Environmentally Friendly Hydrothermal Processing of Melon by-Products for the Recovery of Bioactive Pectic-Oligosaccharides
| Autor: | Beatriz Gullón, Remedios Yáñez, Xiana Rico |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
3309.03 Antioxidantes en Los Alimentos Health (social science) food.ingredient Pectin melon by-products Plant Science phenolic compounds Mass spectrometry lcsh:Chemical technology 01 natural sciences Health Professions (miscellaneous) Microbiology Article Matrix (chemical analysis) pectin-derived oligosaccharides hydrothermal treatment 0404 agricultural biotechnology food 010608 biotechnology Desorption antioxidant activities lcsh:TP1-1185 Fourier transform infrared spectroscopy 3309.20 Propiedades de Los Alimentos chemistry.chemical_classification Chromatography Ion exchange 3309.90 Microbiología de Alimentos food and beverages 04 agricultural and veterinary sciences Oligosaccharide 040401 food science Polymerization chemistry oligogalacturonides Food Science |
| Zdroj: | Foods, Vol 9, Iss 1702, p 1702 (2020) Foods Volume 9 Issue 11 Investigo. Repositorio Institucional de la Universidade de Vigo Universidade de Vigo (UVigo) |
| ISSN: | 2304-8158 |
| Popis: | Melon by-products, that currently lack high value-added applications, could be a sustainable source of bioactive compounds such as polysaccharides and antioxidants. In this work, melon peels were extracted with water to remove free sugars, and the water-insoluble solids (WISs) were subjected to hydrothermal processing. The effect of temperature on the composition of the obtained liquors and their total phenolic content was evaluated. The selected liquors were also characterized by matrix assisted laser desorption/ionization-time of flight mass spectroscopy (MALDI-TOF MS), fourier transform infrared spectroscopy (FTIR) and high performance anion exchange chromatography with pulsed amperometric detection (HPAEC&ndash PAD), and its phenolic compounds were identified and quantified by high-performance liquid chromatography-diode array detector-tandem mass spectrometry (HPLC&ndash DAD&ndash MS/MS). In addition, the spent solids from the hydrothermal treatment were characterized and their potential use was assessed. At the optimal conditions of 140 ° C (severity 2.03), the total oligosaccharide yield accounted for 15.24 g/100 g WIS, of which 10.07 g/100 g WIS were oligogalacturonides. The structural characterization confirmed the presence of partially methyl esterified oligogalacturonides with a wide range of polymerization degrees. After precipitation, 16.59 g/100 g WIS of pectin were recovered, with a galacturonic acid content of 55.41% and high linearity. |
| Databáze: | OpenAIRE |
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