Chemical Composition of the Essential Oil and Headspace Solid-Phase Microextraction of the Guava Fruit (Psidium guajava L.)

The chemical composition of essential oil and volatile obtained from the roots ofJatropha ribifolia(Pohl) Baill was performed in this work. The Clevenger extractor was utilized in hydrodistillation of oil and chemical composition determined by gas chromatography coupled with mass spectrometry detector (GC-MS). The identification of compounds was confirmed by retention index (Kovats index) obtained from a series of straight chain alkanes (C7–C30) and by comparison with NIST and ADAMS library. A total of 61 compounds were identified in essential oil by GC-MS. The extraction of volatile was performed also by the use of the solid phase microextraction (SPME) with four different fibers. The essential oil extraction was extremely rapid (15 s) to avoid saturation of the fiber and the MS detector. The majority of the composition of essential oil is the terpenes:β-pinene (major compound 9.16%),β-vatirene (8.34%),α-gurjunene (6.98%),α-pinene (6.35%), camphene (4.34%), tricyclene (3.79%) and dehydro aromadendrene (3.52%) it and aldehydes and alcohols. Through the SPME it was possible to determine the nine volatile compounds not identified in oil 2,3,4-trimethyl-2-cyclopenten-1-one,α-phellandrene, 3-carene, trans-p-mentha-2,8-dienol, pinocamphone, D-verbenon, 1,3,3-trimethyl-2-(2-methyl-cyclopropyl)-cyclohexene, 2,4-diisocyanato-1-methylbenzene, and (6-hydroxymethyl-2,3-dimethylehenyl) methanol.

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An Analysis of Volatile Components of the Liverworts Dumortiera hirsuta subsp. hirsuta and Dumortiera hirsuta subsp. nepalensis (Dumortieraceae) from Panama and Taxonomic Observations on the Species

Natural Product Communications ◽

10.1177/1934578x1801300827 ◽

2018 ◽

Vol 13 (8) ◽

pp. 1934578X1801300 ◽

Cited By ~ 1

Author(s):

Armando A. Durant-Archibold ◽

Noris Salazar Allen ◽

Anette Garrido ◽

Jose Gudiño Ledezma ◽

Mahabir P. Gupta

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Chemical Composition ◽

Solid Phase Microextraction ◽

Solid Phase ◽

Gas Chromatography Mass Spectrometry ◽

Volatile Components ◽

Chemical Markers ◽

Headspace Solid Phase Microextraction ◽

First Time

We report for the first time the chemical composition of volatile components (VOCs) of two subspecies, D. hirsuta subsp. hirsuta and D. hirsuta subsp. nepalensis, of the liverwort Dumortiera hirsuta from Panama by using headspace-solid phase microextraction-gas chromatography-mass spectrometry in order to assess distinguishing markers between the two species. Forty VOCs were identified in total for both subspecies. Of these, 34 are reported for the first time in D. hirsuta. Furthermore, both subspecies showed clear differences in the type and amount of VOCs. The major compounds in D. hirsuta subsp. hirsuta were α-gurjunene, β-selinene, α-guaiene, α-humulene and β-caryophyllene; while in D. hirsuta subsp. nepalensis were ledene, α-gurjunene, β-caryophyllene and α-guaiene, respectively. Two oxygenated sesquiterpenes, globulol and nerolidol, could be considered as possible distinguishing chemical markers between these two subspecies. We conclude that both morphotypes of D. hirsuta are chemically different.

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Comparison of Static Headspace, Headspace Solid Phase Microextraction, Headspace Sorptive Extraction, and Direct Thermal Desorption Techniques on Chemical Composition of French Olive Oils

Journal of Agricultural and Food Chemistry ◽

10.1021/jf034834n ◽

2003 ◽

Vol 51 (26) ◽

pp. 7709-7716 ◽

Cited By ~ 126

Author(s):

Jean-François Cavalli ◽

Xavier Fernandez ◽

Louisette Lizzani-Cuvelier ◽

André-Michel Loiseau

Keyword(s):

Chemical Composition ◽

Thermal Desorption ◽

Solid Phase Microextraction ◽

Solid Phase ◽

Static Headspace ◽

Headspace Solid Phase Microextraction ◽

Olive Oils ◽

Sorptive Extraction ◽

Direct Thermal Desorption

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Fast Quality Assessment of German Chamomile (Matricaria chamomilla L.) by Headspace Solid-Phase Microextraction: Influence of Flower Development Stage

Natural Product Communications ◽

10.1177/1934578x1200700133 ◽

2012 ◽

Vol 7 (1) ◽

pp. 1934578X1200700 ◽

Cited By ~ 1

Author(s):

Mohammad Rafieiolhossaini ◽

An Adams ◽

Hamid Sodaeizadeh ◽

Patrick Van Damme ◽

Norbert De Kimpe

Keyword(s):

Essential Oil ◽

Quality Assessment ◽

Flower Development ◽

Solid Phase Microextraction ◽

Solid Phase ◽

Rapid Screening ◽

Volatile Components ◽

Matricaria Chamomilla ◽

Headspace Solid Phase Microextraction ◽

Development Stages

For an adequate quality evaluation of aromatic plants grown under different conditions, a rapid, simple and sensitive method for the analysis of volatile constituents is indispensable. The main objective of the present study was to compare fast screening of German chamomile ( Matricaria chamomilla L.) by means of headspace solid-phase microextraction (HS-SPME) with conventional isolation of the essential oil (steam distillation-solvent extraction (SDSE)) for the differentiation of chamomile essential oil constituents. Flowers were harvested at two distinct development stages: stage I, when ligulate flowers start to develop and tubular flowers are still closed, and stage II, when tubular flowers are partially to completely opened. Dried chamomile flowers at two development stages were extracted by means of both SDSE and HS-SPME, followed by GC-MS analysis. Among 30 compounds detected, ( E)-β-farnesene (49%), artemisia ketone (10%) and germacrene D (9%) were the predominant volatile components in the HS-SPME-extract, while α-bisabolol oxide A (42%), chamazulene (21%) and ( Z)-spiroether (8%) were the main essential oil constituents among the 13 compounds obtained by SDSE. After statistical analysis of the data, both techniques enabled the same conclusion: ( E)-β-farnesene was the only compound which showed significant differences between the two flower development stages. These results suggest that HS-SPME-GC-MS can be used as a sensitive technique for the rapid screening and quality assessment of M. chamomilla.

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