Volatile Organic Compounds of Marine Sponge Petrosia ficiformis from the Adriatic Sea

: Volatile organic compounds (VOCs) of Petrosia ficiformis were investigated for the first time. The VOCs from fresh and air -dried sponge were obtained by hydrodistillation and headspace-solid phase microextraction and they were analysed by coupled gas chromatography-mass spectrometry. Aliphatic compounds with oc tan- 3 - one (up to 24.02 %), oct- 1 -en- 3 - ol (up to 8.65 % ) and heptadecane (up to 39.37 %) were the most abundant in the fresh sponge along with benzaldehyde (up to 18.59 % ) and diisobutyl phthalate (up to 8.44 % ). Higher percentage of N , N -dimethylmethanamin e (up to 19.08 %) was found in dried sample headspace and the loss of octan- 3 -one and benzaldehyde and increase of benzyl alcohol (up to 18.90 % ) were noted. The great difference among the fresh and dried sponge VOCs obtained by hydrodistillation was notic ed for fatty acids and derivatives abundance and 1H - indole increased (up to 6.00 % ) in the dried sponge. Both methods enabled obtaining more complete VOCs profile and drying signific antly changed their composition . -ol, octan- 3 -one, benzyl alcohol, benzaldehyde, diisobutyl phthalate, N , N - dimethylmethanamine, dimethyl trisulphide, 1H -indole .