PROMOTING ACCESS TO AFRICAN RESEARCH

African Journal of Biotechnology

Log in or Register to get access to full text downloads.

Remember me or Register



Microbial biodegradable potato starch based low density polyethylene

M Borghei, A Karbassi, S khoramnejadian, A Oromiehie, AH Javid

Abstract


Plastic materials remain in the nature for decades. Slow degradation of plastics in the environment caused a public trend to biodegradable polymers. The aim of this research was to produce the microbial biodegradable low density polyethylene with potato starch. Degradation of potato starch based low density polyethylene (LDPE) was investigated in soil rich in microorganisms for 8 months. Weight differences of polymeric samples before and after degradation in soil indicated soil biodegradation. Fourier transform spectroscopy (FTIR) approved the result. Scanning electron microscope (SEM) and weight change after 84 days’ exposure to Pseudomonas aeruginosa confirmed degradation by microorganisms. In addition, potato starch based LDPE was exposed to 8 different kinds of fungi and the degradation was studied visually. Result confirmed the microbial
biodegradability of potato starch based LDPE blend in natural and laboratory condition.



AJOL African Journals Online