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Chemical properties and antioxidant activities of the sprouts of Kalopanax pictus, Cedrela sinensis, Acanthopanax cortex at different plucking times

채취시기별 엄나무, 참죽, 오가피 햇순의 화학적 특성 및 항산화 활성

  • Im, Hee-Jin (Department of Food and Nutrition, Yeungnam University) ;
  • Jang, Hye-Lim (Department of Food and Nutrition, Yeungnam University) ;
  • Jeong, Yong-Jin (Department of Food Science and Technology, Keimyung University) ;
  • Yoon, Kyung-Young (Department of Food and Nutrition, Yeungnam University)
  • 임희진 (영남대학교 식품영양학과) ;
  • 장혜림 (영남대학교 식품영양학과) ;
  • 정용진 (계명대학교 식품가공학과) ;
  • 윤경영 (영남대학교 식품영양학과)
  • Received : 2013.02.07
  • Accepted : 2013.05.24
  • Published : 2013.06.30

Abstract

The nutritional composition, bioactive components and antioxidant activities of the first and second sprouts of Kalopanax pictus, Cedrela sinensis and Acanthopanax cortex were investigated to increase the utilization of these sprouts. The moisture and crude lipid contents of the first sprout were higher than those of the second sprout, and the crude fiber and carbohydrate contents were higher in the second sprout. The organic acid content of the first sprout was higher than that of the second sprout. The second sprout had higher free amino acid contents in K. pictus and C. sinensis, and the first sprout had a higher content in A. cortex. Especially, the second sprout of K. pictus and C. sinensis had a higher level of glutamic acid, which is a major taste component of foods, than the first sprout. The second sprouts of all the samples had higher mineral levels than the first sprouts. In contrast, the first sprouts had higher total polyphenol and flavonoid contents and showed a higher antioxidant activity level, except for the DPPH radical scavenging activity of the A. cortex. The results of this study show that the nutritive value of the second sprout was higher than that of the first sprout, but the bioactive components value of the second sprout was lower than that of the first sprout. Therefore, additional research is needed on the cultivation condition required to maintain the nutritive values and the antioxidant activities of these sprouts.

햇순의 활용도를 높이기 위해 엄나무, 참죽 및 오가피 2차 순의 영양성 및 기능성 등 이화학적 특성을 1차 순과 비교하여 측정하였다. 수분과 조지방은 2차 순에 비해 1차 순의 함량이 높았으며, 조섬유와 탄수화물의 함량은 2차 순이 1차 순에 비해 유의적으로 높게 나타났다. 유기산은 1차 순에 비해 2차 순의 함량이 높게 나타났으나 유의적인 차이는 없었다. 유리아미노산은 엄나무와 참죽에서 2차 순이 1차 순에 비해 높은 함량을 보였으나 오가피는 1차 순이 2차 순에 비해 높은 함량을 나타내었다. 특히, 엄나무와 참죽의 2차 순은 감칠맛에 관여하는 glutamic acid의 함량이 1차 순에 비해 매우 높게 나타났다. 무기질은 모든 햇순의 2차 순이 1차 순에 비해 높은 함량을 보였다. 햇순 2차 순의 총폴리페놀과 플라보노이드 함량은 1차 순에 비해 낮은 함량을 나타내었으며, 오가피의 DPPH 라디칼 소거능을 제외한 모든 항산화 활성에서 1차 순이 2차 순에 비해 높은 활성을 보였다. 이상의 결과로 햇순은 1차 순에 비해 영양성은 잘 유지되고 있으나 기능성이 감소되어 향후 기능성을 유지할 수 있는 재배조건에 대한 연구 및 2차 순의 식품학적 활용도를 높일 수 있는 다양한 가공방법에 대한 연구가 필요할 것으로 판단된다. 또한 향후 채취 시기별 이화학적 특성 및 기능성 변화에 대한 메커니즘 연구도 필요할 것으로 판단된다.

Keywords

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