文献类型：期刊文献

英文题名：Effects of vitamins (nicotinic acid, vitamin B₁ and biotin) on phototrophic hydrogen production by Rhodobacter sphaeroides ZX-5

作者：Li, Xu[1];Shi, Huan[1];Wang, Yonghong[1];Zhang, Siliang[1];Chu, Ju[1];Zhang, Ming[1];Huang, Mingzhi[1];Zhuang, Yingping[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China

年份：2011

卷号：36

期号：16

起止页码：9620

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000294374800025)】；

基金：This study was financially supported by National Basic Research Program of China (973 Program, 2007CB714303), the National Special Fund for State Key Laboratory of Bioreactor Engineering (2060204) and Shanghai Leading Academic Discipline Project (B505).

语种：英文

外文关键词：Photo-hydrogen production; Rhodobacter sphaeroides; Vitamin; Nicotinic acid; NAD(+)/NADH

摘要：The effects of vitamins (nicotinic acid, vitamin B-1 and biotin) on the growth and hydrogen production of Rhodobacter sphaeroides ZX-5 were investigated by batch culture in this study. The results showed that nicotinic acid, as a precursor of NAD(+)/NADH, plays a crucial role in effectively enhancing the phototrophic hydrogen synthesis during photo-fermentation process. Lack of nicotinic acid in hydrogen production medium resulted in the failure of photo-hydrogen production. In addition, though vitamin B-1 and biotin do not have direct impact on photo-hydrogen production, they are still essential and must exist in either growth medium or hydrogen production medium. Without either of them, photo-hydrogen production decreased seriously, regardless of the existence of nicotinic acid. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.