Trends in food waste valorization for the production of chemicals, materials and fuels: Case study South and Southeast Asia

[Display omitted] •Huge amounts of food waste (FW) are generated in Asia.•Latest trends in FW valorization in selected Asian countries are discussed.•FW bioconversions for India, Thailand, Indonesia, Malaysia & Singapore are presented.•Existing legislation for FW disposal in these countries is reviewed. Staggering amounts of food waste are being generated in Asia by means of agricultural processing, food transportation and storage, and human food consumption activities. This along with the recent sustainable development goals of food security, environmental protection, and energy efficiency are the key drivers for food waste valorization. The aim of this review is to provide an insight on the latest trends in food waste valorization in Asian countries such as India, Thailand, Singapore, Malaysia and Indonesia. Landfilling, incineration, and composting are the first-generation food waste processing technologies. The advancement of valorisation alternatives to tackle the food waste issue is the focus of this review. Furthermore, a series of examples of key food waste valorization schemes in this Asian region as case studies to demonstrate the advancement in bioconversions in these countries are described. Finally, important legislation aspects for food waste disposal in these Asian countries are also reported.