ABSTRACT
The quantitative phytochemical analysis of leaves and peel of unripe Carica papaya were carried out using standard procedures. The phytochemical analysis revealed the presence of alkaloids, flavonoids, saponins, tannins and cyanogenic glycosides in variable amount. The leave contained 2.52 ± 0.0212%, 0.74 ± 0.0141%, 6.36 ± 0.1555%, 46.58 ± 0.0565% and 69.77 ± 0.0848% of alkaloids, flavonoids, saponin, tannin and cyanogenic glycosides while the unripe peel contained alkaloid (3.72 ± 0.04959%), saponin (1.28 ± 0.0424%), flavonoid (4.38 ± 0.1766%), Tannins (35.38 ± 0.0.0282mg/100g), and cyanogenic glycosides (89.34± 0.0282%) respectively. The significance of this result is that the distribution of phytochemicals in the Carica papaya depends on the plant parts and their presence suggests the therapeutic and medical values of the plant. It is therefore recommended that the epicarp (peels) of fruits such as pawpaw should be blended alongside the fruit and consumed.
TABLE OF CONTENTS
Title page – – – – – – – – – i
Certification – – – – – – – – ii
Dedication – – – – – – – – – iii
Acknowledgements – – – – – – – iv-v
Table of contents – – – – – – – vi
CHAPTER ONE: INTRODUCTION
1.1 BACKGROUND OF THE STUDY
1.2 AIM AND OBJECTIVES OF THE STUDY
1.2.1 Aim
1.2.2 Objectives
1.3 SCOPE AND LIMITATION OF THE STUDY
CHAPTER TWO: LITERATURE REVIEW
2.1 Carica papaya (Paw-Paw) Plant
2.2 NUTRITIONAL PROPERTIES Of Carica papaya PLANT
2.3 PHYTOCHEMICAL COMPOSITION OF Carica papaya PLANT
2.3.1 Alkaloids
2.3.2 Terpenoids
2.3.3 Flavonoids
2.3.4 Saponins
2.4 MEDICINAL PROPERTIES OF Carica papaya PLANT
2.4.1 Treatment of Dengue fever with Carica papaya plant extract
2.4.2 Management of Blood – Related issues
2.4.3 Antihyperglycemic Effects of Carica papaya plant extract
2.4.4 Digestive Disorder treatment with Carica papaya extract
2.4.5 Antifungal Activity of Carica papaya extract
2.4.6 Antimicrobial Activity of Carica papaya extract
CHAPTER THREE: MATERIALS AND METHODS
3.1 Materials and Reagents
3.1.1 COLLECTION OF PLANT SAMPLES
3.1.2 PREPARATION OF PLANT SAMPLES
3.2 METHODS
3.2.1 Determination of Alkaloids
3.2.2 Evaluation of Saponinin the Samples
3.2.3 Determination of Tannins
3.2.4 Determination of Hydrogen Cyanide
3.2.5 Determination of Flavonoids in the Samples
CHAPTER FOUR: RESULTS AND DISCUSSION
4.1 Results
4.2 Discussion
CHAPTER FIVE: CONCLUSION AND RECOMMENDATIONS
5.1 Conclusion
5.2 Recommendations
References
CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND OF THE STUDY
In recent years, the role and beneficial effects of many phytonutrients from plant sources such as fruits and vegetables had attracted much attention from food scientists as well as the public. These phytochemicals are natural antioxidant which frequently promoted due to the concerns regarding toxicity of the synthetic ones. Apart from free radical scavenging activity, antioxidants found from most of the plants possess antibacterial, antiviral, antimetastasis activity, antiulcer activity, antimutagenic, antiallergic and anticarciogenicity (Moure et al., 2001).Increasing numbers of studies on residual sources in replacing synthetic antioxidants with the natural ones are due to the augmented recycling interest of the agro-food industry. These are playing an important role in improving the complete utilization of the residual sources. The wastes or by-products from food processing such as seed and peel of some fruits contain higher source of potential antioxidant activities than that the edible portion (Okonogiet al., 2007).