University of PardubiceFaculty of Chemical Technology

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Possibilities of isolation and extraction of volatile compounds from plant matrices

Authors: Bajerová Petra | Bajer Tomáš | Ventura Karel

Year: 2021

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Possibilities of isolation and extraction of volatile compounds from plant matrices	Sample preparation step like extraction is a crucial step of an analytical method and very often it is the most time consuming step and also a source of many errors. We can differentiate between conventional techniques for the extraction of plant matrices (such as Soxhlet extraction, hydrodistillation or steam distillation and others). These techniques are time and solvent consuming and the analysis of numerous samples is limited by the extraction step. Among all conventional techniques for isolation and extraction possibilities, other non-conventional techniques like supercritical fluid extraction, pressurised hot water extraction, pressurized liquid extraction and solid-phase microextraction represents a good choice. Optimization of each extraction technique and its parameters affecting the extraction yield is a very important step and saves cost and time. Gas chromatography-mass spectrometry is used for separation, detection, and identification of volatile compounds. Calculation of the retention index is done for each observed peak and volatile compounds are identified by comparison of mass spectral fragmentation patterns stored in MS data libraries and verified by comparison of retention indices of identified compounds to published data and/or RI from MS data libraries.	extraction, natural product, optimisation, GC/MS