کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5203109 1381920 2010 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Properties stability and biodegradation behaviors of soy protein isolate/poly (vinyl alcohol) blend films
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Properties stability and biodegradation behaviors of soy protein isolate/poly (vinyl alcohol) blend films
چکیده انگلیسی

The objective of this work was to investigate the color, transparency, water sensitivity and mechanical properties 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. The addition of PVA decreased the ability of SPI protein molecules to absorb water and enhanced the mechanical properties of blend films comparing to pure SPI film in 30 days. 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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 95, Issue 7, July 2010, Pages 1226-1237
نویسندگان
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