Global Advanced Research Journal of Food Science and Technology (GARJFST) ISSN: 2315-5098 June 2014 Vol. 2(3), pp 035-043.

Copyright © 2014 Global Advanced Research Journals   

 

Original Research Articles

Chemical composition and nutritional evaluation of a cowpea protein concentrate 

Martin Alain Mune Muneb*, Samuel René Minkaa, Israël Lape  Mbomeb 

aDepartment of Biochemistry, University of Yaounde I, PO Box 812 Yaounde, Cameroon

bThe Higher Institute of Sahel, The University of Maroua, PO Box 46 Maroua, Cameroon

cFood and Nutrition Research Centre, PO Box 6163 Yaounde, Cameroon

Corresponding author Email: alainmune@yahoo.fr 

Accepted 10 October 2012
 

 

Abstract

Cowpea protein concentrate was prepared by isoelectric precipitation, under optimum conditions determined in a previous study. The concentrate contained 86.90 % of the flour total protein, and had 85.82 % protein. Sugars and ash were in lower contents in the concentrate compared to the flour, while Fe and Zn contents were not significantly (p> 0.05) different. Phytates and polyphenols were eliminated in abundance during protein extraction and presence of trypsin and α-amylase inhibitors in the concentrate suggested application of an adequate heat treatment before its use in food products. The concentrate in vitro protein digestibility was high (86.81-88.74 %), and had a balanced essential amino acid composition compared to the FAO/WHO reference pattern. Tryptophan and total sulphur amino acids were first and second limiting amino acids. The predicted protein efficiency ratio, essential amino acids index and biological value indicated the good quality of cowpea protein concentrate, although elimination of tryptophan and sulphur-rich proteins during protein extraction affected the chemical score and protein digestibility corrected amino acid score.                                            

Keywords: cowpea, protein concentrate, antinutritional factors, protein quality

Related Articles


Original Research Articles
Adamu Shahidah A., Nazidi Ibrahim, Salau I. A. and Sambo S
Proximate Composition and Microbial Load of Locally and Laboratory Produced Bambara Nut Condiment
Glo. Adv. Res. J. Food Sci. Technol. December 2018 Vol: 7(8): - [Abstract] [Full Text - PDF] (127 KB)
Raka Srivastava and Aakanksha Nahar
Retention of Nutrients in Different Pulses Using Convetional Microwave and Solar Cooking
Glo. Adv. Res. J. Food Sci. Technol. March 2015 Vol: 4(3): - [Abstract] [Full Text - PDF] (849 KB)
Chadi, .M., Auyo, M.I., Daniel, A.K., and Kutama, A.S.,
Effects of Temperature on the Incidence and Severity of Pre-Emergence and Post-Emergence Damping off of Cowpea (Vignaunguiculata L.) By Pythium debaryanum
Glo. Adv. Res. J. Food Sci. Technol. August 2016 Vol: 5(8): - [Abstract] [Full Text - PDF] (457 KB)
Afaf S. Altalhi; Aziza M. Hassan; Shatha Dhaifallah Al-Harthi and Fatima Sulaiman Al-harbi
Wild Olive Leaf Extracts Up regulate Insulin-signaling Gene Expression in Diabetic mice
Glo. Adv. Res. J. Food Sci. Technol. April 2018 Vol: 7(4): - [Abstract] [Full Text - PDF] (281 KB)
Tchatchoua Dorothy Tchapda, Caspa Roseline Gusua, Oumarou Hamadou, Hamawa Yougouda Abib Fanta Chimene, Froumsia Moksia
genetic-resources-of-faidherbia-albida-(del.)-a.-chev.-in-the-sudano-sahelian-region-of-cameroon
Glo. Adv. Res. J. Food Sci. Technol. September 2017 Vol: 6(9): - [Abstract] [Full Text - PDF] (521 KB)
Tsado DN, Adama TZ, Dikko HA, Ishiaku YM and SU Oyibo
Water Intake and Influence of Ambient Temperature on Carcass Characteristics of Savannah Brown Goats Fed Graded Levels of Maize Cob Diets Supplemented With Cowpea Husk
Glo. Adv. Res. J. Food Sci. Technol. February 2015 Vol: 4(2): - [Abstract] [Full Text - PDF] (154 KB)

Current Issue

Viewing Options

View Full Article - PDF
Download Full Article - PDF

Search for Articles

Martin Alain Mune Mune on Google Scholar
Martin Alain Mune Mune on Pubmed
Samuel Rene Minka on Google Scholar
Samuel Rene Minka on Pubmed
Israel Lape Mbome on Google Scholar
Israel Lape Mbome on Pubmed

Statistics

Viewed 1563
Printed 680
Downloaded 6757
Powered By iPortal Works