lec8 - Lecture 8 Main topics Aspartame warning on label...

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Lecture 8 – Main topics Aspartame – warning on label: “Phenylketonurics contain phenylalanine” Carbohydrates (cont.) - Oligosaccharides : contain 3 – 10 sugar units Example: Fructo-oligosaccharides (FOS) Glucose – [Fructose] n – Fructose FOS are not digested by intestinal enzymes, used as ingredients of some functional foods PREBIOTICS: stimulate the growth of some microbes in the gut, resulting in health benefits. Functional Food: food that may provide a health benefit beyond basic nutrition. Prebiotic is a type of functional food. - Polysaccharides ( > 10 units). (see McGee p.804) STARCH: composed only of glucose units; two types of chains: Amylose : linear and Amylopectin : branched. Deposited in starch granules (insoluble in water). (see McGee p.457) Starch Gelatinization and Starch Retrogradation (see McGee p.458) Stale bread and starch retrogradation. Reheating reverses staling (see McGee p.542). Corn starch and production of Sweeteners (corn syrup and high fructose corn syrup).
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