Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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A Study of the Nutritional Composition of Aralia continentalis Kitagawa and Aralia continentalis Kitagawa Leaf

땅두릅과 땅두릅잎의 영양성분에 관한 연구

  • Han, Gwi-Jung (Department of Korean Food Research for Globalization. NAAS, RDA) ;
  • Shin, Doung-Sun (Department of Korean Food Research for Globalization. NAAS, RDA) ;
  • Jang, Myung-Sook (Department of Food Science and Nutrition, Dankook University)
  • 한귀정 (농촌진흥청 한식세계화연구단) ;
  • 신동선 (농촌진흥청 한식세계화연구단) ;
  • 장명숙 (단국대학교 식품영양학과)
  • Published : 2008.12.31
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Abstract

In this study, we assessed the functional characteristics of Aralia continentalis Kitagawa (AcK) and Aralia continentalis Kitagawa leaf (AcK-leaf), including crude saponin contents, antioxidant activity, nutritive elements, dietary fiber, and chlorophyll contents. The results of our analysis of nutritive elements in AcK, the contents of the general components, inorganic components, and vitamins were all relatively high. The contents of inorganic components were also high in the following order: K>Ca>P>Na>Mg. Among vitamins, $\beta$-carotene and vitamin C contents were all high. The crude saponin content was 63.7 mg/g in the AcK and 63.5 mg/g in the AcK leaf, and the antioxidant activity was determined to be relatively high. With regard to the dietary fiber content, the total dietary fiber content was 2.13% (soluble 0.40, insoluble 1.72) in the AcK and 5.98% (soluble 1.06, insoluble 4.89) in the AcK leaf, and the total chlorophyll content was 92.58 mg in the AcK and 147.25 mg/100 g in the AcK-leaf.

본 연구에서는 생식용으로 많이 이용되는 땅두릅이 적정 출하시기가 끝나면 기온상승으로 인하여 생식용으로 부적합한 제품이 다량 발생하고, 땅두릅 잎 또한 가축의 사료로 쓰이거나 그대로 버려지고 있어 가공적성에 맞는 상품개발이 필요한 상황이어서 이용가치를 높이는 방안으로 땅두릅과 땅두릅잎에 대한 기초자료를 마련하고자 영양 및 기능성 성분을 조사하고자 하였다. 땅두릅과 땅두릅잎의 일반성분 및 무기성분, 비타민 모두에서 비교적 높은 결과를 나타내었는데, 일반성분에 있어서 땅두릅은 수분이 94.50%로 나타났으며 탄수화물이 2.20%, 조섬유가 0.90%로 나타났고 조단백질은 1.60%, 조지방은 0.20%, 회분은 0.70% 이었다. 또한 땅두릅잎은 수분이 85.70%, 탄수화물이 7.00%이었고 조섬유가 1.50%, 조단백질이 4.30%, 조지방이 0.30%, 회분이 1.20%로 나타났다. 특히 무기성분은 K가 땅두릅에 264.00 mg%과 땅두릅잎에 172.00 mg%으로 가장 많이 함유되어 있었으며 다음으로 Ca, P, Na, Mg순으로 나타났다. 비타민은 베타카로틴이 가장 많았고 다음으로 비타민 C의 함유량도 많음을 알 수 있었다. 조사포닌 함량은 땅두릅이 63.7 mg/g, 땅두릅잎은 63.5 mg/g으로 비교적 많은 조사포닌을 함유하고 있었다. 항산화활성능은 페놀성 화합물이 각각 58.25, $79.32{\mu}g/mg$이었고 총 플라보노이드는 각각 11.25, $15.36{\mu}g/mg$로 나타났으며 전자공여능은 32.23, $28.06{\mu}g/mg$으로 우수한 소거능을 가짐을 확인하였다. 또한 식이섬유 함유량은 땅두릅의 경우 총 식이섬유 함량이 2.13%, 땅두릅잎은 총 식이섬유가 5.98%로 비교적 높은 식이섬유가 존재함을 확인하였다. 총 클로로필 함량도 땅두릅이 92.58 mg%와 땅두릅잎이 147.25 mg%로 높게 함유되어 있는 것이 확인되었다.

Keywords

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