文献类型： 外文期刊

作者： Liang, Jinsong ¹ ; Fang, Wei ¹ ; Chang, Jianning ¹ ; Zhang, Guangming ³ ; Ma, Weifang ¹ ; Nabi, Mohammad ⁴ ; Zubair, Muhammad ⁵ ; Zhang, Ru ¹ ; Chen, Le ¹ ; Huang, Jianghao ¹ ; Zhang, Panyue ¹ ;

作者机构： 1.Beijing Forestry Univ, Coll Environm Sci & Engn, Beijing Key Lab Source Control Technol Water Pollu, Beijing 100083, Peoples R China

2.Beijing Forestry Univ, Coll Environm Sci & Engn, Engn Res Ctr Water Pollut Source Control & Ecoreme, Beijing 100083, Peoples R China

3.Hebei Univ Technol, Sch Energy & Environm Engn, Tianjin 300130, Peoples R China

4.Beijing Univ Civil Engn & Architecture, Sch Environm & Energy Engn, Beijing 100044, Peoples R China

5.Shandong Acad Agr Sci, Inst Anim Sci & Vet Med, Jinan 250100, Peoples R China

6.Beijing Forestry Univ, Coll Environm Sci & Engn, Beijing, Peoples R China

关键词： Volatile fatty acids; Long-term fermentation; Hydrolysis; Acidogenesis; Rumen microorganisms

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：11.889； 五年影响因子：11.139 ）

ISSN： 0960-8524

年卷期： 2022 年 358 卷

页码：

收录情况： SCI

摘要： Rumen microorganisms have the ability to efficiently hydrolyze and acidify lignocellulosic biomass. The effectiveness of long-term rumen microorganism fermentation of lignocellulose in vitro for producing volatile fatty acids (VFAs) is unclear. The feasibility of long-term rumen microorganism fermentation of lignocelluose was evaluated in this study, and a stable VFA production was successfully realized for 120 d. Results showed that VFA concentration reached to 5.32-8.48 g/L during long-term fermentation. Hydrolysis efficiency of hemicellulose and cellulose reached 36.5%-52.2% and 29.4%-38.4%, respectively. A stable bacterial community was mainly composed of Prevotella, Rikenellaceae_RC9_gut_group, Ruminococcus, and Succiniclasticum. VFA accumulation led to a pH decrease, which caused the change of bacterial community structure. Functional prediction showed that the functional genes related to hydrolysis and acidogenesis of corn stover were highly expressed during long-term fermentation. The successful long-term rumen fermentation to produce VFAs is of great significance for the practical application of rumen microorganisms.