BIO 111 Lecture Notes - Lecture 29: Foam Cell, Yogurt, Ecliptica
24 Dec 2020
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Document Summary
Produced by lactating mammals to feed their young. Lactose = disaccharide of glucose + galactose. Milk is defined based upon its fat contents. Separation of milk fat and fluid without homogenization. Fat rises to top less dense. Milk is stored in containers that block uv light. Lacks vitamin d (unless fortified), vitamin c, and iron. Produced by cows not treated by antibiotics and growth hormones. Removal of as much fat as possible. Powered, dry milk made by dehydrating fluid milk. Cream high fat liquid separated from fluid milk by centrifugal force. Whipping cream agitation is a means to denature a protein. Agitated heavy cream creates latex like bubble filled with air. Protein in cream acts as foaming agents. Fat globules surround air bubbles and stabilize foam cells. Cold temperature maintains fat globules in solid form. Pasteurization heating process applied to food to destroy pathogenic microorganisms. Transmit tuberculosis, scarlet fever, typhoid, diphtheria, or undulant fever.
