Abstract:
To study the microwave-assisted extraction technology and component analysis of Cornus officinalis seed oil, the best extraction parameters were obtained with response surface methodology (RSM), and the fatty acid composition and polyphenol content were analyzed with GC-MS and spectrophotometry. Meanwhile，a better predicted model equation was established for the results of the experiment. According to this equation, the microwave-assisted extraction parameters were optimized, and the optimal technology parameters as follows were obtained: microwave power, 640 W; extraction time, 13 min; and solvent to sample ratio, 12∶1 (mL/g). Under these conditions, the extraction yield of Cornus officinalis seed oil was 10.18%. In total, 14 kinds of chemical components were identified, the main fatty acids in the oil are oleic (61.62%), stearic acid (21.99%), palmitic acid (7.54%), linoleic acids (4.31%) and so on. The content of unsaturated fatty acids in total fatty acids is 67.05%. In addition, the content of polyphenon as gallic acid in the oil is 0.42 mg/g.
