Effect of Different Storage Methods on the Proximate Composition and Functional Properties of Cream-Skinned Sweet Potato(Ipomea batatas Lam)
Journal Title: Scholars Journal of Engineering and Technology - Year 2014, Vol 2, Issue 1
Abstract
In this study, the effect of different storage methods on the proximate composition and functional properties of sweet potato (Ipomoea batatas Lam.) was investigated. The sweet potato tubers were harvested from a local farm in Jukwa, a village within the vicinity of Cape Coast. For the proximate composition, sample from the fresh tubers were thoroughly sorted, washed, peeled and subjected to analysis for moisture, ash, protein, fat, fibre, carbohydrate and reducing sugars. For the functional properties the peeled samples were sliced, sun-dried, milled into flour and subjected to analysis for water absorption, oil absorption, foaming capacity and swelling power. The rest of the tubers were cured and stored in sawdust, wood ash and ambient conditions for six weeks in a storage facility. Samples were taken from various storages every two weeks, processed and subjected to proximate composition and functional properties analysis. Results of the proximate analysis carried on the fresh sweet potato samples showed 59±0.69 % moisture, 2.27±0.17 % ash, 7.85±0.08 % protein, 0.95±0.00 % fat, 0.21±0.00 % fibre, 62.68±8.00 % carbohydrate and 2.41±0.00 % reducing sugars. For the functional properties the results showed 1.95±0.14 ml/g, 1.37±0.26 ml/g, 4.03±0.05 ml/g, and 8.88±0.82 g/g for water absorption capacity, oil absorption capacity, foaming capacity, and swelling power respectively. The results of the analysis of the stored samples showed no significant variations (p>0.05) in fibre, and reducing sugar, foaming capacity and swelling power with the storage methods and time but showed that moisture, ash, protein, fat, carbohydrate, foaming capacity and swelling power varied significantly (p<0.05) with storage time.
Authors and Affiliations
Agbemafle R, Otchere J. K. , Acquaye A. , Diabor . E, Asi J, Owusu Sekyere J. D.
Keywords
Related Articles
- EP ID EP384783
- DOI -
- Views 70
- Downloads 0
Sufficient conditions for meromorphic close-to-convexity of order
The purpose of the present paper is to consider some sufficient conditions for close-to-convexity of order alpha of meromorphic functions in the punctured unit disc. Keywords: Starlike functions; Meromorphic close-to-c...
Effect of Applied Electric Field on Electronic Transitions in ZnO Quantum Well
In this paper, we numerically investigate the impact of an electric field variation on the inter subband transitions in ZnO/MgZnO quantum well within the effective mass approximation. By solving the coupled equations Sch...
Flexible Electronics: Review and Status
Flexible electronics has undergone different innovations and its applications in different technology is overwhelming. High speed Computation; displays; energy generation; energy storage; flexible substrates; healthcare;...
Simulation of the mechanical properties of concrete column confined by GFRP cloth with different reinforcement ratio based on ANSYS
In this paper, ANSYS finite element software was used, and the 3 kinds of reinforcement ratio of the specimens were analyzed by finite element method. The effect of reinforcement ratio on the mechanical properties of GFR...
Study on Effect of Different Size Fraction Laterite Particles on Adsorption of Arsenic
The problem of environmental geotechnical engineering is the important problem that relates to the safety and the sustainable development of the geotechnical structure. This paper, studied the adsorption characteristics...