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KMID : 1024520040130090827
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Journal of the Environmental Sciences
2004 Volume.13 No. 9 p.827 ~ p.833
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Biodegradation of Starch-Filled Acrylate Film by α-Amylase
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Kim Jung-Du
Yoo Su-Yong
Kam Sang-Kyu
Ju Chang-Sik
Lee Min-Gyu
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Abstract
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The biodegradability of vinyl acetate acrylate resin and com starch blend was studied by determination of the reduced sugars produced after enzymatic hydrolysis. The starch hydrolysis reaction by was achieved within 5 minutes. Optimal ranges of temperature and pH for the starch hydrolysis by were around and 6.5-7.2, respectively. The biodegradability of the starch-filled acrylate films increased as the content of starch increased. The biodegradation of starch in the starch-filled acrylate film by was about 48.6% of that of pure starch. This value of biodegradable starch-filled acrylate film gave a good result with enzymatic shortcut test. The surface morphologies of the starch-filled acrylate film after enzymatic hydrolysis were investigated by scanning electron microscopy (SEM).
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KEYWORD
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Biodegradation, α-amylase, Enzyme, Starch, Acrylate film
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