PROTEIN-BASED
INGREDIENTS
WHEY
PROTEIN
Lactose, minerals, protein, & trace of fats
Dry whey: 76% lactose, 13% protein, 1% fat & 10% ash
Contains all essential amino acids
Serum / watery portion of milk that remains after cheese production
Native state
Highly soluble
Perform emulsification & whipping properties
Denatured state
Lose its solubility at pH 4 to 6.5
WHEY PROTEIN
CONCENTRATE (WPC)
~ 75% protein
function over a wide pH range
Functions: thickening agent, emulsifier, gelling agent
to increase viscosity
to improve texture
Applications: egg substitutes, cakes, nutritional bars, high protein beverages, ice cream, frozen yoghurt
WHEY PROTEIN
ISOLATES
(WPI)
> 90% protein content (pure protein)
High cost
Low lactose ( < 1%) ; low fat ( <0.5%)
Properties: bland flavour
high: gel strength, viscosity, aeration,
water binding ability, solubility
CASEIN &
CASEINATE
Produced from skim milk at pH 4.6
Through addition of acid / microbial culture to precipitae casein from whey
> 85% protein content
Properties: high solubility, low viscosity, clean flavour, excellent emulsification properties, freeze thaw stability, high fat and water binding ability
Applications: coffee whitener, cream liquers, sausages, whipped toppings, dried mix beverages
MILK PROTEIN
ISOLATES
Caseinates + soluble whey protein
Protein content: 89- 94%
Contain all essential amino acids from skim milk
Retort stability for heat-treated product
Bakery items
Liquid nutritional supplements
Good emulsification & water binding properties
Frozen desserts
Whipped toppings
Icings
SOY PROTEIN
CONCENTRATE
Prepared through: acid leaching
extraction with liquid alcohol
protein denaturation with moist heat
water extraction
High dietary fibre (20%)
Economical
Fortification of bars & cereals
SOY PROTEIN
ISOLATE
Highly refined protein
Extracted from dehulled / defatted soybeans with water or mild alkali