PMID- 35974282 OWN - NLM STAT- MEDLINE DCOM- 20230206 LR - 20230206 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 30 IP - 2 DP - 2023 Jan TI - Whole cell of pure Clostridium butyricum CBT-1 from anaerobic bioreactor effectively hydrolyzes agro-food waste into biohydrogen. PG - 4853-4865 LID - 10.1007/s11356-022-22443-9 [doi] AB - Recycling organic waste and converting them into renewable energy are a promising route for environment protection and effective biochemical reactions suitable for industrial hydrogen synthesis. This study targeted to isolate a pure anaerobic culture with potential to hydrolyze different biomass and production of biohydrogen. For this, a sample of full-scale anaerobic digester, fed with a multicomponent solid, was inoculated on Reinforced Clostridial Medium (RCM) in strict anaerobic conditions. An anaerobic Clostridium butyricum CBT-1 strain was isolated, identified from morphological and 16S rRNA sequence. The CBT-1 culture expressed amylase, cellulase and peroxidases activities. The strain exhibited visual decolorization of both Azure B and crystal violet dyes. In batch fermentation experiment, the CBT-1 produced highest of 3.06, 2.67 and 2.46 mol/mol H(2) yield from glucose, starch and cellulose respectively, whereas, the CBT-1 showed low 0.43 mol H(2)/mol of substrate from untreated rice straw due to lignin in compact structure and comparatively high H(2) yield of 1.91 and 2.01 mol H(2)/mol of substrate rice straw hydrolysate and kitchen food waste (KFWS) respectively. The cumulative volumetric yield of H(2) was 358.15, 300.8 and 294.5NmL/gSub from glucose, starch and cellulose respectively. Similarly, the cumulative H(2) volume was 76.7, 184.4, 237.2 NmL/gVS from untreated rice straw, rice straw hydrolysate and kitchen food waste. This study emphasizes the prospects to find similar robust anaerobic culture for hydrolyzing complex biomass. Such strains could be used as standard co-inoculum for biohydrogen obtaining and as the biocatalyst for commercial scale applications. CI - (c) 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Shah, Tawaf Ali AU - Shah TA AUID- ORCID: 0000-0002-5030-4729 AD - Department of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, China. tawafbiotech@yahoo.com. FAU - Zhihe, Li AU - Zhihe L AD - Department of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, China. FAU - Zhiyu, Li AU - Zhiyu L AD - Department of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, China. FAU - Zhang, Andong AU - Zhang A AD - Department of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, China. FAU - Lu, Di AU - Lu D AD - Department of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, China. FAU - Fang, Wang AU - Fang W AD - Department of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, China. FAU - Xuan, Han AU - Xuan H AD - Department of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, China. LA - eng PT - Journal Article DEP - 20220817 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (RNA, Ribosomal, 16S) RN - 9004-34-6 (Cellulose) RN - 9005-25-8 (Starch) RN - 7YNJ3PO35Z (Hydrogen) SB - IM MH - *Clostridium butyricum/genetics/metabolism MH - Anaerobiosis MH - Food MH - RNA, Ribosomal, 16S/genetics MH - *Refuse Disposal MH - Bioreactors MH - Fermentation MH - Cellulose MH - Starch MH - Hydrogen OTO - NOTNLM OT - Bioenergy OT - Culture OT - Fermentation OT - Renewable OT - Volume OT - Waste degradation EDAT- 2022/08/17 06:00 MHDA- 2023/02/07 06:00 CRDT- 2022/08/16 23:35 PHST- 2022/03/02 00:00 [received] PHST- 2022/08/04 00:00 [accepted] PHST- 2022/08/17 06:00 [pubmed] PHST- 2023/02/07 06:00 [medline] PHST- 2022/08/16 23:35 [entrez] AID - 10.1007/s11356-022-22443-9 [pii] AID - 10.1007/s11356-022-22443-9 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2023 Jan;30(2):4853-4865. doi: 10.1007/s11356-022-22443-9. Epub 2022 Aug 17.