酶解时间对以多种能源草为底物光发酵产氢的影响。
Effect of enzymolysis time on biohydrogen production from photo-fermentation by using various energy grasses as substrates.
作者信息
Zhang Yang, Zhang Huan, Lee Duu-Jong, Zhang Tian, Jiang Danping, Zhang Zhiping, Zhang Quanguo
机构信息
Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China.
Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.
出版信息
Bioresour Technol. 2020 Jun;305:123062. doi: 10.1016/j.biortech.2020.123062. Epub 2020 Feb 20.
Energy grass is an ideal raw material of biomass energy, and hydrogen energy is one of the ideal renewable energy. In order to study the feasibility of different energy grasses for hydrogen production from photosynthetic organisms, the enzymatic hydrolysis of energy grasses is a very necessary process. Therefore, biohydrogen production from photo-fermentation by using energy grasses as substrates was investgated by changing enzymolysis time. The hydrogen production results were evaluated by the experimental results of hydrogen yield, hydrogen production rate and hydrogen production efficiency. The experimental results showed that Medicago sativa L. with enzymolysis time of 60 h had the highest hydrogen yield, which was 147.64 mL. The highest hydrogen production rate was 5.53 mL/(h·g TS), which was obtained from Arundo donax with enzymolysis time of 36 h, and the highest hydrogen production efficiency was 1.15 mL/(h·g TS), which was obtained from Miscanthus with enzymolysis time of 0 h.
能源草是生物质能源的理想原料，而氢能是理想的可再生能源之一。为了研究不同能源草用于光合生物产氢的可行性，能源草的酶解是一个非常必要的过程。因此，通过改变酶解时间，研究了以能源草为底物进行光发酵产氢。通过产氢量、产氢速率和产氢效率的实验结果对产氢结果进行评价。实验结果表明，酶解时间为60 h的紫花苜蓿产氢量最高，为147.64 mL。酶解时间为36 h的芦竹产氢速率最高，为5.53 mL/(h·g TS)，酶解时间为0 h的芒草产氢效率最高，为1.15 mL/(h·g TS)。
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