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] State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, 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：EI(收录号：20113114202142)

语种：英文

外文关键词：Image enhancement - Vitamins - Coenzymes - Batch cell culture

摘要：The effects of vitamins (nicotinic acid, vitamin B1 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 B1 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. ? 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.