IDENTIFICATION AND QUANTITATION OF GAMMA-ORYZANOL COMPONENTS AND SIMULTANEOUS ASSESSMENT OF TOCOLS IN RICE BRAN OIL

被引:199
作者
ROGERS, EJ
RICE, SM
NICOLOSI, RJ
CARPENTER, DR
MCCLELLAND, CA
ROMANCZYK, LJ
机构
[1] UNIV MASSACHUSETTS LOWELL,DEPT CLIN LAB SCI,CARDIOVASC RES LAB,WEED HALL ROLFE ST,LOWELL,MA 01854
[2] MARS,M&M,HACKETTSTOWN,NJ 07840
关键词
CHEMICAL IONIZATION; CHOLESTEROL; DIODE ARRAY; FERULIC ACID ESTERS; GAMMA-ORYZANOL; HPLC; MASS SPECTROMETRY; RICE BRAN OIL; TOCOPHEROL; TOCOTRIENOL;
D O I
10.1007/BF02545312
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A reverse-phase high-performance liquid chromatography method was developed for the simultaneous separation and quantitation of tocopherols, tocotrienols and oryzanols present in rice bran oil. Tocopherols and tocotrienols were quantitated by fluorescence detection and oryzanols (ferulic acid esters of sterols and triterpene alcohols) by photodiode array detection. Chemical ionization mass spectrometry was used to identify cycloartenyl ferulate, 24-methylene cycloartanyl ferulate, campesteryl ferulate, beta-sitosteryl ferulate and cycloartanyl ferulate as the major oryzanols separated by this procedure. The levels of these nutritionally significant components were found to vary in fully processed, edible rice bran oils from different manufacturers.
引用
收藏
页码:301 / 307
页数:7
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