A comprehensive review on bioactive compounds, health benefits, and potential food applications of onion (Allium cepa L.) skin waste
By-products of agricultural waste are now utilized in the food industry rather than being thrown away. Onion is a spicy vegetable that is an everyday ingredient in most residential kitchens for its unique flavor and is used extensively over the world for therapeutic purposes. Onions produce a lot of...
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Veröffentlicht in: | Trends in food science & technology 2023-11, Vol.141, p.104173, Article 104173 |
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Sprache: | eng |
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Zusammenfassung: | By-products of agricultural waste are now utilized in the food industry rather than being thrown away. Onion is a spicy vegetable that is an everyday ingredient in most residential kitchens for its unique flavor and is used extensively over the world for therapeutic purposes. Onions produce a lot of waste due to their widespread production and use around the world, which has inspired new studies with potential approaches for reusing these by-products.
This review aims to draw attention to the significant advances made in the identification of onion by-products as valuable sources of bioactive compounds, the techniques used to extract these bioactives, the potential health benefits of onion by-products, and the exploration of their potential diverse applications in a circular bioeconomy perspective.
This paper contains information regarding the phytochemical composition, extraction methods, therapeutic properties, food and industrial applications of onion by-products. The current study has shown that onion waste is a rich source of nutrients and phytochemicals with bioactive properties that are beneficial to human health. The skins of onions are a valuable source of bioactives like flavonoids, phenolic acids, fructooligosaccharides, organosulfur compounds, and phenolic glycosides. Numerous health advantages of these compounds, including antioxidant, anti-inflammatory, anti-diabetic, anti-microbial, and anti-cancer capabilities, have been demonstrated. This review can be used as a starting point to investigate potential applications for bioactives onion skins in the functional food industry. It also suggests that further study may help to maximize the use of this resource.
•Onion by-products are found to be a rich source of bioactive compounds like flavonoids, phenolic compounds, and quercetin.•Benefits of bioactives from onion by-products are antioxidant, anti-inflammatory, antimicrobial, and anticancer properties.•Potential applications of onion by-products in the food industry, contribute to the development of value-added foods.•An outlook on the reuse, extraction, and incorporation of onions bioactive compounds into various food products is discussed. |
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ISSN: | 0924-2244 1879-3053 |
DOI: | 10.1016/j.tifs.2023.104173 |