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NUTRITIONAL UPGRADE OF BIOLOGICAL PRETREATED GROUNDNUT HUSK USING ASPERGILLUS NIGER AND TRICHODERMA VIRIDE


ALIYU, N.1*, ADAMUDE, F.A.2 AND ADAMU, Z.3

1 Department of Science Laboratory Technology, Nuhu Bamalli Polytechnic, Zaria, Nigeria 2Department of Biochemistry, Federal University, Lafia, Nigeria 3Department of Biochemistry, Federal University of Technology, Minna, Nigeria

Abstract:

One of the main problem in treatment of organic solid waste is its non-readily biodegradability due to the complexity of organic material especially lignocellullose. This study reports nutritional upgrade of biologically pretreated Groundnut Husk (GH) using Aspergillus niger and Trichoderma viride. Proximate content was assayed as described by AOAC. The results showed that the protein content increased to 63% in GH T. viride and 0.07% decrease in carbohydrate. There was no significant difference in the ash content for both treatments, while the anti-nutritional (saponin, alkaloid, oxalate, phytate and tannin) contents were relatively affected. Some minerals (manganese and phosphorous) decreased after fermentation. Glycine, 6.71mg/100g protein, was higher in GH A. niger than that of GH T. viride (4.53). Decrease in all amino acid contents maybe as a result of utilization by these organisms except aspartate which was high in the GH sample than the standard. This study indicates that T. viride is a potentially viable microorganism for nutritional upgrade in GH.

Key words: Aspergillus niger, groundnut husk, nutrition, Trichoderma viride

*Correspondence: nafnaf4U@gmail.com

How to cite: Aliyu et al. (2017); Nutritional upgrade of biological pretreated groundnut husk; Nigerian Journal of Scientific Research, 16(4): 2017; July - August; njsr.abu.edu.ng

 

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