Post on 24-Dec-2015
Al-najah university
dep of animal production and health
Whey protein
Prepared : Mohmmad HamdanPrepared : Mohmmad Hamdan
Instructor : Mohammad Sabah Instructor : Mohammad Sabah
What is WheyWhat is Whey
Whey is the watery portion of milk remaining after milk coagulation and removal of the curd. Whey can be obtained by acid, heat, and rennet coagulation of milk. There are two types of whey.
Sour Whey PH 3.8 - 4.6
Sweet Whey PH 5.2 - 6.7
Sour\Acid WheySour\Acid Whey
Acid Whey: Acid whey is obtained during making of acid type of cheese such as cottage cheese.
PH 3.8 - 4.6
Sweet WheySweet WheySweet Whey: Sweet whey is
manufactured during making of rennet type hard cheese like cheddar or Swiss cheese.
PH 5.2 - 6.7
Individual Proteins of WheyIndividual Proteins of Whey
b -lactoglobulin 50% a -lactalbumin 20% Immunoglobulins 20% Serum Albumin 5% Minor Proteins 5%
BetaBeta--lactoglobulin lactoglobulin
-Lactoglobulin is the most abundant protein in whey (about 6 g/l) and is responsible for functional properties such as the ability of whey protein to form a gel on heating.
Alpha-lactalbumin Alpha-lactalbumin
• Alpha-lactalbumin is a whey protein high in the amino acid tryptophan, which the body uses to make the neurotransmitter serotonin.
• Purified alpha-lactalbumin is most readily used in infant formula manufacturing, as it has the most structurally similar protein profile compared to breast milk.
ImmunoglobulinsImmunoglobulins• An immunoglobulin (Ig) is an antibody
• whey fraction of milk appears to contain a significant amount of immunoglobulins, approximately 10-15 percent of total whey proteins.
Choice Of Whey Processes.Choice Of Whey Processes.
Depends on the type of wheyDepends on market & locationClimate
Membrane filtration of Membrane filtration of WheyWheyWhey divided by use of membrane filter
UltrafilterationMicrofilterationNanofilteration
Resulting inWhey protein concentrate Whey portein isolate Lactose Permeate
Whey Protein ConcentrateWhey Protein Concentrate
Whey protein concentrate has anywhere between 29% and 89% protein depending upon the product. As the protein level in whey protein concentrate decreases the amounts of fat and/or lactose usually increase.
Whey Protein IsolateWhey Protein Isolate
Whey protein isolate is the most pure and concentrated form of whey protein available. It contains 90% or more protein and very little (if any) fat and lactose.
Drying of whey Preheating Concentration Flash cooling Precrystallization Spray drying Cooling in a vibrated fluid bed Spray Drying without Crystallization Treatment
Whey Protein CoatingWhey Protein CoatingFor whey coating for improving packaging
material Whey Protein Coating for Formulations &
application methods for dry a• Coating Formulations
• Coating process conditions
• Quality & Shelf life improvements
Further ResearchFurther Research
Oxygen Coatings on food Gloss Coatings on SweetsOxygen Barriers on plastics Moisture Coatings on PlasticsMoisture Barriers on food Anti-microbial coatings on cheese Edible/biodegradeable films and
containers
Medical ResearchMedical ResearchWhey Protein Concentrates-
stimulate Cell-mediated & humoral immunity for neck and head cancer patients.
Several whey proteins display anti-microbial & antiviral activity