Production of bioethanol from food waste: Status and perspectives

Anusuiya Singh; Reeta Rani Singhania; Shveta Soam; Chiu-Wen Chen; Dibyajyoti Haldar; Sunita Varjani; Jo-Shu Chang; Cheng-Di Dong; Anil Kumar Patel

doi:10.1016/j.biortech.2022.127651

Production of bioethanol from food waste: Status and perspectives

Bioresour Technol. 2022 Sep:360:127651. doi: 10.1016/j.biortech.2022.127651. Epub 2022 Jul 20.

Authors

Anusuiya Singh¹, Reeta Rani Singhania², Shveta Soam³, Chiu-Wen Chen⁴, Dibyajyoti Haldar⁵, Sunita Varjani⁶, Jo-Shu Chang⁷, Cheng-Di Dong⁸, Anil Kumar Patel²

Affiliations

¹ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan.
² Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, India.
³ Department of Building Engineering, Energy Systems and Sustainability Science, University of Gävle, Kungsbäcksvägen 47, 80176 Gävle, Sweden.
⁴ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
⁵ Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore 641114, India.
⁶ Gujarat Pollution Control Board, Gandhinagar, Gujarat 382010, India.
⁷ Department of Chemical and Materials Engineering, Tunghai University, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Taiwan.
⁸ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan. Electronic address: cddong@nkust.edu.tw.

PMID: 35870673
DOI: 10.1016/j.biortech.2022.127651

Abstract

There is an immediate global requirement for an ingenious strategy for food waste conversion to biofuels in order to replace fossil fuels with renewable resources. Food waste conversion to bioethanol could lead to a sustainable process having the dual advantage of resolving the issue of food waste disposal as well as meeting the energy requirements of the increasing population. Food waste is increasing at the rate of 1.3 billion tonnes per year, considered to be one-third of global food production. According to LCA studies discarding these wastes is detritus to the environment, therefore; it is beneficial to convert the food waste into bioethanol. The CO₂ emission in this process offers zero impact on the environment as it is biogenic. Among several pretreatment strategies, hydrothermal pretreatment could be a better approach for pretreating food waste because it solubilizes organic solids, resulting in an increased recovery of fermentable sugars to produce bioenergy.

Keywords: Bioethanol; Biomass saccharification; Consolidated bioprocessing; Hydrothermal pretreatment; LCA.

Publication types

Review

MeSH terms

Biofuels
Biomass
Fermentation
Food
Refuse Disposal* / methods
Sugars

Substances

Biofuels
Sugars