Enzymatic Degradation of LDPE/Corn Starch Blends Treated with [EMIM][Cl] Ionic Liquid

被引：0

作者：

Bodirlau, Ruxanda ^{[1
]}

Spiridon, Iuliana ^{[1
]}

Teaca, Carmen-Alice ^{[1
]}

机构：

[1] Petru Poni Inst Macromol Chem, Iasi 700487, Romania

来源：

MATERIALE PLASTICE | 2010年 / 47卷 / 02期

关键词：

corn starch; LDPE/starch blends; degradability; enzymes; ionic liquid; POLYETHYLENE; AMYLOSE; BIODEGRADATION; COMPOSITES; CELLULOSE; TABLETS; RELEASE;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The susceptibility of starch-based biomaterials to enzymatic degradation by alpha-amylase and peroxidase enzymes was investigated. A polymeric blend of corn starch with polyethylene, designated by SLDPE, was studied. The degradation was evidenced by gravimetry, scanning electron microscopy (SEM), FTIR spectroscopy, and X-ray diffraction. Analysis performed showed that starch blend is susceptible to enzymatic degradation, significantly in the presence of ionic liquid, as evidenced by increased weight loss and reducing sugars in solution. SEM analysis evidenced the presence of fractures and pores at the materials surface as a result of starch degradation by alpha-amylase. FTIR spectra confirmed a decrease on the band corresponding to glycosidic linkage (-C-O-C-) of starch.

引用

页码：126 / 129

页数：4

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