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II. Chemistry of Sugars
II. Chemistry of Sugars

... organic compound on this planet; about 50% of organic mass is cellulose. Cotton is pure cellulose. The β glycosidic link forces each glucose to be flipped 180o with respect to the preceding but the overall chain is essentially linear. Chains then assemble first into 2D sheets which can stack into th ...
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... maltase an enzyme that hydrolyzes maltose maltose a disaccharide composed of two glucose units; sometimes known as malt sugar. monosaccharides carbohydrates of the general formula CnH2nOn that typically form a single ring. phytic acid a nonnutrient component of plant seeds which occurs in the husks ...
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Sugars and Sweeteners - Southern University Ag Center
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... cooperation with the U.S. Department of Agriculture. All educational programs conducted by the Southern University Agricultural Research and Extension Center are provided to all persons regardless of race, national origin, or disability. © 2008 SU Ag Center. ...
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... 1 carbon with hydrogens on each of the 4 valance sites is called methane: METH=1 and alkANE = single bonds. 2 carbons with a double bond is ethane: ETH=2, alkENE = double bonds. See the table in the TeacherNotes. Each compound has different characteristics. Propane (3 carbons, single bonds) is grill ...
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... • contain the elements carbon, hydrogen, oxygen, and nitrogen • composed of MANY amino acid subunits • It is the sequence of the amino acid that forms the primary structure of proteins. • The basic amino acid form has a carboxyl group on one end, a methyl group that only has one hydrogen in the midd ...
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Carbohydrate



A carbohydrate is a biological molecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen:oxygen atom ratio of 2:1 (as in water); in other words, with the empirical formula Cm(H2O)n (where m could be different from n). Some exceptions exist; for example, deoxyribose, a sugar component of DNA, has the empirical formula C5H10O4. Carbohydrates are technically hydrates of carbon; structurally it is more accurate to view them as polyhydroxy aldehydes and ketones.The term is most common in biochemistry, where it is a synonym of saccharide, a group that includes sugars, starch, and cellulose. The saccharides are divided into four chemical groups: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. In general, the monosaccharides and disaccharides, which are smaller (lower molecular weight) carbohydrates, are commonly referred to as sugars. The word saccharide comes from the Greek word σάκχαρον (sákkharon), meaning ""sugar."" While the scientific nomenclature of carbohydrates is complex, the names of the monosaccharides and disaccharides very often end in the suffix -ose. For example, grape sugar is the monosaccharide glucose, cane sugar is the disaccharide sucrose and milk sugar is the disaccharide lactose (see illustration).Carbohydrates perform numerous roles in living organisms. Polysaccharides serve for the storage of energy (e.g., starch and glycogen) and as structural components (e.g., cellulose in plants and chitin in arthropods). The 5-carbon monosaccharide ribose is an important component of coenzymes (e.g., ATP, FAD and NAD) and the backbone of the genetic molecule known as RNA. The related deoxyribose is a component of DNA. Saccharides and their derivatives include many other important biomolecules that play key roles in the immune system, fertilization, preventing pathogenesis, blood clotting, and development.In food science and in many informal contexts, the term carbohydrate often means any food that is particularly rich in the complex carbohydrate starch (such as cereals, bread and pasta) or simple carbohydrates, such as sugar (found in candy, jams, and desserts).
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