Determination of odor-active compounds from Phoebe neurantha (Hemsl.) Gamble and Osmanthus fragrans (Thunb.) Lour. by GC–MS/O and micro-chamber combined with Tenax TA and multi-bed tubes

摘要: To identify odorous substances of solid wood, the emission from two types wood species, namely Phoebe neurantha (Hemsl.) Gamble and Osmanthus fragrans (Thunb.) Lour. was sampled by micro-chamber extractor, combined with Tenax TA tube multi-bed (carbopack C, carbopack B carboxen 1000). The odor-active compounds were identified gas chromatography-mass spectrometry/olfactometry (GC–MS/O), which combine instrumental sensory analyses. results showed that, for fragrans, 12 20 kinds identified. main odor contributors “D-limonene, 2-hexanol, 1-heptanol 2-hexanone”, dominant impressions fragrant, irritant, special fruity. “camphene, heptanal pentanal”, while key spicy, fruity fatty. VOC concentration higher than fragrans. proportion odorant to TVOC 77.39 58.68 percent, respectively. tube, excellent adsorption performance alcohols low molecular weight in this study, is able capture some that cannot collect. Identification composition these species will expand substance database help establish a method investigate odorants wood. Through better understanding characteristic wooden materials used daily life could be obtained.