Pelargonidin glucoside

Hosokawa, K. et al., Five acylated pelargonidin glucosides in the red flowers of Hyacinthus orientalis. Phytochemistry, 40, 567, 1995. 

Saito, N. et al., Acylated pelargonidin glucosides in the maroon flowers of Pharbitis nil. 

Fossen, T., Rayyan, S., and Andersen, 0.M., Dimeric anthocyanins from strawberry (Fragaria ananassa) consisting of pelargonidin 3-glucoside covalently linked to four flavan-3-ols. Phytochemistry, 65, 1421, 2004. 

Fig. 4.2 HPLC-DAD chromatograms of anthocyanins from soluble and insoluble extracts of black, red-brown, and brown soybean seed coats at 520 nm. (a, d) Black (Clark), (b, e) red-brown (Mil), and (c, f) brown (MlOO) seed coats, (a and b) Pulverized fresh seed coats extracted with 80% methanol in water, (d-f) Insoluble pulverized seed coat fraction extracted with 1-butanol/HCl (19 1) 1% SDS. Compound identifications were based on comparison of retention times and absorption spectra to authentic standards. Peak 1, unknown peak 2, delphinidin-3-O-galactoside peak 3, delphinidin-3-O-glucoside peak 4, cyanidin-3-O-galactoside peak 5, cyanidin-3-O-glucoside peak 6, petunidin-3-O-glucoside peak 7, pelargonidin-3-O-glucoside peak 8, peonidin-3-O-glucoside and peak 9, malvidin-3-O-glucoside...

Two classes of dimeric anthocyanins isolated from plants (section 10.2.6) have been identified in plants for the first time. One class includes pigments where an anthocyanin and a flavone or flavonol are linked to each end of a dicarboxylic acyl unit. The other class includes four different catechins linked covalently to pelargonidin 3-glucoside. During the last decade, seven new desoxyanthocyanidins and a novel type of anthocyanidin called P)Tanoanthocyanidins have been reported (Section 10.2.2). Toward the end of the 20th century, several color-stable 4-substituted anthocyanins, pyranoanthocyanins, were discovered in small amounts in red wine and grape pomace.Recently, similar compounds have been isolated from extracts of petals of Rosa hybrida cv. M me Violet, scales of red onion, and strawberries. About 94% of the new anthocyanins in the period of this review are based on only six anthocyanidins (Table 10.2). 

From species in Labiatae, the 3-[6-(p-coumaryl)glucoside]-5-[4,6-di-(malonyl)glucoside] of cyanidin, delphinidin, and pelargonidin, and the 3-[6-(caffeyl)glucoside]-5-[4,6-di-(malonyl)glucoside] of the two latter anthocyanidins have been reported.The location of malonyl to the glucose 4-position has also been reported for cyanidin 3-[4-(malonyl)-... 

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