The impact of Fe2+ and Na+ concentrations on hydrogen production with three different fermenter bacteria

IF 1.3 4区 农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD
Guoxiang Zheng, Siyu Wang, N’Dri Yves Bohoussou
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引用次数: 0

Abstract

Batch experiments were conducted to investigate the effects of Fe2+ and Na+ on the hydrogen (H2) production performance from three different metabolic type hydrogen-producing bacterial strains. The appropriate amount of Fe2+ significantly promoted the H2 production of all three hydrogen-producing bacteria. The combination of H2 production and liquid products showed that Fe2+ was more suitable for the H2 production and metabolism of E. harbinense ZGX4. When the Fe2+ concentration was 0.05 g/L, the H2 production and liquid products concentrations were 2170 mL/L-medium and 6530 mg/L, respectively. Na+ enhanced the H2 production of E. harbinense ZGX4 and C. butyricum 1.209 but inhibited the H2 production of E. cloacae 1.2022. Na+ made C. butyricum 1.209 exhibit the best H2 production and metabolic performance when the Na+ concentration was 2 g/L, while the H2 production, and liquid products concentration were 2460 mL/L-medium and 5350 mg/L, respectively. At the end of the experiment, it was found that the addition of Fe2+ could change the type of fermentation in C. butyricum 1.209. Therefore, further exploration of the effects of other metal ions on model hydrogen-producing strains has great potential for achieving high hydrogen production rates, among other things.
三种不同发酵菌的 Fe2+ 和 Na+ 浓度对制氢的影响
批量实验研究了 Fe2+ 和 Na+ 对三种不同代谢类型产氢细菌菌株产氢(H2)性能的影响。适量的 Fe2+ 能显著促进三种产氢菌的 H2 产量。产氢量和液体产物的综合结果表明,Fe2+更适合于E. harbinense ZGX4的产氢和代谢。当Fe2+浓度为0.05 g/L时,H2产量和液体产物浓度分别为2170 mL/L-中等和6530 mg/L。Na+ 提高了 E. harbinense ZGX4 和 C. butyricum 1.209 的 H2 产量,但抑制了 E. cloacae 1.2022 的 H2 产量。当 Na+ 浓度为 2 g/L 时,Na+ 使丁酸杆菌 1.209 表现出最佳的 H2 产量和代谢性能,而 H2 产量和液体产物浓度分别为 2460 mL/L-medium 和 5350 mg/L。实验最后发现,添加 Fe2+ 可以改变丁酸杆菌 1.209 的发酵类型。因此,进一步探索其他金属离子对模型产氢菌株的影响,在实现高产氢率等方面具有很大的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Bioresources
Bioresources 工程技术-材料科学:纸与木材
CiteScore
2.90
自引率
13.30%
发文量
397
审稿时长
2.3 months
期刊介绍: The purpose of BioResources is to promote scientific discourse and to foster scientific developments related to sustainable manufacture involving lignocellulosic or woody biomass resources, including wood and agricultural residues. BioResources will focus on advances in science and technology. Emphasis will be placed on bioproducts, bioenergy, papermaking technology, wood products, new manufacturing materials, composite structures, and chemicals derived from lignocellulosic biomass.
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