한국식품과학회지 (Korean Journal of Food Science and Technology)

한국식품과학회 (Korean Society of Food Science and Technology)
권호 표지

배의 생장시기에 따른 페놀성물질과 펙틴의 변화

Changes of Phenolic Compounds and Pectin in Asian Pear Fruit during Growth

  • 장선 (연변대학교 농학원 식품과학계) ;
  • 이범수 (연변대학교 농학원 식품과학계) ;
  • 은종방 (전남대학교 식품공학과 농업과학기술연구소)
  • Zhang, Xian (Department of Food Science and Engineering, Yanbian University) ;
  • Lee, Fan-Zhu (Department of Food Science and Engineering, Yanbian University) ;
  • Eun, Jong-Bang (Department of Food Science and Technology and Institute Agricultural Science and Technology, Chonnam National University)
  • 발행 : 2007.02.28
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초록

배 생산자원의 충분한 이용과 부가가치 증대를 위한 개발을 목적으로 생장시기에 따른 부위별 페놀성물질과 과육의 펙틴 변화를 측정하였다. 배의 생장시기에 따라 과피, 과육, 과심부의 총페놀성물질의 함량은 감소하는 경향을 보여 생장초기 과피에서는 20.61-22.98mg/g, 과육에서는 0.87-1.23mg/g, 과심부에서는 6.39-37.96mg/g으로 함량이 가장 높았다. 동일한 품종내에서 대부분 시기에 걸쳐 과피중의 총페놀성물질의 함량이 가장 높았고 과육의 함량이 가장 낮았다. 생장초기 3품종과 각 부위에서 모두 arbutin, chlorogenic acid, epicatechin이 검출되었고 과실이 성숙됨에 따라 과피와 과심부에서는 caffeic acid, catechin 그리고 4-hydroxymethyl benzoic acid(4-HMBA)도 검출되었으며 그 중 arbutin이 가장 많은 양을 차지하였다. 배 과육의 총펙틴 함량은 알코올 불용성 고형분(AIS)의 감소와 함께 생장초기 약 6mg/g에서 급격히 감소하다가 그 이후로 서서히 감소하였다. 생장초기 hydrochloric acid-soluble pectin(HSP)의 함량이 3.21-3.45mg/g으로 가장 많았고 또한 과실의 생장에 따라 감소하였으며 AIS water-solubel pectin(WSP)의 증가가 가장 컸다. 따라서 배의 성숙된 과실에 비하여 미숙한 과실이, 과육에 비하여 과피가 기능성식품소재 개발에 더 유용할 것으로 생각되었다. 현재 미이용되고 있는 미숙과나 낙과 등의 과피를 이용하여 알부틴과 같은 고부가가치 물질을 추출하여 기능성 물질로의 이용을 위해 앞으로 추출 방법 등의 연구를 수행할 예정이다.

The changes in phenolic compounds and pectin content were investigated during the growth of 3 cultivars (Hosui, Niitaka and Chuwhangbae) of Asian pear (Pyrus pyrifolria) fruits. The amounts of total phenolic compounds in peel, flesh and core was 20.61-22.98mg/g, 0.87-1.23mg/g and 6.39-37.96mg/g during early growth, respectively, and decreased with pear growth. Arbutin, chlorogenic acid and epicatechin were detected in each part of all three cultivars during early growth; of these, arbutin content was the highest. Caffeic acid, catechin and 4-hydroxymethyl benzoic acid were detected in the peel and core during the ripening process. The total pectin content in the flesh of Hosui, Niitaka, and Chuwhangbae cultivars decreased from 5.93mg/g, 5.99mg/g and 5.40mg/g to 1.07mg/g, 1.60mg/g and 1.63mg/g, respectively. Of the soluble pectins, the hydrochloric acid-soluble pectin content was the highest, 3.21-3.45mg/g, and decreased during growth.

키워드

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