GC-MS ANALYSIS OF RAMALINA CAPITATA (ACH.) NYL. EXTRACT

Abstract

This is the first report on the GC-MS profile of the ether-soluble fraction (ESF) of the methanol extract of the lichen Ramalina capitata (Ach.) Nyl. (Ramalinaceae). The profile was dominated by orcinol (22.9 %) and its monomethyl ether (30.9 %), which accounted for more than a half of the GC-MS analyzable fraction of ESF. Significantly lower amounts of structurally related sparassol (5.8%) and atraric acid (0.9 %) were also detected. Additionally, ESF contained methyl linoleate, methyl linolenate and methyl palmitate (17.3 %, 7.3 % and 5.0 %, respectively).

GC-MS ANALIZA EKSTRAKTA LIŠAJA RAMALINA CAPITATA (ACH.) NYL.

GC-MS profil etarske frakcije (EF) metanolnog ekstrakta lišaja Ramalina capitata (Ach.) Nyl. (Ramalinaceae), predstavljen je po prvi put. GC-MS profilom su dominirali orcinol (22,9%) i njegov derivat – orcinol monometil etar (30,9%), koji su zajedno sačinjavali polovinu EF isparljive/stabilne pod uslovima GC-MS analize. U značajno manjoj količini su detektovani sparasol (5,8%) i atrarna kiselina (0,9%). Takođe, EF je sadržavao metil-linoleat, metil-linolenat i metil-palmitat (17,3%, 7,3% i 5,0%, redom).

HIGHLIGHTS

• Chemical composition of the ether-soluble fraction of the methanol extract of Ramalina capitata was investigated by GC-MS for the first time.
• Eight compounds were identified representing 97.8%.
• The most abundant volatiles were orcinol (22.9%) and its monomethyl ether (30.9%).
• Methyl linoleate was found to be the major ester (17.3%) followed by methyl linolenate (7.3%) and methyl palmitate (5.1%).