Home » Agriculture » CHEMICAL AND RHEOLOGICAL EVALUATION OF PRODUCTS FROM AFRICAN STAR APPLE (Chyros...
CHEMICAL AND RHEOLOGICAL EVALUATION OF PRODUCTS FROM AFRICAN STAR APPLE (Chyrosophyllum albidum) PEELS AND COTYLEDONS
Sold By: Joe Project Store | Item Type: Project Material | Report this? | Attributes: 45 pages | 1-5 chapters | Amount: ₦5,000 | Marked useful: 4,725 times
Delivery: Within 24 hoursCHEMICAL AND RHEOLOGICAL EVALUATION OF PRODUCTS FROM AFRICAN STAR APPLE (Chyrosophyllum albidum) PEELS AND COTYLEDONS
ABSTRACT
The seeds and peels of African star apple (Chrysophyllum albidum) (“udara”) were split,
followed by removal of mucilage from the seeds and subsequent cracking of the seed shells,
and de-pulping of the peels. The seed cotyledons and peels were blanched at 1000C for 2,4
and 6 mins, wet milled with water in 1: 1.5 ratio, sieved with muslin cloth to obtain the
extracts which were pasteurized at 800C for 10mins and stabilized with 0.2, 0.4, 0.6, 0.8 and
1.0 (g/litre) concentrations of carboxy methyl cellulose (CMC) and pectin each. A
preliminary study was done on the African star apple (“udara”) peels and seeds by ranking to
determine the best two stabilized samples from each of the three batches of 2, 4, and 6 mins
blanched. Based on the overall acceptability of the panelists, six samples were selected for
further study together with their respective controls making a total of twelve samples coded
as follows: peel extract control samples A1, B1 and C1 of 2, 4 and 6 mins blanching
respectively, cotyledon extract control samples A2, B2 and C2 of 2, 4 and 6mins blanching
respectively, stabilized peel extract samples D1, E1 and F1 of 2, 4, and 6 mins blanching
respectively, and stabilized cotyledon extract samples D2, E2 and F2 of 2, 4, and 6 mins
blanching respectively. The fresh peel and cotyledon had moisture (22.36%), protein (1.68%
and 4.33%), crude fibre (8.21% and 5.99%), ash (0.18% and 0.30%), fat (0.50% and 3.05%)
and carbohydrate (66.87% and 60.74%), respectively which reduced with increased
blanching period.
The antinutrients - tannin (0.400% and 0.240%), HCN (1.06% and 1.10%)
and phytate (1.21% and 2.73%)- in both peels and cotyledons respectively also reduced
appreciably with increased blanching period. Blanching considerably reduced the viscosity
while stabilization increased the viscosity. Rheological characterization of “udara” peel and
cotyledon samples was found to be shear thinning – pseudoplastic behaviour of non-
Newtonian fluid. Freezing at -10°C of “udara” peel and cotyledon products caused significant
(p<0.05) sedimentation of their solid fractions and subsequent separation into solids and
water phases at all levels of stabilization.
This material content is developed to serve as a GUIDE for students to conduct academic research
Delivery: Within 24 hours
Advertise Here
Not what you were looking for? Perform a search
What's your project topic?
Comment on Facebook:
Related Project Materials
- 1.
ASSESSMENT OF INDIGENOUS FARMERS PERCEPTION OF CLIMATE CHANGE IN NORTH CENTRAL PART OF NIGERIA
CHAPTER ONE INTRODUCTION 1.1 Background of the Study One of the continents most susceptible to both climate variability and change is Africa. Farme...More »
Item Type: Project Material | 54 pages | 607 engagements |
- 2.
THE IMPACT OF AGRICULTURAL POLICIES ON NIGERIAN ECONOMY
THE IMPACT OF AGRICULTURAL POLICIES ON NIGERIAN ECONOMY CHAPTER ONE INTRODUCTION 1.1 Background to the Problem Agriculture in the context of the eco...More »
Item Type: Project Material | 55 pages | 0 engagements |
- 3.
THE IMPACT OF AGRICULTURAL DEVELOPMENT PROGRAMMES ON THE ECONOMY
THE IMPACT OF AGRICULTURAL DEVELOPMENT PROGRAMMES ON THE ECONOMY CHAPTER ONE INTRODUCTION 1.1 Background of the Study Agriculture is the foundation an...More »
Item Type: Project Material | 60 pages | 0 engagements |
- 4.
THE EFFECT OF MONETARY POLICY ON AGRICULTUTRAL OUTPUT IN NIGERIA
THE EFFECT OF MONETARY POLICY ON AGRICULTUTRAL OUTPUT IN NIGERIA CHAPTER ONE INTRODUCTION 1.1 Background of the Study The...More »
Item Type: Project Material | 55 pages | 1,638 engagements |
- 5.
THE ECONOMIC PROBLEMS OF CASSAVA PRODUCTION
THE ECONOMIC PROBLEMS OF CASSAVA PRODUCTION CHAPTER ONE INTRODUCTION 1.1 Background of the study This study is aimed at finding out the c...More »
Item Type: Project Material | 50 pages | 0 engagements |
- 6.
THE CONTRIBUTION OF AGRICULTURE COOPERATIVE SOCIETIES TO FOOD PRODUCTION (A Case Study Selected Agr...
THE CONTRIBUTION OF AGRICULTURE COOPERATIVE SOCIETIES TO FOOD PRODUCTION (A Case Study Selected Agricultural Cooperative Societies In Enugu North Lo...More »
Item Type: Project Material | 55 pages | 1,733 engagements |