Abstract
The effects of four types of extraction methods on the yield and the quality of coix seed oil were investigated. The extraction yields (EYs) by these methods were: 3.43% (Microwave-assisted extraction, MAE); 2.13% (Ultrasound-assisted extraction, UAE); 1.72% (Aqueous enzymatic extraction, AEE) and 1.29% (Refluxing extraction, RE) respectively. Both the peroxide number and acid value by RE are the highest, while by other methods are almost the same.
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