Optimal Process of Extracting Loquat Seed Oil Assisted by Ultrasonic Wave
The optimal process of extracting loquat seed oil assisted by ultrasonic wave was studied in this paper,and main factors influencing extraction efficiency was discussed based on orthogonal test.The results showed that the important order of factors influencing extraction ratio of loquat seed oil:ratio of material and solution ＞ ultrasonic temperature ＞ ultrasonic power,and the best extraction conditions:the petroleum ether serving as extraction solvent,ratio of raw material and solution being 1∶5 (g∶ mL),ultrasonic temperature being 60 ℃,ultrasonic time being 25 min,ultrasonic power being 180 W,and extraction ratio of loquat seed oil could reach 12.8％,The fatty acid of loquat seed oil was mainly consisted of palmitic acid and unsaturated fatty acids,and the latter accounted for 72.7％,especially linoleic acid accounted for 58.8％ with higher value of health care.
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