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Asian Journal of Biochemistry
  Year: 2015 | Volume: 10 | Issue: 5 | Page No.: 230-236
DOI: 10.3923/ajb.2015.230.236
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Comparative Assessment of some Mineral, Amino Acid and Vitamin Compositions of Watermelon (Citrullus lanatus) Rind and Seed

Anthony Cemaluk C. Egbuonu

The mineral, amino acid and vitamin compositions of the rind and seed flours of Charleston gray variety of watermelon (Citrullus lanatus) were investigated, using standard methods. The mineral (mg/100 g) in the rind and seed, respectively viz: calcium (28±0.01, 54±0.02), phosphorous (129.7±0.01, 614.3±0.02), sodium (11.4±0.04, 87.0±0.06), potassium (21.7±0.00, 524.0±0.04), magnesium (30.4±0.01, 509.1±0.03), manganese (1.30±0.01, 6.40±0.04), iron (4.63±0.00, 7.08±0.01), copper (0.4±0.01, 0.7±0.00) and zinc (1.25±0.01, 10.13±0.02) was, aside that of copper (±0.3), significantly (p<0.05) higher in the seed. The value of the amino acids (g/100 g) in the seed sample viz: glutamate (11.43±0.01) followed by arginine (6.12±0.06), isoleucine (4.27±0.10), aspartate (2.81±0.01), glycine (2.47±0.03), leucine (2.09±0.01), valine (1.71±0.03), alanine (1.43±0.04), lysine (1.01±0.04), histidine (0.80±0.00), tryptophan (0.40±0.00) and cystine (0.39±0.02) was higher (p<0.05) than the corresponding value (0.00±0.00) in the rind sample. The vitamin composition in mg/100 g for the rind and seed, respectively for retinol (vitamin A) (50.15±1.41, 70.10±1.04), niacin (vitamin B3) (0.04±0.1, 3.32±0.00), ascorbic acid (vitamin C) (7.23±0.02, 6.8±0.03), thiamine (vitamin B1) (0.03±0.01, 0.20±0.00), riboflavin (vitamin B2) (0.02±0.1, 0.15±0.04) and pyridoxine (vitamin B6) (0.04±0.00, 0.09±0.01) was higher (p<0.05) in the seed flour for retinol and niacin. The preponderance of these nutrients in the, especially seed, samples, may be of nutritional and physiological importance warranting further studies to increase the dietary use of these food wastes and reduce the attendant burden in the environment.
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  •    Determination of Some Phyto-constituents Present in Terminalia catappa Endocarp Flour and Biochemical Evaluation of its Ethanolic Extract on Hepatic Indices in Male Wistar Rats
  •    L-arginine Exposure Improves Renal Function Markers of Metabolic Syndrome in Female Rats
  •    Sub-chronic Concomitant Ingestion of L-arginine and Monosodium Glutamate Improves Feed Efficiency, Lipid Metabolism and Antioxidant Capacity in Male Wistar Rats
  •    Comparative Investigation of the Proximate and Functional Properties of Watermelon (Citrullus lanatus) Rind and Seed
  •    Alterations in the Liver Histology and Markers of Metabolic Syndrome Associated with Inflammation and Liver Damage in L-arginine Exposed Female Wistar Albino Rats
How to cite this article:

Anthony Cemaluk C. Egbuonu , 2015. Comparative Assessment of some Mineral, Amino Acid and Vitamin Compositions of Watermelon (Citrullus lanatus) Rind and Seed. Asian Journal of Biochemistry, 10: 230-236.

DOI: 10.3923/ajb.2015.230.236






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