Phytochemical and Physicochemical analysis of Oil Extracted from Allium Sativum) garlic)

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ABSTRACT

The oil was extracted from powder of garlic cloves using soxhlet extraction method with n-hexane as the solvent. The garlic clove gave 7.5% oil yield with specific gravity density of 0.89g/cm³. The oil is light yellow in colour with a pungent smell. The chemical analyses revealed saponification value of 188.07mgKOH/g, peroxide value of 2.50mg/100g, acid value of 4.1mgKOH/g, and Iodine value of 10.4g/100g.

These results obtained shown that the oil could be of benefit for soap production. This study shows that aqueous extract of Allium  Sativum bulb contain important and active  phytochemical compounds, such as alkaloid ,flavonoid, tannin ,cardiac glycoside and saponin which justify the various  therapeutic uses attributed to it in folklore medicine. The results in this analysis indicated good quality for the garlic oil.

TABLE OF CONTENT

Cover Page

Title Page

Declaration

Approval Page

Dedication

Acknowledgement

Abstract

CHAPTER ONE

Introduction

1.1   Justification

1.2   Aim and Objective

CHAPTER TWO

Literature Review

CHAPTER THREE

3.0     Materials and Method

Sample Collection

3.2     Oil Extraction

3.3     Physicochemical Determination

3.3.1  Determination of Percentage Yield

3.3.2  Determination of Specific Gravity

3.3.3  Determination of Saponification Value

3.3.4  Determination of Peroxide Value

3.3.5  Determination of iodine value

3.3.6  Determination of Acid Value

3.4     Phytochemical Screening

3.4.1  Detection of Alkaloid

3.4.2  Detection of Tannin

3.4.3  Detection of saponin

3.4.4  Detection of flavonoid

3.4.5  Detection of cardiac glycosides

CHAPTER FOUR

4.0     Result

4.1     Table 1

4.2     Table 2

4.3     Table 3

CHAPTER FIVE

5.0     Discussion, Conclusion and Recommendation

5.1     Discussion of Result

5.2     Conclusion

5.3     Recommendation

Reference

Appendix

 

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