Hong Van Thi Nguyen, Bach Cao Pham, Inh Thi Cam, Phuong Lan Doan, Thanh Tat Le, Toan Quoc Tran, Long Quoc Pham


Camellia chrysantha (the golden camellia, golden tea) is a species of evergreen shrub or small tree belonging to the family Theaceae. The flowers and the leaves of this plant are used as tea and drank for its health benefits. The aim of this study was to investigate the chemical constituents of the flowers of Camellia chrysantha. Five flavonoids were isolated from the flowers of Camellia chrysantha (Theaceae), including (+)-catechin (1), (-)-epicatechin (2), quercetin (3), quercetin-3-O-methyl ether (4) and kaempferol (5). Their chemical structures were elucidated by spectroscopic data analysis and by comparison with those reported in the literature. Among five compounds, compounds 4 was isolated for the first time from this species.


Camellia chrysantha, Theaceae, catechin, epicatechin, quercetin, quercetin-3-O-methyl ether, kaempferol.


https://en.wikipedia.org/wiki/Camellia chrysantha

The IUCN Red List of Threatened Species – Camellia chrysantha, 2018-1

Nguyen Thi Hong Van, Cam Thi Inh, Pham Cao Bach, Tran Thi Tuyen, Nguyen Thi Thanh, Nguyen Huong Quynh, Pham Quoc Long – Flavonoid glycosides isolated from the flowers of Camellia chrysantha, Journal of Chemistry 56 (3) (2018) 335-340.

M.A. Hye, M.A. Taher, M.Y. Ali, M.U. Ali, Shahed Zaman – Isolation of (+)-catechin from Acacia catechu (Cutch tree) by a convenient method, Journal of Scientific Research 1 (2) (2009) 300-305.

Huang Q., Wu LJ., Tashiro S., Gao HY, Onodera S. Ikejima T. – (+)-Catechin, an ingredient of green tea, protects murine microglia from oxidative stress-induced DNA damage and cell cycle arrest, J. Pharmacol. Sci. 98 (1) (2005) 16-24.

Syed Hussein SS., Kamarudin MN., Kadir HA. – (+)-Catechin attenuates NF-kB activation through regulation of Akt, MAPK, and AMPK signaling pathways in LPS-induced BV-2 mcroglial cells, Am. J. Chin. Med. 43 (5) (2015) 927-952.

Gomes FMS., da Cunha Xavier J., Dos Santis JF., de Matos YMLS, Tintino SR., de Freitas TS., Coutinho HDM. – Evaluation of antibacterial and modifying action of catechin antibiotics in resistant strains, Microb. Pathog. 115 (2018) 175-178.

Xie H., Li X., Ren Z., Qiu W., Chen J., Jiang Q., Chen B., Chen D. – Antioxidant and cytoprotective effects of tibetan tea and its phenolic components, Molecules 23 (2) (2018) doi: 10.3390/molecules23020179.

Chen-Chang Shen, Yuan-Shiun Chang, Likang Hots – Nuclear magnetic resonance studies of 5,7-dihydroxyflavonoids, Phytochemistry 34 (3) (1993) 843-845.

Adrienne L. Davis, Ya Cai, Alan P. Davies, J.R. Lewis – 1H and 13C-NMR assignments of some green tea polyphenols, Megnetic resonance in chemistry, 34 (1996) 887-890.

Reygaert WC. – The antimicrobial possibilities of green tea, Front. Microbiol., 5 (2014) 434-438.

Bettaieb A., Cremonini E., Kang H., Kang J., Haj FG., Oteiza PI. - Anti-inflammatory actions of (-)-epicatechin in the adipose tissue of obese mice, Int. Biochem. Cell Biol. 81 (Pt B) (2016) 383-392.

Scott BC., Butler J, Halliwell B, Aruoma OI. - Evaluation of the antioxidant actions of ferulic acid and catechins, Free Radic. Res. Commun. 19 (4) (1993) 241-53.

Dorothee Alfonso, Ilias Kapetanidis – Flavonoids from Iochroma gesnerioides, Pharmaceutica Acta Helvetiae 68 (1994) 211-214.

Smolarz HD., Surdacka A, Roliński J. - Influence of ethyl acetate extract and quercetin-3-methyl ether from Polygonum amphibium on activation lymphocytes from peripheral blood of healthy donor in vitro, Phytother Res. 17 (7) (2003) 744-747.

DOI: https://doi.org/10.15625/2525-2518/57/3/13119


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