TY  - JOUR
T1  - Diurnal Changes on Content and Composition of <I>Thymbra Spicata</I> L. 
  Essential Oil
AU - Kaya, Durmus Alpaslan AU - Arslan, Mehmet AU - Inan, Memet AU - Baskaya, Sammas 
JO  - Research Journal of Biological Sciences
VL  - 8
IS  - 1
SP  - 6
EP  - 10
PY  - 2013
DA  - 2001/08/19
SN  - 1815-8846
DO  - rjbsci.2013.6.10
UR  - https://makhillpublications.co/view-article.php?doi=rjbsci.2013.6.10
KW  - Thymbra spicata
KW  -essential oil
KW  -diurnal variability
KW  -GC-MS
KW  -dry herbage
AB  - Diurnal variations in fresh and dry herbage for preparing 
  essential oil of <I>Thymbra spicata</I> were studied. Plants were harvested 
  hourly starting at 6 a.m. and ending at 5 p.m. Fresh and dry herbage essential 
  oil was extracted by hydrodistillation for 3 h and analyzed by GC-MS. The results 
  indicated that essential oil content changed according to the hour of the day. 
  Increases of essential oil content were determined in the early morning and 
  late afternoon harvests. But, the increases were not statistically significant. 
  Carvacrol, &#947;-terpinen and cymol were the dominant essential oil components 
  of both fresh and dry herbage of <I>T. spicata</I>. Small variations in essential 
  oil composition of fresh and dry herbage of <I>T. spicata</I> were detected 
  among harvesting hours. The best hour of harvest to obtain the essential oils 
  with the highest active ingredients of <I>T. spicata</I> are the cooler hours 
  of the day.
ER  -