黄连木籽油的超声波辅助提取工艺及油品组成分析_范雪层 . Ultrasound- Assistant Extraction Technology for Pistacia chinensis Bunge Seed Oil and Analysis of Fatty Acids

Abstract

With pistacia chinensis bunge seeds as raw material,the ultrasound-assistant extraction technology was used to extract the seed oil.The effects of solid/liquid ratio,extraction temperature and time,ultrasonic frequency were discussed by means of single-factor and orthogonal designed experiments,and the optimum technical condition was obtained.The application of gas chromatography(GC) was employed to analyze the fatty acid components of the seed oil.Results indicate that the impact order of the influence factors is solid/liquid ratioreaction timereaction temperatureultrasonic frequency.The optimum parameters are solid/liquid ratio 1∶10(g/mL),reaction temperature 30 ℃,reaction time 30 min,and ultrasonic frequency 40 kHz,and the oil yield under the optimum condition can reach as high as 35.96 %.The fatty acid components of pistacia chinensis bge seed oil are oleic acid 47.59 %,linoleic acid 32.35 %,palmitic acid 18.55 %,linolenic acid 0.9834 %,and hexadecylenic acid 0.5305 %.