Antioxidative Effect of Extracts from Different Parts of Kohlrabi

@article{Pak2014AntioxidativeEO,
  title={Antioxidative Effect of Extracts from Different Parts of Kohlrabi},
  author={Won Min Pak and Koth-Bong-Woo-Ri Kim and Min-Ji Kim and Bo-Kyeong Kang and Si-Woo Bark and Bo-Ram Kim and Na-Kyung Ahn and Yeon-Uk Choi and S. R. Yoon and Dong Hyun Ahn},
  journal={Journal of Applied Biological Chemistry},
  year={2014},
  volume={57},
  pages={353-358}
}
본 연구는 녹색 및 보라색 콜라비 부위(껍질, 잎, 엽육)에 따른 항산화 효과에 대해서 검증하고자 물 및 95% 에탄올에서 추출하였다. 항산화 활성을 측정하기 위하여 총 폴리페놀 함량, DPPH 라디칼 소거능, 금속봉쇄력, 환원력, rancimat에 의한 산화도를 측정하였다. 그 결과, 녹색 껍질 에탄올 추출물 및 보라색 잎 물 추출물이 각각 12.00 및 11.70 mg/mL로 가장 높은 총 폴리페놀 함량을 가졌다. DPPH 라디칼 소거능의 경우 보라색 잎 및 껍질의 물 및 에탄올 추출물에서 뛰어난 라디칼 소거능을 가졌으며, 금속봉쇄력의 경우 보라색 잎 물 추출물이 가장 높은 금속봉쇄력을 나타냈다. 반면, 환원력 및 rancimat에 의한 항산화도의 경우 콜라비 추출물은 대조구에 비하여 낮은 항산화력을 나타내었다. 따라서, 본 연구는 보라색 콜라비의 잎과 껍질 부위가 항산화 소재로서의 활용 가능성이 높음을 확인하였다. 

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