Qualitative Evaluation of Aromatic Herbs by Direct Head Space (GC)2 Analysis. Applications of the Method and Comparison with the Traditional Analysis of Essential Oils

Chialva, Franco; Gabri, G.; Liddle, P. A. P.; Ulian, F.

doi:10.1007/978-94-009-7642-9_14

Cited by 21 publications

(13 citation statements)

References 2 publications

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“…[17][18][19][20][21][22][23][24][25][26][27] In many samples, it has been reported that α-pinene and β-pinene were the major components. 17,18,20,[24][25][26] In recent years, several researchers also have reported that some oils of Hypericum species contained mainly sesquiterpenes, 21,27 e.g. Gudzic et al 27 reported that the oil of H. maculatum Crantz had β-farnesene (10.0%), n-undecane (8.2%), β-caryophyllene (7.6%), δ-cadinene (7.2%) and γ-muurolene (5.2%) as the main components.…”

Section: Resultsmentioning

confidence: 99%

Composition and antifungal activity of essential oils isolated from Hypericum hyssopifolium and Hypericum heterophyllum

Çakır

Kordalı

Zengin

et al. 2003

Flavour & Fragrance J

198

104

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Section: Resultsmentioning

confidence: 99%

Composition and antifungal activity of essential oils isolated from Hypericum hyssopifolium and Hypericum heterophyllum

Çakır

Kordalı

Zengin

et al. 2003

Flavour & Fragrance J

198

104

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“…[Anthemis nobilis L., Roman camomile [2]; Artemisia absinthiurn L., common wormwood [3] ; Artemisia pontica L., Roman wormwood [4]; Coriandrum sativum L., coriander [a; Mentha piperita Huds., peppermint; Satureja hortensis L., savory [6]; Hypericum perforaturn L., St. John's wort, and Teucriurn chamaedrys L., common germander [7]] However, information about the composition and the characterization of headspace volatiles is very sparse.…”

Section: Methodsmentioning

confidence: 99%

Qualitative evaluation of aromatic herbs by direct headspace GC analysis. Applications of the method and comparison with the traditional analysis of essential oils

Chialva

Gabri

Liddle

et al. 1982

J. High Resol. Chromatogr.

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SummaryGC headspace analyses of various aromatizing herbs have been compared with those relating to the essential oils, obtained by steam distillation, of the same plants. In this way it was possible to establish the most significant differences between the composition of a herb flavor and that of its essential oil. In particular, we observed some very volatile compounds in the headspace samples which were absent from the essential oil; these components may make an important contribution to the herb flavor. The identification of these substances is still in progress.

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“…Techniques commonly employed for extracting essential oils include hydrodistillation (ASTA, 1968), steam distillation (Chialva et al, 1982), solvent extraction (Burbott and Loomis, 1967), head space analysis (Chialva et al, 1982), and liquid CO 2 extraction (Takeoka et al, 1985). The composition of the extracted oil may vary from one extraction method to another.…”

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confidence: 99%

Comparison of Extraction Methods for the Rapid Determination of Essential Oil Content and Composition of Basil

Charles¹,

Simon²

1990

jashs

193

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Essential oils were extracted from leaves, flowers, and stems of Ocimum basilicurn, O. kilimandscharicum, and O. micranthum by solvent extraction, hydrodistillation, and steam distillation for essential oil content and the oil analyzed by GC and GC/MS for composition. While the yield of essential oil was consistently higher from steam distillation than hydrodistillation, a similar number of compounds was recovered from both hydrodistillation and steam distillation. Though the relative concentration of the major constituents was similar by both methods, the absolute amounts were higher with steam distillation. Essential oil content and composition varied by plant species and plant part. Essential oil content was highest in flowers for O. basilicum and in leaves for O. micranthum. No significant differences were observed in essential oil yield and relative concentration of major constituents using fresh or dry samples and using samples from 75 g to 10 g of dry plant tissue. While minor differences between hydrodistillation and steam distillation were observed, both methods resulted in high yields and good recovery of essential oil constituents. Hydrodistillation is a more-rapid and simpler technique than steam and permits the extraction of essential oil where steam is not accessible.

show abstract

Qualitative Evaluation of Aromatic Herbs by Direct Head Space (GC)2 Analysis. Applications of the Method and Comparison with the Traditional Analysis of Essential Oils

Cited by 21 publications

References 2 publications

Composition and antifungal activity of essential oils isolated from Hypericum hyssopifolium and Hypericum heterophyllum

Composition and antifungal activity of essential oils isolated from Hypericum hyssopifolium and Hypericum heterophyllum

Qualitative evaluation of aromatic herbs by direct headspace GC analysis. Applications of the method and comparison with the traditional analysis of essential oils

Comparison of Extraction Methods for the Rapid Determination of Essential Oil Content and Composition of Basil

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