Staff View: Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production

Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production

Lactic acid fermentation (LAF) has recently been considered a promising strategy to store food waste (FW) prior to dark fermentation (DF), as it can stabilize organic matter with no negative impact on biohydrogen potential (BHP). However, concentrations can affect LAF and its subsequent impact on BH...

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Main Authors:	Roslan E., Mohamed H., Abu Hassan S.H., Carrere H., Trably E.
Other Authors:	59247663400
Format:	Article
Published:	Elsevier Ltd 2025
Subjects:	Bio-energy Bio-hydrogen Bio-hydrogen production Dark fermentation Food waste Food waste storage Lactic acid fermentation Organics Total solids Waste storage Lactic acid
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spelling	my.uniten.dspace-361812025-03-03T15:41:31Z Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production Roslan E. Mohamed H. Abu Hassan S.H. Carrere H. Trably E. 59247663400 58253940500 57222529972 7003438084 6506445171 Bio-energy Bio-hydrogen Bio-hydrogen production Dark fermentation Food waste Food waste storage Lactic acid fermentation Organics Total solids Waste storage Lactic acid Lactic acid fermentation (LAF) has recently been considered a promising strategy to store food waste (FW) prior to dark fermentation (DF), as it can stabilize organic matter with no negative impact on biohydrogen potential (BHP). However, concentrations can affect LAF and its subsequent impact on BHP is not known. This novel study evaluates the impact of storing FW by LAF at 1%, 5%, 10%, 15% and 20% total solids (TS), at 35 �C and 23 �C, subsequently converted to biohydrogen through DF. Storing FW in LAF at 5%, 10%, 15% and 20% TS has no impact on its BHP (88 � 23 mL/gVS). Storing at 1% TS increases variability of metabolic pathways, with replicates undergoing butyric fermentation instead of LAF, resulting in 33 mL/gVS and 13 mL/gVS of BHP, compared to the total average of all conditions at 84 � 25 mL/gVS. Microbial analysis shows Lactobacillus sp. and Weissella sp. as the main genera selected during storage. The concentrations affect the relative abundance of various remaining genera, such as Burkholderia-Paraburkholderia sp. at 20% TS and Lactococcus sp. at 1% TS. Except at low TS, LAF is a robust storage strategy of FW prior to DF, preserving its BHP without the need for conventional refrigeration. ? 2024 Hydrogen Energy Publications LLC Final 2025-03-03T07:41:31Z 2025-03-03T07:41:31Z 2024 Article 10.1016/j.ijhydene.2024.09.134 2-s2.0-85204310887 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85204310887&doi=10.1016%2fj.ijhydene.2024.09.134&partnerID=40&md5=0913371ac6dc41f19016214bc2065c29 https://irepository.uniten.edu.my/handle/123456789/36181 88 358 368 Elsevier Ltd Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
topic	Bio-energy Bio-hydrogen Bio-hydrogen production Dark fermentation Food waste Food waste storage Lactic acid fermentation Organics Total solids Waste storage Lactic acid
spellingShingle	Bio-energy Bio-hydrogen Bio-hydrogen production Dark fermentation Food waste Food waste storage Lactic acid fermentation Organics Total solids Waste storage Lactic acid Roslan E. Mohamed H. Abu Hassan S.H. Carrere H. Trably E. Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production
description	Lactic acid fermentation (LAF) has recently been considered a promising strategy to store food waste (FW) prior to dark fermentation (DF), as it can stabilize organic matter with no negative impact on biohydrogen potential (BHP). However, concentrations can affect LAF and its subsequent impact on BHP is not known. This novel study evaluates the impact of storing FW by LAF at 1%, 5%, 10%, 15% and 20% total solids (TS), at 35 �C and 23 �C, subsequently converted to biohydrogen through DF. Storing FW in LAF at 5%, 10%, 15% and 20% TS has no impact on its BHP (88 � 23 mL/gVS). Storing at 1% TS increases variability of metabolic pathways, with replicates undergoing butyric fermentation instead of LAF, resulting in 33 mL/gVS and 13 mL/gVS of BHP, compared to the total average of all conditions at 84 � 25 mL/gVS. Microbial analysis shows Lactobacillus sp. and Weissella sp. as the main genera selected during storage. The concentrations affect the relative abundance of various remaining genera, such as Burkholderia-Paraburkholderia sp. at 20% TS and Lactococcus sp. at 1% TS. Except at low TS, LAF is a robust storage strategy of FW prior to DF, preserving its BHP without the need for conventional refrigeration. ? 2024 Hydrogen Energy Publications LLC
author2	59247663400
author_facet	59247663400 Roslan E. Mohamed H. Abu Hassan S.H. Carrere H. Trably E.
format	Article
author	Roslan E. Mohamed H. Abu Hassan S.H. Carrere H. Trably E.
author_sort	Roslan E.
title	Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production
title_short	Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production
title_full	Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production
title_fullStr	Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production
title_full_unstemmed	Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production
title_sort	coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production
publisher	Elsevier Ltd
publishDate	2025
_version_	1825816165765611520
score	13.244109

Coupling lactic acid fermentation of food waste at various concentrations as storage strategy with dark fermentation for biohydrogen production

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