Galactose-based biohydrogen production from seaweed biomass by novel strain Clostridium sp. JH03 from anaerobic digester sludge

IF 2.5 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Jeong Hyeon Hwang, Hyun Joong Kim, Hyun Jin Kim, Nara Shin, Suk Jin Oh, Jeong-Hoon Park, Won-Dong Cho, Jungoh Ahn, Shashi Kant Bhatia, Yung-Hun Yang
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引用次数: 0

Abstract

Seaweed biomass in Korea is rich in galactose following hydrolysis, and leveraging this resource for enhancing the biohydrogen production is the aim of this study. The study investigates the biohydrogen production potential of a newly isolated pure strain, Clostridium sp. JH03, utilizing galactose and seaweed biomass as renewable feedstocks. The strain could utilize galactose as the sole carbon source for biohydrogen production, with a maximum hydrogen yield of 1.61 mol H2/mol galactose. The parameters included pH, temperature, and initial galactose concentration, which were varied to determine the optimal conditions for maximum biohydrogen production. The optimal conditions for biohydrogen production were pH 9 and a temperature of 25 °C, with an initial galactose concentration of 10 g/L. Moreover, hydrogen production from seaweed hydrolysate by Clostridium sp. JH03 resulted in maximum production of 1.71 mol H2/mol galactose. The study also investigated that combining sludge, a common practice in dark fermentation, with JH03 increased biohydrogen production by up to 34%. By addressing the need for clean energy and reducing raw materials price using biomass, this study contributes to the advancement of sustainable and cost-compatible energy solutions.

Abstract Image

厌氧消化污泥中的新型梭状芽孢杆菌 JH03 利用海藻生物质生产基于半乳糖的生物氢
韩国的海藻生物质在水解后富含半乳糖,本研究旨在利用这一资源提高生物制氢能力。本研究调查了新分离的纯菌株梭状芽孢杆菌 JH03 利用半乳糖和海藻生物质作为可再生原料生产生物氢的潜力。该菌株可利用半乳糖作为生物制氢的唯一碳源,最大产氢量为 1.61 mol H2/mol半乳糖。参数包括 pH 值、温度和初始半乳糖浓度,通过改变这些参数来确定最大生物产氢量的最佳条件。生物制氢的最佳条件是 pH 值为 9,温度为 25 °C,初始半乳糖浓度为 10 克/升。此外,梭状芽孢杆菌 JH03 从海藻水解物中制氢的最大产量为 1.71 mol H2/mol半乳糖。研究还发现,将暗发酵中常见的污泥与 JH03 结合使用,可使生物制氢量提高 34%。通过利用生物质满足清洁能源的需求和降低原材料价格,该研究为推动可持续和成本兼容的能源解决方案做出了贡献。
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来源期刊
Biotechnology and Bioprocess Engineering
Biotechnology and Bioprocess Engineering 工程技术-生物工程与应用微生物
CiteScore
5.00
自引率
12.50%
发文量
79
审稿时长
3 months
期刊介绍: Biotechnology and Bioprocess Engineering is an international bimonthly journal published by the Korean Society for Biotechnology and Bioengineering. BBE is devoted to the advancement in science and technology in the wide area of biotechnology, bioengineering, and (bio)medical engineering. This includes but is not limited to applied molecular and cell biology, engineered biocatalysis and biotransformation, metabolic engineering and systems biology, bioseparation and bioprocess engineering, cell culture technology, environmental and food biotechnology, pharmaceutics and biopharmaceutics, biomaterials engineering, nanobiotechnology, and biosensor and bioelectronics.
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