scholarly journals Analysis of cannabis components by growth stage using solid-phase microextraction and solvent extraction

2019 ◽  
Vol 24 (2) ◽  
pp. 135-145
Author(s):  
Tomoya Kudo ◽  
Akio Kiguchi ◽  
Hiroshi Fujii
Keyword(s):  
Solvent Extraction ◽  
Solid Phase Microextraction ◽  
Growth Stage ◽  
Solid Phase

Aromatic Constituents from Chinese Traditional Smoke-cured Bacon of Mini-pig

2008 ◽  
Vol 14 (4) ◽  
pp. 329-340 ◽  
Author(s):  
J.-C. Xie ◽  
B.-G. Sun ◽  
S.-B. Wang
Keyword(s):  
Solvent Extraction ◽  
Phenolic Compounds ◽  
Lipid Oxidation ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Active Regions ◽  
Volatile Composition ◽  
Headspace Solid Phase Microextraction ◽  
Unsaturated Aldehydes

Volatile composition of Chinese traditional smoke-cured bacon of Mini-pig breed was first characterized. Both headspace solid phase microextraction (SPME) and simultaneous distillation and solvent extraction (SDE) were performed. SDE exhibited efficiency in the extraction of representative aromatic volatiles especially the phenolic smoky flavors from the bacon sample. In total, 104 different components were found with the major quantity and kinds of aromas being the volatile saturated and unsaturated aldehydes from lipid oxidation and the phenolic compounds from smoke. Olfactory evaluation (GC-O) of the SDE extract revealed five basic odor patterns pertaining to 53 odor active regions and 47 odorants. Some key flavors accounting for the bacon aroma were (E, E)-2, 4-decadienal, 3-(methylthio) propanal, 2-furanmethanol, guaiacol, 3-ethylphenol and 2, 5-dimethylpyrazine.

scholarly journals Comparison of Solid-Phase Microextraction, Supercritical Fluid Extraction, Steam Distillation, and Solvent Extraction Techniques for Analysis of Volatile Consituents in Fructus Amomi

2005 ◽  
Vol 88 (2) ◽  
pp. 418-423 ◽  
Author(s):  
Shun Shen ◽  
Yunfei Sha ◽  
Chunhui Deng ◽  
Daxi Fu ◽  
Jiakuan Chen ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Solid Phase Microextraction ◽  
Steam Distillation ◽  
Solid Phase ◽  
Gas Chromatography Mass Spectrometry ◽  
Extraction Temperature ◽  
Fluid Extraction ◽  
Volatile Constituents

Abstract Four sampling techniques, solid-phase microextraction (SPME), supercritical fluid extraction (SFE), steam distillation (SD), and solvent extraction (SE), were compared for the analysis of volatile constituents from a traditional Chinese medicine (TCM) of the dried ripe fruit of Fructus Amomi (Sha Ren). A total of 38 compounds were identified by gas chromatography/mass spectrometry. Different SFE and SPME parameters (modifier content, extraction pressure, and temperature for SFE and fibers, extraction temperature, and time for SPME) were studied. The results by SFE and SPME were compared with those obtained by conventional SD and SE methods. The results showed that SFE and SPME are better sample preparation techniques than SD and SE. Due to SFE's requirement for expensive specialized instrumentation, the simplicity, low cost, and speed of SPME make it a more appropriate technique for extraction of volatile constituents in TCMs.

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