TABLE OF CONTENTS

Title page i

Certification ii

Dedication iii

Acknowledgement iv

Abstract v

Table of Contents vi

List of Tables vii

CHAPTER ONE

1.1 Introduction 1

1.2 Objectives of the Study 2

1.2.1 Specific Objectives 3

CHAPTER TWO

2.0  Literature Review 4

2.1 General Overview of Plant Extract 4

2.2 Plant Extracts as Biopreservatives 5

2.3 Antifungal Activity of Plant Extracts 7

2.4 Citrus as Plant Extract 7

2.4.1 Phytochemicals in Citrus and Its Medicinal Properties 9

2.4.1.1 Flavonoids 10

2.4.1.2 Carotenoids 10

2.4.1.3 Fibre 11

2.4.1.4 Terpenoids (terpenes) 11

CHAPTER THREE

3.0 Materials and Methods 13

3.1 Collection of Materials 13

3.2 Method of Plate Preparation 13

3.3 Isolation of Fungi 13

3.4 Identification of Isolated Fungi 14

3.5 Extraction of Plant Materials 14

3.6  Antifungal Screening 14

3.7 Phytochemical Analysis of Citrus Extract 15

3.7.1 Detection of Alkaloids 16

3.7.2 Detection of Tannins 16

3.7.3 Detection of Flavonoids 16

3.7.4 Detection of Saponins 16

CHAPTER FOUR

4.0         Results 17

CHAPTER FIVE

5.0    Discussion, Conclusion and Recommendation 25

5.1 Discussion 25

5.2 Conclusion 25

5.3 Recommendation 26

REFERENCES