RAPID DETERMINATION OF TOTAL VITAMIN E IN LYCOPENE OLEORESIN BY SOLID PHASE EXTRACTION AND HIGH PERFORMANCE LIQUID CHROMATOGRAPHY / 营养学报

Objective:To establish a rapid determination method of total VE in lycopene oleoresin.Method:By eliminating saponifiable matters and strong polar materials from the sample,VE was concentrated efficiently by PRP-6 SPE with 90% ethanol/water and 100% ethanol as elution solvents consecutively.The removal of polar materials was satisfactory.VE was determined by HPLC.Results:The linear regression was carried out,the relative coefficient r=0.9998 and 99.85～99.95 % recovery of VE were achieved.Conclusion:A simple and rapid VE determination method with good sensitivity is developed.