US/German Workshop Riverside 1999 L. Ruppert 1 Influence of Biogenic VOCs on Photooxidant Formation: Simulation Experiments in EUPHORE and Comparison with Model Calculations L. Ruppert Fraunhofer Institut Atmosphärische Umweltforschung, IFU Kreuzeckbahnstr. 19, D-82467 Garmisch-Partenkirchen, e-mail: [email protected] Introduction The possible contribution of biogenic VOCs to tropospheric ozon...

chemical compositions  and antimicrobial effects on E.coli and S.aureus of essential oils from lavandula anguifolia and salvia officinalis were stuied.disk diffusion method was conducted to evaluate the zone of microbial growth inhibition at 1,1:.2,1:.8 and 1:16 dilutions of the essenial oils at four stages of zero(fresh oil).1,2 and 3 months post-exeaction.the antimicrobial effect was also stu...

Marjinal arazi koşullarında yürütülen bu çalışmada 2 farklı ekim zamanının (sonbahar ve ilkbahar) Tıbbi Nane (Mentha × piperita L. var. Mitcham)’nin verim kalitesi üzerine etkileri araştırılmıştır. Deneme Doğu Akdeniz’in Çukurova Bölgesinde tesadüf blokları deneme desenine göre üç tekrarlamalı olarak gerçekleştirilmiştir. Sonuçlara en yüksek bitki boyu (43 cm), taze herba verimi (12763 kg ha-1)...

Essential oils are complex natural mixtures, their main constituents, e.g. terpenes and phenylpropanoids, being responsible for their biological properties. Essential oils from eucalyptus, tea tree and thyme and their major monoterpene compounds alpha-terpinene, gamma-terpinene, alpha-pinene, p-cymene, terpinen-4-ol, alpha-terpineol, thymol, citral and 1,8-cineole were examined for their antivi...

Background: Seizure is due to the abnormal electric activity of neurons in the brain. Because of the side effects of synthetic drugs, plant medicines can be used instead to control seizures.  Objectives: This study aimed to investigate the effect of aerobic exercise and α-pinene on pentylenetetrazole-induced seizures in mature male rats. Materials & Methods: A total of 40 Wistar male rats (we...

The chemical variations of the essential oil from the aerial parts of Laurus nobilis L. (Lauraceae) have been studied. Plant material has been harvested at each phenological status (vegetative, before anthesis, full flowering and seed-bearing). The oils were obtained by hydrodistillation of the air-dried samples. Analysis by GC and GC-MS of the essential oils has allowed to identify 39 compound...

The effect of NO2 on secondary organic aerosol (SOA) formation from ozonolysis of α-pinene, β-pinene, 1-carene, and limonene was investigated using a dark flowthrough reaction chamber. SOA mass yields were calculated for each monoterpene from ozonolysis with varying NO2 concentrations. Kinetics modeling of the first-generation gasphase chemistry suggests that differences in observed aerosol yie...