Method for Attaining Rosemary Essential Oil with Differential Composition from Dried or Fresh Material

Zheljazkov, Valtcho D.; Astatkie, Tess; Zhalnov, Ivan; Georgieva, T.

doi:10.5650/jos.ess14258

Cited by 12 publications

(8 citation statements)

References 22 publications

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“…The earlier investigations also reported significant differences in the herb's volatile oil constituents following the particular habitat of the plant variety, confirming the geographically-distributed different genotypes or the chemotypical variations [11][12][13][14]. The similar phenotypical plant pool of rosemary herbs provides altered oil yields with different proportions and the presence of constituents in oils, purely owing to different conditions of extractions, e.g., hydro-and steam-distillations, supercritical fluid, supercritical CO 2 extractions, and water microwave-assisted hydrodistillation [15][16][17][18][19]. The camphor and 1,8-cineole, the two major volatile oil constituents of rosemary herbs, are present in all plant varieties of chemo/pheno-typic, and genotypic plant variations.…”

Section: Introductionmentioning

confidence: 78%

“…The effects of various drying methodologies over volatile oil yields are an ostensibly common phenomenon. For instance, for fresh herbs and their microwave-drying, vacuum oven-drying, hot air drying, and freeze-drying, affect oil yields, the number of constituents, and quality, and they have shown substantial differences among the contents in up and down trends of yields in various drying procedures [15,16,[23][24][25][26]. The present study adds information about the natural drying of the herbs, as practiced in herbalist drying protocol, and at homes before fresh rosemary herb's storage for prolonged use or for the extraction of the oil for various medicinal and culinary uses.…”

Section: Introductionmentioning

confidence: 99%

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Drying Induced Impact on Composition and Oil Quality of Rosemary Herb, Rosmarinus Officinalis Linn

et al. 2020

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The natural drying of Rosmarinus officinalis Linn. herbs severely affects its volatile oil quality and yields, which is reported here for the first time. The oils obtained through hydrodistillation from fresh, one, two, and three-weeks dried herbs were analyzed by gas chromatography–mass spectroscopy (GC–MS) and gas chromatography–flame ionization detector (GC-FID), and the yields were 198 ± 3.45, 168.7 ± 5.11, and 97.8 ± 1.27 mg, respectively, as compared to the internal referral standard of 327 ± 5.91 mg yield of the one-week dried herbs’ oil. Camphor, the major constituent, significantly depleted from 20.96% to 13.84%, while bornyl acetate yields increased from 1.42% to 12.46% (p values < 0.0001) in three-weeks drying, reflecting the redox processes undergoing within the oil during drying. Several constituents (25) were found in one-week dried herbs’ oil as compared to the fresh, two-, and three-weeks oils, which consisted of 23, 19, and 14 constituents, respectively, leading to the recommendation of the one-week drying of the herb for maximum oil yield. The DPPH (2, 2-diphenyl-1-picryl-hydrazyl) reactivity was highest for the two- and three-weeks dried herb-based oils, followed by the one-week dried- and fresh-herb-based oils (p < 0.0001), again indicating major chemical changes during herbs’ dryings, affecting the free-radical scavenging capacity of these batches of oils obtained after different drying times.

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Section: Introductionmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Drying Induced Impact on Composition and Oil Quality of Rosemary Herb, Rosmarinus Officinalis Linn

et al. 2020

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“…The branches and leaves of rosemary contain aromatic oil (Rafael et al., 2011 ). Due to the essential oil glands located in the leaves and the flowers (Presti et al., 2005 ), rosemary essential oil is usually conducted by hydrodistillation of fresh leaves of rosemary annual flowering buds (Zheljazkov et al., 2015 ). Based on previous studies, REO is mainly located in leaves and flowers.…”

Section: Resultsmentioning

confidence: 99%

Optimization extraction of rosemary essential oils using hydrodistillation with extraction kinetics analysis

Chen

Yang

et al. 2021

Food Science & Nutrition

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Rosemary (Rosmarinus officinalis L.) is an essential perennial aromatic, evergreen shrub belonging to the family Lamiaceae and indigenous to the Mediterranean region (Naimi et al., 2017;de Oliveira et al., 2019). However, it could be found worldwide and grown widely in northern central Europe, America, and East Asia (Ahmed et al., 2016;Tigrine-Kordjani et al., 2012). This plant has a height of up to 2 m, with branches full of green leaves that exude a characteristic fragrance (de Oliveira et al., 2019). Its health benefits have been recognized since ancient times, and it is the raw material of many culinary traditions (Bellumori et al., 2015;Spadi et al., 2021). Moore et al. (2016) mentioned that Rosemary extract has antioxidant, anti-inflammatory, antidiabetic, and anticancer properties.Widespread use of rosemary is to extract the essential oil.Rosemary essential oil (REO) is a colorless or pale-yellow volatile liquid extracted from the branches and leaves with a characteristic odor. It consists mainly of monoterpenes such as 1,8-cineole,

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“…Drying at increased temperatures may also result in more intense degradation of the cell wall and plasma membrane, which may exert an effect on plasma membrane permeability [ 84 ]. In contrast, greater amounts of essential oil from dried flowers were extracted by, e.g., Zheljazkov et al [ 85 ], Mashkani et al [ 86 ], and Silva et al [ 87 ].…”

Section: Discussionmentioning

confidence: 99%

“…Large amounts of this compound have also been identified in oil from L. maculatum aerial parts [ 109 ]. This component exhibits antimicrobial [ 85 ], antifungal [ 110 ], and insecticidal properties [ 111 , 112 ] and induces apoptosis of neoplastic cells [ 113 ].…”

Section: Discussionmentioning

confidence: 99%

Histochemical and Phytochemical Analysis of Lamium album subsp. album L. Corolla: Essential Oil, Triterpenes, and Iridoids

et al. 2021

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The aim of this study was to conduct a histochemical analysis to localize lipids, terpenes, essential oil, and iridoids in the trichomes of the L. album subsp. album corolla. Morphometric examinations of individual trichome types were performed. Light and scanning electron microscopy techniques were used to show the micromorphology and localization of lipophilic compounds and iridoids in secretory trichomes with the use of histochemical tests. Additionally, the content of essential oil and its components were determined using gas chromatography-mass spectrometry (GC-MS). Qualitative analyses of triterpenes carried out using high-performance thin-layer chromatography (HPTLC) coupled with densitometric detection, and the iridoid content expressed as aucubin was examined with spectrophotometric techniques. We showed the presence of iridoids and different lipophilic compounds in papillae and glandular and non-glandular trichomes. On average, the flowers of L. album subsp. album yielded 0.04 mL/kg of essential oil, which was dominated by aldehydes, sesquiterpenes, and alkanes. The extract of the L. album subsp. album corolla contained 1.5 × 10−3 ± 4.3 × 10−4 mg/mL of iridoid aucubin and three triterpenes: oleanolic acid, β-amyrin, and β-amyrin acetate. Aucubin and β-amyrin acetate were detected for the first time. We suggest the use of L. album subsp. album flowers as supplements in human nutrition.

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Method for Attaining Rosemary Essential Oil with Differential Composition from Dried or Fresh Material

Cited by 12 publications

References 22 publications

Drying Induced Impact on Composition and Oil Quality of Rosemary Herb, Rosmarinus Officinalis Linn

Drying Induced Impact on Composition and Oil Quality of Rosemary Herb, Rosmarinus Officinalis Linn

Optimization extraction of rosemary essential oils using hydrodistillation with extraction kinetics analysis

Histochemical and Phytochemical Analysis of Lamium album subsp. album L. Corolla: Essential Oil, Triterpenes, and Iridoids

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