Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Antioxidant Activity and Component Analysis of Populus Tomentiglandulosa Extract

현사시나무 추출물의 항산화활성과 성분분석

  • Choi, Sun-Il (Department Food Science and Biotechnology, Kangwon National University) ;
  • Hwang, Seok-Jun (Gangwon Institute of Health and Environment) ;
  • Lee, Ok-Hwan (Department Food Science and Biotechnology, Kangwon National University) ;
  • Kim, Jong Dai (Department Food Science and Biotechnology, Kangwon National University)
  • 최선일 (강원대학교 바이오산업공학부 식품생명공학전공) ;
  • 황석준 (강원도 보건환경연구원) ;
  • 이옥환 (강원대학교 바이오산업공학부 식품생명공학전공) ;
  • 김종대 (강원대학교 바이오산업공학부 식품생명공학전공)
  • Received : 2020.01.30
  • Accepted : 2020.03.20
  • Published : 2020.04.30
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Abstract

Populus Tomentiglandulosa (PT) is known for pharmacological effects against ischemia-injury and immune activity. This study aimed to investigate the nutritional components, total phenol and flavonoid contents, antioxidant activities of PT extract. Among the mineral contents, the K content (907.5 mg/100 g) was the highest in the PT extract. Vitamins C (6.1 mg/100 g) and nicotinic acid (3.1 mg/100 g) were also found in high amounts. Fructose (2.2%) and glucose (1.6%) were found as free sugars in the PT extract. The total phenolic and flavonoid contents of PT extract were 115.4±0.85 mg GAE/g and 20.9±1.14 mg QE/g, respectively. Results of HPLC analysis of PT extract identified catechin (9.1±0.27 mg/g), caffeic acid (4.1±0.57 mg/g), p-coumaric acid (2.1±0.49 mg/g), chlorogenic acid (1.6±1.86 mg/g), and gallic acid (1.4±0.35 mg/g), respectively. These results suggest that the PT extract possesses high nutritional component and antioxidant properties, which can be used as functional bioresources.

본 연구에서는 현사시나무 추출물에 대한 일반성분, 무기질, 비타민, 유리당, 총 페놀과 총 플라보노이드 함량 및 HPLC을 이용하여 페놀성 화합물을 분석하였으며 DPPH, ABTS 라디칼 소거능을 통하여 추출물의 항산화 활성을 조사하였다. 추출물의 일반 성분 분석결과, 탄수화물, 수분, 조단백질, 회분, 조지방은 각각 88.6, 5.11, 2.5, 2.3, 1.5%로 확인되었다. 무기질 분석결과, Ca (77.5 mg/100 g), Mg (85.0 mg/100 g), Na (23.4 mg/100 g), K (907.5 mg/100 g), P (93.8 mg/100 g), Fe (1.4 mg/100 g), Zn (2.6 mg/100 g), Cu (0.6 mg/100 g), Mn (2.9 mg/100 g)을 함유하고 있었다. 비타민의 경우, vitamin C (6.1 mg/100 g), vitamin B2 (0.3 mg/100 g), vitamin B6 (0.01 mg/100 g), nicotinic acid (3.1 mg/100 g)가 확인되었다. 유리당 조성은 glucose 1.6%, fructose 2.2%였고 총 페놀 및 총 플라보노이드 함량은 각각 115.4±0.85 mg GAE/g, 20.9±1.14 mg QE/g으로 나타났다. HPLC 분석결과 catechin (9.1±0.27 mg/g), caffeic acid (4.1±0.57 mg/g), p-coumaric acid (2.1±0.47 mg/g), chlorogenic acid (1.6±0.86 mg/g), gallic acid (1.4±0.35 mg/g)가 주요 성분으로 확인되었다. 현사시나무 추출물은 DPPH 및 ABTS 라디칼 소거활성을 보였고 이는 추출물에 함유된 항산화성분에 기인한 것으로 판단되었다. 본 연구에서는 현 사시나무 추출물의 일반성분, 무기질, 비타민, 총 페놀 및 총 플라보노이드 함량, 주요 페놀성 화합물 및 항산화활성을 평가하였지만 향후 현사시나무 추출물이 식품소재 또는 건강기능식품 소재로서 활용 가치를 높이기 위해서는 세포 및 동물모델에서의 바이오마커 평가 및 작용기전 연구가 추가되어야 할 것으로 사료된다.

Keywords

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