-
Composition
- Water 87%
- Lactose 4.9%
-
Fat 3.6%
- Saturated fatty acids:
Palmitic acid: 31%
Myristic acid: 12%
Stearic acid: 11%
Lower (at most 12 carbon atoms) saturated fatty acids: 11%
pentadecanoic acid and heptadecanoic acid: traces
Unsaturated fatty acids:
Oleic acid: 24%
Palmitoleic acid: 4%
Linoleic acid: 3%
Linolenic acid: 1%
-
Protein 3.5%
-
Whey 20%
- Animal feed
-
Processing (filtration) to obtain whey protein only
- Protein supplement
- Amino acids L-Glutamine
- Casein 80%
- Minerals 0.7%
-
Products
-
Cheese production
- 1 kg cheese/9 kgs of whey produced
-
process, add specific enzymes to break casein bonds (renneting)
-
By-product Whey
- Composition
- --fractionation --beverages/condensing/drying/whey powder/lactose
- Water 87%
- Lactose 5%
- Protein 1%
- Minerals 0.6%
- Fat 0.2%
-
Aggregate to form Curds
- Cheese
-
--separators
-
Cream
-
-- churning
- Butter
-
Homogenizers/Pasteurizers 62-66C @30mins or 72-78 @15secs/Warmers
-
--standardisation
- milk cooled @10C
- Flavoured milk
- Blended products
-
Skimed milk
-
--condensing, evaporators, drying
- Ice-cream
- skim powder
- milk concentrate powder
- Casein products --via precipitation
-
Cultured products
- Yoghurt
- Cottage cheese
- Sour cream
-
Waste Whey
-
Gas production
-
Anaerobic digestion process
- methane+carbon dioxide
-
Ethanol production
- lactose + H2O → galactose + glucose galactose + glucose → 4xethanol + 4CO2
-
Water consumption (approx) 1.3-2.5 L/kg milk, better 0.8-1.0 L/kg/milk
- Products incorporation 40%
-
Utilities 16%
- Boiler 2%
- Cooling Tower 5%
- Cheese room 13%
- Cleaning/CIP 8%
- Crate washer 4%
- Filling 3%, Receipt area 2%, Cold storage 2%