alpha-Tocopherol, total vitamin A and total fat in margarines and margarine-like products
1997
Rader, J.I. | Weaver, C.M. | Patrascu, L. | Ali, L.H. | Angyal, G.
Consumers' interest in dietary guidelines advising them to reduce their intake of fat has contributed to the development of new low- and fat-free margarine-like products. We measured vitamin E (alpha-tocopherol) and vitamin A (retinol and beta-carotene) in margarines and margarine-like products labeled as containing 0-80% fat. Test portions were saponified, extracted with petroleum ether, and analyzed by high performance liquid chromatography. Margarines of approximately 80% fat content contained 4-30 IU alpha-tocopherol/100 g. Reduced-fat margarines (fat content 14-53%) contained 4-15 alpha-tocopherol/100 g, while fat-free margarines (< 1% fat) contained < 1 IU alpha-tocopherol/100 g. alpha-Tocopherol in the products varied both with total fat content and with the vegetable oil ingredients. Total vitamin A measured in margarine products fell between 59 and 196% of label declarations.
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