Environmental-Friendly Soy Protein Isolate/Poly(Vinyl Alcohol) Blend Films: Biodegradation Behaviors

Abstract:

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The objective of this work was to investigate the color stability in air under photo-oxidative degradation influencing consumer acceptance and biodegradation behaviors in soil of soy protein isolate (SPI)/poly (vinyl alcohol) (PVA) blend packaging films during 30 days. The results showed that PVA could dilute the yellow color and make the SPI-based films less darkness in application and the transparency of SPI/PVA films at various stages of degradation was improved. Aerobic biodegradation of films in soil proved that the PVA compound interacting with protein imposed negative effects on biodegradation of blend films prolonging their decomposing time. The SPI/PVA blend films decomposed into small fragments of less complex molecules along with surface completely digested after 30 days.

Info:

Periodical:

Edited by:

Jinsheng Liang and Lijuan Wang

Pages:

151-155

DOI:

10.4028/www.scientific.net/AMR.178.151

Citation:

J. F. Su et al., "Environmental-Friendly Soy Protein Isolate/Poly(Vinyl Alcohol) Blend Films: Biodegradation Behaviors", Advanced Materials Research, Vol. 178, pp. 151-155, 2011

Online since:

December 2010

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$35.00

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