E. Chivandi
Department of Livestock and Wildlife Management,
B. Kachigunda
Department of Agronomy,
F. Fushai
Department of Livestock and Wildlife Management,
Faculty of Natural Resources Management and Agriculture, Midlands State University,
Private Bag 9055, Gweru, Zimbabwe
ABSTRACT
In a study to compare the nutritive and Anti-nutritional Factors (ANFs) composition of industrially processed shelled Jatropha curcas (Physic nut) kernels and soyabean (Glycine max) seed; samples of industrially processed Soyabean Meal (SBM) generated from the traditional industrial hexane extraction method were used. Samples of J. curcas Meal (JCM) were derived from double solvent extraction of shelled J. curcas kernels in a hexane-ethanol extraction system followed wet extrusion (126°C, 2 atmospheres, 10 min contact time) and then re-extraction with hexane. The re-extracted JCM was then heated with pressurized steam at 121°C for 30 min before dried samples were used in the laboratory analyses. Significant differences (p<0.05) in both the nutrient and ANFs existed between the seed meals. The JCM had a significantly higher (p<0.05) Crude Protein (CP) with 577.00 g kg-1 DM versus 470.80 g kg-1 DM in SBM. Similarly JCM had a higher (p<0.05) ash, calcium and phosphorus content with 119.7, 12.4 and 22.26 g kg-1 DM, respectively versus the 73.8, 3.43 and 7.31 g kg-1 DM, respectively in SBM. The SBM and JCM registered statistically similar levels of Acid Detergent Fibre (ADF); however JCM had a significantly higher (p<0.05) Neutral Detergent Fibre content (NDF) at 177.30 g kg-1 DM with the SBM having 125.60 g kg-1 DM Neutral Detergent Fibre. The JCM had a residual Phorbol Esters (PEs) concentration of 0.8 mg g-1 that was equivalent to a decrease of 87.69% from the 6.5 mg g-1 PEs content in raw shelled Jatropha curcas kernels. The SBM registered 19.40 TUI mg-1 as trypsin inhibitor activity while the JCM did not show any such activity. Both meals did not cause agglutination and haemolysis of erythrocytes indicating that lectins and saponins were completely inactivated during the industrial processing of each meal.
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How to cite this article
E. Chivandi, B. Kachigunda and F. Fushai, 2005. A Comparison of the Nutrient and Antinutrient Composition of Industrially Processed Zimbabwean Jatropha curcas and Glycine max Meals. Pakistan Journal of Biological Sciences, 8: 49-53.
DOI: 10.3923/pjbs.2005.49.53
URL: https://scialert.net/abstract/?doi=pjbs.2005.49.53
DOI: 10.3923/pjbs.2005.49.53
URL: https://scialert.net/abstract/?doi=pjbs.2005.49.53
REFERENCES
- AOAC, 1990. Official Methods of Analysis. 15th Edn., Association of Official Analytical Chemists, Washington, DC., USA., pp: 200-210.
Direct Link - van Soest, P.J., J.B. Robertson and B.A. Lewis, 1991. Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. J. Dairy Sci., 74: 3583-3597.
CrossRefPubMedDirect Link - Reed, J.D., P.J. Horvath, M.S. Allen and P.J. van Soest, 1985. Gravimetric determination of soluble phenolics including tannins from leaves by precipitation with trivalent ytterbium. J. Sci. Food Agric., 36: 255-261.
CrossRef - Aderibigbe, A.O., C.O.L.E. Johnson, H.P.S. Makkar, K. Becker and N. Foidl, 1997. Chemical composition and effect of heat on organic matter- and nitrogen-degradability and some antinutritional components of Jatropha meal. Anim. Feed Sci. Technol., 67: 223-243.
CrossRefDirect Link - Chivandi, E., J.P. Mtimuni, J.S. Read and S.M. Makuza, 2004. Effect of processing method on phorbol esters concentration, total phenolics, trypsin inhibitor activity and the proximate composition of the Zimbabwean Jatropha curcas provenance: A potential livestock feed. Pak. J. Biol. Sci., 7: 1001-1005.
CrossRefDirect Link - Price, K.R., I.T. Johnson, G.R. Fenwick and M.R. Malinow, 1987. The chemistry and biological significance of saponins in foods and feedingstuffs. Crit. Rev. Food Sci. Nutr., 26: 27-135.
CrossRefPubMedDirect Link - Makkar, H.P.S., K. Beaker, F. Sporer and M. Wink, 1997. Studies on nutritive potential and toxic constituents of different provenances of Jatropha curcas. J. Agric. Food Chem., 45: 3152-3157.
CrossRef