Sorbose


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Related to Sorbose: l-sorbose, xylulose, Talose

sorbose

[′sȯr‚bōs]
(biochemistry)
C6H12O6 A carbohydrate prepared by fermentation; produced as water-soluble crystals that melt at 165°C; used in the production of vitamin C. Also known as sorbin.

Sorbose

 

a monosaccharide of the ketohexose group. Sorbose is a sweet-tasting crystalline substance that is readily soluble in water. It exists in the optically active D and L forms. In nature, for example, in the juice fermented by bacteria of the berry-like fruit of the mountain ash, the L form is encountered (melting point, 159°–161°C). Sorbitol, an alcohol corresponding to sorbose and having six hydroxyl groups, is common in the fruits of the Rosaceae family (up to 7 percent in the berries of the mountain ash). Sorbose may be obtained chemically by condensing glyceraldehyde together with dihydroxyacetone in an alkaline medium or by using microorganisms for the fermentative oxidation of D-sorbitol. The latter method is used in industry because sorbose is an important intermediate in the production of ascorbic acid, or vitamin C.

References in periodicals archive ?
Once a Gram-positive, catalase-negative coccus has been identified as an enterococcus, the genus can be split into four groups based on acid production in mannitol, sorbitol, sorbose, and arginine hydrolysis.
Out of nine C sources (glucose, galactose, dextrin, lactose, maltose, sorbose, xylose, fructose, sucrose) and six N sources (urea, ammonium chloride, ammonium sulphate, ammonium nitrate, ammonium phosphate, potassium nitrate and sodium nitrate) tested, 12% dextrin and 2% ammonium sulphate revealed the best results, yielding up to 60.
Neither strain tested grew on sorbose as the sole carbon source.
This bacteria was found to be able to hydrolyze various carbohydrates, including L-arabinose, galactose, fructose, mannose, [alpha]-methyl-D-glucoside, N-acethyl-glucosamine, D-turanose, salicin, cellobiose, [beta]-gentiobiose, and D-xylose (Table 1), but did not utilize D-arabinose, erythritol, sorbose, dulcitol, inositol, [alpha]-methyl-D-mannoside, Lactose, D, L-arabitol, 2-keto-gluconate, or 5-keto-gluconate (Table 1).