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논문 기본 정보

자료유형
학술저널
저자정보
Moon Keumok (Microbiological Resource Research Institute Pusan National University Busan 46241 Republic of Korea) Lee Seola (Department of Microbiology Pusan National University Busan 46241 Republic of Korea) Park Hyunsu (Department of Microbiology Pusan National University Busan 46241 Republic of Korea) 차재호 (부산대학교)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제31권 제12호
발행연도
2021.12
수록면
1,692 - 1,700 (9page)
DOI
10.4014/jmb.2108.08034

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Glycosylation of resveratrol was carried out by using the amylosucrase of Deinococcus geothermalis, and the glycosylated products were tested for their solubility, chemical stability, and biological activities. We synthesized and identified these two major glycosylated products as resveratrol-4′-O- α-glucoside and resveratrol-3-O-α-glucoside by nuclear magnetic resonance analysis with a ratio of 5:1. The water solubilities of the two resveratrol-α-glucoside isomers (α-piceid isomers) were approximately 3.6 and 13.5 times higher than that of β-piceid and resveratrol, respectively, and they were also highly stable in buffered solutions. The antioxidant activity of the α-piceid isomers, examined by radical scavenging capability, showed it to be initially lower than that of resveratrol, but as time passed, the α-piceid isomers’ activity reached a level similar to that of resveratrol. The α- piceid isomers also showed better inhibitory activity against tyrosinase and melanin synthesis in B16F10 melanoma cells than β-piceid. The cellular uptake of the α-piceid isomers, which was assessed by ultra-performance liquid chromatography (UPLC) analysis of the cell-free extracts of B16F10 melanoma cells, demonstrated that the glycosylated form of resveratrol was gradually converted to resveratrol inside the cells. These results indicate that the enzymatic glycosylation of resveratrol could be a useful method for enhancing the bioavailability of resveratrol.

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