Release of essential oils from glassy hydrophilic copolymers of 2-hydroxyethyl methacrylate (HEMA) and ethylene glycol dimethacrylate (EGDMA) was studied in a range of releasing media at 307C. The release of carvone, limonene, and eugenol was investigated using swelling-controlled release systems based on these copolymers. By changing the crosslinking ratio of the copolymers it was possible to ...

Ultrasonic assist with headspace solid phase microextraction (UA-HS-SPME) have been applied, for the first time, for the extraction of volatile organic compounds of Carum carvi L. from Iran. The oils obtained were analyzed by GC–MS. Different experimental parameters such as fiber's coating type, sonication time, extraction time and temperature, and desorption time were investigated. Results sho...

Electroolfactogram recordings were made with a four-electrode assembly from the olfactory epithelium overlying the endoturbinate bones facing the nasal septum. In this study we tested whether odors of different chemical structures produce maximal responses along longitudinally oriented regions following the olfactory receptor gene expression zones described in the literature. The distribution o...

Helicobacter pylori infections are highly common amongst the global population. Such have been shown to be cause of gastric ulcers and stomach carcinoma and, unfortunately, most cases asymptomatic. Standard treatment requires antibiotics such as metronidazole or azithromycin which many strains now resistant. Mentha species used a natural for gastrointestinal diseases throughout history essentia...

In this study, different unit operations for distillation, extraction, capturing and separation of essential oil components from plants are evaluated, on the example limonene carvone caraway fruits. Hydrodistillation is standard process obtaining oils leaves distillation water (hydrolate) after phase distilled plant material (pomace) as waste streams. a valorization these streams, using techniq...