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Adhesive Properties of Ethanol-Modified Soy Proteins(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2008年06期
Page:
1045-1048
Research Field:
Publishing date:

Info

Title:
Adhesive Properties of Ethanol-Modified Soy Proteins
Author(s):
BAN Yu-feng; SHEN Guo-liang; SONG Ju-ling; XU Tie-jun
Shenyang University of Technology College of Petrochemical Engineering，Liaoyang 111003，Liaoning，China
Keywords:
Soybean protein; Ethanol; Water resistance; Shearing strength; Wood
PACS:
TQ432.7
DOI:
10.11861/j.issn.1000-9841.2008.06.1045
Abstract:
Adhesive properties of ethanol-modified soy proteins on woods were investigated.Soy proteins can be modified partially with ethanol and then hydrophobic amino acids exposed.The exposure of hydrophobic amino acids may enhance water resistance.Orthogonal test was carried out to further optimize the conditions which were determined as follow：concentration of ethanol 30%，SPI / ethanol aqueous solution mass ratio 1：9，modifying time 45min，and modifying temperature 75℃.Under these conditions the adhesion was made and then applied on walnut specimen.After three 48 hours cycles of water-soaking，followed by 48 hours of air-drying，the shearing strength of the specimen decreased from 81.6 MPA which before three cycles of water-soaking to 73.9 MPA.The ratio of decrease was 9.4%.Results indicate that soy proteins modified with ethanol enhance water resistance as well as adhesive strength.

References:

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Last Update: 2014-10-06