Extraction of Essential Oil from Murraya Koenigii Leaves Using Ultrasonic-Assisted Solvent Extraction Method

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EXTRACTION OF ESSENTIAL OIL FROM MURRAYA KOENIGII
LEAVES USING ULTRASONIC-ASSISTED SOLVENT EXTRACTION
METHOD

ZA ISKANDAR B MOHD DIKUI

UNIVERSITI MALAYSIA PAHANG

EXTRACTION OF ESSENTIAL OIL FROM MURRAYA KOENIGII
LEAVES USING ULTRASONIC-ASSISTED SOLVENT EXTRACTION
METHOD

ZA ISKANDAR B MOHD DIKUI

A report submitted in partial fulfillment of the requirement for the award of the degree of Bachelor of Chemical Engineering (Gas Technology)

Faculty of Chemical Engineering & Natural Resources
Universiti Malaysia Pahang

APRIL 2009

v

ABSTRACT

The objective of this research is to extract essential oils from M. koenigii leaves by using ultrasonic-assisted solvent extraction method. The major constituent of M. koenigii has been reported as caryophyllene and 3-carene which is responsible for the aroma and flavor. This research has focused on the influence of ultrasonic, various natures of solvents, sonication times and also drying method towards the extraction of M.koenigii essential oil. Two types of solvents are used in this research which is ethanol and hexane. In this research, the methods of drying, grinding, extraction, separation and analysis are used and the sample is separated from solvents by using a rotary evaporator to get the essential oil. The sample was analyzed by using a GC-MS to identify the component of M. koenigii essential oil. In this research, the most suitable solvent to produce higher percentage yield is by using ethanol (ultrasonic-assisted solvent extraction of fresh leaves for 30 minutes) and the percentage of oil yield also increased with increasing the time. The major component in M. koenigii leaves is caryophyllene and hexane on the other hand is the best solvent to be used to extract caryophyllene

vi

ABSTRAK

Objektif penyelidikan ini adalah bagi mengekstrak minyak pati M. koenigii
dengan…...

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