A comparison of volatile components of Setomi with its parent cultivars.
The citrus fruit Setomi is a hybrid of Yoshiura ponkan (Citrus reticulate Blanco) and Kiyomi (Citrus unshiu Mrcov. x Citrus sinensis Osbeck). The essential oils from the peel of Setomi and its parent cultivars were obtained by a simultaneous distillation extraction technique. Comparing the essential oils of Setomi and its parent cultivars, it was found that the oil in the peel of Setomi consisted of characteristic aroma components from each parent cultivar. The principal component analysis of data, obtained with an electronic nose, indicated that the odor quality of Setomi was different from those of the parent cultivars. (+info)
Comparison of microwave-assisted and conventional hydrodistillation in the extraction of essential oils from mango (Mangifera indica L.) flowers.
Fate of pesticides in a distilled spirit of barley shochu during the distillation process.
Moromi (the fermented mash) of "mugi shochu" that had been artificially contaminated with pesticides was distilled to elucidate the fate of pesticides in the distillation process. The pesticides residing in the distillate were quantified by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Of the analyzed pesticides (249 compounds), 89% were not detected in the distillate, showing that the distillation process minimized the risk of pesticide contamination. (+info)
A comparative study of physical and chemical processes for removal of biomass in biofilters.
Analysis of volatile compositions of Magnolia biondii pamp by steam distillation and headspace solid phase micro-extraction.
The chemical compositions of volatile components from Magnolia biondii Pamp were determined by steam distillation (SD) and headspace solid phase micro-extraction (HS-SPME) followed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analysis. Fifty-six compounds were identified and the major volatile components were d-camphor (0.18-43.26%), 1,8-cineol (13.23-38.02%), alpha-terpineol (6.57-12.29%) and alpha-cadinene (5.53-15.15%). The comparison of the volatile components from M. biondii Pamp harvested in three regions of China was investigated. Also, the comparison of volatile components by SD and HS-SPME methods in term of isolation time, plant-consuming and chemical compositions was discussed as well. The percentages of the volatile components by HS-SPME method were found to be large difference from the corresponding one by SD method. HS-SPME technique was much faster than SD (60 min (HS-SPME)/420 min (SD)). Although the aromatic profiles between HS-SPME and SD methods showed several quantitative differences, HS-SPME may be applied routinely to analyze aromatic and medicinal plants. (+info)