SURFACTANT-INDUCED HYDROGEN-PRODUCTION IN CYANOBACTERIA

被引:17
|
作者
FAMIGLIETTI, M
HOCHKOEPPLER, A
LUISI, PL
机构
[1] SWISS FED INST TECHNOL, INST POLYMERE, CH-8092 ZURICH, SWITZERLAND
[2] UNIV BOLOGNA, DIPARTIMENTO BIOL, I-40126 BOLOGNA, ITALY
关键词
CYANOBACTERIA; SURFACTANT; HYDROGEN;
D O I
10.1002/bit.260420812
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Addition of Tween 85 to aqueous suspensions of Anabaena variabilis induced photosynthetic evolution of hydrogen over a time span of several weeks: As much as 148 nmol H-2/h . mg dry weight was produced in the first week by a suspension containing 4.2 mg dry weight of cells and 77 mM Tween 85. The chemical structure of Tween 85 was a necessary prerequisite for inducing hydrogen production, as compounds such as Tween 20, 60, and 80 had a quite different effect. There was a coupling between photosynthetic oxygen evolution and hydrogen evolution: Hydrogen evolution started to be effective only when oxygen evolution subdued. The presence of heterocysts in A. variabilis was also required for the Tween-induced hydrogen production. Based on these observations, possible mechanisms for the photosynthetic effect of Tween 85 are advanced and discussed. (C) 1993 John Wiley & Sons, Inc.
引用
收藏
页码:1014 / 1018
页数:5
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