EFFECTS OF REAPING TIME ON VOLATILE COMPONENTS OF NATURAL PHLOMIS RIGIDA LABILL. AND PHLOMIS MONOCEPHALA PHDAVIS IN TURKEY

Abstract

In this study, conducted between 2015 and 2017, 49 different volatile components were identified from Phlomis rigida Labill that was reaped from Golcuk highland located on Konya Seydisehir-Bozkir road and Phlomis monocephala P.H.Davis that was reaped from Mersin Silifke Bahcederesi Village in Turkey at three different periods (pre-flowering, flowering and post-flowering) through gas chromatography mass spectroscopy (GC-MS) after solid phase micro extraction (SPME). The main components of Phlomis rigida were found to be (E)-2-Hexenal (9.21%), beta-Calyophyllene (60.23%) and Germacrene D (9.76%). The main components of Phlomis monocephala were found to be alpha-Pinene (15.59%), (E)-beta-Farnesene (17.69%) and Germacrene D (18.92%). It was concluded that reaping P. rigida and P. monocephala species during the flowering period was important for the yield of volatile components.