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Construction of hydrogenase gene deletion mutant of Rhodopseudomonas palustris and condition optimizing for dark-photo ferment hydrogen production

Abstract

随着全球能源危机、生态环境恶化等问题的日益凸显,氢能作为一种清洁的二次能源,其研究、开发和利用正受到越来越广泛的重视。到21世纪中叶,氢能有可能成为广泛使用的燃料之一。在各种制氢方法中,由于生物制氢能利用有机废物并消除环境污染而日益受到重视。生物制氢包括暗发酵制氢和光发酵制氢。在暗发酵条件下,微生物利用有机底物产氢,同时产生大量的有机酸和醇类等代谢产物,而许多光合细菌在光照条件下可利用这些有机酸和醇继续产氢。因此可利用暗发酵与光发酵联合产氢来提高有机底物发酵产氢量。 本研究以甘蔗渣为产氢原料,以产酸克雷伯氏菌(Klebsiellaoxytoca)HP1为暗发酵产氢菌株、以光合细菌(Rhodo...In a variety of hydrogen production methods, biological hydrogen production has received increasing attention because it can use organic waste and eliminate environment pollution. Biological hydrogen production could be classified as dark ferment hydrogen production and light ferment hydrogen production. Under dark ferment conditions, hydrogen producing bacteria could utilize organic substrate to ...学位:理学硕士院系专业:生命科学学院生物化学与生物技术系_微生物学学号:2162007115192

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