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Asaby-productsofsoyoilproduction,plentyofsoyproteinexistedinsoydreg,andhowtoutilizethiskindofrenewableresourceisbecomingmoreandmoreattractive.Inthiswork,soyproteinwasfirstextractedfromsoydregandthedifferentconcentrationsolutionsofsoyproteinwerepreparedwithstrongalkalinesolutionunderultrasonicagitation.Theseproteinsolutionswerethencrosslinkedwithglutaraldehydeandplasticizedbyglycerintoformfilms.Preliminaryresultsshowedthatthecrosslinkedfilmfromhigherconcentrationsolution(20wt%)ofsoyproteinexhibitedlowerwatercontent,higherwater-absorptionrate,andbettermechanicalpropertythanthosepreparedbylowerproteinconcentration(10wt%and5wt%). |
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