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dc.contributor.authorMateos-Aparicio Cediel, Inmaculada-
dc.contributor.authorMateos-Peinado, C-
dc.contributor.authorJiménez Escrig, Antonio-
dc.contributor.authorRupérez Antón, Pilar-
dc.date.accessioned2014-08-21T06:57:48Z-
dc.date.available2014-08-21T06:57:48Z-
dc.date.issued2010-
dc.identifierdoi: 10.1016/j.carbpol.2010.04.020-
dc.identifierissn: 0144-8617-
dc.identifier.citationCarbohydrate Polymers 82: 245- 250 (2010)-
dc.identifier.urihttp://hdl.handle.net/10261/100947-
dc.description.abstractAn alcohol insoluble residue (AIR) from okara, a byproduct from soymilk, was mainly composed by indigestible carbohydrate (55.7%). After sequential extraction, three alkali-soluble fractions (12.7% yield) and an insoluble residue (RES, 58.7% yield) were obtained. Soluble polysaccharide fractions showed in vitro reduction power (11-26 μmol Trolox Equivalent (TE)/g dry weight (dw)) and free radical scavenging activity (63-78 μmol TE/g dw). The highest antioxidant activity was exhibited by 0.05 M NaOH-soluble fraction, rich in pectins. The 1 M KOH-soluble fraction had a mixture of hemicellulosic and pectic polysaccharides, and 4 M KOH-soluble fraction contained the bulk of xyloglucans, although some pectins could also be present. RES contained cellulose along with residual pectins. FT-IR spectra of okara and AIR exhibited an absorption band at 1740 cm-1 of carboxylic ester from pectins, which lacked in the fractions. Moreover, they showed absorption bands at 1650 and 1550 cm-1 of proteins, and at 900-890 cm-1 of β-glycosidic linkages. Potential antioxidant activity of okara cell-wall polysaccharides could be attributed to pectins, although the contribution of residual proteins cannot be ruled out. © 2010 Elsevier Ltd. All rights reserved.-
dc.publisherPergamon Press-
dc.rightsclosedAccess-
dc.subjectByproduct-
dc.subjectOkara-
dc.subjectCell-wall polysaccharides-
dc.subjectAntioxidant activity-
dc.subjectGlycine max-
dc.subjectSoybean-
dc.titleMultifunctional antioxidant activity of polysaccharide fractions from the soybean byproduct okara-
dc.typeArtículo-
dc.identifier.doi10.1016/j.carbpol.2010.04.020-
dc.date.updated2014-08-21T06:57:49Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
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