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Dextran Synthesized by Leuconostoc Mesenteroides BD1710 in Tomato Juice Supplemented With Sucrose

Dextran Synthesized by Leuconostoc Mesenteroides BD1710 in Tomato Juice Supplemented With Sucrose

Jin Han, Feng Hang, Benheng Guo, Zhenmin Liu, Chunpin You, Zhengjun Wu

Carbohydr Polym. 2014 Nov 4;112:556-62.

PMID: 25129781

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 L(-1) 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 × 10(5)Da, a linear backbone composed of consecutive α-(1 → 6)-linked d-glucopyranosyl units and approximately 6% α-(1 → 3) branches.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP9004540-A	Dextran from Leuconostoc mesenteroides		9004-54-0	Price

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