Polyol pools inAspergillus niger

Molecular strategy for identi¢cation inAspergillus sectionFlavi

Aspergillus flavus is one of the most common contaminants that produces aflatoxins in foodstuffs. It is also a human allergen and a pathogen of animals and plants. Aspergillus flavus is included in the Aspergillus section Flavi that comprises 11 closely related species producing different profiles of secondary metabolites. A six-step strategy has been developed that allows identification of nin...

Polyol Laxative Threshold Value

Polyol dehydrogenase of the silkworm.

Richert, D. A. & Westerfeld, W. W. (1957). Fed. Proc. 16, 238. Romanoff, E. B. & Hunt, C. A. (1954). Amer. J. Physiol. 179, 15. Schneider, W. C. & Hogeboom, G. H. (1952). J. biol. Chem. 195, 161. Sonnenschein, N. & Kopac, M. J. (1955). J. cell. comp. Ph.iol. 45, 361. Stevens, B. M. & Reid, E. (1956). Biochem. J. 64, 735. Umbreit, W. W. & Tonhazy, N. E. (1951a). J. biol. Chem. 191, 257. Umbreit,...

Polyol Dehydrogenases of Gluconobacter Oxydans.

The secondary hydroxyl group involved in the oxidation, and the cis-vicinal secondary hydroxyl group, must have a D configuration jvith respect to t,he primary alcohol group adjacent to the site of oxidation. This specific mode of otida,tion facilitated the synthesis of several new ketoses. In a series of papers, Hudson and Richtmyer and their a.ssociates described the microbiological synthesis...

Synthesis of Transesterified Palm Olein-Based Polyol and Rigid Polyurethanes from this Polyol

Transesterification of palm olein with glycerol can increase the functionality by introducing additional hydroxyl groups to the triglyceride structure, an advantage compared to using palm olein directly as feedstock for producing palm-based polyol. The objective of this study was to synthesize transesterified palm olein-based polyol via a three-step reaction: (1) transesterification of palm ole...