Phytochemical study of the headspace volatile organic compounds of fresh algae and seagrass from the Adriatic Sea (single point collection)

PLoS One. 2018 May 8;13(5):e0196462. doi: 10.1371/journal.pone.0196462. eCollection 2018.

Abstract

Performed phytochemical study contributes to the knowledge of volatile organic compounds (VOCs) of Halopteris filicina (Grateloup) Kützing, Dictyota dichotoma (Hudson) J. V. Lamouroux, Posidonia oceanica (L.) Delile and Flabellia petiolata (Turra) Nizamuddin from the Adriatic Sea (single point collection). VOCs were investigated by headspace solid-phase microextraction (HS-SPME) and analysed by gas chromatography and mass spectrometry (GC-MS/FID). H. filicina headspace contained dimethyl sulfide (DMS; 12.8%), C8-compounds (e.g. fucoserratene (I; 9.5%)), benzaldehyde (II; 8.7%), alkane C17, dictyopterene D and C (III, IV), tribromomethane (V), 1-iodopentane, others. F. petiolata headspace was characterized by DMS (22.2%), 6-methylhept-5-en-2-one (9.5%), C17 (9.1%), II (6.5%), compounds I-V. DMS (59.3%), C15 (14.5%), C17 (7.2%) and C19 (6.3%) dominated in P. oceanica headspace. Sesquiterpenes were found in D. dichotoma, predominantly germacrene D (28.3%) followed by other cadinenyl (abundant), muurolenyl and amorphenyl structures. Determined VOCs may be significant for chemosystematics and chemical communications in marine ecosystem.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alismatales / chemistry
  • Aquatic Organisms / chemistry*
  • Chlorophyta / chemistry
  • Gas Chromatography-Mass Spectrometry / methods
  • Mediterranean Sea
  • Phaeophyceae / chemistry
  • Phytochemicals / analysis*
  • Solid Phase Microextraction / methods
  • Volatile Organic Compounds / analysis*

Substances

  • Phytochemicals
  • Volatile Organic Compounds

Grants and funding

This research was supported by the Croatian Science Foundation under the project HRZZ-IP-11-2013-8547 (Research of Natural Products and Flavours: Chemical Fingerprinting and Unlocking the Potential) to Igor Jerković and by the Croatian Government and the European Union through the European Regional Development Fund - the Competitiveness and Cohesion Operational Programme (KK.01.1.1.01) – The Scientific Centre of Excellence for Marine Bioprospecting -BioProCro to Rozelinda Čož Rakovac.