The Structures of Camelliagenin A, B and C obtained from Camellia Japonica L.

Camellianoside, a Novel Antioxidant Glycoside from the Leaves ofCamellia japonica

“…Extensive studies have been made on the constituents of C. japonica, including those on saponins in fruits [1][2][3] and seeds, 4,5) and on triterpenes in flowers 6,7) and seed oil. 8) Regarding the bioactive constituents in leaves, saponins having antifungal activity or antifeedant activity toward yellow butterfly larvae [9][10][11] have been reported.…”

Isolation and identification of antioxidative phenolic acids and flavonoid glycosides from Camellia japonica flowers

“…Many studies have shown that C. japonica has anti-inflammatory (Akihisa et al, 1997), antiplaque (Namba et al, 1984), antimicrobial (Hahn, 2005;Lee et al, 2005), antioxidant (Lee et al, 2005), and anticancer (Kim et al, 2003) activities and that it is can inhibit the absorption of ethanol (Yoshikawa et al, 1994). The presence of chemical constituents such as terpenes (Ito et al, 1967;Itokawa et al, 1969Itokawa et al, , 1981, saponins (Numata et al, 1987;Yoshikawa et al, 1996), and phenolic compounds (Hatano et al, 1991;Nakagawa and Sakamoto, 1967;Onodera et al, 2006) in the fruits, seeds, flowers, and leaves of C. japonica has also been reported. Yoshikawa et al (2007) reported the structural determination of camelliosides from the flower buds of C. japonica and the camelliosides A and B were found to exert platelet aggregation activity and gastroprotective effects.…”

Triterpenoids from Camellia japonica and Their Cytotoxic Activity

“…The seeds of C. japonica have been used as a stomachic and anti-inflammatory in Chinese folk medicine and also as an oil material, 1) while the flowers and flower buds of this plant have been prescribed in Chinese traditional preparations for treatment of hematemesis and "Oketsu" syndrome (blood stagnation), blood vomiting and bleeding due to internal and external injury, and also as an anti-inflammatory, tonic, and stomachic. 1,2) Extensive studies have been made on the constituents of C. japonica, including those on saponins in fruits [3][4][5] and seeds, 1,6) on flavonol glycosides in leaves, 7) and on triterpenes in flowers 8) and seed oil. 9) Regarding the bioactive constituents in leaves, flavonol glycosides having antioxidant activity, 7) and saponins having antifungal activity or antifeedant activity toward yellow butterfly larvae [10][11][12] have been reported.…”