Process Optimization of Sunflower Seeds Oil by Enzyme-assisted Pressing

doi:10.7525/j.issn.1673-5102.2019.06.020

Abstract

Abstract: Sunflower seed is a kind of high quality oil resources and the fourth largest oil crop in the world. The sunflower seed oil contains 90% unsaturated fatty acids, vitamin E and carotene, which can delay aging, regulate metabolism and reduce cholesterol. Sunflower seeds oil is prepared by enzyme-assisted pressing method to enhance oil yield and retain the natural flavor of the oil. The effects of enzyme types, enzyme dose, pH, liquid-solid ratio, temperature and time on oil yield of sunflower seeds were studied by single factor experiment and finally the optimum technological conditions were determined. The test effect of cellulose was best and the results showed that the optimized conditions were cellulose dose of 0.7%, pH of 4.5, liquid-solid ratio of 25%, temperature of 55℃, and time of 2.5 h. Under the optimum condition, the oil yield of sunflower seed is 3.48 times higher than that by traditional cold pressing method with the oil extraction rate of 85%.

Key words: Enzyme, pressing, sunflower seeds oil

CLC Number:

S565.5

GUO Zi-Jing, ZHAO Xiu-Hua, ZU Yuan-Gang, WANG Si-Ying, LIU Pei-Yan. Process Optimization of Sunflower Seeds Oil by Enzyme-assisted Pressing[J]. Bulletin of Botanical Research, 2019, 39(6): 964-969.

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