Comparison of simultaneous distillation extraction and solid-phase microextraction for the determination of volatile flavor components

Gas chromatography–mass spectrometry analysis of volatile compounds from Houttuynia cordata Thunb after extraction by solid-phase microextraction, flash evaporation and steam distillation

“…The first was to determine the effect of the absorption temperature and time on extraction efficiency. First, the sample (2.0 g) of 125 m particle size was hermetically sealed in an 8 mL vial, then SPME fibre was suspended in the HS and equilibrated for nine different time ranges of 5,10,15,20,25,30,40,50 and 60 min in a thermostatic bath, which was set at the temperature of either 40, 50, 60, 80 or 100 • C. Only that part of the vial with the solid matrix was submerged, to keep the SPME fibre as cool as possible to improve the vapour phase/absorbent fibre coating partition coefficient [18]. The second group of experiments was performed to establish the effect of headspace volume on extraction efficiency.…”

“…The complex and time-consuming process for the preparation of samples sometimes further complicates the analytical results due to more influencing factors involved. Solid-phase microextraction (SPME) developed by Pawliszyn and coworkers in 1989, is a solventless extraction technique widely used in application of extraction from plants, food, biological and environmental samples [2][3][4][5][6]. SPME has diminished decomposition of plant compounds and cells, minimized activity of enzyme, and decreasing loss of those constituents.…”

Head Space Solid Phase Micro-Extraction (HS - SPME) of volatile organic compounds produced by Sporidiobolus salmonicolor (CBS 2636)

“…Head Space SPME has an advantage of being a non-destructive technique and allows the evaluation of the samples at different experimental conditions (PAWLISZYN, 1999). This technique has been widely used in phenolic compound analysis (BUCHHOLZS; PAWLISZYN, 1994), aroma compounds found in fruits and juices (ZHANG; ZENG; LI, 2006;LIU;YANG, 2002), volatile compounds found in plant leaves or flowers (XIE; SUN;YU, 2006;PÉREZ et al, 2002;XIONG et al, 2003;KATAOKA;LORD;PAWLISZYN, 2000;BARRIONUEVO;LANÇAS, 2001), and in the analysis of organophosphorous pesticides present in aqueous solutions (BARRIONUEVO;LANÇAS, 2001). …”

Effects of CO2 pretreatment on the volatile compounds of dried Chinese jujube (Zizyphus jujuba Miller)

“…The repeatability of simultaneous distillation extraction (SDE) is greater than that of other methods (Wang et al, 2014;Hernández et al, 2016). Therefore, it is considered as the most reliable method for the quantitative analysis of volatile compounds (Cai et al, 2001). Other studies mainly report on the characteristics of the shape and type of species.…”