Studies on nutritive potential and toxic constituents of different provenances of Jatropha curcas

Makkar, H.P.S. and Becker, K. and Sporer, F. and Wink, M. (1997) Studies on nutritive potential and toxic constituents of different provenances of Jatropha curcas. Journal of Agricultural and Food Chemistry, 45 (8). pp. 3152-3157.

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18 different provenances of J. curcas from Cape Verde, Senegal, Nigeria, Ghana, Benin, Burkina Faso, Kenya, Tanzania, Mexico, Nicaragua, Costa Rica, Burma and India were characterized for nutrient and antinutritional factors. The mean weight of the 18 seed provenances was 0.64±0.10 g. The kernel forms a large proportion of the seed and accounts for 61.3±3.1%. There were large variations in the contents of crude protein (19-31%; 26.0±3.2%), lipid (43-59%; 53.0±4.8%), neutral detergent fibre (3.5-6.1%; 5.0±0.87%) and ash (3.4-5.0%; 4.2±0.52%) in kernels. The gross energy of kernels was relatively similar (28.5-31.2 MJ/kg; 30.1±0.80 MJ/kg). Trypsin inhibitor activity in the defatted kernels (meal) varied from 18.4-27.5 mg of trypsin inhibited/g. Similarly a wide variation was observed for saponins (1.8%-3.4% as diosgenin equivalent), phytate (6.2%- 10.1% as phytic acid equivalent) and lectin activity, inverse of minimum amount of the sample (mg/ml) of the assay which produced agglutination (0.85-6.85 using a latex agglutination test and 51.3-204 using a haemagglutination assay) in the meals. Tannins, amylase inhibitor, glucosinolates and cyanogens were not detected in any of the meals. Phorbol esters were not detected in the seeds collected in Papantla, Mexico, whereas the level of phorbol esters in the remaining 17 provenances ranged from 0.87 to 3.32 mg/g kernel.

Item Type: Article
Additional Information: SNNigam Collections
Author Affiliation: Institute for Animal Production in the Tropics and Subtropics (480), University of Hohenheim, Germany
Subjects: Plant Protection
Agricultural Engineering
Crop Improvement
Plant Physiology and Biochemistry > Biochemistry
Divisions: Other Crops
Depositing User: Mr Arbind Seth
Date Deposited: 08 Aug 2013 09:39
Last Modified: 08 Aug 2013 09:39
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