Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7791533 | Carbohydrate Polymers | 2014 | 7 Pages |
Abstract
The characteristics of the growth of Leuconostoc mesenteroides BD1710 and the synthesis of dextran in tomato juice supplemented with 15% sucrose were assayed. L. mesenteroides BD1710 could synthesize approximately 32 g Lâ1 dextran in the tomato-juice-sucrose medium when cultured at 28 °C for 48 h, which was on the same level as the dextran yield in a chemically defined medium. The viscosity of the cultured tomato-juice-sucrose medium with various dextran contents was also measured. The results of the monosaccharide composition, molecular-weight distribution, Fourier transform infrared spectra (FTIR) and nuclear magnetic resonance spectra (NMR) showed that the polysaccharide synthesized by L. mesenteroides BD1710 in the tomato-juice-sucrose medium was dextran with a peak molecular weight of 6.35 Ã 105 Da, a linear backbone composed of consecutive α-(1 â 6)-linked d-glucopyranosyl units and approximately 6% α-(1 â 3) branches.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Jin Han, Feng Hang, Benheng Guo, Zhenmin Liu, Chunpin You, Zhengjun Wu,