빌레나무 추출물의 항산화, α-글루코시다아제 억제 및 항미생물 활성
Antioxidant, α-Glucosidase Inhibitory and Antimicrobial Activities of Extracts from Maesa japonica (Thunb.)
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초록
Maesa japonica (Thunb.) is an evergreen shrub belonged to the Myrsinaceae family, which was discovered in2006 in South Korea. And, its biological functions have not been well studied. In this study, we determined the antioxidantactivities, α-glucosidase inhibitory effects and antimicrobial activities of methanol extract and the solvent fractions of M. japonica leaves and twigs. The highest antioxidant activity obtained by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavengingassay and reducing power assay was found in the ethylacetate fraction of twigs methanol extract, which contained thehighest level of total phenolic compounds compared to the other fractions. In addition, ethylacetate fraction of twigs extractexhibited higher inhibitory activities against α-glucosidase (IC50 = 0.8 ㎍/㎖) compared to the IC50 of the buthanol fraction(IC50 = 16 ㎍/㎖) of leaves extract. It showed antimicrobial activities against Bacillus atrophaeus and Bacillus subtilis subsp. Spizizenii. Although the data is too limited, the current study is the first report on biological functions of M. japonica.
Abstract
Maesa japonica (Thunb.) is an evergreen shrub belonged to the Myrsinaceae family, which was discovered in2006 in South Korea. And, its biological functions have not been well studied. In this study, we determined the antioxidantactivities, α-glucosidase inhibitory effects and antimicrobial activities of methanol extract and the solvent fractions of M. japonica leaves and twigs. The highest antioxidant activity obtained by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavengingassay and reducing power assay was found in the ethylacetate fraction of twigs methanol extract, which contained thehighest level of total phenolic compounds compared to the other fractions. In addition, ethylacetate fraction of twigs extractexhibited higher inhibitory activities against α-glucosidase (IC50 = 0.8 ㎍/㎖) compared to the IC50 of the buthanol fraction(IC50 = 16 ㎍/㎖) of leaves extract. It showed antimicrobial activities against Bacillus atrophaeus and Bacillus subtilis subsp. Spizizenii. Although the data is too limited, the current study is the first report on biological functions of M. japonica.
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