Hydrogen production by fermentative consortia
Hydrogen production by fermentative consortia
复制标题
DOI：
10.1016/j.rser.2008.03.003
复制
发表时间：
2009-06
影响因子：
15.9
通讯作者：
I. Valdez‐Vazquez;H. Poggi‐Varaldo
中科院分区：
文献类型：
--
作者：
I. Valdez‐Vazquez;H. Poggi‐Varaldo
本文综述了厌氧混合菌产氢的研究进展。首先，不同的厌氧微生物群落，有一个直接的关系，产生或消耗的H2进行了讨论。然后，不同的方法来抑制H2消耗细菌进行了分析（主要是在产甲烷阶段），如生物动力学控制（低pH值和短的水力停留时间），热休克处理和化学抑制剂沿着它们的优点/缺点，其在工业规模上的应用。在此基础上，阐述了碳水化合物降解为H2、有机酸和溶剂的生化途径。第四，结构，多样性和动态的H2生产者社区进行了详细说明。氢酶的结构和活性与产氢有关。分析了产氢抑制的原因，沿着提出了避免产氢抑制的策略，最后提出了固定化细胞系统作为提高产氢的一种途径。
In this work, H2production by anaerobic mixed cultures was reviewed. First, the different anaerobic microbial communities that have a direct relation with the generation or consumption of H2are discussed. Then, the different methods used to inhibit the H2-consuming bacteria are analyzed (mainly in the methanogenesis phase) such as biokinetic control (low pH and short hydraulic retention time), heat-shock treatment and chemical inhibitors along with their advantages/disadvantages for their application on an industrial scale. After that, biochemical pathways of carbohydrate degradation to H2, organic acids and solvents are showed. Fourth, structure, diversity and dynamics of H2-producers communities are detailed. Later, the hydrogenase structure and activity is related with H2production. Also, the causes for H2production inhibition are analyzed along with strategies to avoid it. Finally, immobilized-cells systems are presented as a way to enhance H2production.