Abstract: The effects of fresh, dry-drying, microwave drying equipment, blast drying and vacuum freeze-drying on the yield and composition of the essential oils of Chinese bayberry leaves were compared and analyzed. The essential oil of Chinese bayberry leaves was extracted by steam distillation, and the components of the obtained essential oils were separated and identified by GC-MS.
The results showed that different treatment methods had a great influence on the yield and composition of essential oil of bayberry leaf. The yield of essential oil was fresh leaf < microwave drying < natural dry < blast drying < vacuum freeze drying. The essential oils obtained by the five treatment methods identified 33, 43, 42, 39, and 41 compounds, respectively, accounting for 96% of the total. 45%, 96. 1%, 97. 38%, 97. 28%, 68. 03%, both cis-4-cyclopentene-1,3-diol, α-rhedene, ( + ) - 4 -heptenol, transcaryophyllene, epoxidized hopene II, Dianthus Mainly based.
没有评论:
发表评论