Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Physiological Activity of Five Kinds of Medicinal Plant Extracts with Various Solvents and Their Composites

약용식물 5종의 용매별 추출물 및 조성물의 생리활성

  • Received : 2017.09.29
  • Accepted : 2018.03.08
  • Published : 2018.03.30
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Abstract

This study was performed to investigate the antioxidative activity of solvent (water, 50% ethanol, and 100% ethanol) extracts from five kinds of medicinal herbs Cutellaria baicalensis Georgi; SB, Paeonia lactiflora Pall.; PA, Salvia miltiorrhiza Bunge; SM, Phellinus linteus; PH, Morus alba L.; MA). The total content of phenolic compounds was highest in the 50% ethanol extract from PH (280.05 mg/g), the 100% ethanol extract from PH (308.88 mg/g), and the water extract from SM (80.27 mg/g). The total content of flavonoids was highest in the 50% ethanol extract from SB (62.71 mg/ml), the 100% ethanol extract from SB (64.59 mg/ml), and the water extract from SM (35.85 mg/ml). ACE inhibitory activity only occurred in the water extracts, and it was highest in the water extract from SB (45.33%). Cholesterol adsorption activity was higher in the SB and PA extracts than in the other extracts. In water extracts, SM showed the highest antioxidative activity. Among the 50% and 100% ethanol extracts, DPPH radical scavenging activity and FRAP were highest in the PH extract, and ABTS radical scavenging activity was significantly higher in the PA extracts. Seven types of compositions were prepared with different mixing ratios of 0.2 to 2.0 from relatively high-activity medicinal herbs, such as PH, SM and PA. The total phenolic and flavonoid compound contents of the compositions were 50.53-61.96 and 16.91-33.81 mg/ml, respectively. Cholesterol adsorption activity was 46.27-70.03%.

본 연구에서는 5종의 약용식물(황금, 작약, 단삼, 상황버섯, 뽕잎)를 물, 50% 및 100% 주정으로 추출하여 항산화 활성, ACE 저해활성 및 콜레스테롤 흡착활성을 비교하였다. 그 중 상대적으로 활성이 우수한 작약, 상황버섯, 단삼을 0.2~2.0의 비율로 혼합한 조성물 7종의 활성을 검증함으로써 약용식물 조성물을 활용한 음료 개발시 기초 자료로 활용하고자 하였다. 약용식물 5종의 총 페놀화합물 함량은 물 추출물 중에서는 단삼 추출물이 80.27 mg/g으로 가장 높은 함량이었으며, 50% 및 100% 주정 추출물에서는 상황버섯이 각각 280.05 및 306.88 mg/g으로 가장 높았다. 플라보노이드 화합물도 단삼 추출물이 35.83 mg/g으로 물 추출물 중 가장 높았으며, 50% 및 100% 주정 추출물은 황금 추출물이 각각 62.71 및 64.59 mg/g으로 가장 높게 정량되었다. ACE 저해활성은 물 추출물에서만 활성이 있었는데, 황금 추출물에서 45.33%로 가장 활성이 높았다. 콜레스테롤 흡착능은 작약 물 추출물과 황금 100% 주정 추출물이 타 시료에 비해 유의적으로 활성이 높았다. DPPH와 ABTS 라디칼 소거활성 및 FRAP 활성을 통해 항산화 활성을 측정한 결과 물 추출물 중에서는 단삼 추출물의 활성이 가장 높았고, 50% 및 100% 주정 추출물의 경우 DPPH 라디칼 소거활성 및 FRAP는 상황버섯 추출물의 활성이 가장 높았고, ABTS 라디칼 소거활성은 작약 추출물에서 활성이 가장 높았다. 상황버섯, 작약 및 단삼 물 추출물의 혼합 비율을 달리하여 제조한 조성물 7종의 총 페놀 및 플라보노이드 화합물 함량은 각각 50.53~61.96 mg/g 및 16.91~33.84 mg/g의 범위였는데 단삼의 비율이 높은 시료에서 더 함량이 높았고, 콜레스테롤 흡착능은 46.27~70.03%로 작약 첨가 비율이 높은 시료에서 활성이 더 높았다. 항산화 활성도 단삼의 혼합 비율이 높을수록 더 높았는데, 항산화 활성과 콜레스테롤 흡착활성은 동일한 경향을 보이지 않아 조성물 제조시는 목표로 하는 활성에 따라서 조성물의 비율을 달리하는 것이 바람직할 것으로 판단된다.

Keywords

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