Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Physiological Activities According to Cultivars and Parts of Ulsan Pear

울산지역 생산 배의 품종 및 부위별 생리활성

  • Choi, Jeong-Hwan (Division of Applied Life Science, Gyeongsang National University) ;
  • Lee, Eun-Young (Food and Drug Research Division, Ulsan Institute of Health and Environment) ;
  • Kim, Jong-Su (Food and Drug Research Division, Ulsan Institute of Health and Environment) ;
  • Choi, Gil-Bae (Food and Drug Research Division, Ulsan Institute of Health and Environment) ;
  • Jung, Su-Geun (Food and Drug Research Division, Ulsan Institute of Health and Environment) ;
  • Ham, Yu-Sik (Food and Drug Research Division, Ulsan Institute of Health and Environment) ;
  • Seo, Dong-Cheol (Division of Applied Life Science, Gyeongsang National University) ;
  • Heo, Jong-Soo (Division of Applied Life Science, Gyeongsang National University)
  • 최정환 (경상대학교 응용생명과학부) ;
  • 이은영 (울산광역시 보건환경연구원) ;
  • 김종수 (울산광역시 보건환경연구원) ;
  • 최길배 (울산광역시 보건환경연구원) ;
  • 정수근 (울산광역시 보건환경연구원) ;
  • 함유식 (울산광역시 보건환경연구원) ;
  • 서동철 (경상대학교 응용생명과학부) ;
  • 허종수 (경상대학교 응용생명과학부)
  • Published : 2006.03.31
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Abstract

This study was performed to confirm physiological activities according to cultivars and parts of Ulsan pear (wonhwang, pungsu, whangkeum, whasan and shingo). Total contents of phenolic compounds from peel, pulpy substance and core were 699.3-800.6, 51.5-112.5 and 254.0-401.5 mg/100 g as tannic acid equivalent, respectively. There were difference contents by cultivars, and peel and core of shingo and pulpy substance of wonhwang showed high contents, respectively. Total flavonoid contents of peel, pulpy substance and core were 125.2-164.2, 25.9-35.9 and 45.1-60.0 mg/100g, respectively and those of shingo cultivar showed comparatively high. Electron donating ability was in the order of peel (66.1-90.7%), core (48.5-82.8%) and pulpy substance (24.9-58.2%), and whasan cultivar showed comparatively low. Nitrite scavenging activity was in the order of peel (58.2-100.8%), core (59.5-86.2%), pulpy substance (39.9-82.5%). There were little difference by cultivars of core but peel and pulpy substance of shingo cultivar showed comparatively low nitrite scavenging activity. And as the concentration of each extract increased, nitrite scavenging activity increased. Xanthine oxidase inhibition rate was in the order of peel (14.1-75.4%), core (5.3-71.8%), pulpy substance (2.2-67.5%). And there little difference by cultivars and which was increased as the concentration of each extract increased.

울산에서 생산된 배의 품종 및 부위에 따른 생리활성을 확인하고자 총페놀성화합물 및 총플라보노이드 함량과 각 메탄올 추출물의 전자공여능, 아질산염 소거능 및 xanthine oxidase 저해능 실험을 수행한 결과는 다음과 같다. 총페놀 함량은 과피, 과육 및 과심이 각각 699.3-800.6, 51.5-112.5 및 254.0-401.5 mg/100 g(dry basis)로, 과피 > 과심 > 과육의 순으로 높아 부위별로 차이가 났다. 또한 품종별 총페놀 함량은 유의적인 차이를 보였는데 신고의 과피와 과심, 원황의 과육이 다른 품종에 비해 비교적 높은 함량을 나타내었다. 총플라보노이드 함량은 과피, 과육 및 과심이 각각 125.2-164.2, 25.9-35.9 및 45.1-60.0 mg/100 g로 과피가 과육과 과심에 비해 각각 4-5배와 2-3배 높은 함량을 보였다. 또한 품종별로는 신고가 모든 부위에서 다소 높은 함량을 나타내었다. 전자공여능은 과피(66.1-90.7%) > 과심(48.5-82.8%) > 과육(24.9-58.2%)의 순으로 높아 과피가 과육과 과심에 비해 높은 활성을 보였다. 또한, 각 부위의 전자공여능은 품종간에 차이를 보여 화산이 모든 부위에서 낮은 활성을, 황금이 대체로 높은 활성을 보였다. 아질산염 소거능은 과피(58.2-100.8%) > 과심(59.5-86.2%) > 과육(39.9-82.5%) 순으로 높았고, 신고의 과피와 과육이 다소 낮은 소거능을 보였고, 과심의 품종간의 유의한 차이는 없는 것으로 나타났다. 또한 추출물 농도에 따른 소거능은 농도 의존적으로 소거능이 증가하였다. 각 추출물의 xanthine oxidase 저해활성은 과피(14.1-75.4%) > 과심(5.3-71.8%) > 과육(2.2-67.5%)의 순으로 높았고, 배 추출물의 농도 증가에 따라 xanthine oxidase 저해활성은 증가하였다.

Keywords

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