myrtillus越桔
欧洲越橘
越桔
化学
环烯醚萜
植物
糖苷
杜鹃花科
食品科学
立体化学
生物
作者
Peter Heffels,Laura Müller,Andreas Schieber,Fabian Weber
标识
DOI:10.1016/j.foodres.2016.11.018
摘要
The iridoid profile of four Vaccinium species was investigated using UHPLC-MS to obtain further information about this group of species for phytochemical characterization. Fruits of bog bilberry (Vaccinium uliginosum L.) showed 14 different iridoid glycosides with a total amount of 20 mg/kg fresh weight (FW), whereas bilberry (Vaccinium myrtillus L.) contained 11 iridoid glycosides and a total amount of 127 mg/kg FW. Highbush blueberry (Vaccinium corymbosum L.) and lowbush blueberry (Vaccinium angustifolium L.) contained none of the investigated iridoid glycosides. Among the different iridoids, the isomers scandoside and deacetylasperulosidic acid as well as a dihydro derivative thereof were described for the first time in the Ericaceae family. The p-coumaroyl isomers of scandoside, deacetylasperulosidic acid and dihydromonotropein are reported for the first time in V. myrtillus and V. uliginosum. Monotropein and its p-coumaroyl isomers were found for the first time in V. uliginosum. The comparison of iridoid profiles in bilberry fruit and juice samples revealed constant proportions throughout the juice processing. Quantification and profile determination of iridoids may be used for species differentiation and thus for authentication purposes.
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