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Review
. 2022 Oct:362:127870.
doi: 10.1016/j.biortech.2022.127870. Epub 2022 Aug 29.

Onion waste based-biorefinery for sustainable generation of value-added products

Affiliations
Review

Onion waste based-biorefinery for sustainable generation of value-added products

Narashans Alok Sagar et al. Bioresour Technol. 2022 Oct.

Abstract

Waste derived from the onion processing sector can be harnessed for the production of organic acids, polyphenols, polysachharides, biofuels and pigments. To sustainably utilize onion processing residues, different biorefinery strategies such as enzymatic hydrolysis, fermentation and hydrothermal carbonization have been widely investigated. This review discusses the recent advances in the biorefinery approaches used for valorization of onion processing waste followed by the production of different value-added products from diverse classes of onion waste. The review also highlights the current challenges faced by the bioprocessing sector for the utilization of onion processing waste and perspectives to tackle them.

Keywords: Bioactives; Biofuel; Biorefinery; Onion waste; Organic acids.

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Conflict of interest statement

Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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