Transisomaltosylation activity of a bacterial isomalto-dextranase.

Synthesis of isomalto-oligosaccharides by using recombinant dextransucrase and Hypocrea lixii dextranase

Due to their abundant nutrition and potential prebiotic functions, the potential development of oligosaccharide synthesis is very important. In this context, Synergistic catalytic manner of recombinant dextransucrase and Hypocrea lixii dextranase were elucidated according to carbohydrate analysis by carbohydrate gel electrophoresis and high performance liquid chromatography. The molecular weigh...

Molecular cloning and expression of an isomalto-dextranase gene from Arthrobacter globiformis T6.

The gene encoding an extracellular isomalto-dextranase, designated imd, was isolated from the chromosomal DNA of Arthrobacter globiformis T6 and cloned and expressed in Escherichia coli. A single open reading frame consisting of 1,926 base pairs that encoded a polypeptide composed of a signal peptide of 39 amino acids and a mature protein of 602 amino acids (M(r), 65,900) was found. The primary...

Manufacturing-Processing DEXTRANS AND DEXTRANASE

Information was sought on the cause, effects, and control of dextran in sugar manufacture in Jamaica. Storage experiments on manually harvested, burnt, whole-stalk cane revealed that Leuconostoc mesenteroides was the predominant spoilage organism. Its growth was accompanied by significant increases in dextran content and juice viscosity. However, these parameters. did not increase linearly with...

comparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

Comparative Study of L-asparaginase Activity in Different Bacterial Species