Abstract:

Technology optimization for extracting essential oil from flos lonicera by homogenate extraction and its application in cigarette. The homogenate extraction technique of essential oil from flos lonicera was analyzed and optimized by response surface method．Extracting voltage, extracting time and the ratio of liquid to solid were selected as causal factors. Base on the single factor experiments, a three-factor-three-level experiment design had been developed by Box-Benhken central composite design method. The yield of essential oil was used as the responsive values. The response surface method was employed to analyze the results of experiments. The oil was added into cigarettes as a flavor. The results indicated that the optimum conditions for essential oil are as follows, extracting voltage of 151.61 V, extracting time of 15.16 s and the ratio of liquid to solid of 9.77:1. Under such conditions, the extraction rate of essential oil was up to 0.1756%. The optimized model by RSM accords with the practice. The essential oil of different concentration was added to cigarette and tasted. The results showed that the essential oil can significantly reduce the harshness, augment the faint fragrance, and improve the taste of cigarette smoke. The experimental values agreed with the predicted values．Homogenate extraction was proved to be a kind of efficient and rapid method for extraction of the essential oil from flos lonicera. The essential oil of flos lonicera can be used as a cigarette flavoring.