ADDITIVES Valentina Pajk & Ksenija Zupanc Slovenia.
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Transcript of ADDITIVES Valentina Pajk & Ksenija Zupanc Slovenia.
ADDITIVESADDITIVES
Valentina Pajk & Ksenija ZupancValentina Pajk & Ksenija Zupanc
SloveniaSlovenia
What are additives?What are additives?
Food additivesFood additives are substances added to are substances added to food to preserve flavour or improve its food to preserve flavour or improve its taste and appearance. taste and appearance.
Why use additives?Why use additives?
……to keep high quality of foodto keep high quality of food ……to make the food look appealing to make the food look appealing ……to give shape and structure to give shape and structure ……to prevent the growth of fungi, moulds to prevent the growth of fungi, moulds
and yeasts and yeasts ……to prevent the oxidation of food to prevent the oxidation of food ……to give a sharp taste to foods to give a sharp taste to foods
Tyes of additivesTyes of additives
ColoursColours EmulsifiersEmulsifiers FlavouringsFlavourings Gelling Agents, Thickeners and StabilisersGelling Agents, Thickeners and Stabilisers PreservativesPreservatives SweetenersSweeteners Anti-Caking Agents Anti-Caking Agents AntioxidantsAntioxidants
ColoursColours
Food look more appealing Food look more appealing Food cooked or processed for sale, they Food cooked or processed for sale, they
lose their natural colour lose their natural colour They cause hyperactivityThey cause hyperactivity
Tyes of additivesTyes of additives
ColoursColours
EmulsifiersEmulsifiers FlavouringsFlavourings Gelling Agents, Thickeners and StabilisersGelling Agents, Thickeners and Stabilisers PreservativesPreservatives SweetenersSweeteners Anti-Caking Agents Anti-Caking Agents AntioxidantsAntioxidants
EmulsifiersEmulsifiers Keeps the mixture of oil and water stable Keeps the mixture of oil and water stable
and prevents from separating into two and prevents from separating into two layers layers
Bread, Chewing gum, Breakfast cereals, Bread, Chewing gum, Breakfast cereals, Ice-cream, …Ice-cream, …
Propane-1,2-diol is used in cake Propane-1,2-diol is used in cake dressings its consequences are still not dressings its consequences are still not knownknown
Tyes of additivesTyes of additives
ColoursColours EmulsifiersEmulsifiers
FlavouringsFlavourings Gelling Agents, Thickeners and StabilisersGelling Agents, Thickeners and Stabilisers PreservativesPreservatives SweetenersSweeteners Anti-Caking Agents Anti-Caking Agents AntioxidantsAntioxidants
FlavouringsFlavourings An imitation of the flavour of a known An imitation of the flavour of a known
foodfood Creative Flavourist Creative Flavourist Possibility of alergiesPossibility of alergies Citric acidCitric acid
Tyes of additivesTyes of additives
ColoursColours EmulsifiersEmulsifiers FlavouringsFlavourings
Gelling Agents, Thickeners and Gelling Agents, Thickeners and StabilisersStabilisers
PreservativesPreservatives SweetenersSweeteners Anti-Caking Agents Anti-Caking Agents AntioxidantsAntioxidants
Gelling Agents, Thickeners Gelling Agents, Thickeners and Stabilisersand Stabilisers
To give shape and structurtoe To give shape and structurtoe To make food thicker To make food thicker To maintain the physical and textural To maintain the physical and textural
properties of foodstuffs properties of foodstuffs
Tyes of additivesTyes of additives
ColoursColours EmulsifiersEmulsifiers FlavouringsFlavourings Gelling Agents, Thickeners and StabilisersGelling Agents, Thickeners and Stabilisers
PreservativesPreservatives SweetenersSweeteners Anti-Caking Agents Anti-Caking Agents AntioxidantsAntioxidants
PreservativesPreservatives Fungistatic in actionFungistatic in action Prevent the growth of fungi, moulds and Prevent the growth of fungi, moulds and
yeasts yeasts Control the spread of bacteria Control the spread of bacteria Alfatoxins are toxic and the most Alfatoxins are toxic and the most
carcinogeniccarcinogenic substances known substances known
Tyes of additivesTyes of additives
ColoursColours EmulsifiersEmulsifiers FlavouringsFlavourings Gelling Agents, Thickeners and StabilisersGelling Agents, Thickeners and Stabilisers PreservativesPreservatives
SweetenersSweeteners Anti-Caking Agents Anti-Caking Agents AntioxidantsAntioxidants
SweetenersSweeteners Most important flavouring substance Most important flavouring substance Source of energy Source of energy Possibilty health problems Possibilty health problems Sugar free sweets and drinks all contain Sugar free sweets and drinks all contain
sweetenerssweeteners Saccharin and aspartam are Saccharin and aspartam are
carcinogeniccarcinogenic
Tyes of additivesTyes of additives
ColoursColours EmulsifiersEmulsifiers FlavouringsFlavourings Gelling Agents, Thickeners and StabilisersGelling Agents, Thickeners and Stabilisers PreservativesPreservatives SweetenersSweeteners
Anti-Caking AgentsAnti-Caking Agents AntioxidantsAntioxidants
Anti-Caking Agents Anti-Caking Agents
added to allow them to flow added to allow them to flow vending machine powders, milk and vending machine powders, milk and
cream powders, grated cheese, baking cream powders, grated cheese, baking powder, instant soup powders, table salt,powder, instant soup powders, table salt,……
Tyes of additivesTyes of additives
ColoursColours EmulsifiersEmulsifiers FlavouringsFlavourings Gelling Agents, Thickeners and StabilisersGelling Agents, Thickeners and Stabilisers PreservativesPreservatives SweetenersSweeteners Anti-Caking Agents Anti-Caking Agents
AntioxidantsAntioxidants
AntioxidantsAntioxidants
Chemicals in the food expose to oxygen Chemicals in the food expose to oxygen in the air in the air
Use to slow the rate of oxidation Use to slow the rate of oxidation Phosphoric acid is used in beers and Phosphoric acid is used in beers and
vegetable oils, it causes diarrhea.vegetable oils, it causes diarrhea.
What are E-numbers?What are E-numbers?
A systematic way of identifying food additives A systematic way of identifying food additives European Food Safety Authority (EFSA) European Food Safety Authority (EFSA)
Series Series Function Function Example Example
E100E100 ColoursColours E160aE160a CaroteneCarotene
E200E200 Preservatives Preservatives E234E234 NisinNisin
E300E300 Antioxidants Antioxidants E307E307 Alpha-Alpha-tocopheroltocopherol
E400+E400+ Miscellaneous Miscellaneous E440E440 Pectin Pectin (stabiliser)(stabiliser)