Enhancing the hydrolysis and methane production potential of mixed food waste by an effective enzymatic pretreatment
Article
Article Title | Enhancing the hydrolysis and methane production potential of mixed food waste by an effective enzymatic pretreatment |
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ERA Journal ID | 3454 |
Article Category | Article |
Authors | Kiran, Esra Uckun (Author), Trzcinski, Antoine P. (Author) and Liu, Yu (Author) |
Journal Title | Bioresource Technology |
Journal Citation | 183, pp. 47-52 |
Number of Pages | 6 |
Year | 2015 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0960-8524 |
1873-2976 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.biortech.2015.02.033 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0960852415002023 |
Abstract | In this study, a fungal mash rich in hydrolytic enzymes was produced by solid state fermentation (SSF) of waste cake in a simple and efficient manner and was further applied for high-efficiency hydrolysis of mixed food wastes (FW). The enzymatic pretreatment of FW with this fungal mash resulted in 89.1 g/L glucose, 2.4 g/L free amino nitrogen, 165 g/L soluble chemical oxygen demand (SCOD) and 64% reduction in volatile solids within 24 h. The biomethane yield and production rate from FW pretreated with the fungal mash were found to be respectively about 2.3 and 3.5-times higher than without pretreatment. After anaerobic digestion of pretreated FW, a volatile solids removal of 80.4 ± 3.5% was achieved. The pretreatment of mixed FW with the fungal mash produced in this study is a promising option for enhancing anaerobic digestion of FW in terms of energy recovery and volume reduction. |
Keywords | food waste; fungal mash; enzymatic pretreatment; solid state fermentation; anaerobic digestion |
ANZSRC Field of Research 2020 | 410404. Environmental management |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Nanyang Technological University, Singapore |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q34qy/enhancing-the-hydrolysis-and-methane-production-potential-of-mixed-food-waste-by-an-effective-enzymatic-pretreatment
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