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한국식품과학회지2021 ; 53(1): 55-62
| Comparison of antioxidant activities of sea buckthorn (Hippophae rhamnoides) leaf extracts at different ethanol ratios |
| 비타민나무(Sea Buckthorn, Hippophae rhamnoides) 잎 에탄올 농도별 추출물의 항산화활성 비교 |
| Min Gyu Park1 and Shin Youn Joo1,* |
| 1Department of Food Science and Nutrition, Daejin University |
| 박민규1 ·주신윤1,* |
| 1대진대학교 식품영양학과 |
| ABSTRACT |
| This study was conducted to investigate the potential of sea buckthorn leaf (SBL) as a natural antioxidant. SBL was extracted using different ethanol ratios (0, 40, 80, and 100%), and the resulting extracts were examined for their antioxidant contents and antioxidant activities using various methods. The 40% and 80% ethanol extracts (EEs) showed higher total polyphenol contents of 285.06 and 285.64 mg GAE/g respectively, than those in other solvents, and as the ethanol concentration increased, other antioxidant contents of the extracts increased. The 40% and 80% EEs recorded the highest radical scavenging activities against DPPH, superoxide−, ABTS+, nitrite scavenging activity (NO−), and reducing power (RP). The NO− and RP of the SBL EEs were higher than those of ascorbic acid or tannin, which are known as representative antioxidants. The results of this study, suggest that SBL is a potential source of natural antioxidants. |
| KEYWORD |
| sea buckthorn leaf, antioxidant content, antioxidant activity, DPPH radical scavenging activity, ABTS+ radical scavenging activity |
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한국식품과학회지 2021 Feb; 53(1): 55 - 62  |
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