References
- Ahmed , H.M. , Mayatepek , E. , Laryea , M.D. , Ahmed Ali , F.R. , Leichsenring , M. and Bremer , H.J. 1990a . Composition of foods and dishes commonly consumed in villages of the Gezira area of Sudan . Ecol. Food Nutr. , 24 : 157 – 165 .
- Ahmed , H.M. , Laryea , M.D. , El‐Karib , A.O. , El‐Amin , E.O. , Biggemann , B. , Leichsenring , M. , Mayatepek , E. and Bremer , H.J. 1990b . Vitamin E status in Sudanese children with protein‐energy malnutrition . Z. Ernährungswiss. , 29 : 47 – 53 .
- Brignoli , C.A. , Kinsella , J.E. and Weihrauch , J.L. 1976 . Comprehensive evaluation of fatty acids in foods. V. Unhydrogenated fats and oils . J. Am. Diet. Assoc. , 68 : 224 – 229 .
- El‐Karib , A.O. , Laryea , M.D. , Mayatepek , E. , El‐Amin , E.O. , Ahmed , H.M. and Bremer , H.J. 1989 . Plasma retinol and tocopherols of breast‐feeding Sudanese women . Trop. Med. Parasit. , 40 : 405 – 408 .
- Exler , J. , Avena , R.M. and Weihrauch , J.L. 1977 . Comprehensive evaluation of fatty acids in foods. XI. Leguminous seeds . J. Am. Diet. Assoc. , 71 : 412 – 415 .
- Fristrom , G.A. , Stewart , B.C. , Weihrauch , J.L. and Posati , L.P. 1975 . Comprehensive evaluation of fatty acids in foods. IV. Nuts, peanuts, and soups . J. Am. Diet. Assoc. , 67 : 351 – 355 .
- Jellum , M.D. and Marion , J.E. 1966 . Factors affecting oil content and oil composition of corn (Zea Mays. L.) grain . Crop. Sci. , 24 : 641 – 645 .
- Jellum , M.D. 1970 . Plant introduction of maize as a source of oil with unusual fatty acid composition . J. Agric. Food Chem. , 18 : 365 – 368 .
- Marks , J. 1975 . A guide to the vitamins. Their role in health and disease , London, , UK : Medical and Technical Publishing Co. Ltd. .
- Mayatepek , E. , Bremer , H.J. , Laryea , M.D. , Leichsenring , M. , Ahmed , H.M. and Rabih , R.B. 1991 . Composition of foods and dishes commonly consumed in villages of the Gezira area of Sudan. II. Amino acids and biological value . Ecol. Food Nutr. , 26 : 71 – 81 .
- Mrisho , F.H. The importance of vitamin A in weaning food . Practice considerations for child‐feeding in East, Central and Southern African countries. Workshop . Arusha, Tanzania.
- Posati , L.P. , Kinsella , J.E. and Watt , B.K. 1975 . Comprehensive evaluation of fatty acids in foods. I. Dairy products . J. Am. Diet. Assoc. , 66 : 482 – 488 .
- Simpson , K.L. 1983 . Relative value of carotenoids as precursor for vitamin A . Proc. Nutr. Soc. , 42 : 7 – 17 .
- Souci , S.W. , Fachmann , W. and Kraut , H. 1989 . Food Composition and Nutrition Tables 1989/90. , 4. Aufl. , Stuttgart : Verlagsgemeinschaft . Wiss.
- Speek , A.J. , Temalilwa , C.R. and Schrijver , J. 1986 . Determination of ß‐carotene content and vitamin A activity of vegetables by high performance liquid chromatography and spectrophotometry . Food Chemistry , 19 : 65 – 74 .
- Weihrauch , J.L. , Kinsella , J.E. and Watt , B.K. 1976 . Comprehensive evaluation of fatty acids in foods. VI. Cereal products . A. Am. Diet. Assoc. , 68 : 335 – 340 .
- With support of a grant of the Ministry of Science and Research of the Federal State of Northrhine‐Westfalia, FRG
- With support of a grant of the German Academic Exchange Service (DAAD)