TABLE OF CONTENTS
CHAPTER ONE
1.0 Introduction 1
1.1 Objective of the Project 6
CHAPTER TWO
2.0 Literature Review 7
2.1 The Natural Heal Perspective of Culinary Herbs and Spice 8
2.2 Morphology and Description of Some
Particular Culinary Herbs and Spices 11
2.3 Chemical Constituents of Culinary Herbs and Spices 16
2.4 The Essential Roles of Culinary Herbs and Spices 25
2.5 Essential Oils 28
2.6 Oleoresins 30
2.7 Advantages of Oleoresins Over Convectional Spices and Herbs 31
2.8 Oleoresin Manufacture 34
2.9 Relative Flavour Strength of Some Spices 34
2.10 Autoxidation 35
2.11 Lipid Deterioration 36
2.12 Control of Oxidation 39
2.13 Mechanisms of Antioxidant 40
CHAPTER THREE
3.0 Materials and Methods 42
3.1 Sample Collection and Storage Prior to use 42
3.2 The Equipments Used 42
3.3 The Reagents Used 43
3.4 Methods of Materials Preparation 44
3.5 Proximate Analysis 45
3.6 Extraction of Oleoresins 51
3.7 Samples Preparation 52
3.8 Peroxide Value Determination 53
3. Thiobarturic Acid Value Determinations 54
CHAPTER FOUR
4.0 Results and Discussion on the Spices 56
4.1 Result of Proximate Analysis on the Spices 56
4.2 Result of Peroxide Value and Thiobarbituric Acid Value 57
CHAPTER FIVE
5.0 Conclusion and Recommendation 61
5.1 Conclusion 61
5.2 Recommendation 62
References 63
Appendix I 65
Appendix ii 71
Abstract
a comparative study was done on the physico-chemical and antioxidant properties of some culinary herbs and local spices. Piper Guiness (Uziza), Xylopia aethopica (Uda), Monodora Myristica (Ehuru) and Trtraleura Tetraopera (Osh
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