Flavonoids of some dilleniaceae species

Dilleniaspecies: A review of the traditional uses, active constituents and pharmacological properties from pre-clinical studies

“…Banerji et al (1975) have successfully identified and confirmed the presence of betulinaldehyde, betulin, lupeol, sitosterol, betulinic acid, and flavonol myricetin from the stem bark of D. indica. The presence of betulinic acid in the D. indica extracts has been also reported previously (Kumar et al, 2010;Pavanasasivam & Sultanbawa, 1974). Betulinic acid was distributed in the bark, timber, pericarp (Pavanasasivam & Sultanbawa, 1974) and fruit (Kumar et al, 2010), with the greatest amount in the pericarp (Pavanasasivam & Sultanbawa, 1974).…”

“…The presence of betulinic acid in the D. indica extracts has been also reported previously (Kumar et al, 2010;Pavanasasivam & Sultanbawa, 1974). Betulinic acid was distributed in the bark, timber, pericarp (Pavanasasivam & Sultanbawa, 1974) and fruit (Kumar et al, 2010), with the greatest amount in the pericarp (Pavanasasivam & Sultanbawa, 1974). In addition, based on the spectroscopy data and characteristic reaction including positive Liebermann-Burchard and Zimmerman's test, a new hydroxylactone was isolated and identified as 3b-hydroxylupane-13b-28-lactone (Banerji et al, 1975).…”

“…In addition, based on the spectroscopy data and characteristic reaction including positive Liebermann-Burchard and Zimmerman's test, a new hydroxylactone was isolated and identified as 3b-hydroxylupane-13b-28-lactone (Banerji et al, 1975). Flavonoids such as kaempherol, quercetin, naringenin, isohamnetin, dihydrokaempherol, dillenetin, sitosterol, and gallic acid have also been identified in the ethanol extract of bark, wood, and pericarp of D. indica (Pavanasasivam & Sultanbawa, 1974). Nick et al (1994) have successfully isolated and elucidated the structure of the oleanene-type triterpenoid acids from the aerial part of D. papuana, namely, 2a-hydroxy-3-oxoolean-12-en-30-oic acid, 2-oxo-3 beta-hydroxyolean-12-en-30-oic acid, 1a-hydroxy-3-oxoolean-12-en-30-oic acid, 3-oxoolean-1, 12-dien-30-oic acid, and dillenic acid (A, B, and C).…”

“…reported the presence of flavonoids including quercetin, kaempherol, quercetin-3-galactoside, kaempherol 3-glucuronide and procyanidin in the D. retusa extracts. Other than that, flavonoids such as naringenin, gallic acid, sitosterol, dihyroquercetin, and dillenetin in the ethanol extract of bark and wood of D. retusa have been identified (Pavanasasivam & Sultanbawa, 1974). showed the presence of kaempferol 3,7-disulfate in the ethanol extract of D. bracteata leaves.…”

Microscopic evaluation and physiochemical analysis of Dillenia indica leaf

“…Phytochemical studies have shown the presence of the lupeol group of triperpene like betulinic acid and betulin and flavonol such as myricetin. Flavonoids such as kaempferol, quercetin, isorhamnetin, naringenin, and phenolic materials are also present [6,7] . Four compounds namely, lupeol, betulinaldehyde, betulinic acid and stigmasterol can be isolated from the stem extract of the plant [8] .…”