Bio-degradation of oily food waste employing thermophilic bacterial strains. (January 2018)

• Record Type: Journal Article
• Authors: Awasthi, Mukesh Kumar; Selvam, Ammaiyappan; Chan, Man Ting; Wong, Jonathan W.C.
• Is Part Of: Bioresource technology. Volume 248:Part A(2018)
• Page Start: 141
• Page End: 147
• Publication Date: 2018-01
• Subjects: Oil reduction -- Biodegradation -- Oily food wastes -- Bacterial consortium -- Incubation; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2017.06.115
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Novel thermophilic oil degrading bacterial strains was isolated from oil spelled area soil. Enhancement on degradation ability of vegetable oil by the thermophilic bacterial strain. Optimization of suitable environmental condition for oil degradation. The strains were characterized for oil reduction under thermophilic condition. Maximum 65.12% oil reduction showed by thermophilic bacterial consortium. Abstract: The objective of this work was to isolate a novel thermophilic bacterial strain and develop a bacterial consortium (BC) for efficient degradation oily food waste. Four treatments were designed: 1:1 mixture of pre-consumption food wastes (PrCFWs) and post-consumption food wastes (PCFWs) (T-1), 1:2 mixture of PrCFWs and PCFWs mixture (T-2), PrCFWs (T-3) and PCFWs (T-4). Equal quantity of BC was inoculated into each treatment to compare the oil degradation efficiency. Results showed that after 15 days of incubation, a maximum oil reduction of 65.12 ± 0.08% was observed in treatment T-4, followed by T-2 (55.44 ± 0.12%), T-3 (54.79 ± 0.04%) and T-1 (52.52 ± 0.02%), while oil reduction was negligible in control. Results indicate that the development of oil utilizing thermophilic BC was more cost-effective in solving the degradation of oily food wastes and conversion into a stable end product.