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Green Technologies for Persimmon By-Products Revalorisation as Sustainable Sources of Dietary Fibre and Antioxidants for Functional Beverages Development

The use of green technologies such as ultrasound and natural deep eutectic solvents (NADES) for revalorisation of food and agricultural by-products represents a sustainable way to tackle waste and promote a healthier environment while delivering much-needed functional food ingredients for an increas...

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Main Authors: Julio Salazar-Bermeo (Author), Bryan Moreno-Chamba (Author), Rosa Heredia-Hortigüela (Author), Victoria Lizama (Author), María Concepción Martínez-Madrid (Author), Domingo Saura (Author), Manuel Valero (Author), Madalina Neacsu (Author), Nuria Martí (Author)
Format: Book
Published: MDPI AG, 2023-05-01T00:00:00Z.
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Summary:The use of green technologies such as ultrasound and natural deep eutectic solvents (NADES) for revalorisation of food and agricultural by-products represents a sustainable way to tackle waste and promote a healthier environment while delivering much-needed functional food ingredients for an increasingly unhealthy population. The processing of persimmon (<i>Diospyros kaki</i> Thunb.) generates large amounts of by-products rich in fibre-bound bioactive phytochemicals. This paper assessed the extractability of bioactive compounds through NADES and the functional properties of the persimmon polysaccharide-rich by-products to evaluate their suitability to be used as functional ingredients in commercial beverages. Although higher amounts of carotenoids and polyphenols were extracted after eutectic treatment vs. conventional extraction (<i>p</i> < 0.05), the fibre-bound bioactives remained abundant (<i>p</i> < 0.001) in the resulting persimmon pulp by-product (PPBP) and persimmon pulp dietary fibre (PPDF), showing also a strong antioxidant activity (DPPH<sup>•</sup>, ABTS<sup>•+</sup> assays) and an improved digestibility and fibre fermentability. The main structural components of PPBP and PPDF are cellulose, hemicellulose and pectin. PPDF-added dairy-based drink showed more than 50% of preference over the control among panellists and similar acceptability scores to the commercial ones. Persimmon pulp by-products represent sustainable source of dietary fibre and bioactives and are suitable candidates to develop functional ingredients for food industry applications.
Item Description:10.3390/antiox12051085
2076-3921

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