Verma R S, Verma R K, Chauhan A, Yadav A K
Central Institute of Medicinal and Aromatic Plants (CIMAP, CSIR), Research Centre, Pantnagar, P.O.- Dairy Farm Nagla, Udham Singh Nagar, Uttarakhand-263 149, India.
Indian J Pharm Sci. 2011 Mar;73(2):233-5. doi: 10.4103/0250-474x.91570.
Thymus serpyllum L. grown in Kumaon region of Western Himalaya was investigated for essential oil content and composition in different seasons. The oils of fresh samples were obtained by hydrodistillation. The yield of essential oil (% v/w) during different seasons varied from 0.07 to 0.28% with the highest in summer season, at vegetative stage. The oils were analyzed by GC and GC-MS. Major components of all the samples were thymol (19.4-60.1%), γ-terpinene (0.3-13.8%) and p-cymene (3.5-10.4%). The results clearly indicated that season has significant effect on quality and quantity of thyme oil.
对生长在西喜马拉雅库蒙地区的百里香进行了研究，以分析其在不同季节的精油含量和成分。新鲜样品的精油通过水蒸馏法获得。不同季节精油的产量（% v/w）在0.07%至0.28%之间变化，其中在夏季营养期产量最高。通过气相色谱（GC）和气相色谱 - 质谱联用（GC-MS）对精油进行了分析。所有样品的主要成分是百里香酚（19.4 - 60.1%）、γ-萜品烯（0.3 - 13.8%）和对异丙基苯（3.5 - 10.4%）。结果清楚地表明，季节对百里香油的质量和产量有显著影响。
