Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Changes in the Non-cellulosic Neutral Sugars of Cell Wall of Persimmon Fruit by Treatment of Cell Wall-Degrading Enzymes

세포벽 분해효소의 처리에 따른 감과실의 세포벽 구성 비섬유성 중성당의 변화

  • 김광수 (영남대학교 식품영양학과) ;
  • 신승렬 (경산대학교 식품과학과) ;
  • 송준희 (대구전문대학 식품영양과) ;
  • 정용진 (동국전문대학 전통발효식품과)
  • Published : 1995.04.01
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Abstract

This paper was performed to investigate the changes of non-cellulosic neutral sugars composition in cell wall of persimmon fruit by treatment of cell wall degrading enzyme in vitro. Rhamnose, xylose and galactose in cell wall by polygalacturonase treatment, arabinose, galactose and rhamnose in cell wall by mixed enzyme treatment and arabinose and galactose in cell wall by ${\beta}-galactosidase$ treatment decreased, respectively. Noncellulosic neutral sugars of pectins extracted cell wall by enzyme treatments decreased and those by polygalacturonase treatment decreased remarkably. Rhamnose, arabinose and xylose in hemicellulose I of cell wall by polygalacturonase treatment were higher than those of untreated, and rhamnose and xylose in that by ${\beta}-galactosidase$ treatment were higher but arabinose, mnnose and galactose decreased. Xylose, mannose and glucose in that by mixed enzyme treatment were higher than those of untreatment and arabinose and galactose decreased. Contents of total non-cellulosic neutral sugars in hemicellulose of untreatment, and contents xylose, and glucose in hemicellulose II of cell wall by polygalacturonase treatmet decreased but those of other treatments were not changed.

추출한 감과실의 세포벽에 polygalacturonase, ${\beta}-galactosidase$ 및 이들의 혼합한 효소액을 in vitro에서 처리하여 세포벽 구성 비섬유성 중성당의 변화를 연구, 검토하였다. 세포벽 구성 비섬유성 중성당의 변화는 효소 처리구에서 무처리 보다 많았으며, polygalacturonase 처리구에서는 rhamnose, xylose, galactose 등이 감소하였고, 혼합효소 처리구에서는 arabinose, galactose, rhamnose, xylose 등이 감소하였으며, ${\beta}-galactosidase$ 처리구에서 arabinose, galactose 등이 감소되었다. Pectin의 비섬유성 중성당은 모든 효소처리구에서 rhamnose, galactose, arabinose가 현저히 감소하였으며, 특히 polygalacturonase 처리시에 보다 현저하게 감소하였다. Hemicellulose I의 경우 polygalacturonase 처리구는 rhamnose, arbinose, xylose의 함량이 무처리구에 비해 높았으며, ${\beta}-galactosidase$ 처리구에서는 rhamnose와 xylose의 함량은 높았고, arbinose, mannose, galactose는 감소하였다. 혼합효소 처리구에서는 xylose, mannose, galactose가 높은 반면 arbinose와 galactose는 낮았다. 한편 hemicellulose II에서 비섬유성 중성당의 변화는 polygalacturonase 처리구에서 xylose와 glucose가 감소하였으나 다른 처리구에서는 뚜렷한 변화가 없었다. 이상의 결과를 종합하여 볼 때 polygalacturonase는 pectin을 분해함으로써 arbinose, galactose, rhamnose를 유리하고, ${\beta}-galactosidase$는 galactan과 arabinogalactan을 분해하여 galactose와 arabinose를 유리시키는 것으로 사료된다.

Keywords

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