Efficiency of the optimized microwave assisted extractions on the yield, chemical composition and biological activities of Tunisian Rosmarinus officinalis L. essential oil

Farhat, Asma; Benmoussa, Hasnia; Bachoual, Rafik; Nasfi, Zina; Elfalleh, Walid; Romdhane, Mehrez; Bouajila, Jalloul

doi:10.1016/j.fbp.2017.07.011

Cited by 49 publications

(33 citation statements)

References 34 publications

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“…In the composition of our R. officinalis essential oil, α-pinene (24.9%), verbenol (8.5%), verbenone (8.5%), and 1,8cineol (8.2%) are the main components. Our results agree with many different studies where it has been reported that α-Pinene and 1,8-cineol dominated in R. officinalis essential oil [7,[13][14][15][16][17]. Farhat have found also camphor (14.5-20.4%) and myrtenal (4.3-7.4%) that in our essential oil are present in low percentage or are absent [13].…”

supporting

confidence: 93%

“…Our results agree with many different studies where it has been reported that α-Pinene and 1,8-cineol dominated in R. officinalis essential oil [7,[13][14][15][16][17]. Farhat have found also camphor (14.5-20.4%) and myrtenal (4.3-7.4%) that in our essential oil are present in low percentage or are absent [13]. Odjeda-Sana have reported α-pinene (31.2%) as the main constituent of R. officinalis (wide phenotype) essential oil from Argentina; other compounds were 1,8-cineol (21.6%), borneol (4.2%) e camphor (7.0%) [14].…”

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confidence: 93%

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Chemical Composition and Phytotoxic Activity of Rosmarinus officinalis Essential Oil

Caputo

Trotta

Angelica

et al. 2018

Natural Product Communications

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In this study we determined the chemical composition of R. officinalis essential oil and evaluated its possible phytotoxic activity. The chemical composition of the essential oil was studied by GC and GC-MS analyses. A total of 57 compounds were identified and the main components are α-pinene (24.9%), verbenol (8.5%), verbenone (8.5%), 1,8-cineol (8.2%) and isoborneol (8.1%). Moreover, the essential oil and its main constituents, α-pinene and 1,8-cineol,were evaluated for their possible in vitro phytotoxic activity against germination and initial radical growth of radish (Raphanus sativus L.), rue (Ruta graveolens L.), lettuce (Lactuca sativa L.) and tomato (Solanum lycopersicum L.). The results showed thatboth germination and radical elongation were sensitive to the oil but not in the same way to α-pinene and 1,8-cineol. The oil influences in different ways radical elongation of R. sativus, R. graveolens, and L. sativa and the germination of S. lycopersicum. Instead α-pinene influenced only radical elongation of lettuce.

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confidence: 93%

supporting

confidence: 93%

Chemical Composition and Phytotoxic Activity of Rosmarinus officinalis Essential Oil

Caputo

Trotta

Angelica

et al. 2018

Natural Product Communications

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“…The search of green extraction technology with superior efficiency (ie cost-effective, sustainable and capable of producing the essential oil with the same characteristics) and more environment friendly (ie reduction of CO 2 emission and waste water) is very important in all countries worldwide to meet the challenges of the 21 st century (1)(2)(3). The solvent-free microwave extraction (SFME), an innovative clean and efficient technique, has recently gained popularity for isolating the essential oils of different plant parts (bark, flower, leaf) of many scented plants (2)(3)(4)(5)(6)(7)(8). The principle in the extraction of this technique combines both microwave heating and dry-distillation for extraction the volatiles at the atmospheric pressure (7).…”

Section: Introductionmentioning

confidence: 99%

Boosting the essential oil yield from the rhizomes of cassumunar ginger by an eco-friendly solvent-free microwave extraction combined with central composite design

Yingngam

Brantner

2018

Journal of Essential Oil Research

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This study aimed to apply the solvent-free microwave extraction (SFME) for isolating the essential oil from the rhizomes of cassumunar ginger and study the kinetic mechanism during the extraction process by light microscopy. A central composite design was employed to evaluate the influence of the key variables including microwave power and irradiation time on the oil recovery. The optimal process conditions of SFME were irradiation of the sample at 700 W for 70 min. Microwave power had the most significant effect on the oil recovery (p < 0.001), followed by irradiation time (p < 0.01). The major volatile constituents in the oil obtained under the optimal conditions were sabinene, terpinen-4-ol, and (E)-1-(3,4-dimethoxyphenyl) butadiene with a higher amount of the oxygenated compounds compared to those isolated by a conventional hydrodistillation (HD). Isolating the essential oil by SFME showed a complete extraction with higher plant cell rupture and was quicker than HD.

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“…Literature data confirm the superiority of the microwave assisted hydrodistillation over conventional hydrodistillation. In previous studies, microwave-assisted hydrodistillation was carried out on such materials as ginger [ 12 ], lemongrass [ 12 ], rosemary [ 14 , 15 ], cinnamon [ 8 , 16 ], mint [ 10 ], thyme [ 9 ], sandalwood [ 11 ], and orange [ 17 ]. However, there is no information available on the use of microwave hydrodistillation in order to obtain essential oils from hop extracts, and also to compare this method with hydrodistillation with the example of the mentioned materials.…”

Section: Introductionmentioning

confidence: 99%

Essential Oils from Humulus Lupulus scCO2 Extract by Hydrodistillation and Microwave-Assisted Hydrodistillation

et al. 2018

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Two different extraction methods were used for a comparative study of essential oils obtained from the Humulus lupulus scCO2 (sc-supercritical) extract: microwave-assisted hydrodistillation (MAHD) and conventional hydrodistillation (HD). As a result, the best conditions for the maximum essential oil production were determined for the MAHD method at 335 W microwave power for 30 min at water to raw material ratio of 8:3. The obtained essential oils were enriched in β-myrcene in the amount of 74.13%–89.32% (wt%). Moreover, the first application for determination of the above-mentioned volatile compounds by supercritical fluid chromatography (SFC) with photo-diode array detection (PDA) is presented, which in comparison with gas chromatography coupled with mass spectrometry (GC-MS/MS) resulted in similar values for β-myrcene and α-humulene in obtained samples within less than 1 min.

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Efficiency of the optimized microwave assisted extractions on the yield, chemical composition and biological activities of Tunisian Rosmarinus officinalis L. essential oil

Cited by 49 publications

References 34 publications

Chemical Composition and Phytotoxic Activity of Rosmarinus officinalis Essential Oil

Chemical Composition and Phytotoxic Activity of Rosmarinus officinalis Essential Oil

Boosting the essential oil yield from the rhizomes of cassumunar ginger by an eco-friendly solvent-free microwave extraction combined with central composite design

Essential Oils from Humulus Lupulus scCO2 Extract by Hydrodistillation and Microwave-Assisted Hydrodistillation

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