摘要 : Five mandelonitrile glycosides were detected in the glycosidic fraction isolated from fruits of several edible Passiflora species using GC/EI-MS or GC/NCI-MS of trifluoroacetylated derivatives. Reasons for the possible co-occurren... 展开 Five mandelonitrile glycosides were detected in the glycosidic fraction isolated from fruits of several edible Passiflora species using GC/EI-MS or GC/NCI-MS of trifluoroacetylated derivatives. Reasons for the possible co-occurrence of prunasin andsambunigrin in passion fruit juice and peel are given, and amygdalin is reported for the first time as a passion fruit component. Two mandelonitrile rhamnopyranosyl beta-D-glucopyranosides were tentatively identified by MS. The extraction of cyanoglycosides using Amberlite XAD-2 followed by GC analysis of TFA derivatives was found to be an efficient method for their rapid determination. Prunasin was the most important cyanogenic glycoside in peel (285 mg/kg for P. edulis f. flavicarpa), whereas amygdalin (31 mg/kg for P. edulis) and the 2 compounds tentatively identified as mandelonitrile rhamnopyranosyl beta-D-glucopyranosides were mostly found in the juice (99 mg/kg for P. edulis f. flavicarpa). Different amounts of sambunigrin were found in the juice and the peel (from 0.4 mg/kg in P. edulis juice to 15.5 mg/kg in P. edulis f. flavicarpa peel). Only low levels of cyanogenesis were detected in P. ligularis and P. mollissima. 收起