EFFECT OF DEHUSKING ON THE CHEMICAL AND NUTRITIONAL COMPOSITION OF JACK BEAN SEED

EFFECT OF DEHUSKING ON THE CHEMICAL AND NUTRITIONAL COMPOSITION OF JACK BEAN SEED

ABSTRACT

This study was aimed at assessing the phytochemical, nutritional, anti-nutritional and mineral compositions of the whole and dehusked seeds of wild Jack beans, Canavalia ensiformis, to ascertain its industrial and nutritional potentials. Phytochemical screening of the seeds revealed the presence of alkaloid, saponin, tannin, phlobatannin, phenol and quinine. There was no observable difference in the phytochemical constituents as a result of dehusking. The percentage proximate composition of the whole and dehusked seeds were found to be, total ash (3.73: 3.45) %; crude (1.82: 0.69) %; crude protein (33.21: 36.51) %; crude lipid (3.02: 3.18) % and carbohydrates (52.28: 48.28) % respectively. Also, the levels of the anti-nutrient factors determined were; tannins (9.57:2.28) mg/g; oxalate (1.18:0.67) mg/g; phytate (0.54: 0.36) mg/g and cyanide (0.10:0.04) mg/g. There was marked difference between the macro and micro mineral composition of whole and dehusked seeds. The study revealed the nutritional profile of the seed as a good source of plant protein, carbohydrates, basic phytochemicals, macro and micro minerals which are potentials that could be exploited by food and pharmaceutical industries. It has also established that dehusking caused a reduction in the levels of the anti-nutrients.

Salem University Journals

Salem University Journals

Salem University Journal of Life Sciences 2020: Vol. 2, No.1, pp 80-93 ISBN: 9789785877585

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