| Title: | GC/MS analysis of volatiles obtained by headspace solid-phase microextraction and simultaneous-distillation extraction from Rabdosia serra (MAXIM.) HARA leaf and stem |
| Author(s): | Lin L; Zhuang M; Lei F; Yang B; Zhao M; |
| Address: | "College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China" |
| DOI: | 10.1016/j.foodchem.2012.08.048 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "Volatiles in Rabdosia serra were investigated by headspace solid phase microextraction (HS-SPME) and simultaneous-distillation extraction (SDE). The HS-SPME technique was previously evaluated to optimise sampling conditions. A total of 56 and 48 compounds including alcohols, aldehydes, hydrocarbons, ketones, carboxylic acid, ester, and aromatics were identified in leaf and stem by optimised HS-SPME method (CAR/PDMS fibre; incubation time, 10 min; extraction temperature, 50 degrees C; extraction time, 40 min), respectively. 1-Octen-3-ol and (2E)-hexenal had significant contribution to R. serra aroma. Cluster analysis indicated that leaf and stem exhibited different volatile diversity. Air drying was favourable for the retention of the volatiles, while freeze- and sun-drying led to the loss of volatiles. SDE method preferred to the analysis of compounds with low volatility including fatty acids and esters. HS-SPME was a useful technique for the analysis of readily volatile components for the characteristics of R. serra aroma" |
| Keywords: | Distillation/*methods Gas Chromatography-Mass Spectrometry/methods Isodon/*chemistry Plant Extracts/*analysis/*isolation & purification Plant Leaves/chemistry Plant Stems/chemistry Solid Phase Microextraction/*methods Volatile Organic Compounds/*analysis/; |
| Notes: | "MedlineLin, Lianzhu Zhuang, Mingzhu Lei, Fenfen Yang, Bao Zhao, Mouming eng Comparative Study Research Support, Non-U.S. Gov't England 2012/11/06 Food Chem. 2013 Jan 15; 136(2):555-62. doi: 10.1016/j.foodchem.2012.08.048. Epub 2012 Aug 30" |
