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Título: | Testing the effect of combining innovative extraction technologies on the biological activities of obtained β-glucan-enriched fractions from Lentinula edodes |
Autor: | Morales, Diego CSIC ORCID ; Ribeiro Smiderle, Fhernanda; Villalva, Marisol CSIC ORCID ; Abreu, Hellen; Rico, Claudia; Santoyo, Susana CSIC ORCID ; Iacomini, Marcello; Soler-Rivas, Cristina CSIC ORCID | Palabras clave: | β-Glucan Shiitake mushrooms Ultrasound-assisted extraction Subcritical water extraction Hypocholesterolemic activity Immunomodulatory activity |
Fecha de publicación: | 2019 | Editor: | Elsevier | Citación: | Journal of Functional Foods 60: 103446 (2019) | Resumen: | Innovative technologies as ultrasound-assisted extraction (UAE) (550 W, 60% amplitude, 50 °C) or subcritical water extraction (SWE) (200 °C, 11.7 MPa) were more effective than hot water extractions to obtain β-glucan-enriched fractions from shiitake mushrooms. UAE required longer extraction time (60 min) than SWE (15 min). Combination of UAE + SWE or pre-treatment of the raw material with supercritical CO2 (SFE) (40 °C, 35 MPa, 3 h) before both extractions yielded extracts containing larger β-glucan concentrations. Fluorimetric/colorimetric determinations indicated that obtained fractions contained (1 → 3)- and (1 → 3),(1 → 6)-β-glucans. NMR confirmed their presence as well as (1 → 3)-α-glucans and heteropolymers including mannose and galactose. SWE (15 min), SFE + SWE or UAE + SWE extracts showed larger glucose levels and lower mannose and galactose residues than the other extractions suggesting certain extraction specificity towards β-glucans. They also included more chitin-derivatives than UAE. The extracts obtained after combination of technologies partially retained their immunomodulatory properties but they showed high hypocholesterolemic activities according to in vitro studies. | Versión del editor: | https://doi.org/10.1016/j.jff.2019.103446 | URI: | http://hdl.handle.net/10261/193796 | DOI: | 10.1016/j.jff.2019.103446 | ISSN: | 1756-4646 | E-ISSN: | 2214-9414 |
Aparece en las colecciones: | (CIAL) Artículos |
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