ABSTRACT
Papaya seed was assessed for its mineral and phytochemical compositions aimed at revealing its nutritive composition and dry weight basis. The analysis showed the presence of Calcium (1.957 ± 0.02), Sodium (0.172 ± 0.01%) Potassium (0.605 ± 0.01%), Magnesium (0.483 ± 0.01%), and Phosphorus (0.150 ± 0.01%) in papaya seed. Heavy metals which include iron (0.831 ± 0.01%), copper (0.527 ± 0.02 mg/100g), Zinc (0.162 ± 0.01mg/100g) and Manganese (0.481 ± 0.01 mg/100g) were also detected. Phytochemicals detected show high values in flavonoids (1.02 ± 0.03%), alkaloids (0.82 ± 0.02%) and saponins (0.93 ± 0.02%).
List of Tables
Pages
Table 1: Phytochemical composition of paw paw (papaya) seed – – 47
Table 2: Mineral composition of paw paw (papaya) seed – – 48
Table of Contents
Title Page – – – – – – – – – i
Certification – – – – – – – – – ii
Dedication – – – – – – – – – iii
Acknowledgements – – – – – – – iv
Abstract – – – – – – – – – v
List of Table – – – – – – – – vi
Table of Contents – – – – – – – – vii-viii
Chapter One
- Introduction – – – – – – – 1-6
- Aims and Objective – – – – – – 6-7
- Scope and Limitations – – – – – – 7-8
- Definition of Terms – – – – – – 8
Chapter Two
- Literature Review – – – – – – – 9
2.1 Botanical Description of Carica papaya – – – 9-10
2.2 Chemical Composition of Caricapapaya – – – 11-14
2.3 Carbohydrates Composition – – – – – 15
2.4 Minerals composition of papaya – – – – 15-23
2.5    Nutritional valve of papaya Seed     –       –       –       –       22-26
2.6 Uses of Paw paw (papaya) Seeds – – – – 27-30
2.7 Medicinal Uses – – – – – – – 30-31
2.8 Health Benefits – – – – – – – 31-34
Chapter Three
3.0 Materials and Methods – – – – – – 35
3.1 Sample collection and preparation – – – – 36
3.2 Determination of Phytochemicals – – – – 36
3.2.1 Determination of Alkaloid – – – – – 36-37
3.2.2 Determination of Saponin – – – – – 37-38
3.2.3 Determination of Flavonoid – – – – – 38
3.2.4 Determination of Tannins – – – – – 39-40
3.2.5 Determination of HCN-Cyanogenic Glycoside – – 40
3.2.6 Determination of Phytate – – – – – – 40-41
3.2.7 Determination of Trypsin inhibitor – – – – 41-42
3.3    Determination of mineral composition      –       –       –       42-42
3.3.1 Determination of P otassium and Sodium by Flame Photometer
(A.O.A.C, 1984) – – – – – – – 43
3.3.2 Determination of Calcium and Magnesium by EDTA titration
method – – – – – – – – 44
3.3.3 Determination of Phosphorus by Spectrophotometer – 44-45
3.3.4 Determination of Zinc – – – – – – 45
3.3.5 Determination of Copper – – – – – – 46
3.3.6 Determination of Iron – – – – – – 46
3.3.7 Determination of Manganese – – – – – 46
Chapter Four
4.0 Results and Discussion – – – – – – 47
4.1 Results – – – – – – – – 47-48
4.2 Discussion – – – – – – – – 48-51
Chapter Five
5.0 Conclusion and Recommendation – – – – 52
5.1 Conclusion – – – – – – – – 52
5.2 Recommendation – – – – – – – 53
         References
