the seasonal variation of volatile oil compositions (vocs) from fresh flowers of persian musk rose was investigated by combi pal headspace techniques. in this study, a total number of 21 vocs were detected by headspace on the combi pal system and gas chromatography-mass spectrometry (hs-gc/ms) from rosa moschata herrm. at different seasons which was representing 92.53-99.37% of total vocs. the ...

We investigated whether presenting of dilutions of phenyl ethyl alcohol at random succession according to the method of constant stimuli can replace the standard procedure of presenting a various number of dilutions in a staircase paradigm. Forty-six men and 44 women, aged 19-76 years, participated in this study. Phenyl ethyl alcohol was diluted in a ratio of 1:2, starting from 4%. Presentation...

This study shows the impact of three different commercial inactive yeast derivatives (IYDs) (Opti Less™, Noblesse™, Optimum White™, Lallemand, Canada and Oenolees MP™ Lafort, USA) during 6-month aging period on volatile profile, sensory attributes antiradical activity, including polyphenols total free sulfhydryl (-SH groups) content, Grašac wines made in sequential fermentation with native Hans...

Odor stimuli presented to one nostril can only be localised if they additionally activate the trigeminal nerve's chemosensitive fibers. In this study we aimed to investigate characteristics in the localisation of unilateral trigeminal, olfactory and somatosensory nasal stimuli. We compared the ability of healthy young subjects to localise monorhinally presented (a) pure olfactory stimuli (pheny...

A total of 899 urine cultures were evaluated to assess the need for and cost-effectiveness of using a gram-positive coccal selective plate in the initial plating of urine cultures. Of these cultures, 437 were examined retrospectively and 462 were examined prospectively. Urines were quantitatively plated to three media: sheep blood sugar, MacConkey agar, and phenyl ethyl alcohol agar. Of all uri...

The title compound, C(14)H(19)NO(3), was obtained as one of the two isomers of a Sharpless asymmetric dihydroxy-lation reaction of (1S)-1-[(1R)-1-phenyl-ethyl]-4-vinyl-pyrrolidin-2-one. The absolute stereochemistry of this isomer was determined from the known stereochemistry (R) at the bridge C atom between the phenyl and pyrrolidine rings. The mol-ecules form one-dimensional tapes along the b ...

UNLABELLED Aim of the study was to compare results of odor threshold test using different numbers of dilution steps, separately for butanol and phenyl ethyl alcohol (PEA). METHODS A total of 116 subjects participated (29 patients with olfactory dysfunction and 87 normosmic subjects). The olfactory threshold for butanol and PEA was examined with 8 (wide step method) and 16 (narrow step method)...

Recently a novel measure of olfactory function, the Sniff Magnitude Test (SMT), was developed that relies on changes in inhalation in response to an odor. The relationship of this unique test to that of other olfactory tests has received little investigation. In this study, we assessed, in 132 patients presenting to a chemosensory disorders clinic, the relationship of SMT scores to those from 3...