Arabitol

About: Arabitol is a research topic. Over the lifetime, 388 publications have been published within this topic receiving 8398 citations. The topic is also known as: D-(+)-Arabitol & D-arabitol.

Production of arabitol by microorganism of genus rahnella

Abstract: PURPOSE:To easily produce D-arabinose in a mass at a low cost by culturing a microbial strain of genus Rahnella under aerobic condition in a medium containing D-arabinose. CONSTITUTION:A precultured Rahnella aquatilis (JCM-1683) is inoculated in a medium containing 1-20wt.% of D-arabinose, a nitrogen compound such as peptone, an inorganic salt such as Mg, etc., and cultured at 20-37 deg.C for 1-10 days under aerobic condition to produce arabitol in the medium. As necessary, the above microorganism of genus Rahnella is cultured in a medium containing monosaccharide (e.g., arabinose), organic acid (e.g., gluconic acid), nitrogen compound (e.g., peptone), etc., to obtain microbial cells. The microbial cells or treated cell such as extract of the cell are added to a solution of D-arabinose having a concentration of 1-40wt.% and reacted to produce arabitol in the reaction liquid.

Studies on the production of glycerol and arabitol by osmophilic yeasts iv.carbohydrate metabolism in osmophilic yeasts

Abstract: 1. Activity of enzymes of EMP and pentose phosphate cycle was determined in cell-free extracts of two strains of osmophilic yeasts. i.e., Hansenula arabitolgenes Fang 275 and Zygosaccharomyces chevalieri Guill. 2.309. Except phosphofructkinase, which was not detected in 2.309, all other key enzymes were present in the extracts of both strains. 2. A NADP-linked polyol dehydrogenase, which catalyzed the reduction of di- hydroxyacetone to glycerol (in both 275 and 2.309) and D-Ribulose to D-arabitol (in 275 only) was found in both strains. 3. Respiration experiments using glucose-C~(14) showed that pentose phosphate cycle was more dominant in strain 275. This is in accordance with the fact that strain 275 produced more 5-carbon compound-arabitol.

Monopropylene glycol added to fermentation

Abstract: A method for fermenting a microorganism, producing a polypeptide of interest, in a culture medium of at least 50 litres, comprising:adding one or more compounds selected from the group consisting of monopropylene glycol, ethylene glycol, trehalose, xylitol, arabitol, dulcitol, mannitol, erythritol, cellobiose and sorbitol, to the culture medium before and/or during fermentation, wherein the compound is low metabolizable.

Method for preparation of arabitol

Abstract: Process for the preparation of D-arabitol, characterized in that it comprises the following steps: - the hydrolysis of a lactose solution, - oxidation of the mixture of glucose and galactose and obtained into a mixture of gluconic and galactonic acids, - decarboxylation of this mixture of gluconic and galactonic acids to a mixture of D-arabinose and D-lyxose, - the catalytic hydrogenation of this mixture D-arabinose and D-lyxose to D-arabitol.