Tez özetleri Astronomi ve Uzay Bilimleri Anabilim Dalı

Determination of Chemical Constituents of Different Parts (Leaves, Fruıts And Wood) From Myrtus Communıs

In this research realized with the purpose of chemical characterization of wood and leaves of Common Myrtle, which is large distribution species in Turkey, the wood and fresh leaves of Myrtus communis have been examined in terms of extractive substances. The samples, which are research materials, have been taken from 5 significant regions where the species naturaly distributed (Erdek, Dalaman, Isparta, Alanya, Hatay).

The main purpose of this research is the determination of the oils isolated from fresh leaves of this species grown in the various regions of Turkey. For this purpose, fresh samples have been subjected to hydrodistillation process and isolated oils have been analyzed and inspected in GC-MS.

As a result of the essential oil analyses performed, when the leaves of myrtle from each region are compared in terms of volatile compounds, the most found component was 1,8 cineol with (30,21%). And this was followed in sequence by α – pinene (20,96%), linalool (13,32%), limonene (7,59%), α-terpineol (4,53%) and other compounds in trace quantity.

It has been determined that the percentages of these components vary from area to area and that the 1,8 cineol component is found mostly in Hatay with a rate of 36% exempt from Erdek. The second basic compound is α – pinene in all regions. It has been determined at the maximum in Alanya (25,15%). Other significant compounds detected are linalool (8,48% - 20,79%), limonene (3,69% - 13,41%), α-terpineol (2,98% - 6,09%) and myrthenyl acetate (0,13% - 9,03%).

And in terms of the volatile oil compounds of fresh leaves, the similarities between the trees or the differences observed among them which are examined through a dendrogram have been indicated using the SPSS program.

As the second purpose of the research, basic wood analyses have been performed in woody bodies that may be taken from only a few trees from the regions. Thus the woods of this species have been examined in detail in terms of chemical composition (such as amount of extractive substance, cellulose and lignin).

Assessing the results in terms of basic wood results; no clear difference between the samples has been detected. The differences detected are at the limits that may vary from one tree to another.

The trunk wood of the myrtle plant contains those components with higher proportions in terms of ash amount and solubility values compared to coniferous trees and trees with leaves (without tannins). (ash: % 0.61-0.86, total extractives: % 3.82- 4. 98, hot water extract: %6.46- 10.24, %1 NaOH extract: % 18.09- 25.76)

The amount of total extractive substance in wood samples were detected to be between 3,82% - 4,98%. It has been determined that total lignin (28,05% - 29,89%) and holocellulose values (74% - 76,02%) which are the main components of wood display such results similar to the other woody material in the literature.

Yağmur BİRİCİK
Danışman : Doç. Dr. Celil ATİK

Anabilim Dalı : Orman Endüstri Mühendisliği

Programı : Orman Ürünleri Kimyası ve Teknolojisi

Mezuniyet Yılı : 2009

Tez Savunma Jürisi : Doç. Dr. Celil ATİK

Prof. Dr. Bahattin GÜRBOY

Doç Dr. Nural YILGÖR

Doç. Dr. Hakan BERMEK

Yrd. Doç. Dr. Öznur ÖZDEN