Date of Award

Fall 2018

Document Type

Thesis

Degree Name

Master of Science

Department

Analytical Chemistry

First Advisor

Dr. Shelly Kumar

Second Advisor

Dr. Janjaya Ranmohotti

Third Advisor

Stephen Kent

Abstract

The characterization of fragrant chemical composition of commercial samples of lavender, violet and bergamot essential oil were analyzed using gas chromatography-mass spectrometry (GC-MS) techniques. The analysis led to the characterization of a total of 28 compounds for lavender oil, 17 compounds for violet oil, and 11 compounds for bergamot oil. The commercial sample of lavender essential oil has shown to be abundant in linalool, (21.40%), linalyl acetate (18.96%), trans-β- ocimene (7.41%), endo-borneol (6.53%), β-ocimene (6.43%), geranyl acetate (6.15%), β-myrcene (5.88%), terpinen-4-ol (5.70%) and cis-β-farnesene (4.40%). For commercial sample of violet essential oil, the major components in abundant were α-longipinene (37.35%), α-ionone (16.52%), trans-β-ionone (12.87%), α-terpineol (6.38%), benzyl acetate (5.94%), α-isomethyl ionone (5.00%), and benzylcarbamate (4.00%). For commercial sample of bergamot essential oil, dlimonene (36.03%) triacetin (28.09%), linalyl acetate (14.38%), linalool (7.36%), α-pinene (7.17%), and β-pinene (5.16%) were observed to be in abundant. The results obtained in this study were compared with the data in the literature. This study shows that these essential oils of lavender and bergamot contain most of the major components, but with different percentage ratio. The components of violet essential oil are different from the literature.

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