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Essential oils composition is very complex, in order to identify what chemical component actually control the pest with what mode of action requires an individual extraction and testing on a specific pest.
Answering which component has what mode of action Insecticidal, Antifeedant, Repellent, Oviposition Deterrent, Growth Regulatory And Antivector Activities on which pest still can not get answered.
Chemical Extraction and Composition Analysis of 25b Essential Oils
- Chemical Extraction and Composition Analysis Methods
- Capillary gas chromatography (GC)
- Gas Chromatography
- Mass Spectrometry (MS)
- Chemometric resolution
- Olfactometry and multidimensional gas chromatography
- Enantioselective capillary gas chromatography
- Stable isotope ratio mass spectrometry
- Purity Standards of 25b Essential Oils
Adulteration of Essential Oils
- Total ion chromatogram essential oils
Extraction Methods of 25b Essential Oils
- Microwave extraction
- CSE Cold solvent extraction
- ASE accelerated solvent extraction
- SFE supercritical fluid extraction
- SPME solid-phase microextraction
Chemical Extraction and Composition Analysis Studies of 25b Essential Oils
The Extraction and Quantification of Limonene from Citrus Rinds Using GC/MS
Introduction to Gas Chromatography
Essential Oil GC/MS Testing with Dr. P
Application of Comprehensive Two-Dimensional Gas Chromatography (GC6GC) to the Qualitative Analysis of Essential Oils
This paper investigates the separation of moderately complex samples by comprehensive two-dimensional gas chromatography (GC6GC).
The analysis of spearmint (Mentha spicata) and peppermint (Mentha piperita) essential oil components, including acetates, alcohols, furans, ketones, sesquiterpenes, and terpenes, was achieved by one-dimensional gas chromatography with quadrupole mass spectrometry detection (GC/MSD) and GC6GC with flame ionization detection.
Peppermint essential oil was found to contain 89 identifiable peaks by GC6GC compared to 30 peaks in the GC/MSD chromatogram.
Likewise, 68 peaks were found in the GC6GC chromatogram of spearmint (compared to 28 in GC/MSD).
Plots of the first dimension versus second dimension retention times provided a fingerprint of the two essential oils, which revealed 52 similar compounds between the two essential oils as opposed to 18 matches by 1D GC.
Computer-aided identification of individual components of essential oils using carbon-13 NMR spectroscopy
Chemical Composition of the Essential Oils Obtained From Some Spices Widely Used in Mediterranean Region