project proposal presentation name: gladys makaa sammy reg no: a22/4085/2009 title: effect of...
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PROJECT PROPOSAL PRESENTATION
NAME: GLADYS MAKAA SAMMY
REG NO: A22/4085/2009
TITLE:
EFFECT OF DIFFERENT PRESERVATION
METHODS ON THE NUTRITIVE VALUE OF
COWPEA ( Vigna unguiculata) LEAVES
SUPERVISOR: DR. M. J. HUTCHINSON
BACKGROUND INFORMATION• Originated in Africa and widely grown in Africa, South
East Asia, Latin America and Southern United States• Available mainly during the rainy season especially in
the dry areas• Drought tolerant varieties available for the dry areas.• Used as a vegetable and proven to be a good source
of vitamins and minerals e.g vitamins A and C, Ca, K and Fe (Imungi,1983)
• Little done on the crop-research on nutritive value of the leaves not given lots of emphasis compared to the seeds
PROBLEM STATEMENT AND JUSTIFICATION
• Little research on value addition of this leafy vegetable to provide food during the dry season of scarcity.
• Emphasis only given to cowpea seeds yet demand for leaves is still on the rise –in both urban and rural areas
• Little information on the impact of different value addition options on vitamins and micronutrients content.
• Leaves highly nutritious and can be preserved using locally available methods-cheap and easy to practice (sun-drying, blanching and freezing etcetera) (Evelyn, 2006)
Overall objective
To determine the effect of different preservation methods on the amounts of vitamin A, vitamin C, potassium, calcium and iron.
Specific objectives
1. To determine the effect of sun drying on the amounts of Vitamin A, vitamin C, potassium, calcium and iron.
2. To determine the effect of blanching and freezing on the amounts of vitamin A, vitamin B, potassium, calcium and iron.
3. To determine the effect of blanching and sun drying on the amounts of vitamin A, vitamin C, potassium, calcium and iron.
METHODS AND MATERIALS Experimental site: Will be carried out in a farmer’s field
Ndumbuini- Kabete between February and April 2013. Planting material: California Black-eyed pea Experimental design: Completely Randomized Design
(CRD) on ground with no replications and 3 replications for each of the four treatments in the laboratories.
Data collection technique: Primary- collection of cowpea
leaves from the field for analysis in the Food Science and Soil Chemistry laboratories
CONT’DTreatments: Fresh leaves(control) Blanching and sun drying Blanching and freezing Sun drying (fresh leaves)Total treatments: 60 (12 for each treatment)Determination of the various components• Vitamin A- Spectrophotmetrically as β-carotene according to
AOAC (1984)• Vitamin C- visual titration using 2, 6-dichlorophelindophenol
dye according to AOAC (1984)• Calcium and Iron- FLAME AAS• Potassium-FLAMEPHOTOMETREData analysis: Data obtained will be subjected to Analysis of Variance
(ANOVA) using GENSTAT statistical package and the means will be compared and tested at 5% level of significance.
REFERENCES
1. Imungi, J.K and N.N. Potter, 1983. Nutrition content of raw and cooked cowpea leaves. Journal of food science 48(4):1254-1254
2. Evelyn, C. 2006. Blanching is a must when freezing vegetables. Journal on Extension Foods and Nutrition (344):844-2224
WORKPLANTIME
ACTIVITY JAN
2013
FEB
2013
MARCH 2013
APRIL 2013
MAY
2013
Proposal writing
Land preparation
Planting
Proposal presentation
Data analysis
Report presentation
THE END – THANK YOU