Effect of Supercritical CO2 on Extraction and Antioxidant Activity of Hipphophae rhamnoides Fruit Oil
In order to obtain green,safe,and high antioxidant activity Hipphophae rhamnoides fruit oil,this article uses supercritical CO2 extraction method to extract Hipphophae rhamnoides fruit oil,and analyzes the effects of different extraction conditions on the polyphenol content and antioxidant properties of Hipphophae rhamnoides fruit oil.The results showed that under extraction conditions of 35℃and 25 MPa,the total phenolic content of Hipphophae rhamnoides fruit oil was the highest,reaching 7.74 μg·g-1.At a concentration of 20 mg·mL-1,Hipphophae rhamnoides fruit oil had the highest DPPH free radical scavenging rate,which was 97.50%.ABTS free radical scavenging ability was higher,with a TEAC value of 1.93 mmol·g-1.Taking all factors into consideration,the process conditions for supercritical CO2 extraction of Hipphophae rhamnoides fruit oil are 35℃and 25 MPa.
Hipphophae rhamnoides fruit oilsupercritical CO2 extractionantioxidant activity
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