Extraction Process Optimization and Microemulsion Preparation from Torreya grandis Oil
In order to improve extraction rate of Torreya grandis oil and understand specific components of T. grandis oil, taking T. grandis as experimental materials, single factor experiment was designed to study ef-fects of solid to liquid ratio, ultrasonic power and ultrasonic time on extraction rate of T. grandis oil. Response surface method was used to optimize extraction process of T. grandis oil. Preparation process of microemulsion of T. grandis oil was determined by adding different surfactants and co-surfactants. Results showed that extrac-tion rate of T. grandis oil was 48.92％under conditions of ultrasonic time of 25 min, ultrasonic power of 352 W and solid to liquid ratio of 1∶15 g/mL. Results of GC-MS analysis showed that palmitoleic acid, stearic acid, oleic acid, linoleic acid, eicosadienoic acid and nervonic acid were dominant in T. grandis oil. Preparation pro-cess of microemulsion of T. grandis oil was based on T. grandis oil as oil phase, anhydrous ethanol as co-surfac-tant, PEG-40 and Tween-80 as surfactants, and mass ratio of anhydrous ethanol, PEG-40 and Tween-80 was 3∶1∶2.
ultrasonic extractionresponse surface methodpreparation process of microemulsionTorreya grandis oil
万方数据
维普
