Biochemical and Functional Properties of Yam Flour during the Post-harvest Conservation of Dioscorea alata Cultivar « Azaguié »
Journal Title: Current Journal of Applied Science and Technology - Year 2017, Vol 21, Issue 6
Abstract
Aims: To be follow the biochemical and functional properties of yam flour during the post-harvest conservation of yam « Azaguié » (Dioscorea alata) tubers. Study Design: Analysis of variance (ANOVA) was carried out in this work. Place and Duration of the Study: Food Science and Technology Training and Research Unit, Nangui Abrogoua University, Abidjan, Côte d’Ivoire, from December 2014 to February 2016. Methodology: The yam tubers stored after harvest in a warehouse were kept for 6 months. Tubers were randomly taken for the preparation of flour every two months. Flours were obtained after grinding and sieving the pulp pieces and dried at 45°C for 48 h. Thereafter, the biochemical and functional analyses were performed on these different flours. Results: except for the lipid contents, all biochemical properties that were measured vary significantly (P ≤ 0.05) with post- harvest conservation time of the yam tubers. Dry matter, total sugars and reducing sugars increased. By cons, protein, phenolic compound, ash and minerals (calcium, copper, potassium, magnesium and zinc) decreased with post- harvest conservation time of the yam species tubers. With regard to functional properties studied, water absorption capacity (WAC), oil absorption capacity (OAC) and wettability increased significantly (P ≤ 0.05) with post-harvest conservation time of the yam tubers. However, the water absorption index (WSI), hydrophilic lipophilic index (HLI), bulk density, foaming capacity and foam stability decreased significantly (P ≤ 0.05) during post-harvest conservation of yam tubers. Conclusion: This study shows the importance of post-harvest conservation time of the yam tubers in the use of these categories of flours in food technology.
Authors and Affiliations
Kouadio Chiado Julie Nina, Dan Chépo Ghislaine, Konan Kouassi Hubert, Assoi Yapi Désiré Patrice, Kouamé Lucien Patrice, Kamenan Alphonse
Keywords
Related Articles
- EP ID EP318352
- DOI 10.9734/CJAST/2017/32404
- Views 147
- Downloads 0
Performance of Sand and Wood Fibres in Tertiary Treatment of Effluent Discharged by Lagoons
In Burkina Faso, as in most developing countries, access to water and sanitation remains a challenge. This justifies the reuse of wastewater to provide additional quantities of water for different uses to reduce water de...
Simulation of Steady State Heat Conduction Using an Hybrid Floating Walk and Markov Chain Technique
Markov chain technique had been developed for numerical simulation of steady state heat conduction. However the technique could only be used to handle domain with regular boundaries. An hybrid of floating walk and Markov...
Interaction of 2, 4-Dinitrophenol (2, 4-DNP) and 2, 4, 6-Trinitrophenol (2, 4, 6-TNP) with Metal Hexacyanoferrate (II) Complexes
Antimony, cadmium and zirconium hexacyanoferrates (II) were synthesized and characterized by elemental and spectral studies. Interaction of 2, 4-dinitrophenol (2, 4-DNP) and 2, 4, 6-trinitrophenol (2, 4, 6-TNP) with ant...
Biofortified Cereal Crops: A Sustainable Approach for Food and Nutritional Security
Introduction: A stealthier form of deficiency is known as hidden hunger which is caused due to the intake of cheap food and having the characteristic of fulfilness but actually lacked in essential vitamins and minerals....
Influence of Land Tenure on Food Security Status among Smallholder Farmers in Kilifi South Sub-County, Kenya
Food security is critical to the economic, social, religious, political and cultural development Worldwide. It plays a great role in economic growth, poverty reduction and sustainable development in Kenya. A study was ca...