Analysis of Ultrasonic Extraction and Fatty Acid Composition of Mayang Citrus sinensis Seed Oil
In this paper,increase of value of Citrus sinensis was taken as the target,and the oil yield of Citrus sinensis seeds was taken as an indicator,the orthogonal test optimized ultrasonic wave was applied to support the ex-traction process of Citrus sinensis seed oil,national standard methods were adopted to test the physical and chemical properties of Citrus Cinensis,and GC-MS wasused to analyze its fatty acid composition.The results indicated the maximum oil yield of Citrus sinensis seeds could reached 32.49％under the conditions of the ultrasonic time of 12 min,the ultrasonic temperature of 55 ℃,and the material liquid ratio of 1∶10.The color of seed oil of Citrus sinensis was yellow green,with a peroxide value of 5.24 mmol/kg,an acid value of 0.85 mg KOH/g,a relative density(d20)of 0.934,an iodine value of 103 g 1/100 g,and a refractive index of 1.474 5.There were six fatty acids in Citrus sinensis seed oil,including palmitic acid 24.46％,stearic acid 5.58％,oleic acid 25.97％,linoleic acid 40.40％,linolenic acid 3.16％,and arachidic acid 0.43％.
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