HYDROCYANATE, OXALATE, PHYTATE, CALCIUM AND ZINC IN SELECTED BRANDS OF NIGERIAN COCOA BEVERAGE

被引:7
作者
AREMU, CY
ABARA, AE
机构
[1] Department of Biochemistry, College of Medical Sciencess, University of Calabar, Calabar
[2] Department of Chemical Sciences, School of Applied Science, The Polytechnic, Calabar
关键词
COCOA BEVERAGE; HYDROCYANATE; OXALATE; PHYTATE; CALCIUM; ZINC;
D O I
10.1007/BF02193931
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Hydrocyanate, oxalate, phytate, calcium and zinc were determined in five brands of cocoa beverage which were coded NC, BT, PN, CT and CA. Hydrocyanate ranged from 5.40 to 9.64 mg/100 g dry matter (DM), oxalate 68 to 146 mg/100 g DM, phytate 590 to 750 mg/100 g DM, calcium 28.7 to 116.4 mg/100 g DM and zinc 0.516 to 0.675 mg/100 g DM. The computed phytate:zinc, calcium:phytate and [calcium] [phytate]/[zinc] molar ratios ranged from 89 to 132, 0.80 to 3.01 and 0.64 to 3.03 respectively. The discussion is focused on toxic levels of hydrocyanate and oxalate, and the significance of the molar ratios in predicting the bioavailability of dietary zinc.
引用
收藏
页码:231 / 237
页数:7
相关论文
共 20 条
  • [1] Official Methods of Analysis, (1975)
  • [2] Are L.A., Gwynne-Jones D.R., Uses of cocoa-commercial and local, Cacao in West Africa, (1975)
  • [3] Aremu C.Y., Chemical estimation of iron, zinc, copper and phytic acid in selected foodstuffs, Fd Chem, 29, pp. 77-82, (1988)
  • [4] Aremu C.Y., Quantitative estimation of the dietary contributions of phytate, oxalate and hydrocyanate by six popular Nigerian foodstuffs, Nig J Nutl Sci, 10, pp. 79-84, (1989)
  • [5] Buss D., Robertson J., Composition of food, Manual of Nutrition, pp. 99-119, (1976)
  • [6] Chakraborty R., Eka O.U., Studies on hydrocyanic, oxalic and phytic acid content of foodstuffs, W Afr J Biol Appl Chem, 21, pp. 50-55, (1978)
  • [7] Davidson S., Passmore R., Brock J.F., Truswell A.S., Minerals, Human Nutrition and Dietetics, pp. 107-128, (1975)
  • [8] Davis N.T., Warrington S., The phytic acid, mineral, trace element, protein and moisture of UK Asian immigrant food, Hum Nutr Appl. Nutr, 40 A, pp. 49-59, (1986)
  • [9] Dye W.B., Studies on Halogeton glomenlus, Weeds, 4, pp. 55-60, (1956)
  • [10] Ferguson E.L., Gibson R.S., Thompson L.U., Ounpuu S., Berry M., Phytate, zinc and calcium of 30 East African foods and their calculated phytate: Zn, Ca: phytate, and [Ca] [phytate]/[Zn] molar ratios, J Fd Comp Anal, 1, pp. 316-325, (1988)