当前位置： SCI文献检索 > BIORESOURCE TECHNOLOGY期刊下所有文献 > A novel glycosylated solution from Dioscorea zingiberensis C.H. Wright significantly improves the solvent productivity of Clostridium beijerinckii.

A novel glycosylated solution from Dioscorea zingiberensis C.H. Wright significantly improves the solvent productivity of Clostridium beijerinckii.

Abstract：

:The economics of bio-solvent production are largely dependent on the cost of the fermentation substrate. Dioscorea zingiberensis C.H. Wright (DZW), the main raw material used to produce saponin, contains 13-18% starch which can be directly saccharified to a saccharification liquid of DZW starch (SLDS) that contains abundant nutrients. In this study, the water-soluble micromolecule compounds in SLDS were quantified through 1H NMR. Using SLDS as the substrate to conduct ABE fermentation by Clostridium beijerinckii, the fermentation cycle was shortened 24h, the maximum biomass and consumption rate of the glucose significantly increased, and the productivity of total solvents were increased by 0.244±0.010g/L/h compared to standard P2 medium. Expression analysis of genes encoding key enzymes involved in acetone and butanol production and glucose consumption showed that they were induced by SLDS. Taken together, SLDS is a useful and renewable glycosylated solution for ABE fermentation.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Xiao C,Fan W,Du S,Liu L,Wang C,Guo M,Zhang L,Zhang M,Yu L

doi

10.1016/j.biortech.2017.03.176

subject

Has Abstract

pub_date

2017-10-01 00:00:00

pages

317-324

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(17)30458-3

journal_volume

241

pub_type

杂志文章

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