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    The Change of Cyclotrichium niveum (Boiss) Manden & Scheng Essential oils and their components at the different growth stages
    (Chiminform Data S A, 2014) Inan, Memet; Kaya, Durmus Alpaslan; Vuluga, Zina; Albu, Madalina Georgina
    Cyclotrichium niveum (Boiss.) Manden.&Scheng. is an endemic species of Lamiaceae family spreading in different regions of Turkey. In order to determine the different growth stages in this species, the plant was harvested in its natural growing area for three times including the period of pre-flowering, full flowering and post-flowering. The highest rate of essential oil in plant was determined in post-flowering period (5.58 %), and this was followed by full-flowering (5.45%) and pre-flowering periods (2.83%). In all harvest periods, the main component of the essential oil was pulegone, and depending upon the development of the plant, the rate of the essential oil increased, as well. The highest rate of pulegone was determined in full-flowering period as 74.37%.