Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Chemical Components and Physiological Functionalities of Brassica campestris ssp rapa Sprouts

순무 싹의 화학성분과 생리기능성

  • Ha, Jin-Ok (Dept. of Food and Nutrition, Chosun University) ;
  • Ha, Tae-Man (Dept. of Food and Nutrition, Chosun University) ;
  • Lee, Jae-Joon (Dept. of Food and Nutrition, Chosun University) ;
  • Kim, Ah-Ra (Dept. of Food and Nutrition, Chosun University) ;
  • Lee, Myung-Yul (Dept. of Food and Nutrition, Chosun University)
  • 하진옥 (조선대학교 식품영양학과) ;
  • 하태만 (조선대학교 식품영양학과) ;
  • 이재준 (조선대학교 식품영양학과) ;
  • 김아라 (조선대학교 식품영양학과) ;
  • 이명렬 (조선대학교 식품영양학과)
  • Published : 2009.10.31
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Abstract

This study was carried out to investigate physicochemical and functional properties of dried Brassica campestris ssp rapa (BR) sprouts. The proximate compositions of BR sprouts as dry matter basis were 2.35% of moisture content, 22.51% of crude protein, 21.60% of crude lipid, 4.35% of crude ash, and 49.19% of carbohydrate, respectively. The free sugars were identified as glucose and fructose. Analyzing total amino acids, 18 kinds of components were isolated from BR sprouts. The essential amino acid contained in BR sprouts accounted for 47.00% of total amino acid, while the non-essential amino acid accounted for 53.00%. The contents of vitamin A and vitamin E were 0.09 mg% and 3.06 mg%, respectively. Tartaric acid was the major organic acid. Among the minerals in dried BR sprouts, the content of potassium was the highest (882.50 mg%) and those of magnesium and calcium were comparatively high (342.85 mg%, 274.30 mg%). BR sprouts ethanol extract significantly inhibited the HMG-CoA reductase activity in a concentration-dependent manner in vitro. Furthermore, nitrite scavenging ability and DPPH radical scavenging activity of the ethanol extract of BR sprouts were 64.25% and 69.29% at a concentration of 1,000 ${\mu}g$/mL, respectively. These results suggest that BR sprouts possess potential antioxidative capacity and HMG-CoA reductase inhibitory activity.

순무 싹의 생리활성 기능과 이용 가능성에 관한 연구의 일환으로 순무 싹의 영양성분 및 생리활성 효능을 검증하여 측정한 결과는 다음과 같다. 순무 싹 분말의 일반성분은 건물(dry basis)을 기준으로 수분함량은 2.35%, 조단백질 22.51%, 조지방 21.60%, 조회분 4.35% 및 탄수화물 49.19%를 함유하였다. 구성당은 glucose가 73.39 mg/L로 가장 많았고, fructose가 12.62 mg/L 검출되어 총 2종이 검출되었다. 아미노산은 glutamic acid 함량이 242.57 mg%로 가장 많이 함유되었고, 다음으로 leucine, aspartic acid, valine 순이었다. 순무 싹의 구성 지방산 중 포화지방산 함량은 tricosanoic acid가 가장 높았으며 heneicosanoic acid, palmitic acid 순으로 나타났다. 불포화지방산은 linoleic acid가 가장 높았으며 oleic acid, linolenic acid 순으로 나타났다. 유기산은 총 2종의 유기산이 검출되었으며, tartaric acid 함량이 2,962.74 mg/L로 가장 높았고 다음으로 malic acid 순이었다. 비타민 A와 E의 함량은 각각 0.09 mg%와 3.06 mg%이었다. 무기질은 총 8종의 성분이 검출되었고, 이중 K 함량이 가장 많았으며, 다음으로 Mg, Ca, Na 순이었고 Fe, Zn, Mn, Cu의 함량은 미량이었다. 순무 싹 에탄올 추출물의 기능성을 측정한 결과 순무 싹 에탄올 추출물 100 ${\mu}g$/mL 농도에서 35.24%의 HMG-CoA reductase 저해활성을 나타내었다. 또한 항산화 활성은 시료의 농도가 1,000 ${\mu}g$/mL일 때 아질산염 소거능 및 DPPH radical 소거능이 각각 64.25% 및 69.29%로 매우 높은 항산화 활성을 나타내었다. 이상의 결과 순무 싹 분말은 필수아미노산을 비롯한 항산화 비타민과 무기질을 다량 함유하고 있으며 순무 싹 에탄올 추출물은 HMG-CoA reductase 저해활성 및 항산화 활성이 우수한 것으로 나타나 순무 싹을 이용한 기능성식품의 개발가치가 한층 더 높아질 것으로 기대되어진다.

Keywords

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