keywords: Anti-nutrient, mineral, nutrient, Tamarindus indica, raw, roasted
Proximate, mineral and anti-nutrient composition of raw and roasted Tamarindus indica seed nuts was investigated. Sample was pretreated by roasting at 100˚C for 10 min, to enhance removal of seed coat. 500 g of the seeds were roasted in an open pan and mechanically de-hulled. The proximate composition of raw and roasted samples for dry matter, ash, lipid, crude fiber, crude protein and carbohydrate contents were 96.15, 1.17, 14.59, 3.08, 31.44, 46.49 and 99.21, 1.73, 7.03, 4.96, 26.86, 58.62%, respectively. Mineral compositions were Na (0.13 mg/g-1), K (0.31 mg/g-1), Ca (0.29 mg/g-1), Mg (0.87 mg/g-1) and P (0.14 mg/g-1) for raw sample and Na (0.38 mg/g-1), K (0.82 mg/g-1), Ca (0.67 mg/g-1), Mg(1.31 mg/g-1) and P (0.30 mg/g-1) for the roasted sample. Phytochemical screening showed that the pretreatment increased alkaloid and saponin contents significantly (p≤0.05) while, the increase in tannin and phytate contents was not significant (p>0.05). Tamarindus indica seednut can serve as an alternative to common legumes for protein supplement; roasted Tamarindus indica seed nut is more proteinous than the raw.
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