Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Biodegradation of Starch-Filled Acrylate Film by α-Amylase

전분 충전 아크릴레이트 필름의 α-Amylase에 의한 생분해

  • 김정두 (부경대학교 응용화학공학부) ;
  • 유수용 (부경대학교 응용화학공학부) ;
  • 감상규 (제주대학교 토목환경공학부) ;
  • 주창식 (부경대학교 응용화학공학부) ;
  • 이민규 (부경대학교 응용화학공학부)
  • Published : 2004.09.01
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Abstract

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 $\alpha-amylase$ was achieved within 5 minutes. Optimal ranges of temperature and pH for the starch hydrolysis by $\alpha-amylase$ were around $80^{\circ}C$ 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 $\alpha-amylase$ 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).

Keywords

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