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논문 기본 정보

자료유형
학술저널
저자정보
Cong Pham Van (Graduate University of Science and Technology VAST Hanoi 122000 VietnamCenter for Research and Technology Transfer (CRTT) Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet Hanoi 1000) Anh Hoang Le Tuan (Center for Research and Technology Transfer (CRTT) Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet Hanoi 100000 VietnamGraduate University of Science and Technology VAST Hanoi 1220) Vinh Le Ba (College of Pharmacy Korea University Sejong 30019 Republic of KoreaInstitute of Marine Biochemistry VAST Hanoi 122000 Vietnam) Han Yoo Kyong (College of Pharmacy Korea University Sejong 30019 Republic of Korea) Trung Nguyen Quang (Center for Research and Technology Transfer (CRTT) Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet Hanoi 100000 Vietnam) Minh Bui Quang (Center for Research and Technology Transfer (CRTT) Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet Hanoi 100000 Vietnam) Duc Ngo Viet (Center for Research and Technology Transfer (CRTT) Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet Hanoi 100000 Vietnam) Ngoc Tran Minh (Traditional Medicine Administration Ministry of Health 138 Giang Vo Ba Dinh Hanoi 100000 Vietnam) Hien Nguyen Thi Thu (Hanoi University of Mining and Geology Pho Vien Duc Thang Bac Tu Liem Hanoi 129000 Vietnam) Manh Hoang Duc (National Institute of Medicinal Materials (NIMM) 3B Quang Trung Hoan Kiem Hanoi 12100 Vietnam) Lien Le Thi (Mientrung Institute for Scientific Research VAST Huynh Thuc Khang Thua Thien Hue 52000 Vietnam) Lee Ki Yong (College of Pharmacy Korea University Sejong 30019 Republic of Korea)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제33권 제6호
발행연도
2023.6
수록면
797 - 805 (9page)
DOI
10.4014/jmb.2212.12040

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Species belonging to the Vernonia (Asteraceae), the largest genus in the tribe Vernonieae (consisting of about 1,000 species), are widely used in food and medicine. These plants are rich sources of bioactive sesquiterpene lactones and steroid saponins, likely including many as yet undiscovered chemical components. A phytochemical investigation resulted in the separation of three new stigmastane-type steroidal saponins (1 – 3), designated as vernogratiosides A–C, from whole plants of V. gratiosa. Their structures were elucidated based on infrared spectroscopy  (IR), one-dimensional (1D) and two-dimensional nuclear magnetic resonance (2D NMR), high-resolution electrospray ionization mass spectrometry (HR-ESI-MS), and electronic circular dichroism analyses (ECD), as well as chemical reactivity. Molecular docking analysis of representative saponins with αglucosidase inhibitory activity was performed. Additionally, the intended substances were tested for their ability to inhibit α-glucosidase activity in a laboratory setting. The results suggested that stigmastane-type steroidal saponins from V. gratiosa are promising candidate antidiabetic agents.

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