Document Detail

The proximate, mineral, and toxicant compositions of four possible food security crops from southeastern Nigeria.
MedLine Citation:
PMID:  20828321     Owner:  NLM     Status:  MEDLINE    
The proximate, nutritional, and antinutritional compositions of the raw, cooked, and roasted samples of four Nigerian indigenous seeds-Sphenostylis stenocarpa, Pentaclethra macrophylla, Mucuna flagellipes, and Citrullus colocynthis-were evaluated. Also estimated were zinc and divalent cation bioavailability of the seeds using millimolar ratios/kg dry weight of [calcium]/[phytate], [phytate]/[zinc], [calcium][phytate]/[Zn], and [phytate]/[total phosphorus]. The results obtained revealed that the seeds of P. macrophylla and C. colocynthis had high protein and lipid levels. All the seeds were also found to have high energy value and low moisture content. Mineral analysis showed the presence of Na, K, Ca, and Mg in appreciable quantities and Zn, I, Fe, and Se in minute quantities. Antinutritional analyses indicated the presence of traces of tannin, oxalate, phytate, saponin, and cyanide in the samples. The various processing techniques had significant (P ≤ .05) effects on the measured parameters. The calculated [Ca][phytate]/[Zn] molar ratios revealed that these seeds had values above the critical level of 0.5 mL/kg, thus indicating reduced bioavailability of zinc. In view of the high nutrient contents, low antinutritional contents after processing, and their superabundance, these seeds could be cheap nutrient sources. The implications of these findings with regards to food security are enormous.
Okey A Ojiako; Chiza A Ogbuji; Ngozi C Agha; Viola A Onwuliri
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of medicinal food     Volume:  13     ISSN:  1557-7600     ISO Abbreviation:  J Med Food     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-10-04     Completed Date:  2011-01-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812512     Medline TA:  J Med Food     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1203-9     Citation Subset:  IM    
Department of Biochemistry, Federal University of Technology, Owerri, Nigeria.
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MeSH Terms
Calcium / analysis
Citrullus / chemistry
Crops, Agricultural / chemistry*
Cyanides / analysis
Fabaceae / chemistry
Food Handling / methods
Minerals / analysis*
Mucuna / chemistry
Nutritive Value*
Phytic Acid / analysis
Seeds / chemistry*
Sphenostylis / chemistry
Zinc / analysis
Reg. No./Substance:
0/Cyanides; 0/Minerals; 7440-66-6/Zinc; 7440-70-2/Calcium; 83-86-3/Phytic Acid

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