Article


Comparative Fermentation Studies and Detoxification of Jatropha Curcas Kernel Meal

Orji, S. L.1*, Ewansiha, J. U.2 & Orji, I. G.3

1Bio-resources Development Centre, National Biotechnology Development Agency, Lugbe Abuja, Nigeria
2Department of Microbiology, Federal University of Technology, Minna, Niger State, Nigeria
3Department of Food Science and Technology, University of Ibadan, Oyo State Nigeria

Dr. Orji, S. L., Bio-resources Development Centre, National Biotechnology Development Agency, Lugbe Abuja, Nigeria.

Keywords: Jaropha Curcas; Isolation; Microoganisms; Fermentation; Antinutrient; Phorbol Esters

Abstract

The quest for nontoxic feed for animal as an alternative to soybean meal cannot be over emphasized considering its high cost and level of demand. The detoxification of Jatropha curcas kernel meal for animal feed using different microorganisms in order to determine the organism with the best fermentative ability, better yield of nutritional value and potential for elimination of anti-nutritional factors was done using standard laboratory methods. The effects of fermentation duration for 5 and 10 days on anti-nutritional components in Jatropha curcas kernel meal were compared to the control meal (unfermented meal). The anti-nutritional composition of Jatropha kernel meals fermented for 5 and 10 days shows no significant difference (p > 0.05), except for tannin, phytate and phorbol ester which were significantly reduced (p < 0>Jatropha kernel cake, demonstrate B. subtilis with the lowest concentrations of tannin (0.67±0.13mg/g), saponin (4.50±0.31mg/g), lectin (21.22±2.11mg/g) and phorbol ester (0.12±0.01mg/g) (p < 0>Aspergillus brasiliensis, and Zymomonas mobilis generated the lowest concentrations of trypsin (25.71±5.80mg/g), phytate and (1.18±0.16mg/g) respectively in J. curcas cake. The solid state and submerged treated Jatropha kernel cake shows no significant difference (p > 0.05) in concentration of anti-nutritional factors, while a significant decrease (p < 0>J. curcas kernel cakefermented by both solid state and submerged process when compared with the control. The research findings reveals that microorganisms used in this study could be used for detoxification and improvement of nutritional values of Jatropha curcas kernel meal for animal feed with time optimization.

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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