In dark fermentation of food waste, changes in microbial community composition and dynamics were studied, after inoculum pre-treatment with waste frying oil (WFO). The microbial diversity in the raw sludge was the highest, considering that all genera with abundances higher than 0.1% contributed to only 37.42% of the total diversity. After inoculum pre-treatment with WFO, many genera were inhibited; however, no effect was observed on spore-forming fermentative bacteria. In addition, none-spore-forming H2 producers were enriched significantly after inoculum pre-treatment, while spore-forming H2 producing bacteria (e.g. Clostridium spp.) remained almost unchanged. The predominant OTUs after dark fermentation were Clostridium sp. (27.24%), Aeromonas sp. (13.43%) and Chromobacterium sp. (12.00%).

Study of microbial dynamics during optimization of hydrogen production from food waste by using LCFA-rich agent / R. Rafieenia, A. Pivato, S. Campanaro, L. Treu, A. Schievano, M.C. Lavagnolo. - In: BIORESOURCE TECHNOLOGY REPORTS. - ISSN 2589-014X. - 5:(2019 Feb), pp. 157-163. [10.1016/j.biteb.2019.01.011]

Study of microbial dynamics during optimization of hydrogen production from food waste by using LCFA-rich agent

A. Schievano;
2019-02

Abstract

In dark fermentation of food waste, changes in microbial community composition and dynamics were studied, after inoculum pre-treatment with waste frying oil (WFO). The microbial diversity in the raw sludge was the highest, considering that all genera with abundances higher than 0.1% contributed to only 37.42% of the total diversity. After inoculum pre-treatment with WFO, many genera were inhibited; however, no effect was observed on spore-forming fermentative bacteria. In addition, none-spore-forming H2 producers were enriched significantly after inoculum pre-treatment, while spore-forming H2 producing bacteria (e.g. Clostridium spp.) remained almost unchanged. The predominant OTUs after dark fermentation were Clostridium sp. (27.24%), Aeromonas sp. (13.43%) and Chromobacterium sp. (12.00%).
Inoculum pre-treatment; Hydrogen production; Waste frying oil; Microbial Community
Settore ICAR/03 - Ingegneria Sanitaria-Ambientale
Settore AGR/13 - Chimica Agraria
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/641512
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