Changes in volatile fatty acid production and microbiome during fermentation of food waste from hospitality sector

Autor:	S. Rasi, M. Vainio, L. Blasco, M. Kahala, H. Leskinen, E. Tampio
Rok vydání:	2021
Předmět:	Environmental Engineering Sewage Microbiota General Medicine Management Monitoring Policy and Law Hydrogen-Ion Concentration Fatty Acids Volatile Refuse Disposal Bioreactors Food RNA Ribosomal 16S Fermentation Anaerobiosis Waste Management and Disposal
Zdroj:	Journal of environmental management. 308
ISSN:	1095-8630
Popis:	Due to the increasing demand for low carbon-footprint bioproducts in the markets, innovative processes technologies and products are needed. The objective of this study was to assess the quality and potential of food waste (FW) from the hospitality sector to produce volatile fatty acids (VFAs). A batch type acid fermentation system was used to study VFA production in different process conditions (a decreased pH and increased organic loading rate). The evolution of VFAs and long-chain fatty acids was followed. Amplicon sequencing of the 16S rRNA gene was used to investigate the bacterial and archaeal community, and elucidate microbial communities in different FW and process conditions. The results show that high VFA concentrations (of up to 18 g/L) were achieved in overloaded conditions, which were also affected by the activity and composition of the inoculum. FW played an important role in modulating microbial composition, especially the bacterial communities belonging to the lactic acid bacteria group.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8302aaa5e163b36aa3f687eba2d708cd https://pubmed.ncbi.nlm.nih.gov/35124316 Zobrazit plný text záznamu Full Text from ScienceDirect