A snapshot of the summary - Milk in the Dairy Chain
Introduction & Milk composition
Which animals species produce milk?Mammals (zoogdieren)
Milk is produced by
mammals. Is milk production unique to mammals?No, pigeons also producemilk....
Ze weken het voedsel, waardoor het een soort van melk wordt, maar het is te debatteren...
When is it called milk..?
Is perspiration (sweating) unique to mammals?Yes, only mammals produce sweat
Give examples of dairy products and diary ingredientsDairy products
- ice cream
- condensed milk
- chocolate milk
- butter milk
- whipped cream
- Animal feed
- Infant formula
- protein powder
How is the dairy production chain looks like?This figure shows the direction of the product going from farm to consumer.
However, it is not a one-way process, because the consukmers demand products, which have consequences for the whole dairy chain.
What is the composition of milk?
Average content in milk (% w/w)Water -- 86.6
Solids-not-fat -- 9.0
Lactose -- 4.6
Fat -- 4.4
Protein -- 3.4
Casein -- 2.7
Minerals -- 0.7
Organic acids -- 0.17
There are many factors that can affect milk composition (4)Cow breed
Seasonal and geographic variation
Put the relative size of the following components in order from small to big
Casein micelle; fat globule; whey proteinWhey protein; casein micelle; fat globule
What are the major fatty
acidsfound in milk fat?
acidsare composed of a hydrocarbonchain and a carboxylgroup)Saturated & Unsaturated Myristic11.1
- samen 2/3 of milk fatty acids
Oleic 17.2 (unsaturated)
What is the protein composition?Caseins
- Depending on species 2-4 different caseins
Serum (whey) proteins
- Always alfa-lactalbumin
- 100's of other proteins depending on specie
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