Biochemical characterization of the hydrogen photoevolution in cyanobacterium Oscillatoria chalybea

被引：3

作者：

Yousef, Naeima M. H. ^{[1
]}

Aldaby, Eman S. E. ^{[1
]}

机构：

[1] Assiut Univ, Dept Bot & Microbiol, Fac Sci, Assiut 71526, Egypt

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 48期

关键词：

Oscillatoria chalybea; Hydrogen photoevolution; Nickel chloride; pH; Buffers; Temperature; TRANSCRIPTIONAL REGULATION; H-2; PRODUCTION; METABOLISM; EVOLUTION; NICKEL; OXYGEN;

D O I：

10.1016/j.ijhydene.2016.09.194

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The filamentous non-heterocystous cyanobacterium Oscillatoria chalybea showed molecular hydrogen photoevolution under different conditions. The major part of determined hydrogen evolution would be derived from a hydrogenase system distinct from the nitrogenase. To improve the hydrogen production, different buffers, temperatures, pH values and some inorganic cofactors were studied. The results revealed that the best buffer was Tricine-KCl, the optimum temperature was 25 degrees C, the optimum pH value was within the range 7-7.5 and the optimum concentration of nickel chloride was 50 mu M that improved also the growth of O. chalybea. The influence of inorganic cofactors showed that the addition of 10(-5) MnCl2 increases the photoevolution of molecular hydrogen. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：22831 / 22836

页数：6

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