Lecture 12-Main topics

Lecture 12-Main - Lecture 12 Main topics Heterocyclic Amines(see McGee p.124-5 MILK and DAIRY PRODUCTS Milk(see McGee p.8-9 Human milk is ideally

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Lecture 12 – Main topics Heterocyclic Amines (see McGee p.124-5). MILK and DAIRY PRODUCTS Milk (see McGee p.8-9). Human milk is ideally formulated to satisfy all the nutrient needs of the newborn. Dairy animals: ruminants (cud-chewing animals) produce abundant milk while eating “ poor- quality ” plants. The cow is our main source of milk; examples of other dairy animals are: goat, sheep, buffalo and even camel. Main breeds of dairy cattle in the U.S. are Holstein, Jersey, Brown Swiss, and Guernsey. Milk components: water, proteins, lipids, carbohydrates (lactose), vitamins and minerals. Whole milk contains: ~87.6% water, ~3.3% Protein; ~3.7% Lipids; ~4.7% Lactose; plus vitamins and minerals. See McGee p.13 (box) Composition of various milks: variation among species and within breeds of the same species. Raw milk: very perishable, easily contaminated. In the past, many diseases (such as tuberculosis) were contracted from contaminated milk. (see McGee p.22) . Raw milk cannot be sold for consumer use across state lines: it is a violation of federal law. Each state regulates the
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This note was uploaded on 02/21/2009 for the course FST 10 taught by Professor Jack during the Fall '08 term at UC Davis.

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