lessson 9

lessson 9 - Lecture 1: Controversial Food Additives 1....

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Lecture 1: Controversial Food Additives Lesson 9 1. Saccharine (sweet n low) - Oldest artificial sweetner- discovered 1878 as a preservative - banned in 1906 under the pure food and drug act - Ban lifted during WWI due to sugar shortage - GRAS status in 1958; removed in 1972 (bladder cancer in lab mice) - Warning label from 1977 to 2000 - Animal testing…a piece of the puzzle 2. Aspartame (controversial sweetner) EQUAL - Apartame a synthetic sweetner composed of two amino acids: aspartic acid and phenylalanine - -Individual w/ PKU (phenylketonuria) can not metabolize phenylalanine so all products with this sweetner must carry a label statement 3. MSG (monosodium glutamate) Food sources- MSG is the sodium salt of glutamic acid. Common in foods such as seaweed, beets, mushrooms, tomatoes, peas. MSG is added to foods as a flavor enchancer. –MSG Additive forms: - hydrolyzed soy protein; autolyzed yeast extract. Chinese Restaurant Syndrome- doctor described symptoms of this, a double blind placebo controlled study failed to prove it existed. 4. Sulfites (browning inhibitors and preservatives) * sulfites prevent browning and microbial growth Forms of the additive: sulfur dioxide, potassium metabisulfite, sodium metabisulfite, potassium
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This document was uploaded on 10/08/2008.

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lessson 9 - Lecture 1: Controversial Food Additives 1....

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