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学科主题: 物理化学
题名: EFFECT OF NUTRIENT DEPRIVATION ON BIOCHEMICAL COMPOSITION AND PHOTO-HYDROGEN PRODUCTIO OF PLATYMONAS SUBCORDIFORMIS
作者: Ji CF(纪超凡) ;  Yu XJ(虞星炬) ;  Chen ZA(陈兆安) ;  JackLEGRAND ;  Zhang W(张卫)
会议名称: 9th International Marine Biotechnology Conference
会议日期: 2010-10-8
出版日期: 2010-10-08
会议地点: 中国
其他题名: 亚心型扁藻培养过程中元素缺乏对其生化组成及产氢量的影响
通讯作者: 曹旭鹏
部门归属: 十八室
主办者: 中国科学院、国家自然科学基金委员会以及青岛市人民政府支持下,由中国科学院海洋研究所主办
摘要: Platymonas subcordiformis, a marine green alga, was demonstrated to photo-biologically produce hydrogen when regulated by a proton uncoupler CCCP (Carbonyl Cyanide m-Chlorophenylhydrazone). This process composes of two stages: algal cultivation and hydrogen production. In the first stage the green alga grow to accumulate biomass and starch. In the second stage, the algal biomass is subjected to a period of dark anaerobic induction of hydrogenase activity and then exposed to light irradiation for photo-evolution of hydrogen using CCCP regulation. CCCP acts to create an anaerobic environment, essential for hydrogen production by reducing the photosystem II (PSII) activity (oxygen evolution) of P. subcordiformis cells below the respiration activity (oxygen consumption of intracellular carbohydrate). Therefore the carbohydrate content in algal cells determines the final hydrogen yield because hydrogen evolution will effectively stop as soon as it is completely consumed. In this! study, it was found that the nitrogen concentration in the medium influenced both the cell growth and also the starch content of P. subcordiformis cells in the first cultivation stage. Nitrogen limitation reduced biomass yield, but increased the carbohydrate content, resulting in higher hydrogen yield
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/114204
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Ji CF,Yu XJ,Chen ZA,et al. EFFECT OF NUTRIENT DEPRIVATION ON BIOCHEMICAL COMPOSITION AND PHOTO-HYDROGEN PRODUCTIO OF PLATYMONAS SUBCORDIFORMIS[C]. 见:9th International Marine Biotechnology Conference. 中国. 2010-10-8.
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