notes2 - I. Milk and dairy products (book pay attention for...

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I. Milk and dairy products (book pay attention for heading) a. Dairy histyro i. Goats and sheep domesticated for meat and skin 6500 BC ii. Rock drawing in the Sahara show dairying 4000 BC iii. Old testament has many metaphors with milk and dairying iv. v. Marco polo (travels 1271-1295) observed tartars preparing dried mare’s milk vi. Russians fermented mares milk called “kumiss” vii. Balkans’ fermented a similar beverage from cows called “ kefir viii. ix. Romans and greek ate cheese, but not milk x. Northern Europeans ate milk but not cheese xi. Greek: “ galaktopotes ” or “milk drinkers” xii. Why?- maybe because of lactose intolerance xiii. xiv. Mc gee called this “ethnic chauvinism” xv. xvi. The colonists introduced dairy to America about 1625 xvii. Dairying was a modern industry by 1850 b. Milk-composition i. Milk is a white opaque fluid of female mammals for the total sustenance of their offspring c. Milk secretion-exocytosis i. Milk has Proteins, fats, minerals, etc ii. Page 17 in the book d. Milk composition i. milk compositon varies with species ii. human milk has 1. more lipids 2. less protein 3. more lactose 4. less minerals 5. than other animals iii. also varies with regiaon climate, season type of feed 1. naturally California claims it s cows are the best 2. and the diet is good and specific for our region iv. how the cows are maintained 1. animals husbandry a. (content, happy cows do produced better milk) v. And species of cow (types of cows) (some cows produce lots of milks than others) 1. holestein, jersery, Guernsey 2. bred for size, genetic and milk quality and production e. 3- new terms to produce- probiotic , prebiotic and symbiotic
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Preobiotic- live strains of good bacteria, which telp our digestive system work effeiciently 1. eg. Bifidus, lactobacillus and acidopilus ii. prebiotic-nutrients bacteria feed on to increase their numbers 1. ex.fructo-oligosaccharides (“FOS” is a popular labeling term) iii. symbiotic 1. products that contain both iv. modern day interest v. a recent cnn clip f. milk-special compositon i. the first fluid secreted by the mammary gland is colostrum ii. a clear solution of concentrated protein, vitamins and antibodies iii. secreted for a few days to a week or more iv. don’t know if its good for us v. “lactobacillus bifidus factor” or sometimes just called “bifidus factor” encourages colonization of lactobacillus bifidus g. Another related supplemental pill form i. The main pitch is for lactobacillus acidophilus but also has lactobacillus bifidus h. Milk proteins i. 2 general types of milk proteins are based on their reaction with acids or chymosin( rennin) ii. (1 )- casesins or curds (clumps) iii. (2 )- lactoglobulins or whey-souble proteins iv. Casein and minerals (phosphate and calcium) from micells in milk v. The calcium is a highly absorbable form vi. Chymosin or acid cause casein particles to clump (curdle) vii. i.
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This note was uploaded on 04/18/2008 for the course FST 10 taught by Professor Jack during the Spring '08 term at UC Davis.

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notes2 - I. Milk and dairy products (book pay attention for...

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