Method for Attaining Caraway Seed Oil Fractions with Different Composition

Shiwakoti, Santosh; Poudyal, Shital; Saleh, O. M.; Astatkie, Tess; Zheljazkov, Valtcho D.

doi:10.1002/cbdv.201500190

Cited by 7 publications

(3 citation statements)

References 23 publications

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“…The specific composition of the EO fractions that were eluted at different hydrodistillation timeframes can be attributed to the different boiling points of the respective EO constituents [43,44]. The EOs are complex products and they include a number of constituents with different molecular weights and diverse temperature separation points.…”

Section: Discussionmentioning

confidence: 99%

Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana, J. excelsa, and J. sabina

et al. 2019

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The chemical profile and antioxidant capacity of Juniperus virginiana, J. excelsa, and J. sabina essential oil (EO) fractions as a function of time was the subject of this study. The hypothesis was that, capturing EO in sequential timeframes during hydrodistillation would generate fractions containing unique compositions and antioxidant capacity. In J. virginiana, the highest limonene (43%) was found in the 0–5 min oil fraction, with safrole (37%) being highest in the 10–20 and 20–40 min fractions, and elemol (34%) being highest in the 160–240 min fraction. In J. excelsa, α-pinene (34-36%) was the highest in the 0–5 min fraction and in the control (non-stop 0–240 min distillation) oil, limonene (39%) was the highest in the 0–10 min fractions and cedrol (50-53%) was the highest in the 40–240 min fractions. In J. sabina, sabinene (80%) was highest in the 0–3 min fraction. The highest antioxidant capacity of J. virginiana was demonstrated by the 5–10 min fraction; the one in J. sabina by the 3–10 min fraction; and, the one in J. excelsa, by the control. The kinetics regression models that were developed can predict EO composition of the three juniper species eluted at different timeframes. Various industries could benefit from the results from this study.

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Section: Discussionmentioning

confidence: 99%

Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana, J. excelsa, and J. sabina

et al. 2019

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“…A Hewlett Packard gas chromatograph GC, Hewlett Packard model 6890, Hewlett-Packard, Palo Alto, CA, USA was used for the analyses of the essential oil samples collected at the 8 distillation time intervals and the control distillation. The procedure for the GC analysis was described in Shiwakoti et al 35 . Briefly, the GC instrument had a GC column HPINNOWAX cross-linked PEG; 30 m 0.32 mm 0.5 μm and an auto sampler.…”

Section: Gas Chromatography Gc Analysis Of Essential Oilmentioning

confidence: 99%

Sequential Elution of Essential Oil Constituents during Steam Distillation of Hops (<i>Humulus lupulus</i> L.) and Influence on Oil Yield and Antimicrobial Activity

Jeliazkova¹,

Zheljazkov²,

Kačániová

et al. 2018

J. Oleo Sci.

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The profile and bioactivity of hops (Humulus lupulus L.) essential oil, a complex natural product extracted from cones via steam distillation, depends on genetic and environmental factors, and may also depend on extraction process. We hypothesized that compound mixtures eluted sequentially and captured at different timeframes during the steam distillation process of whole hop cones would have differential chemical and bioactivity profiles. The essential oil was collected sequentially at 8 distillation time (DT) intervals: 0-2, 2-5, 5-10, 10-30, 30-60, 60-120, 120-180, and 180-240 min. The control was a 4-h non-interrupted distillation. Nonlinear regression models described the DT and essential oil compounds relationship. Fractions yielded 0.035 to 0.313% essential oil, while control yielded 1.47%. The oil eluted during the first hour was 83.2%, 9.6% during the second hour, and only 7.2% during the second half of the distillation. Essential oil (EO) fractions had different chemical profile. Monoterpenes were eluted early, while sequiterpenes were eluted late. Myrcene and linalool were the highest in 0-2 min fraction, β-caryophyllene, β-copaene, β-farnesene, and α-humulene were highest in fractions from middle of distillation, whereas α- bergamotene, γ-muurolene, β- and α-selinene, γ- and δ-cadinene, caryophyllene oxide, humulne epoxide II, τ-cadinol, and 6-pentadecen-2-one were highest in 120-180 or 180-240 min fractions. The Gram-negative Escherichia coli was strongly inhibited by essential oil fractions from 2-5 min and 10-30 min, followed by oil fraction from 0-2 min. The strongest inhibition activity against Gram-negative Yersinia enterocolitica, and Gram-positive Clostridium perfringens, Enterococcus faecalis, and Staphylococcus aureus subs. aureus was observed with the control essential oil. This is the first study to describe significant activity of hops essential oils against Trypanosoma brucei, a parasitic protozoan that causes African trypanosomiasis (sleeping sickness in humans and nagana in other animals). Hops essential oil fractions or whole oil may be used as antimicrobial agents or for the development of new drugs.

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“…Or meridian fennel, Persian cumin, chemical composition is represented by compounds whose properties of bioequivalence and bioavailability are amplified are myrcene; limonene; α-terpinolene; trans limonene oxide; trans dihydro carvone; trans carveol; carvone; perilla alcohol; carvacrol; β-caryophyllene, etc. [13].…”

Section: Caraway (Carum Carvi)mentioning

confidence: 99%

Spice Plants and the Bioavailability of Nutrients

Butnariu¹

2018

J Bioequiv Availab

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Method for Attaining Caraway Seed Oil Fractions with Different Composition

Cited by 7 publications

References 23 publications

Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana, J. excelsa, and J. sabina

Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana, J. excelsa, and J. sabina

Sequential Elution of Essential Oil Constituents during Steam Distillation of Hops (<i>Humulus lupulus</i> L.) and Influence on Oil Yield and Antimicrobial Activity

Spice Plants and the Bioavailability of Nutrients

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