THE NUTRITIONAL ASSESSMENT OF THE SEED OF WALNUT (Plukenetia conophora) SEED PURCHASED IN AN OPEN MARKET IN WARRI, DELTA STATE. NIGERIA.

Authors

  • J. O. Akpoghelie Department of Chemistry, Delta State University, P. M. B 1, Abraka. Delta State, Nigeria
  • J. U. Esemedafe
  • R. Okoh
  • G. C. Ugochukwu

Abstract

The nutritional assessment of the walnut seed (Plukenetia conophora) purchased in an open market in Warri, Delta State, Nigeria was evaluated. Moisture content was determined by drying to constant weight before subjecting for ashing. Oil content by soxhlet extraction; protein by kjeldahl method; vitamins by scalar analyzer 2000. Minerals content was determined by Atomic Absorption Spectrometry. The result for the nutritional composition reveals that the raw seeds contain 3.18% of ash content, 39.27% of moisture content; 8.40% of crude fibre; 5.19% of fat content; 20.74% of protein content and 23.22% of carbohydrate content. The minerals content reveals the constituent to be K = 4029.14mg / kg; Na = 3480.00mg / kg; Ca = 3014.28mg / kg; Mg = 726.11mg / kg; Fe = 68.00mg / kg; Zn = 24.01mg / kg; Mn = 19.00kg / kg and Cu = 14.00mg / kg. The phytochemical constituent reveals the presence of alkaloid to be 1.92mg / kg; Tannin to be 0.042mk / kg and galic acid to be 0.019mg / kg. There were no traces of flavonoids, cardiac glycosides, saponin, ellagic acid, caffeinic acid and anthraquinones. The vitamin composition reveals that the seed contains ascorbic acid (C) = 1.98mg / 100g; thiamine (B1) = 66.47 12μ"> g / 100g; riboflavin (B2) = 0.05 12μ"> g / 100g; Niacin = 0.02 12μ"> g / 100g; Cyanocobalamin (B12) = 0.07 12 μ"> g / 100g; The result of the nutritional composition of the Plukenetia conophora seed reveals that it is safe for public consumption and could be a potential source of useful drugs formulation.  Keyword: Proximate composition, Plukenetia conophora, Tetracarpidium conophorum, phytochemical composition, vitamins, seed.

Downloads

Published

2017-02-10

How to Cite

Akpoghelie, J. O., Esemedafe, J. U., Okoh, R., & Ugochukwu, G. C. (2017). THE NUTRITIONAL ASSESSMENT OF THE SEED OF WALNUT (Plukenetia conophora) SEED PURCHASED IN AN OPEN MARKET IN WARRI, DELTA STATE. NIGERIA. Journal of Chemical Society of Nigeria, 41(1). Retrieved from http://www.journals.chemsociety.org.ng/index.php/jcsn/article/view/59

Issue

Section

Articles