title: Chromatographic analyses of tocopherols and tocotrienols in palm oil.
abstract: Analyses of tocols (tocopherols and tocotrienols) in palm oil have been extensively reported in the past. However, due to the scarcity of individual tocotrienol standards, calibrations have mostly been carried out using only α-tocopherol as standard. Moreover, even if the individual tocotrienols are being used, their reliability is often questioned, because tocotrienols are highly susceptible to oxidation and deterioration. This paper reports on the study of the deterioration rate of individual tocotrienol standards upon storage as well as different calibration methods for the tocols in palm oil.
authors.affiliation: Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, Kajang, Selangor, Malaysia. meihan@mpob.gov.my
authors.forename: Ng Mei
authors.initials: NM
authors.lastname: Han
authors.forename: Choo Yuen
authors.initials: CY
authors.lastname: May
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004355:Drug Stability; D006536:Heptanes / Q000737:chemistry; D006586:Hexanes / Q000737:chemistry; D000073878:Palm Oil; D010938:Plant Oils / Q000737:chemistry*; D012015:Reference Standards; D024505:Tocopherols / Q000032:analysis*; D024508:Tocotrienols / Q000032:analysis*
chemical_list: D006536:Heptanes; D006586:Hexanes; D010938:Plant Oils; D024508:Tocotrienols; D000073878:Palm Oil; D024505:Tocopherols