利用不同预处理培养物从马铃薯皮废弃物中发酵生产生物氢。
Potato peel waste for fermentative biohydrogen production using different pretreated culture.
机构信息
State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271018, China.
出版信息
Bioresour Technol. 2022 Oct;362:127866. doi: 10.1016/j.biortech.2022.127866. Epub 2022 Aug 29.
How to manage potato peel waste sustainably has been an issue faced by the potato industry. This work explored the feasibility of potato peel waste for biohydrogen production via dark fermentation, and investigated the effects of various inoculum enrichment methods (acid, aeration, heat-shock and base) on the process efficiency. It was observed that the hydrogen production showed a great variation when using various inoculum enrichment methods, and the aeration enriched inoculum obtained the maximum hydrogen yield of 71.0 mL/g-VS and VS removal of 28.9 %. Different enriched cultures also exhibited huge variations in the bacterial community structure and metabolic pathway. The highest abundance of Clostridium sensu stricto fundamentally contributed to the highest process efficiency for the fermenter inoculated with aeration treated culture. This work puts forward a promising strategy for recycling potato peel waste, and fills a gap in the optimal inoculum preparation method for biohydrogen fermentation of potato peel waste.
如何可持续地管理土豆皮废物一直是土豆产业面临的问题。这项工作探讨了通过暗发酵将土豆皮废物用于生物制氢的可行性，并研究了各种接种物富集方法（酸、曝气、热冲击和碱）对工艺效率的影响。结果表明，使用不同的接种物富集方法，氢气的产量有很大的差异，曝气富集的接种物获得了最大的氢气产量 71.0 mL/g-VS 和 28.9%的 VS 去除率。不同的富集培养物在细菌群落结构和代谢途径上也有很大的差异。严格意义上的梭菌属（Clostridium sensu stricto）的丰度最高，这从根本上为接种了曝气处理培养物的发酵罐提供了最高的工艺效率。这项工作为土豆皮废物的回收提供了一种有前途的策略，并填补了优化土豆皮废物生物制氢接种物制备方法的空白。
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