Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Component Analysis and Antioxidant Effects of Youngia sonchifola Max.

고들빼기의 성분분석과 항산화효과

  • Kim, Mee-Jeong (Gyeongsangbuk-Do Institute of Health and Environment) ;
  • Park, Hee-Suk (Gyeongsangbuk-Do Institute of Health and Environment) ;
  • Lee, Chang-Il (Gyeongsangbuk-Do Institute of Health and Environment) ;
  • Kim, Sung-Hwan (Gyeongsangbuk-Do Institute of Health and Environment) ;
  • Kim, Pil-Nyeon (Gyeongsangbuk-Do Institute of Health and Environment) ;
  • Huh, Wan (Gyeongsangbuk-Do Institute of Health and Environment) ;
  • Lee, Do-Yeong (Gyeongsangbuk-Do Institute of Health and Environment) ;
  • Son, Jin-Chang (Gyeongsangbuk-Do Institute of Health and Environment)
  • 김미정 (경상북도 보건환경연구원) ;
  • 박희숙 (경상북도 보건환경연구원) ;
  • 이창일 (경상북도 보건환경연구원) ;
  • 김성환 (경상북도 보건환경연구원) ;
  • 김필년 (경상북도 보건환경연구원) ;
  • 허완 (경상북도 보건환경연구원) ;
  • 이도영 (경상북도 보건환경연구원) ;
  • 손진창 (경상북도 보건환경연구원)
  • Received : 2010.06.10
  • Accepted : 2010.11.03
  • Published : 2010.12.31
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Abstract

In the present study, we investigated the chemical composition, antioxidant activities and nitrite scavenging ability in leaf and root of Youngia sonchifolia Max. The leaf powder contained 4.3% of water, 53.9% of crude carbohydrate, 21.6% of crude protein, 3.5% of crude fat and 16.7% of crude ash. The root powder contained 4.8% of water, 65.9% of crude carbohydrate, 17.4% of crude protein, 3.2% of crude fat and 8.7% of crude ash. The major mineral elements both in leaf and root powder were potassium, calcium, and magnesium. Contents of unsaturated fatty acids were higher than those of saturated fatty acids both in leaf and root powder. Total polyphenol and flavonoid contents of methanol extract in leaf were 3,922.4 mg/100 g and 1,903.2 mg/100 g respectively. In comparison, total polyphenol and flavonoid contents of methanol extract in root powder were 1,898.4 mg/100 g and 359.8 mg/100 g. The antioxidative activities of several solvents extract of leaf and root powder were investigated by measuring electron-donating ability using 1,1-diphenyl-2-picrylhydrazyl (DPPH). Of the each extracts, ethyl acetate extract of leaf and root powder showed relatively higher antioxidant activity; 94.3% in the leaf powder and 92.9% in the root powder. Nitrite scavenging ability was also highest in the ethyl acetate extract of leaf (45.4%) and root powder (28.8%). These results suggest that ethyl acetate extract of Youngia sonchifolia Max. can be used as a functional materials.

본 연구에서는 고들빼기의 기능성 식품으로서 이용 가능성성을 검토하기 위하여 고들빼기의 잎과 뿌리 분말에 대한 일반성분, 무기질, 지방산을 분석하였으며, 메탄올 추출물 및 용매 순차 분획물을 이용하여 총 폴리페놀, 총 플라보노이드 함량, 전자공여능 및 아질산염 소거능을 측정하였다. 고들빼기의 일반성분 분석 결과 수분, 탄수화물, 조단백질, 조지방 및 조회분 함량은 잎에서는 각각 4.3%, 53.9%, 21.6%, 3.5% 및 16.7%였으며, 뿌리에서는 각각 4.8%, 65.9%, 17.4%, 3.2% 및 8.7%로 나타났다. 무기질 함량은 칼륨이 잎에서 4,936.9 mg/100 g, 뿌리에서 2,193.8 mg/100 g으로 가장 많이 함유되어 있었으며, 그 다음으로 칼슘, 마그네슘, 철분 순으로 나타났다. 지방산은 잎에서 23종, 뿌리에서 20종이 함유되어 있었으며, 잎에는 총 포화지방산, 단일불포화지방 및 다가불포화지방산이 각각 4 1.4%, 2.7%, 56.0%였으며, 뿌리에는 각각 45.8%, 7.7%, 46.5%의 조성 비율을 나타내었다. 총 폴리페놀 함량은 잎과 뿌리에서 각각 3,922.4 mg/100 g, 1,898.4 mg/100 g이였으며, 총 플라보노이드는 각각 1,903.2 mg/100 g, 359.8 mg/100 g으로 나타났다. 잎의 용매 분획별 전자공여능은 에칠아세테이트 분획이 94.3%로 가장 높았으며, 다음으로 부탄올, 클로로포름, 물 및 헥산 분획 순으로 나타났으며, 뿌리에서는 에칠아세테이트 분획이 92.9%로 높은 활성을 보였고, 다음으로 클로로포름, 부탄올, 헥산 및 물 분획 순으로 나타났다. 분획별 아질산염 소거능은 잎 추출물의 에칠아세테이트 분획이 45.4%로 가장 높았고, 헥산 분획 23.5%, 부탄올 분획 21.3%, 클로로포름 분획 18.7%, 물 분획 9.1% 순으로 나타났으며, 뿌리 추출물의 에칠아세테이트 분획 28.8%, 클로로포름 분획 15.6%, 부탄올 분획 8.0%, 헥산 분획 3.9% 및 물 분획 1.5% 순으로 나타났다. 이상의 결과로 볼 때 고들빼기는 무기질 및 폴리페놀 함량이 풍부하고, 에칠아세테이트 분획은 항산화 효과가 우수하며 아칠산염 소거 효과를 보여, 기능성 소재로서의 활용이 가능하리라 생각된다.

Keywords

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