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Page 30

Journal of Organic & Inorganic Chemistry

ISSN 2472-1123

2

n d

E d i t i o n o f E u r o S c i C o n C o n f e r e n c e o n

Chemistry

F e b r u a r y 1 9 - 2 0 , 2 0 1 9

P r a g u e , C z e c h R e p u b l i c

Chemistry 2019

C

olpomenia sinuosa

(Mertens ex Roth) Derbès & Solier, 1851 is thallus

bladder-like, smooth, slick, hollow, crisp, spherical to sac-like, irregularly

expanded or somewhat lobed, to 30 cm diameter, 10 cm high. This golden-

brown alga belongs to

Scytosiphonaceae

family. The sample was collected in

the Adriatic Sea close to Island Vis (43° 03' 47'' N, 16° 11' 15'' E). Volatiles of

fresh

C. sinuosa

were extracted by headspace solid-phasemicroextraction (HS-

SPME) and analysed by gas chromatography and mass spectrometry (GC-MS).

In this investigation of alga headspace volatile organic compounds (VOCs),

two fibers were used: namely polydimethylsiloxane/ divinylbenzene (PDMS/

DVB) and divinylbenzene/carboxene/polydimethylsiloxane (DVB/CAR/PDMS).

The major

C. sinuosa

volatile compounds (PDMS/DVB; DVB/CAR/PDMS)

were: dictyopterene D (6-[(Z)-1-butenyl]-1,4-cycloheptadiene) (26.7%; 10.9%),

Dictyopterene C' (6-Butyl-1,4-cycloheptadiene) (11.4%, 2.7%), dimethyl sulfid

(8.4%; 18.3%), tridecanal (5.1%; 6.3%), pentadecanal (5.0%; 2.4%), 1-pentene-

3-on (2.2%; 3.4%), octan-1-ol (1.2%; 3.1%), -Ionone (3,8%; 5,8%) and S-methyl

thioacetate (-; 3.3 %). Application of headspace solid-phase microextraction

enables identification of low-molecular organic compounds. Among those

volatiles, biologically active compound can be found such as allelochemicals,

defensive compounds, sex attractants or pheromones.

Headspace screening of alga Colpomenia sinuosa (Mertens ex

Roth) Derbès & Solier, 1851 volatiles

Marina Zekić, I Jerković and M Kranjac

University of Split, Croatia

Marina Zekić et al., J Org Inorg Chem 2019, Volume: 5

DOI: 10.21767/2472-1123-C1-021

Biography

Marina Zekić has graduated in 2005 at Faculty of Chemistry and

Technology, University of Split. She obtained her PhD in 2013

at Faculty of Chemical Engineering and Technology, University

of Zagreb. In 2007, she started to work as an Assistant at the

Department of Organic Chemistry, Faculty of Chemistry and

Technology in Split, where she is currently employed. She was

elected as an Assistant Professor in 2017 (Natural Sciences,

Field Chemistry). She has published 10 scientific papers cited

by Current Contents. She has been involved in realization of

three research projects. Currently, she is a Member of Project

Bioprospecting of Adriatic Sea. K.K. 01.1.1.01.0002.

zekic@ktf-split.hr

Sample of

Colpomenia sinuosa

collected

in the port of Vi

s