TAILIEUCHUNG - Flavonoids from Alpinia vietnamica, and their cytotoxic, antioxidative, and α-glucosidase inhibitory activities

Alpinia vietnamica . Tran, Luu & Skornick was identified as a new species in 2019, which is widely distributed in Thua Thien Hue, Quang Nam, and Kon Tum provinces, Vietnam. The current study wishes to report phytochemical investigation, and the biological activities (cytotoxic, antioxidative, and α-glucosidase inhibitory) of isolated compounds. | Received 25 May 2023 Revised 7 August 2023 Accepted 14 August 2023 DOI RESEARCH ARTICLE Flavonoids from Alpinia vietnamica and their cytotoxic antioxidative and α-glucosidase inhibitory activities Nguyen Thanh Tra1 2 Nguyen Thi Thuy Hoa2 Nguyen Thi Thuy Linh1 Nguyen Thi Thu Ha1 2 Ba Thi Cham1 Le Thi Tu Anh1 Ninh The Son1 2 1 Institute of Chemistry Vietnam Academy Science and Technology VAST Cau Giay Hanoi Abstract Vietnam Phytochemical research of the 80 EtOH whole plant extract of Alpinia 2 Graduate University of Science and Technology vietnamica . Tran Luu amp Skornick resulted in the isolation and structural Vietnam Academy Science and Technology elucidation of seven compounds 1 7 including two flavones quercetin-3-O- VAST Cau Giay Hanoi Vietnam α-L-rhamnosyl 1 2 -α-L-rhamnoside 1 and diosmetin 2 three flavanones Correspondence pinocembrin 3 alpinetin 4 and 5-O-methylnaringenin 5 and two chalcones Ninh The Son Institute of Chemistry Vietnam cardamonin 6 and helichrysetin 7 . The isolated compounds have shown bio- Academy Science and Technology VAST 18 logical effects at different levels. Two chalcones 6 7 showed cytotoxicity toward Hoang Quoc Viet Cau Giay Hanoi 10000 Vietnam. four cancer cell lines KB MCF7 A549 and HepG2 especially compound 7 strongly Email ntson@ inhibited the growth of A549 cancerous cells with the IC50 of μM. Flavone 1 strongly exhibited antioxidative activity to scavenge DPPH radicals with the IC50 of Funding information μM. Flavone 2 and flavanone 4 moderately inhibited enzyme α-glucosidase Vietnam Academy Science and Technology with the IC50 values of μM. Grant Award Number 22-23 KEYWORDS Alpinia vietnamica antioxidant cytotoxicity flavonoids rhizome α-glucosidase inhibitory 1 INTRODUCTION The current study wishes to report phytochem- ical investigation and the biological activities cytotoxic Alpinia is a genus of 230 flowering plants in the ginger .

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