingredientsin your dishes. To write your own ingredient declaration for your dishes,use the easy step plan on page 21.

    Do your dishes contain any preservatives?

    Preservatives are additives that prolong the shelf life of foodstuffs by protecting them from micro-bacterial spoilage. They kill off micro-organisms such as bacteria, yeasts and moulds, or inhibit their growth or reproduction. Food preservation methods, such as curing and dehydration, have been used for centuries to guarantee the safety and quality of many foodstuffs for a set period of time.

    The safety and use of preservatives is strictly regulated and monitored by local government and global regulatory bodies. Preservatives are only permitted as additives for foodstuffs if they are harmless to health and itis technically necessary to use them.

    To check whether your dishes contain any preservatives, check the labelsof the products you use.

    Below are some frequently asked questions by guests concerning food ingredients and additives.

  • 49

    Do your dishes contain any additives?

    Additives are substances that are added to foodstuffs for technical reasons, to improve their quality or to achieve certain properties or effects. Adding additives to foodstuffs can make them safer by protecting them against micro-organisms or improving their sensory properties.

    All food additives must be approved by authorities and strict limits are put on the amount and types of additives used in foods. The media often attributes allergenic effects to additives, however adverse reactions to additives clearly play a less signifi cant role than allergies and low tolerance reactions to natural foodstuffs such as milk protein, lactose, gluten and eggs.

    As chefs you regularly use, for example, baking powder as a raising agent. This is an example of an additive.

    To know which additives are present in your dishes, check the ingredient lists of the packed products and ingredients you use. On the product label, food additives are listed in the ingredient list according to their functionand name or code e.g. Thickener (pectin) or Thickener (E440).

    Do you use any fl avour enhancers in your dishes, such as MSG?

    Flavour enhancers are additives that enhance the fl avour of foodstuffs without having any pronounced fl avour themselves.

    MSG is one of the most well-known fl avour enhancers. MSG stands for monosodium glutamate, the sodium salt of glutamic acid, which is a natural amino acid found in most foods. Mushrooms, tomatoes and parmesan cheese have high levels of glutamate, and these are foods often used for their fl avouring properties. MSG has fl avour enhancing properties and has been in use for a long time. It has the specifi c fl avour of umami, a savoury and meaty taste.

    MSG is a food additive affi rmed as safe by the EU, FAO/WHO and by theFDA in the US. The amount of MSG that is added to food is normally in amounts similar to that found naturally in food. Some individuals have reported headaches and nausea with high intakes of MSG, symptoms that disappear within a couple of hours. These perceived effects may be due to the food itself, with strong spices used in these dishes. There is no known MSG allergy.

    To check whether MSG is an ingredient in your dish, please check thelabels of the products you use.

    Chapter 3 Food ingredients and additives

  • 242

    Data sources

    The Consumer Protection Act

    South African Government Online, 2012. What is

    the Consumer protection Act. [Online] http://

    www.info.gov.za [Retrieved on 10 October 2012]

    Eldin Food Consulting, 2012. Your Specialist in

    Food Safety and Labelling. [Online] http://www.

    eldin.co.za [Retrieved on 10 October 2012]

    A Guide to the Consumer Protection Act, PDF

    Online, 2012. What is the Consumer Protection

    Act? [Online PDF] http://www.restaurant.org.za/

    pdf/A_Guide_To_The_Consumer_Protection_Act.

    pdf [Retrieved 10 October 2012]

    Understanding food labels

    South African Department of Health, 2012. Food

    Control Legislation [Online] http://www.doh.

    gov.za/ [Retrieved 4th December 2012]

    Food ingredients & additives

    The Multilingual Food Information Site, 2012.

    Food Additives. [Online] http://www.food-info.

    net [Retrieved 20 August 2012]

    European Food Information Council, 2012. Focus

    on Food Additives. [Online] http://www.eufi c.org

    [Retrieved 20 August 2012]

    US Food and Drug Administration, 2012. Food

    Additives. [Online] http://www.fda.gov [Retrieved

    20 August 2012]

    Food and Agriculture Organization of the United

    States, 2012. [Online PDF] http://www.fao.org/

    food/food-safety-quality/scientifi c-advice/jecfa/

    jecfa-additives/en [Retrieved 20 August 2012]

    L. K. Mahan; S. Escott-Stump. Krauses Food,

    Nutrition and Diet Therapy. Elsevier. 11th

    edition. 2004

    E. Whitney; S. Rady Rolfes. Understanding

    Nutrition. Wadsworth Publishing. 11th

    edition. 2007

    REGULATION (EC) No 1333/2008 OF THE

    EUROPEAN PARLIAMENT AND OF THE COUNCIL

    of 16 December 2008 on food additives

    http://eur-lex.europa.eu/LexUriServ/LexUriServ.

    do?uri=OJ:L:2008:354:0016:0033:en:PDF

    COMMISSION REGULATION (EU) No 1129/2011

    of 11 November 2011 amending Annex II

    to Regulation (EC) No 1333/2008 of the European

    Parliament and of the Council by establishing

    a Union list of food additives http://eur-lex.

    europa.eu/LexUriServ/LexUriServ.

    do?uri=OJ:L:2011:295:0001:0177:En:PDF

    Dietary requirements

    Food Allergy and Anaphylaxis Network, 2012.

    Common Food Allergens. [Online] http://www.

    foodallergy.org [Retrieved 4th December 2012]

    European Food Information Council, 2012. Focus

    on Food Allergens. [Online] http://www.eufi c.org

    [Retrieved 4th December 2012]

    The Food Allergy Initiative, 2012. Food Allergies

    Overview. [Online] http://www.faiusa.org

    [Retrieved 4th December 2012]

    National Health Service, 2012. Living With

    Allergy. [Online] http://www.nhs.uk [Retrieved

    4th December 2012]

    Canadian Food Inspection Agency, 2012. Food-

    Consumer Centre Food Allergies. [Online]

    http://www.inspection.gc.ca [Retrieved 4th

    December 2012]

    Allergy Society of South Africa, 2012. Page for

    Patients. [Online] http://www.allergysa.org

    [Retrieved 4th December 2012]

    The Anaphylaxis Campaign, 2012. Food and

    Catering. [Online] http://www.anaphylaxis.org.

    uk [Retrieved 4th December 2012]

    The British Allergy Foundation, 2012. Types

    of Allergies. [Online] http://www.allergyuk.org

    [Retrieved 4th December 2012]

    Statistics South Africa. Census 2001. 10th

    October 2001. http://www.statssa.gov.za/

    census01/html/default.asp [Retrieved 30th

    October 2011]

    Statistics South Africa. Mid-year population

    estimates 2010. http://www.statssa.gov.za/

    publications/P0302/P03022010.pdf [Retrieved

    23rd July 2010]

  • 243

    The Vegetarian Society, 2012. Food Help for

    Caterers. [Online] http://www.vegsoc.org/page.

    aspx?pid=506 [Retrieved 4th December 2012]

    The British Diabetic Foundation, 2012. Caring

    for People with Diabetes. [Online] http://www.

    diabetes.org.uk [Retrieved 4th December 2012]

    The American Heart Association, 2012. Getting

    Healthy Nutrition Centre. [Online] http://www.

    heart.org [Retrieved 4th December 2012]

    Nutrition Education Services Oregon Dairy

    Council, 2012. Dash Diet Eating Plan. [Online]

    http://www.dashdietoregon.org [Retrieved

    4th December 2012]

    Islamic Food and Nutrition Council of America,

    2012. Food Service Kit. [Online] http://www.

    ifanca.org [Retrieved 4th December 2012]

    KIR Kosher Food Certifi cation, 2012. What

    Does Kosher Mean? [Online] http://www.

    koshercertifi cation.org.uk/whatdoe.html

    [Retrieved 4th December 2012]

    Nutrition table

    The World Health Organisation, 2012. Health

    Topics Nutrition. [Online] http://www.who.int

    [Retrieved 4th December 2012]

    World Health Organization. Diet, nutrition and

    the prevention of chronic diseases. Report of a

    Joint WHO/FAO Expert Consultation. Geneva,

    WorldHealth Organization. 2003 (WHO Technical

    Report Series, No. 916)

    Symbols and logos

    Heart and Stroke Foundation South Africa,

    2012. Healthy Heart. [Online] http://www.

    heartfoundation.co.za [Retrieved 15

    November 2012]

    SASSI The Southern African Sustainable

    Seafood Initiative, 2012. [Online] http://www.

    wwfsassi.co.za [Retrieved 15 November 2012]

    Marine Stewardship Council, Certifi ed

    Sustainable Seafood, 2012. [Online] http://

    www.msc.org [Retrieved 15 November 2012]

    Fairtrade Label South Africa, 2012. What is

    Fairtrade. [Online] http://www.fairtradelabel.org.

    za [Retrieved 15 November 2012]

    Proudly South African, 2012. What is Proudly

    South African? [Online] http://www.proudlysa.

    co.za [Retrieved 15 November 2012]

    Storage

    Colorado State University-Extension, 2012.Food

    Storage for Safety and Quality. [Online] http://

    www.ext.colostate.edu/pubs/foodnut/09310.htm

    [Retrieved 04 December 2012]

    Clemson University Cooperative Extension

    Service and Oregonian Food Day, 2012. Food

    Storage Chart - Food Storage Guidelines Shelf

    Life of Food - Refrigerator & Freezer Storage

    Chart. [Online] http://whatscookingamerica.net/

    Information/FreezerChart.htm [Retrieved

    04 December 2012]

    Help With Series, 2012. Guide to home

    refrigeration and the correct storage of

    cooked and fresh food items.[Online] http://

    www.helpwithcooking.com/food-storage/

    refrigeration-tips.html [Retrieved 04

    December 2012]

    Center for Foodservice Learning, 2010 2011.

    Storing Food Safely - Home Storage Practices.

    [Online] http://www.food-safety-and-you.com/

    StoringFoodSafety.html [Retrieved 04

    December 2012]

    When in Doubt Throw it Out!, Fight Bac

    Campaign, USDA. Refrigerator and Freezer

    Safety. [Online] http://www.wvu.edu/~exten/

    infores/pubs/fypubs/136.wlg.pdf [Retrieved

    04 December 2012]

    Help With Series, 2012. How to test an eggs

    freshness, see if your eggs are fresh, 2001-2012.

    [Online] http://www.helpwithcooking.com/

    egg-guide/fresh-egg-test.html [Retrieved 04

    December 2012]

  • 244

    Storage continued...

    Answers Corporation, 2012. Is it safe to eat expired

    canned food? [Online] http://wiki.answers.com/Q/

    Is_it_safe_to_eat_expired_canned_food [Retrieved 04

    December 2012]

    University of Nebraska-Lincoln, 2012. Refrigerated

    and Freezer Storage. [Online] http://food.unl.edu/

    web/safety/refrigerator-freezer. [Retrieved 04

    December 2012]

    State Government of Victoria, 2012. Food safety

    storage. [Online] http://www.betterhealth.vic.gov.au/

    bhcv2/bhcarticles.nsf/pages/Food_safety_storage.

    [Retrieved 04 December 2012]

    Still Tasty, 2012 . Three ways to defrost food safely.

    [Online] http://www.stilltasty.com/articles/view/9.

    [Retrieved 05 December 2012]

    Favorite Freezer Foods, 2008-2011. Can you

    refreeze food that thawed? [Online] http://www.

    favoritefreezerfoods.com/refreeze-food.html

    [Retrieved 05 December 2012]

    State Government of Victoria, 2012. Food safety

    when cooking. [Online]. http://www.betterhealth.

    vic.gov.au/bhcv2/bhcarticles.nsf/pages/Food_safety_

    when_cooking. [Retrieved

    05 December 2012]

    CBS Interactive, 2012. How long does fresh

    fi sh keep in the fridge? [Online] http://chowhound.

    chow.com/topics/276180

    [Retrieved 05 December 2012]