The effects of syringaldehyde and vanillin on butyric acid production by fermentation using clostridium tyrobutyricum

被引：0

作者：

Liu Y. ^{[1
,2
]}

Geng Y. ^{[2
]}

Zhou Q. ^{[2
]}

Yuan W. ^{[2
]}

机构：

[1] Guangdong Engineering Research Centre for Marine Algal Biotechnology, Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen

[2] Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, 27695, NC

来源：

BioResources | 2019年 / 13卷 / 03期

基金：

美国食品与农业研究所;

关键词：

Butyric acid; Clostridium tyrobutyricum; Inhibitors; Lignocellulosic hydrolysate; Syringaldehyde; Vanillin;

D O I：

10.15376/biores.13.3.5850-5861

中图分类号：

学科分类号：

摘要：

Butyric acid is a valuable chemical that has various applications in the chemical, pharmaceutical, food, and biofuel industries. Its bio-fermentation from lignocellulosic materials may be affected by some unwanted substrates that are generated during biomass pretreatment processes. In the present study, the potential inhibitory effects of two phenolic aldehydes (syringaldehyde and vanillin) on butyric acid fermentation by Clostridium tyrobutyricum were evaluated. The toxicity of syringaldehyde and vanillin on cell growth, xylose consumption, and butyric acid production was dosage-dependent. The butyric acid productivity decreased significantly with increasing concentrations of syringaldehyde and vanillin. C. tyrobutyricum demonstrated a broad tolerance to both syringaldehyde and vanillin and only moderate reductions in the maximum cell density were observed with up to 2.4 g L-1 of syringaldehyde or vanillin in the medium. Both syringaldehyde and vanillin were assimilated by C. tyrobutyricum, and the metabolite products from vanillin caused considerable inhibition of the fermentation. © 2018, BioResources.

引用

页码：5850 / 5861

页数：11

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