FOOD 2400 Lecture Notes - Lecture 6: High Fructose Corn Syrup, Corn Syrup, Inverted Sugar Syrup
9 Aug 2017
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Unit 6: structure of carbohydrates : general formula, cx(h20)y, glucose is the main sugar (in plants) while glycogen is the storage carbohydrate in animals. Monosaccharides : most basic unit that are the smallest unit and cannot be hydrolyzed into anything smaller, however they do combine to make disaccharides and higher polymers. When 2-10 monosaccharide units are joined, they form the class of oligosaccharides (oligo= few). when. 10 or more monosaccharide units are joined, they form a polysaccharide (poly = many): d-glucose generated from d-glyceraldehyde the optical isomer in dextrorotatory form. Naturally occurring sugars belong to the d-series, as opposed to the l (levorotatory) series. Therefore, it has the ability to reduce metal ions, such as silver or copper, while the sugar is oxidized to a carboxylic acid. Glucose is an example of a reducing sugar because it"s carbonyl group is available to participate in redox reactions. Fehling"s test is used to test for reducing sugars.
