Microbial biodegradation of corn starch based polyethylene

摘要

In this paper biodegradation of starch based polyethylene were studid. Starch used as a biopolymer to make polyethylene biodegradable. Com starch selected from various kind of starch. Degradation of starch based Low Density Polyethylene has been investigated in soil rich in microorganisms for 8 months. Biodegradable blends exposed to 8 different kinds of fungi and Pseudomonas aeruginosa84th day's. The biodegradability is determined by two ways: first, comparing differences in the weight change of two samples, Second test for biodegradation is by examination of FTIR spectroscopy. Through FTIR spectroscopy, the biodegradability rate and reduction in some of the existing bonds in polymer before and after exposure to mould growth is exhibited and the consumption of polymer by microorganisms is also revealed. In addition, com starch based LDFE exposed to 8 different kinds of ftingi and the degradation studied as a visual.