EFFECT OF TWO KINDS OF SOLVENT ON CHEMICAL COMPOSITION OF Cymbopogon citratus OIL
Table Of Contents
Chapter ONE
INTRODUCTION
- 1.1Introduction
- 1.2Background of study
- 1.3Problem Statement
- 1.4Objective of study
- 1.5Limitation of study
- 1.6Scope of study
- 1.7Significance of study
- 1.8Structure of the research
- 1.9Definition of terms
Chapter TWO
LITERATURE REVIEW
- 2.1Overview of relevant literature
- 2.2Historical perspectives on the topic
- 2.3Theoretical framework
- 2.4Key concepts and definitions
- 2.5Previous research studies
- 2.6Current trends in the field
- 2.7Gaps in existing literature
- 2.8Theoretical foundations
- 2.9Methodological approaches
- 2.10Summary of literature review
Chapter THREE
RESEARCH METHODOLOGY
- 3.1Research design and rationale
- 3.2Research questions and hypotheses
- 3.3Population and sample selection
- 3.4Data collection methods
- 3.5Data analysis techniques
- 3.6Ethical considerations
- 3.7Instrumentation and tools
- 3.8Validity and reliability
Chapter FOUR
DATA PRESENTATION AND ANALYSIS
- 4.1Presentation of findings
- 4.2Descriptive statistics
- 4.3Inferential statistics
- 4.4Data visualization techniques
- 4.5Comparison of results
- 4.6Interpretation of findings
- 4.7Discussion of implications
- 4.8Recommendations for future research
Chapter FIVE
SUMMARY, CONCLUSION AND RECOMMENDATIONS
- 5.1Summary of research findings
- 5.2Conclusion
- 5.3Contributions to the field
- 5.4Practical implications
- 5.5Recommendations for practice
- 5.6Limitations of the study
- 5.7Areas for future research
- 5.8Final thoughts and closing remarks
Thesis Abstract
ABSTRACT
The leaves of lemongrass (Cymbopogon citratus) were dried using three different drying methods (sun-drying for 36 h, shade-drying for 48 h and oven-drying at 45 °C for 7 h). The essential oil was obtained by hydro-distillation of the leaves dried by every treatment, and was analyzed by capillary GC and GC/mass instruments. Statistical analysis showed significant differences in the essential oil content of leaves dried by different drying methods. Oven drying gave the highest essential oil percentage (2.45%) compared to shade-drying (2.12%) and sun-drying methods (2.10%). Eighteen components were identified in the essential oil of fresh and dried C. citratus leaves obtained by different drying methods, including geranial (citral-a), neral (citral-b) and myrcene as main components. The drying methods had a marked effect on the proportion of the various components.
Thesis Overview
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