Hydrothermal treatment of avocado peel waste for the simultaneous recovery of oligosaccharides and antioxidant phenolics
| Autor: | Pablo G. del Río, Beatriz Rodríguez-Martínez, Gil Garrote, Gemma Eibes, Beatriz Gullón, Alexandra Del Castillo-Llamosas |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
Antioxidant medicine.medical_treatment Metabolite Ethyl acetate Oligosaccharides Bioengineering Antioxidants chemistry.chemical_compound Phenols medicine Humans Food science Gallic acid Waste Management and Disposal Flavonoids 2403 Bioquímica 2304.19 Polisacáridos Renewable Energy Sustainability and the Environment Persea food and beverages Hydrothermal treatment General Medicine Biorefinery chemistry Polyphenol Trolox 3303.03 Procesos Químicos |
| Zdroj: | Investigo. Repositorio Institucional de la Universidade de Vigo Universidade de Vigo (UVigo) |
| Popis: | Avocado industrial processing generates huge quantities of residues that are currently wasted without any valuable commercial application. This work deals with autohydrolysis of Avocado peel (AP) for the concomitant recovery of oligosaccharides and polyphenolics. Temperature of 150 °C allowed the highest recovery of oligosaccharides (14.3 g oligosaccharides/100 g AP) and high recovery of antioxidant phenolics (3.48 g gallic acid equivalents/100 g AP and 10.80 g Trolox equivalents/100 g AP measured with ABTS●+ assay). The liquor obtained at this temperature was characterized by TGA and FTIR to study its thermal stability and functional groups. UHPLC-TOF MS analysis of an ethyl acetate extract of AP liquor enabled the tentative identification of 43 compounds, belonging to various metabolite families, including flavonoids, phenolic acids, organic acids, lignans and fatty acids. These findings demonstrated that autohydrolysis of AP is a suitable technology to obtain bioactive agents with potential uses in food and cosmetic industries. Financiado para publicación en acceso aberto: Universidade de Vigo/CISUG Xunta de Galicia | Ref. ED431C 2017/62 Xunta de Galicia | Ref. ED431F 2020/03 Ministerio de Ciencia, Innovación y Universidades | Ref. RYC2018-024846-I Ministerio de Ciencia, Innovación y Universidades | Ref. RYC2018-026177-I |
| Databáze: | OpenAIRE |
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