文献类型：期刊文献

英文题名：Boosting volatile fatty acids (VFAs) production during anaerobic digestion of rich lignocellulose pulp mill excess sludge by inoculating rumen fluid and the study on the microbial community structures and functions

作者：Yu, Fangrui[1] Li, Na[1] Li, Hongbin[2] Zhang, Yuying[1] Chen, Lianmei[1] Wang, Bing[1] Sheng, Xueru[1] Zhang, Jian[1] Ping, Qingwei[1] Xiao, Huining[3]

第一作者：Yu, Fangrui

通信作者：Li, N[1];Li, HB[2]

机构：[1]Dalian Polytech Univ, Liaoning Prov Key Lab Pulp & Papermaking Engn, Dalian L16034, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Prov Key Lab Biomass Energy & Mat, Nanjing 210042, Peoples R China;[3]Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B5A3, Canada

年份：2025

卷号：303

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20250617828467);Scopus(收录号：2-s2.0-85216928316);WOS:【SCI-EXPANDED(收录号:WOS:001424515900001)】；

基金：This work was financially supported by the Scientific Research Project of Education Department of Liaoning Province (LJKMZ20220885) , the Foundation (GZKF202225) of State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences.

语种：英文

外文关键词：Lignocellulose; VFAs production; Microbial community succession

摘要：Hydrolysis is the rate-limiting step in the anaerobic digestion of lignocellulose. In the present study, pulp and paper mill sludge (PPMS), a lignocellulose-rich, high-volume waste, which is difficult to be treated by traditional anaerobic digestion, was inoculated with rumen microorganisms for VFAs production. The maximum extent of VFA accumulation was 3839 mg/L after 84 h in the rumen fluid-inoculated digester, versus 2338 mg/L after 96 h in the digester without rumen fluid addition. The amount was 1.64 times higher than that of digester leachate inoculum. During VFAs production, the hydrolysable of lignocellulose and extracellular polymers were promoted by inoculating rumen liquid. High-throughput sequencing results (16S rRNA genes) showed that there was a significant succession of dominant microbial community during in vitro fermentation of PPMS by rumen fluid. Fermentation by rumen fluid is a potentially effective technology to boost VFAs production from a lignocelluloserich biomass.