Plant Foods for Human Nutrition

, Volume 42, Issue 3, pp 219–224 | Cite as

The effect of fermentation on the nutrient status and on some toxic components ofIcacinia manni

  • S. P. Antai
  • U. S. Obong


The effect of fermentation on the nutrient status and on some toxic components ofIcacinia manni was investigated. Chemical analysis of both unfermented and fermented products revealed an increase in protein, ash and fibre content while the lipid and carbohydrate content showed a decrease. The results indicated that fermentation resulted in protein enrichment of the fermentedIcacinia manni mash. Fermentation was also observed to cause a marked decrease in the level of some toxic components (oxalic acid, phytic acid and hydrocyanic acid) of the product. The possibility of incorporatingIcacinia manni among the edible starchy plant tubers is discussed.


Lipid Chemical Analysis Fermentation Carbohydrate Plant Physiology 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Antai SP (1990) Enrichment of nutrient quality of cassava (Manihot esculents Crantz) with microbial proteins. Plant Foods Hum Nutr 40: 289–296PubMedGoogle Scholar
  2. Antai SP, Ibrahim MH (1986) Microorganisms associated with African locust bean (Parkia filicoidea Welw) fermentation for ‘dawadawa’ production. J Appl Bact 61: 145–148Google Scholar
  3. Association of Official Analytical Chemist (1975) Official methods of analysis, 12th edn AOAC, Washington DC, Association of Official Analytical Chemist (1980) Official methods of analysis, 13th edn. Washington DC: AOACGoogle Scholar
  4. Azulay E, Jouanneau F, Bertrand J, Raphad A, Janssens J, Lebeault JM (1980) Fermentation methods for protein enrichment of cassava and corn withCandida tropicalis. Appl Environ Microbiol 39: 41–47Google Scholar
  5. Bassir O (1969) Toxic substances in Nigerian foods. WAJ Biol Appl Chem 13: 3–6Google Scholar
  6. Collard P, Levi S (1959) A two-stage fermentation of cassava. nature 183: 620–621Google Scholar
  7. Eka OU (1979) Effect of yeast fermentation of rice and sweet potatoes on their nutritive status. Nigerian Journal of Science 13: 243–250Google Scholar
  8. Eka OU (1986) Studies on fermentation of cassava: some enzymes and micro-organisms in the fermentation liquor and the effect of fermentation on nutrient status of cassava products. WAJ Biol Appl Chem 31: 3–9Google Scholar
  9. Ibrahim MH, Antai SP (1986) Chemical changes during the fermentation of African locustbean (Parkia filicoidea Welw) seeds for production of ‘Daddawa’. Plant Foods Hum Nutr 36: 179–184Google Scholar
  10. McCance QA, Widdowson EM (eds) (1946) The Chemical Composition of Foods, London: His Majesty's Stationery OfficeGoogle Scholar
  11. Okafor N (1986) Industrial Microbiology. Nigeria: Ife University Press Ltd, ILE-IFE, pp 1–2Google Scholar
  12. Oke OL (1965) Chemical studies on some Nigerian food stuffs. WAJ Biol Appl. Chem 8: 3–4Google Scholar
  13. Oke OL (1969) Oxalic acid in plants and in nutrition. In: Karger S (ed), World Review of Nutrition and Dietetics, BaselGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • S. P. Antai
    • 1
  • U. S. Obong
    • 1
  1. 1.Department of Biological Sciences, Microbiology UnitUniversity of CalabarCalabarNigeria

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