Pakistan Research Repository

Title of Thesis

Characterization and Biological Activities of Essential Oils of Some Species of Lamiaceae

Author(s)

Abdullah Ijaz Hussain

Institute/University/Department Details

Department of Chemistry & Biochemistry / University of Agriculture Faisalabad

Session
2009

Subject

Chemistry

Number of Pages
257

Keywords (Extracted from title, table of contents and abstract of thesis)
Characterization, Biological, Activities, Essential, Oils, Species, Lamiaceae

Abstract

Essential oils are complex mixtures of biologically active substances used since a long time as flavouring agents and constituents of number of commercial products. Currently, their importance is more highlighted due to their increasing demand for food, cosmetics and pharmaceutical industries. Recent scientific literature revealed the antimicrobial, antifungal and antioxidant potential of essential oils. In view of the multiple applications of essential oils, their characterization based on their chemical profiles, is of great importance.In the present study, some indigenous species of Lamiaceae family were screened for the isolation of essential oils. The hydro-distilled essential oils were characterized for their physico-chemical and biological activities. . GC and GC-MS analysis of the chemical constituents of the isolated oils mainly revealed the presence of monoterpene hydrocarbons, sesquiterpene hydrocarbons, oxygenated monoterpenes, and oxygenated sesquiterpenes. The investigated essential oils exhibited good antioxidant, cytotoxic and antimicrobial activities as measured by different in-vitro assays and experimental models. The variations in the yield, chemical composition and biological activities of most of the essential oils investigated in the present study, with respect to species and harvesting season, were significant.

Download Full Thesis

3133 KB


S. No.	Chapter	Title of the Chapters	Page	Size (KB)

1	0	CONTENTS	7	83 KB

2	1	INTRODUCTION	9	59 KB

3	2	REVIEW OF LITERATURE 2.1 Essential oils 2.2 Sources of essential oils 2.3 Lamiaceae essential oils 2.4 Factors affecting essential oil accumulation 2.5 Methods of isolation of essential oils 2.6 Chemistry of essential oils 2.7 Biological effects of essential oils	31	222 KB

4	3	MATERIALS AND METHODS 3.1 Materials 3.2 Experimental protocol 3.3 Isolation of essential oils 3.4 Analysis of essential oils 3.5 Biological activities of essential oils 3.6 Statistical analysis	18	716 KB

5	4	RESULTS AND DISCUSSION	147	2169 KB

6	5	SUMMARY	3
	5.1	LITERATURE CITED	41	194 KB
				194 KB