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http://hdl.handle.net/10261/100947
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dc.contributor.author | Mateos-Aparicio, Inmaculada | - |
dc.contributor.author | Mateos-Peinado, C | - |
dc.contributor.author | Jiménez Escrig, Antonio | - |
dc.contributor.author | Rupérez Antón, Pilar | - |
dc.date.accessioned | 2014-08-21T06:57:48Z | - |
dc.date.available | 2014-08-21T06:57:48Z | - |
dc.date.issued | 2010 | - |
dc.identifier | doi: 10.1016/j.carbpol.2010.04.020 | - |
dc.identifier | issn: 0144-8617 | - |
dc.identifier.citation | Carbohydrate Polymers 82: 245- 250 (2010) | - |
dc.identifier.uri | http://hdl.handle.net/10261/100947 | - |
dc.description.abstract | An 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.publisher | Pergamon Press | - |
dc.rights | closedAccess | - |
dc.subject | Byproducts | - |
dc.subject | Okara | - |
dc.subject | Cell-wall polysaccharides | - |
dc.subject | Antioxidant activity | - |
dc.subject | Glycine max | - |
dc.subject | Soybean | - |
dc.title | Multifunctional antioxidant activity of polysaccharide fractions from the soybean byproduct okara | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1016/j.carbpol.2010.04.020 | - |
dc.date.updated | 2014-08-21T06:57:49Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | No Fulltext | - |
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