Nutritional and Antioxidant Characterization of Blanched Leafy Vegetables Consumed in Southern Côte d’Ivoire (Ivory Coast)
Journal Title: Biotechnology Journal International - Year 2015, Vol 6, Issue 4
Abstract
The effect of blanching on the proximate composition, nutritive value and antioxidant properties of five leafy vegetable species (Basella alba, Colocasia esculenta, Corchorus olitorius, Solanum melongena and Talinum triangulare) used in the preparation of Ivorian diets was investigated. These leafy vegetables were subjected to steam blanching in a pressure cooker for 15, 25 and 45 min. This study highlighted losses (P < 0.05) of nutrients and anti-nutrients components at 15 min of blanching as follow: ash (6.68 – 33.80 %), proteins (0.56 - 15.71 %), vitamin C (4.75 – 73.21 %), carotenoids (18.77 - 72.76%) oxalates (2.16 – 42.62 %) and phytates (20.32 – 71.56 %). Contrary to the registered losses, the average increases of polyphenols and crude fibres contents at 15 min of blanching were 1.51 to 5.19% and 0.62 to 8.87%, respectively. Furthermore after 15 min of blanching time, the residual contents (P < 0.05) of minerals were: calcium (214.71 – 608.95 mg/100 g), magnesium (85.50 – 435 mg/100 g), potassium (1243.32 – 2940.38 mg/100 g), iron (17.07 – 45.86 mg/100 g) and zinc (17.48 – 64.03 mg/100 g). All the results above showed that blanching processing reduces nutritive value of leafy vegetables consumed in Southern Côte d’Ivoire. In order to contribute efficiently to the nutritional requirement and to the food security of Ivorian population, the domestic blanching time must be less than 15 min for preserving the beneficial nutritive properties of the studied leafy vegetables.
Authors and Affiliations
L. T. Zoué, F. C. Acho, S. L. Niamké
Keywords
Related Articles
- EP ID EP237130
- DOI 10.9734/BBJ/2015/14509
- Views 125
- Downloads 0
Optimization and Lipase Production of Lysinibacillus sphaericus in Domestic Oil Rich Waste Water
The present study investigated the growth and lipase production by Lysinibacillus sphaericus in a minimal medium. The growth conditions (i.e oil concentration, nitrogen source, carbon source, metals and non metals) were...
Biogas Production from Different Biomass Wastes with/without Leachate Recirculation
This study attempts to determine the effect of leachate recirculation on biogas production. The study was carried out by using the co-disposal of three major wastes: municipal solid waste (MSW), sewage sludge and cow dun...
Purification and Characterization of Pectin Methylesterase Produced in Solid State Fermentation by Aspergillus tubingensis
Aim: Purification and characterization of pectin methylesterase produced by Aspergillus tubingensis in solid state fermentation. Study Design: Pectin methylesterase enzyme produced by A. tubingensis was extracted from t...
Characterization of New Quality Protein Maize (QPM) Varieties from a Breeding Program: Analysis of Amino Acid Profiles and Development of a Variety-Diagnostic Molecular Marker
Aims of the Study: This study was to determine the amino acid profile of two newly developed quality protein maize varieties and to develop variety-diagnostic molecular markers. Methodology: Two new maize varieties, name...
Influence of Dominant Follicle and Corpus luteum on Recovery of Good Quality Oocytes for In vitro Embryo Production in Cattle
The quality of oocytes is more critical for the success of bovine in vitro embryo production (IVP) than the conditions of in vitro culture of these structures. Despite knowledge about bovine follicular development, espec...