Influence of different drying methods on drying period, essential oil content and composition of Lippia citriodora Kunth

Ebadi, Mohammad‐Taghi; Azizi, Majid; Sefidkon, Fatemeh; Ahmadi, Nima

doi:10.1016/j.jarmap.2015.06.001

Cited by 69 publications

(40 citation statements)

References 30 publications

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“…Nguyen, Vuong, Bowyer, Van Altena, and Christopher Scarlett () on Phyllanthus amarus and Hamrouni‐Sellami et al () on Laurus nobilis L. reported that infrared drying was the best method for preserving and collecting bioactive compounds. This result was in line with other studies (Ebadi, Azizi, Sefidkon, & Ahmadi, ; Rahimmalek & Goli, ).…”

Section: Resultssupporting

confidence: 93%

Qualitative and quantitative variations of the essential oils of Dracocephalum kotschyi Boiss. as affected by different drying methods

Samadi

Larijani

Badi

et al. 2018

J Food Process Preserv

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Using an appropriate drying method is the most important step in the postharvest processing of Dracocephalum kotschyi Boiss. to preserve its qualitative and quantitative essential oils. In this study, the effects of different drying techniques (sun, shade, conventional oven, vacuum oven, microwave, and infrared drying) were investigated on the essential oil content and composition of plants. Vacuum oven‐drying at 40°C was the best method for the retention of the essential oils of the samples. The essential oil was relatively sensitive to temperature, so its content was decreased with increase in the drying temperature. The results showed that oxygenated monoterpenes represented the main chemical class of essential oil components. Although the highest content of α‐pinene and geranyl acetate (as major compounds) was obtained by conventional oven‐drying at 40°C, the highest content of limonene and α‐terpineol was observed in the plants dried under the sun and by infrared drying at 0.5w/cm, respectively. Practical applications The results suggest that vacuum oven‐drying could be the best method for obtaining the highest content of essential oils from Dracocephalum kotschyi Boiss along with its major bioactive components. In addition, the microwave drying method was known as the most desirable drying method with regard to the final color of the dried products.

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Section: Resultssupporting

confidence: 93%

Qualitative and quantitative variations of the essential oils of Dracocephalum kotschyi Boiss. as affected by different drying methods

Samadi

Larijani

Badi

et al. 2018

J Food Process Preserv

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“…However, regardless of the growth environment, á-citral (29.45%), limonene (17.06%), and β-citral (16.14%) were identified as the major components. Other studies (Paulus et al, 2013b;Ebadi et al, 2015;Schmidt et al, 2016;Prochnow et al, 2017) reported similar findings on the composition of essential oil from A. triphylla.…”

Section: Chemical Characteristics Of the Essential Oilsupporting

confidence: 59%

Effect of season and irrigation on the chemical composition of Aloysia triphylla essential oil

et al. 2019

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Effect of season and irrigation on the chemical composition of Aloysia triphylla essential oil Aloysia triphylla is an aromatic plant used in several industrial sectors, owing to the chemical properties of its essential oil. Biosynthesis of organic compounds is influenced by the growth conditions. As such, temporal and spatial variation affect the chemical composition of essential oils. We hypothesized that: i) the chemical composition of A. triphylla essential oil is influenced by differences in irrigation and season; and ii) the major components of A. triphylla essential oil do not vary between treatment conditions. To test these hypotheses, we determined the chemical composition of A. triphylla essential oil as a function of four seasons crossed with four irrigation levels. A completely randomized experimental design with a randomized block in a 4 × 4 factorial scheme, representing the four seasons of the year (summer, autumn, winter, and spring) and four irrigation levels (50%, 75%, 100%, and 125% of the reference evapotranspiration), was used with four replicates. Our results show that the chemical composition of A. triphylla essential oil varied with the two study factors, of which season was the major factor. The highest concentrations of constituents classified as monoterpene and sesquiterpene were observed in the summer season, and the highest constituents of the other group of compounds were observed in winter. In addition, the major components of the essential oil were α-citral, limonene, and β-citral, and their levels were the highest during winter.

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“…The leaves of lemon verbena are utilized as seasoning for food preparations and also for flavoring beverages. Historically, the leaves been used for their strong scent as an insect repellant (Ebadi, Azizi, Sefidkon, & Ahmadi, ; Pascual, Slowing, Carretero, Mata, & Villar, ).…”

Section: Introductionmentioning

confidence: 99%

Effect of cold plasma on essential oil content and composition of lemon verbena

Ebadi

Abbasi

Harouni

et al. 2019

Food Science & Nutrition

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Cold plasma is known as a novel nonthermal processing method for decontamination of medicinal and aromatic plants ( MAP s); however, there are little research studies about its effects on active ingredients of these plants. The aim of this research was to investigate the influence of low‐pressure cold plasma ( LPCP ) treatments (1, 3, and 5 min) on the essential oil (EO) content and composition of lemon verbena leaves. The EO content was determined using hydro‐distillation, and the composition of the extracted EOs was quantified using gas chromatography and gas chromatography–mass spectrometry techniques. The results showed that by increasing the LPCP treatment duration, the EO content was reduced from 1.2 to 0.9 (% v/w). The highest content of monoterpene hydrocarbons (e.g., limonene) and oxygenated sesquiterpenes (e.g., spathulenol and globulol) was also observed in LPCP ‐treated ones, whereas the oxygenated monoterpenes (e.g., citral) content of control was measurably higher than those treated with LCPC .

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Influence of different drying methods on drying period, essential oil content and composition of Lippia citriodora Kunth

Cited by 69 publications

References 30 publications

Qualitative and quantitative variations of the essential oils of Dracocephalum kotschyi Boiss. as affected by different drying methods

Qualitative and quantitative variations of the essential oils of Dracocephalum kotschyi Boiss. as affected by different drying methods

Effect of season and irrigation on the chemical composition of Aloysia triphylla essential oil

Effect of cold plasma on essential oil content and composition of lemon verbena

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