白碧桃挥发性成分的快速分析(英文)

Rapid Determination of Volatile Constituents from the Buds and Flowers of Prunus persica (L.) Batsch.f.alboplena Schneid

首次采用顶空固相微萃取结合气质联用技术提取并分析了白碧桃花蕾和花的挥发性成分。分别从白碧桃花蕾和花中鉴定了19和21个化合物。结果发现,油酸-2羟-基乙酯在花蕾中的含量高达43.62%,且仅存在于花蕾中;油酸在花蕾中的含量仅为2.65%,而在花中则高达58.69%,这表明在白碧桃花蕾开放的过程中,油酸-2羟-基乙酯被其体内的水解酶逐渐水解成油酸。

Volatiles from the buds and flowers of Prunus persica （ L. ） Batsch. f. alboplena Schneid grown in China were analyzed by GC-MS combined with solid-phase microextraction （SPME）. 19 compounds were identified in buds and 21 compounds were identified in flowers of P. persica （ L. ） Batsch. f. alboplena Schneid. It is interesting to note that （Z） -9- octadecenoic acid-2-hydroxyethyl ester （43.62%） was the main component in buds and octadec-9-enoic acid （2.65%） in buds was obviously increased to 58.69% in flowers, （Z） -9-octadecenoic acid-2-hydroxyethyl ester was not detected in flowers. It indicated that （Z） -9-octadecenoic acid-2-hydroxyethyl ester might be conversed to octadec-9-enoie acid with the buds blooming.