Biochemical and structural characterization of the glucan and fructan exopolysaccharides synthesized by the Lactobacillus reuteri wild-type strain and by mutant strains
Article Abstract:
A large collection of lactobacilli has been screened for strains producing exopolysaccharides from sucrose. One of these strains was identified as Lactobacillus reuteri LB 121. This strain was found to synthesize large amounts of water-soluble exopolysaccharides with both glucose and fructose as its constituents. Biochemical and mutational identification of the biosynthetic enzymes involved and structural characterization of the glucan and fructan synthesized by the strain were reported and discussed.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Culture conditions affect the molecular weight properties of hyaluronic acid produced by Streptococcus zooepidemicus
Article Abstract:
The culture conditions that influence the molecular weight properties of hyaluronic acid (HA) generated by Streptococcus zooepidemicus were examined using a batch culture containing a complex medium with glucose and yeast extract. Results show that the inherent variability of biological processes of HA-containing substances are hindrances to achieving repeatable data. Furthermore, the culture of hydrogen-ion concentration had minimal effect on the rate of production of the bipolymer.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Purification and characterization of two xylanases from alkalophilic Cephalosporium sp. strain RYM-202. Glycine betaine: reserve form of choline in Penicillium fellutanum in low-sulfate medium
- Abstracts: Head spot and dilute mutations in the Norway rat. Parentage and kinship studies in an obligate brood parasitic bird, the brown-headed cowbird (Molothrus ater), using microsatellite DNA markers
- Abstracts: Phylogeny and classification of bacteria in the genera Clavibacter and Rathayibacter on the basis of 16S rRNA gene sequence analyses. part 2
- Abstracts: Monounsaturated but not polyunsaturated fatty acids are required for growth of the deep-sea bacterium Photobacterium profundum SS9 at high pressure and low temperature