Synchronous preparation method of cyclemedecenone and position isomer thereof in banana peel

The invention belongs to the technical field of methods for preparing natural active substances through plant extraction, and particularly relates to a synchronous preparation method of cyclemedecenone and a positional isomer of cyclemedecenone in banana peel. The preparation method provided by the invention comprises the following steps: S1, raw material pretreatment; S2, extraction; s3, separating for the first time; s4, carrying out secondary separation; s5, purifying for the first time; and S6, secondary purification. According to the synchronous preparation method of the cyclodecenone and the position isomer of the cyclodecenone, the high-purity cyclodecenone and the position isomer of the cyclodecenone can be prepared at the same time, the purity of the cyclodecenone and the position isomer of the cyclodecenone can reach 95% or above, and the preparation method is easy to operate, safe, convenient, low in cost, high in market application potential and suitable for popularization and application. And the