Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Effects of Soil pH on Nutritional and Functional Components of Chinese Cabbage (Brassica rapa ssp. campestris)

토양 pH가 배추(Brassica rapa ssp. campestris)의 영양성분과 기능성분에 미치는 영향

  • Lee, Jo-Eun (Department of Food Science and Technology, Chungnam National University) ;
  • Wang, Pingjuan (Department of Food Science and Technology, Chungnam National University) ;
  • Kim, Gyung-Yun (Department of Food Science and Technology, Chungnam National University) ;
  • Kim, Sung-Han (Department of Food Science and Technology, Chungnam National University) ;
  • Park, Su-Hyoung (Vegetablel Research Division, National Institute of Horticultural & Herbal Science) ;
  • Hwang, Yong-Soo (Department of Horticultural Science, Chungnam National University) ;
  • Lim, Yong-Pyo (Department of Horticultural Science, Chungnam National University) ;
  • Lee, Eun-Mo (Horticultural Research Division, Chungnam Agricultural Research & Extension Services) ;
  • Ham, In-Ki (Horticultural Research Division, Chungnam Agricultural Research & Extension Services) ;
  • Jo, Man-Hyun (Horticultural Research Division, Chungnam Agricultural Research & Extension Services) ;
  • An, Gil-Hwan (Department of Food Science and Technology, Chungnam National University)
  • Received : 2009.08.31
  • Accepted : 2010.01.06
  • Published : 2010.06.30
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Abstract

The contents of functional and nutritional components of 13 cultivars of Chinese cabbage (CC, $Brassica$ $rapa$ subspecies $campestris$) were analyzed to compare the effects of soil pH of the greenhouse (pH 6.2) and outdoor (pH 7.6). The CC cultivated on pH 6.2 (CC-6.2) soil contained significantly increased amounts (2-9 fold) of pectin, crude protein, vitamin C and vitamin E compared to the counterpart (CC-7.6). The contents of ash and the minerals (Ca, Fe, Na, and Mn) were also significantly increased in CC-6.2. However, CC-6.2 contained 40-50% lower contents of reducing sugars, cellulose and crude fat than CC-7.6. CC-7.6 contained more glucosinolates, gluconasturtiin (18.33 vs. $1.16nmol{\cdot}g^{-1}$ wet weight) and gluconapin (145 vs. $2nmol{\cdot}g^{-1}$ wet wt), than CC-6.2. In conclusion, CC-6.2 had an improved texture (high pectin and low cellulose) and nutritional value (high in protein, Ca, Fe, vitamin C, and E), whereas the CC-7.6 had better taste (high in reducing sugars) and anticancer functionality (high in glucosinolates).

비닐하우스의 낮은 pH 토양(pH6.2)과 노지의 높은 pH 토양(pH7.6) 의 pH 차이가 배추 품질에 미치는 영향을 알아보기 위하여 13종 배추의 기능성 성분과 영양성분을 분석하였다. 낮은 pH 토양에서 재배된 배추는 높은 pH 토양에서 재배된 배추에 비하여 펙틴, 조단백질, 비타민 C, 비타민 E의 함량이 현저히 높았으며 회분과 무기질(Ca, Fe, Na, Mn) 또한 높았다. 그러나 환원당, 셀룰로오스, 조지방의 함량은 낮은 pH 토양의 배추가 높은 pH 토양의 것 보다 40-50% 낮았다. 글루코시놀레이트의 일종인 gluconasturtiin(18.33 vs. $1.16nmol{\cdot}g^{-1}$ wet weight)과 gluconapin(145 vs. $2nmol{\cdot}g^{-1}$ wet weight) 은 높은 pH 토양의 배추에서 낮은 pH 것보다 의미 있게 높았다. 본 연구 결과 낮은 pH 토양에서 재배된 배추는 펙틴의 함량이 높고 셀룰로오스의 함량이 낮아 조직감이 좋으며 단백질, Ca, Fe, vitamin C와 E의 함량이 높아 영양성분이 향상 되었으나 높은 pH 토양에서 재배된 배추는 환원당과 글루코시놀레이트의 함량이 많아 맛과 항암성은 높음을 알 수 있었다.

Keywords

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