Journal of Organic & Inorganic Chemistry

Headspace screening of alga Colpomenia sinuosa (Mertens ex Roth) Derbes & Solier, 1851 volatiles

2^nd Edition of EuroSciCon Conference on Chemistry
February 19-20, 2019 | Prague, Czech Republic

Marina Zekic, I Jerkovi and M Kranjac

University of Split, Croatia

Posters & Accepted Abstracts: J Org Inorg Chem

DOI: 10.21767/2472-1123-C1-021

Abstract

Colpomenia sinuosa (Mertens ex Roth) Derbes & 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 goldenbrown 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-phase microextraction (HSSPME) 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.

Biography

Marina Zeki�?�? 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.

E-mail: zekic@ktf-split.hr