Sustainable enzymatic technologies in waste animal fat and protein management

Waste animal fats and proteins (WAFP) are rich in various animal by-products from food industries. On one hand, increasing production of huge amounts of WAFP brings a great challenge to their appropriate disposal, and raises severe risks to environment and life health. On the other hand, the high fa...

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Bibliographic Details
Published in:Journal of environmental management 2021-04, Vol.284, p.112040, Article 112040
Main Authors: Cheng, Dongle, Liu, Yi, Ngo, Huu Hao, Guo, Wenshan, Chang, Soon Woong, Nguyen, Dinh Duc, Zhang, Shicheng, Luo, Gang, Bui, Xuan Thanh
Format: Article
Language:English
Subjects:
Animals
Bioactivate hydrolysates
Bioconversion
Biodiesel
Biofuels
Biotechnology
Enzyme production
Fats
Food Industry
Industrial Waste
Waste animal fat and protein
Waste Management
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Summary:Waste animal fats and proteins (WAFP) are rich in various animal by-products from food industries. On one hand, increasing production of huge amounts of WAFP brings a great challenge to their appropriate disposal, and raises severe risks to environment and life health. On the other hand, the high fat and protein contents in these animal wastes are valuable resources which can be reutilized in an eco-friendly and renewable way. Sustainable enzymatic technologies are promising methods for WAFP management. This review discussed the application of various enzymes in the conversion of WSFP to value-added biodiesel and bioactivate hydrolysates. New biotechnologies to discover novel enzymes with robust properties were proposed as well. This paper also presented the bio-utilization strategy of animal fat and protein wastes as alternative nutrient media for microorganism growth activities to yield important industrial enzymes cost-effectively. [Display omitted] •Enzymatic hydrolysis of animal wastes is a greener and more energy saving method.•Catalyzed by lipase, the animal fat wastes could be transformed into biodiesel.•Enzymatic hydrolysis of animal protein wastes generates highly value-added products.•Nutrient's bio-utilization of AWFP can reduce industrial enzyme production costs.
ISSN:0301-4797
1095-8630
DOI:10.1016/j.jenvman.2021.112040