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Artemisia; additive effect; cineole; detection limit; fractionation; gas chromatography; grapes; harvest date; high performance liquid chromatography; invasive species; mass spectrometry; menthol; odor compounds; odors; olfactometry; plants (botany); red wines; small fruits; sweet peppers; vineyards
Abstract:
... The aromatic descriptor “green”, reflecting grape unripeness in French red wines, is frequently associated with the levels of 3-alkyl-2-methoxypyrazines, particularly 3-isobutyl-2-methoxypyrazine (IBMP), which has bell pepper nuances. Nevertheless, not all green aromatic expressions in red wines correlate with 3-alkyl-2-methoxypyrazine concentrations. This study considered sensory and chemical app ...
Ribes nigrum; black currants; cineole; cultivars; esters; frozen fruit; frozen storage; fruits; gas chromatography-mass spectrometry; isomerization; odors; raw fruit; sensory evaluation; volatile compounds
Abstract:
... Volatile constituents of fresh blackcurrant (Ribes nigrum L.) berries were isolated via vacuum-headspace extraction and analyzed by capillary gas chromatography–mass spectrometry. In agreement with previous studies with frozen fruits, short-chain esters and terpenes were major compound classes. However, rather high concentrations of C₆-compounds (e.g., (E)-hex-2-enal, (Z)-hex-3-enal) constituted a ...
Uvaria; alpha-phellandrene; benzyl benzoate; chemical composition; cineole; essential oils; eugenol; gas chromatography-mass spectrometry; hydrodistillation; ionization; leaves; limonene; sesquiterpenoids; Vietnam
Abstract:
... The chemical constituents of essential oils hydrodistilled from the leaves of Uvaria grandiflora Roxb. ex Hornem. and Uvaria microcarpa Champ. ex Benth. grown in Vietnam were identified by the techniques of gas chromatography-flame ionisation detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS). A total of 29 and 13 compounds, representing 96.5 % and 99.9 % of the total oil contents ...
... Monogenean parasites are important ectoparasites of fish, and are responsible for severe economic impacts in the aquaculture industry. They are usually treated with chemicals, but the chemicals can have harmful side effects in the fish and may pose threats to human health. Rosemary (Rosmarinus officinalis) is a common medicinal herb, with antimicrobial and antitumor properties. Here, we examined t ...
... Context: Nothing could be found in the literature concerning Cinnamomum glanduliferum (Wall) Meissn (Lauraceae) bark (CG) in Egypt. Objective: To investigate CG volatile oil chemically and its anti-inflammatory and gastroprotective effects. Materials and methods: Essential oils were investigated by GC-MS. Leaves oil was assessed at doses of 250, 500 and 1000 mg/kg for its anti-inflammatory effect ...
... Add-on therapies with the monoterpene 1,8-cineole were shown to be effective in controlled studies, on asthma and chronic obstructive pulmonary diseases (COPD) We hypothesized, that 1,8-cineole (C) can improve steroid effects when combined with guideline medications (budesonide (BUD), formoterol (F)) for asthma and COPD.Peripheral blood monocytes of 12 healthy volunteers were isolated and stimulat ...
... Three bacterial isolates were isolated from infected potato tubers showing soft and brown rots like symptoms as well as one isolate from infected peach tree showing crown gall symptom. The morphological, biochemical and molecular assays proved that bacterial isolates belonging to Pectobacterium carotovorum subsp. carotovorum, Ralstonia solanacearum, Dickeya spp. and Agrobacterium tumefaciens. The ...
... The honeybee disease nosemosis type C is a serious problem since its causative agent, microsporidium Nosema ceranae, is widespread among adult honey bees. Some of the feasible alternative treatments that are used to control this disease are plant extracts. The aim of the present work was to evaluate the effects of essential oils of Chilean plant species, such as Cryptocarya alba, which is used aga ...
... Sous vide cook‐chill (SVCC) is characterized by vacuum‐packaging raw or partially prepared foods before pasteurization, followed by rapid chilling and storage below 3C. The application of essential oils (EOs) to food products is a suitable strategy to control pathogens and to extend their shelf life by reducing microbial levels and oxidative processes. The aim of this study was to evaluate the eff ...
... Extracts from medicinal plants have been reported to possess good antimicrobial properties, but a majority of them remain unexplored. This study aimed at identifying a novel plant extract with antimicrobial activity, to validate its efficacy in food model, and to elucidate its composition and antimicrobial mechanism. A total of 125 plant extracts were screened, and Cinnamomum javanicum leaf and st ...
Tiago Rodrigues Leite; Maria Arlene Pessoa da Silva; Antônio Carlito Bezerra dos Santos; Henrique Douglas Melo Coutinho; Antonia Eliene Duarte; José Galberto Martins da Costa
Candida albicans; Candida krusei; Candida tropicalis; Croton; Escherichia coli; Klebsiella pneumoniae; Pseudomonas aeruginosa; Staphylococcus aureus; alpha-pinene; amikacin; amphotericin B; antibacterial properties; antifungal properties; cedrol; chemical analysis; chemical constituents of plants; cineole; drugs; essential oils; gas chromatography-mass spectrometry; gentamicin; leaves; minimum inhibitory concentration; neomycin; nystatin; oils; pain; sales; spectrometers; synergism; Brazil
Abstract:
... Context: Croton sp. are plants with a well-reported antimicrobial activity. Croton limae A.P. Gomes, M.F. Sales P.E. Berry (Euphorbiaceae), known as ‘marmeleiro-prateado’, is commonly used to manage abdominal pain in Brazil. Objective: This work evaluates the phytochemical composition, antimicrobial and modulatory activities of the essential oil of C. limae leaves (EOCL). Materials and methods: Th ...
... Rosemary (Rosmarinus officinalis) is an aromatic shrub belonging to the Lamiaceae family and widely used as herbal remedy and spices. In this work, the leaf essential oil from seven populations of rosemary growing in Western Iran was obtained by hydrodistillation and analyzed by GC-FID and GC–MS. The major chemical groups occurring in the essential oils were monoterpene ketones (14.55–37.31%), hyd ...
... Mint family is considered of great importance all over the world with increasing needs for cultivation under controlled environment, but only narrow information is available about their response in relation to potassium supplementation. The present study determines the effects of different potassium levels (K: 275–300–325–350–375mg/L) on the morphological and biochemical characteristics of spearmi ...
... This study aims to investigate the antioxidant effect of aromatic volatiles of three common aromatic plants, Lavandula dentata, Mentha spicata, and M. piperita. In this study, kunming mice subjected to low oxygen condition were treated with the volatiles emitted from these aromatic plants through inhalation administration. Then the blood cell counts, and the activities and gene expressions of anti ...
... Varroa destructor (Anderson & Trueman, 2000) causes the most important parasitosis of beekeeping in the world. For this reason, prevention is needed to avoid colony death. The most typical treatments involve synthetic acaricides. However, the use of these acaricides results in the emergence of resistant populations of mites to these products and in the appearances of drug residues in products of t ...
... Eucalyptus oil is produced from a number of “oil mallee” species with high concentration of foliar essential oils, high proportion of 1,8-cineole and the ability to re-sprout with multiple stems from lignotubers after coppicing. Eucalyptus polybractea is one of the most planted mallees in Australia, but few efforts have been made to improve crop yields through selection or breeding programs, with ...
... York gum (Eucalyptus loxophleba Benth) is widely planted in semi-arid regions of Australia for the production of Eucalyptus oil, a mixture of terpenes dominated by the monoterpene 1,8-cineole. Increasing oil yield in this species would improve the profitability of this crop and enhance its use in sustainable land management systems in Australia. To this end, we sequenced ten structural genes in th ...
Rosmarinus officinalis; acetates; antioxidant activity; ascorbic acid; beta-caryophyllene; borneol; camphor; chemical composition; cineole; essential oils; gas chromatography-mass spectrometry; hydrodistillation; oils; particle size; rosemary; steam distillation; temperature
Abstract:
... Essential oil of rosemary was obtained by supercritical CO2-extraction (SCE), hydrodistillation (HYDRO), and steam distillation (SD). Quantity of oil, antioxidant activity, and chemical composition (gas chromatography-mass spectrometry, GC-MS) of the essential oils were evaluated. For SCE, oil was obtained at two temperatures (40 and 50 °C) and two pressures (10.34 and 17.24 MPa) using a rosemary ...
... Three fungal endophytes from the genus Nodulisporium were studied for volatile organic compound (VOC) production. All three fungi grew on a wide range of carbon substrates ranging from simple sugars to waste biomass sources. The fungi synthesized a number of long and short-chain VOCs, including eucalyptol; 1-butanol, 3-methyl; 1-octen-3-ol; and benzaldehyde, all with potential applications as biof ...
Lavandula latifolia; acetates; adenocarcinoma; anticarcinogenic activity; chemical composition; cineole; cytotoxicity; epithelium; essential oils; human cell lines; humans; hybrids; linalool; scanning electron microscopes; shrubs
Abstract:
... Lavender is an aromatic evergreen shrub diffused in the Mediterranean basin appreciated since antiquity. The genus Lavandula is part of Lamiaceae family and includes more than 20 species, among which true lavender (L. vera D.C. or L. angustifolia Miller.) and spike lavender (L. latifolia Medikus); there are also numerous hybrids known as lavandins (L. hybrida Rev.). L. vera, spike lavender and sev ...
... As the personal care industry evolves, formulators are seeking innovative solutions for their formulations' needs, and for ingredients that can offer multiple functions within formulations. Considering that essential oils (EOs) may present a wide spectrum of biological activities, the composition, antimicrobial and antioxidant activity of Portuguese Thymbra capitata, Thymus caespititius and Myrtus ...
Croton; acaricidal properties; beta-caryophyllene; caatinga; chemical composition; cineole; ecosystems; essential oils; gas chromatography-mass spectrometry; leaves; principal component analysis; semiarid zones; stems; toxicity; Brazil
Abstract:
... Essential oils from the stems and leaves of Croton rhamnifolioides Pax and Hoffm from three locations in the semiarid region of the state of Pernambuco, Brazil, were investigated. Seventy constituents were identified by gas chromatography-mass spectrometry (GC-MS) of the oils from the municipalities of Serra Talhada (ST), Buíque (BU) and Floresta (FL), representing 97.99±1.03% and 97.12±0.94% of t ...
Tatiana M. Vieira; Herbert J. Dias; Talita C.T. Medeiros; Carlismari O. Grundmann; Milton Groppo; Vladimir C. G. Heleno; Carlos H.G. Martins; Wilson R. Cunha; Antônio E. M. Crotti; Eliane O. Silva
Artemisia absinthium; Streptococcus mitis; Streptococcus mutans; antibacterial properties; bacteria; camphor; chemical composition; cineole; essential oils; gas chromatography-mass spectrometry; germacrene; leaves; minimum inhibitory concentration; pathogens; Brazil
Abstract:
... This study reports on the chemical composition and antimicrobial activity of the essential oil from Artemisia absinthium L. leaves AA EO collected in Brazil against a representative panel of cariogenic bacteria. The minimum inhibitory concentrations MICs were determined by the broth dilution method in 96-well microplates. AA EO was inactive against most of the investigated oral pathogens, but it d ...
... The aerial parts of wild Achillea wilhelmsii C. Koch and A. kellalensis Boiss. & Hausskn. (Asteraceae family) were collected from Southwestern Iran provinces. The essential oils obtained by steam distillation from fine powder of the leaves and flowers of the two Achillea species have been analyzed by GC and GC-MS. The oil yield varied of 0.23 to 0.68% dry matter. The variations in chemical composi ...
... The composition of essential oils from leaves of Kazakhstan medicinal plants was analysed by GC-MS. The major compounds identified were 1,8-cineole (34.2%), myrcene (19.1%) and α-pinene (9.4%) in Ajania fruticulosa ; 1,8-cineole (21.0%), β-thujone (11.0%), camphor (8.5%), borneol (7.3%) and α-thujone (6.5%), in Achillea nobilis ; camphor (47.3%), 1,8-cineole (23.9%), camphene (9.8%) and β-thujone ...
... The chemical composition of the essential oils from the leaves and fruit of Eucalyptus camaldulensis grown in Mersin, Turkey was analyzed using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) techniques. The biological activities (antibacterial and antifungal) were examined using the agar well diffusion method. The main leaf oil constituents were p-cymene (42.1%), eucalypt ...
viridiflorol; chemical composition; Astragalus; Kalanchoe pinnata; ionization; cineole; essential oils; Anthocleista; hydrodistillation; bark; Sterculia tragacantha; leaves; gas chromatography-mass spectrometry
Abstract:
... Essential oils obtained from the leaves and stem bark of Sterculia tragacantha (Lindl.) , Anthocleista vogelii (Planch.) and from the leaves of Bryophyllum pinnatum (Lam.) using hydrodistillation were analyzed by Gas Chromatography-flame ionization detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS). The percentage yields of essential oils are: S. tragacantha leaves (0.53%), S. trag ...
... In this study, the chemical composition of essential oil isolated by hydrodistillation from the aerial part of Achillea biebersteinii, growing wild in Iran was analyzed by GC and GC-MS. Eleven compounds were identified, representing 96.6% of total components. 1,8-cineole (45.2%), p-cymene (20.8%) and cis-chrysanthenyl acetate (20.4%) were found to be the main components of the oil. The study of th ...
Rosmarinus officinalis; alpha-pinene; chemical composition; chemotypes; cineole; cluster analysis; cooking; cytotoxicity; enzyme inhibition; essential oils; gas chromatography-mass spectrometry; limonene; oils; rosemary; traditional medicine; xanthine oxidase; Alabama; Kenya; Nepal; South Africa; Victoria (Australia); Yemen
Abstract:
... Rosemary (Rosmarinus officinalis L.) is a popular herb in cooking, traditional healing, and aromatherapy. The essential oils of R. officinalis were obtained from plants growing in Victoria (Australia), Alabama (USA), Western Cape (South Africa), Kenya, Nepal, and Yemen. Chemical compositions of the rosemary oils were analyzed by gas chromatography-mass spectrometry as well as chiral gas chromatogr ...
... Orchid bees (Hymenoptera: Apidae: Euglossini) are a diverse and important group of Neotropical pollinators. Numerous chemicals have been used in sampling orchid bees, and species-specific attraction, particularly of males, to these chemicals is well known. However, there have been few studies that have quantified differences in the species composition of orchid bees attracted to particular chemica ...
... Biosynthesis and metabolism of phytochemicals in aromatic and medicinal plants are vigorously affected by environmental agents. This study was undertaken to investigate the variations in the growth, nutrient status and the essential oils content and composition of pennyroyal (Mentha pulegium L.) plant exposed to different concentrations of copper (Cu; 0, 5, 25 mg kg⁻¹ soil) and zinc (Zn; 0, 10, 50 ...
... Salvia is a valuable genus whose species are rich in essential oils and phenolic compounds. Salvia species are used in perfumery and cosmetics industry and also in food industry as a source of essential oil and flavoring agents. In this study, the composition of essential oil and phenolic compounds of methanol extract from the aerial parts of Salvia veneris Hedge endemic to Cyprus were investigate ...
Peumus boldus; algorithms; alkaloids; cineole; databases; fractionation; gas chromatography; leaves; mass spectrometry; metabolites; nuclear magnetic resonance spectroscopy; p-cymene; stable isotopes
Abstract:
... A computer-aided, ¹³C NMR-based dereplication method is presented for the chemical profiling of natural extracts without any fractionation. An algorithm was developed in order to compare the ¹³C NMR chemical shifts obtained from a single routine spectrum with a set of predicted NMR data stored in a natural metabolite database. The algorithm evaluates the quality of the matching between experimenta ...
... Use of solar energy for cooking and steam generation is quite common around the world. However, use of solar energy for extraction of essential oils from medicinal and aromatic plants has recently been explored and its effects are still largely unknown. The current study is about essential oil extraction using a newly designed solar distillation system. The devised system consists of a primary ref ...
... Differentiation in angiosperms is often linked to small changes in floral features including morphology, but also phenology and floral resources, which select different arrays of pollinators and result in disassortative mating. Unonopsis is a bee-pollinated genus in the mostly beetle-pollinated tropical family Annonaceae. We studied Unonopsis guatterioides, a species widespread in South American f ...
... The poultry red mite, Dermanyssus gallinae, represents a key threat for the poultry industry worldwide. The control of D. gallinae is mainly achieved by continuous applications of acaricides. However, the fast-growing development of resistance, and the strict laws concerning chemicals admitted for treatments on food animals, highlighted the importance of alternative control tools. Here, we explore ...
... The antioxidant and antimicrobial properties of rosemary essential oil (EO) and extracts, entrapped in carboxyl methyl cellulose (CMC) edible coating for smoked eel were investigated. Analysis of the EO indicated 1,8-cineole, L-camphor, a-pinene, and 1-borneol, as the main components. The solid residue generated by the EO distillation was extracted in an ultrasound bath with ethanol to give an ext ...
... Identification and determination of ecological requirements in medicinal plants is necessary for maintaining them in their habitats. The aim of this study was to assess the effect soil properties and climatic factors of various habitats on morphology, phenology, growth characteristics and essential oil quantity and quality of Perovskia abrotanoides Karel in Iran. Six most important habitats of P. ...
... The various species of mint are used in different industries such as pharmaceutical, food, cosmetics and health industry. Mentha aquatica L. are important species of mint. Drying process, in order to maintain the quality and quantity of essential oil extraction of the plant, it has an important role in the processing medicinal plants. Dryer tests were conducted in June 2016. In this research, the ...
... Holy basil is a perennial plant belongs to lamiaceae family. In order to evaluate the effect of foliar application of zinc on essential oil content and composition of holy basil, an experiment was conducted at research farm, based on randomized complete block design with six treatments and three replications. The treatments were nano zinc chelate (0, 0.5, 1 and 1.5 g/l) and zinc sulfate (1 and 1.5 ...
... 1,8-cineole defines a typical chemotype of Thymus vulgaris L. in Iberian Peninsula. This compound has a wide range of potentially useful bioactive properties. In order to study the influence of drought stress in the essential oil (EO) composition of this chemotype, sixty plants from six wild populations of Eastern Iberian Peninsula were distilled and analyzed by GC and GC/MS. The harvest dates (Ma ...
... Green tea was investigated in terms of its aroma changes induced by two enzyme extracts of Aspergillus niger, i.e., crude enzyme extracted from fermentation using tea stalk medium (CETSM) and crude enzyme yielded in potato dextrose medium. The result showed that the former had significant effects on sensory indexes and volatile constituents, with significant increases in toasty and mushroom notes, ...
... Inspite of well-established potentiality of plant essential oils as biopesticides, their environmentally low persistence is considered as a hindering obstacle for its commercialization. In the present study, chemical composition and toxicity of essential oils isolated from leaves of Thymus eriocalyx and Thymus kotschyanus were evaluated against two-spotted spider mite, Tetranychus urticae. The che ...
... Sitophilus oryzae (L) were subjected to essential oils extracted from Mentha piperita L, Rosmarinus officinalis L and Hyssopus officinalis L. Chemical structure, repellency, fumigant toxicity and feeding reduction of the essential oils were investigated. Chemical composition of the essential oils of M. piperita, R. officinalis and H. officinalis were identified by GC-MS. Menthol (43.95%), menthone ...
... Nepeta dschuparensis Bornm. is an endemic plant from Iran. Little information is available on this endemic medicinal plant. The aim of the present study was to identify the essential oil compositions in stems, leaves and flowers of N . dschuparensis using GC-MS analysis. The essential oil yields of stems, leaves and flowers from N. dschuparensis were 0.2, 1.2 and 0.7%, respectively. The main compo ...
... The essential oil of Myrtus communis leaves was obtained by hydro distillation method for 2 hours and then the composition of essential oil was determined by GC and GC-MS. The oil yield was 0.35 % (v/w). Forty-four compounds were identified and 1,8-cineole (26.91 %), α-pinene (22.02 %), linalool (12.74 %), linalyl acetate (8.64 %), α-terpineol (8.29 %) and α-terpinyl acetate (4.58 %) were the majo ...
... The leaf essential oil of Ajuga iva growing wild in Mascara region situated in the North West of Algeria, has been obtained by hydrodistillation and analyzed by GC and GC-MS. We proposed to determine the physicochemical, organoleptic and chemical identification of these components. Twenty two volatile compounds were identified which included: dienestrol (54.04%), eucalyptol (27%), o-xylene (7.98 % ...
... Gaillonia eriantha is a member of family Paederieae (Rubiaceae). The essential oil of G. eriantha growing wild in south of Iran was obtained by hydrodistillation and analysed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). Antioxidante activity and polyphenolic content were identified by DPPH microplate method and HPLC-DAD, respectively. Twenty-two compounds were ident ...
... Salmonella typhimurium is a severe threat to human life. The treatment became more difficult with the emergence of multidrug resistance. In the present in silico study, a novel drug target L-asparaginase was tested against three ligands eucalyptol, sabinene, and cinnamaldehyde, major components of cardamom, nutmeg, and cinnamon, respectively. The lowest docking score was obtained for sabinene foll ...
... Spices are well known for their taste and flavor imparting properties. Green cardamom (Elletaria cardamomum), a herb spice belongs to family Zingiberaceae. In current study, GC–MS analysis of green cardamom essential oil (CEO) resulted in identification of twenty-six compounds with α-terpinyl acetate (38.4%), 1,8-cineole (28.71%), linalool acetate (8.42%), sabinene (5.21%), and linalool (3.97%) as ...
... Manglietia ventii is a highly endangered plant species endemic to Yunnan province in China, where there are only five known small populations. Despite abundant flowering there is very low fruit and seed set, and very few seedlings in natural populations, indicating problems with reproduction. The causes of low fecundity in M. ventii are not known, largely because of insufficient knowledge of the s ...
... A comparative study has been carried out between univariate and multivariate calibration strategies for the simultaneous determination of camphor, thymol, menthol and eucalyptol in commercial formulations used for Varroa treatment. Absorbance peak heights of the transmission mid-infrared (MIR) spectra of individual monoterpenes, prepared in dichloromethane, were measured at 1737, 1151, 1022 and 98 ...
... Chemical composition and phytotoxicity of oregano, marjoram and Thymus mastichina essential oils against Portulaca oleracea L., Lolium multiflorum Lam. and Echinochloa crus-galli (L.) Beauv. has been investigated. Seventy-seven compounds reaching 97.3% and 99.4% were identified by gas chromatography–mass spectrometry. Carvacrol (60.42 ± 0.07%), p-cymene (15.52 ± 0.02%) and γ-terpinene (5.19 ± 0.02 ...
... The demand for bio-jet fuels to reduce carbon emissions is increasing substantially in the aviation sector, while the scarcity of high-density jet fuel components limits the use of bio-jet fuels in high-performance aircrafts compared with conventional jet fuels. Herein, we report a novel biphasic tandem catalytic process (biTCP) for synthesizing cycloalkanes from renewable terpenoid biomass, such ...
... Interactions between plants and aquatic insects are poorly documented, especially for turbid freshwater ecosystems. Many Swiss lakes offer such habitats, several of which are inhabited by the leaf beetle Macroplea appendiculata (Panzer 1794). This donaciid beetle is the only coleopteran species known to complete its life cycle entirely under water, where it lives primarily on perfoliate pondweed ( ...
... Potent odorants in Native spearmint, Scotch spearmint, and Macho mint oils were determined by the combined use of gas chromatography–olfactometry (GCO), gas chromatography–mass spectrometry (GC-MS), and aroma extract dilution analysis (AEDA). Of the 85 odorants detected, (R)-(−)-carvone was the most potent odorant in all three spearmint oils. Additional predominant odorants in all spearmint oils i ...
... The present research was planned to characterize the aroma composition of important members of the Lamiaceae family such as Salvia officinalis, Lavandula angustifolia and Mentha asiatica. Aroma components of the S. officinalis, L. angustifolia and M. asiatica were extracted with the purge and trap technique with dichloromethane and analyzed with the gas chromatography–mass spectrometry (GC–MS) tec ...
... For the characterization of chemical components contributing to the aroma of ginger, which could benefit the development of deep-processed ginger products, volatile extracts were isolated by a combination of direct solvent extraction–solvent-assisted flavor evaporation and static headspace analysis. Aroma-impact components were identified by gas chromatography–olfactometry–mass spectrometry, and t ...
... The chemical composition of essential oils hydrodistilled (HD), steam distilled (SD) and supercritical fluid extracted (SCFE) from the leaves of Cannabis sativa and Cannabis indica from Pakistan were being reported. Maximum yield of essential oil for both strains was obtained at 110°C, 130°C and 45°C for hydrodistillation, steam distillation and supercritical fluid extraction respectively. Yields ...
Salvia officinalis; biosynthesis; cineole; drought; enzymes; essential oils; sabinene; sage; water stress
Abstract:
... In previous experiments, we demonstrated that the amount of monoterpenes in sage is increased massively by drought stress. Our current study is aimed to elucidate whether this increase is due, at least in part, to elevated activity of the monoterpene synthases responsible for the biosynthesis of essential oils in sage. Accordingly, the transcription rates of the monoterpene synthases were analyzed ...
... Aromatic plants comprise many biologically active compounds such as mainly anti-microbial, anti-oxidant, anti-parasitic, anti-fungal and anti-inflammatory characteristics. The demand for these plants and their derivatives has became popular since they are natural and generally recognized as safe products. Thus, chemical composition of volatile oils, obtained from Myrtus communis (Myrtle), Citrus s ...
Melaleuca alternifolia; active ingredients; alpha-terpineol; anti-inflammatory activity; bioactive compounds; cineole; essential oils; gas chromatography-mass spectrometry; gels; headspace analysis; monitoring; ointments; solid phase microextraction; solvents; tea; tea tree oil; trees
Abstract:
... Melaleuca alternifolia essential oil (tea tree oil, TTO) is well known for its antimicrobial, antifungal and anti‐inflammatory properties, which it is currently used as an active ingredient in skin care products. This study investigates and evaluates the permeation and release kinetics of TTO marker compounds from several semisolid formulations (creams, ointments, gels) containing TTO in different ...
Ana Valéria Vieira de Souza; Douglas de Britto; Uiliane Soares dos Santos; Luma dos Passos Bispo; Izabel Cristina Casanova Turatti; Norberto Peporine Lopes; Ana Paula de Oliveira; Jackson Roberto Guedes da Silva Almeida
Croton; alpha-pinene; chemical composition; cineole; cosmetics; drying; drying temperature; ecosystems; essential oil crops; essential oils; gas chromatography; germacrene; harvest date; medicinal plants; spathulenol; wet season
Abstract:
... The Caatinga biome is a source of hundreds aromatic plants with medicinal, food and cosmetics potential applications. One of them is Croton sonderianus which essential oil chemical composition and yielding were studied in function of season of harvesting, pre-treatment temperature and time of extraction. In average, after Gas Chromatography analysis, the four major components were spathulenol (40% ...
... Salvia species are very well known for their uses as herbal tea as well as insecticidal activity of their essential oils against stored product insects. Due to their use as herbal tea, Salvia species could be considered as perfect candidates to develop safe natural insect management agents. In the scope of the present study, the essential oil of aerial parts of Salvia veneris Hedge was investigate ...
... In this study, the opportunity to enhance the insecticidal activity of Rosmarinus officinalis essential oil was studied for effective management of the red flour beetle, Tribolium castaneum, as a stored product pest beetle. Nanoprecipitation method was used to prepare rosemary oil‐loaded nanocapsules. Bioassays were conducted at 27–30°C temperature and 70–75 % relative humidity in the dark. Fumiga ...
... The essential oils chemical composition of twenty samples of Moroccan Myrtus communis L. harvested from the same site was determined by GC and GC/MS. Thirty-one compounds representing an average of 99% of the oils composition were identified. High percentages of oxygenated monoterpenes (48.8–97.2%) and monoterpene hydrocarbons (0.4–50.7%) were observed. Major compounds were α-pinene (0.4–50.3%), 1 ...
... Candida infection is an important cause of morbidity and mortality on immunosuppressed patients. This growing trend has been associated with resistance to the antimicrobial therapy and the ability of microorganism to form biofilms. TTO oil is used as antimicrobial which shows antibiofilm activity against Candida species. However, it presents problems due to its poor solubility and high volatility. ...
... Essential oils are odorous, volatile products of plant secondary metabolism, which are found in many leaves and stems. They show important biological activities, which account for the development of aromatherapy used in complementary and alternative medicine. The essential oil extracted from Melaleuca quinquenervia (Cav.) S.T. Blake (paperbark) (MQ-EO) has various functional properties.The aim of ...
... This study describes anaesthetic efficacy of menthol and 1,8‐cineole in common carp, Cyprinus carpio, in comparison with eugenol. Common carp fingerlings were exposed to eugenol: 5, 10, 15, 25, 35, 50, 75, 100, 150 and 200 ppm; menthol: 5, 10, 15, 25, 50, 100, 200, 300, 400, 500 and 600 ppm; 1,8‐cineole: 100, 150, 200, 300, 400, 500, 600, 700 and 800 ppm. Induction time and recovery time were reco ...
... Small cardamom (Elettaria cardamomum) seeds were subjected to α-amylase-assisted supercritical carbon dioxide (SC-CO₂) extraction at the optimized conditions of 200 bar, 50 °C and 135 min extraction time to obtain 1,8-cineole-rich extract. At these extraction conditions, 29.55 % enhanced yield of 1,8-cineole was obtained in the extract. This extract was microencapsulated by spray drying and the pa ...
Alexandra Filipe; João C.R. Cardoso; Graça Miguel; Liliana Anjos; Helena Trindade; Ana Cristina Figueiredo; José Barroso; Deborah M. Power; Natália T. Marques
... The essential oil of Thymus albicans Hoffmanns. & Link, a native shrub from the Iberian Peninsula, is mainly composed of monoterpenes. In this study, a 1,8-cineole synthase was isolated from the 1,8-cineole chemotype. A partial sequence that lacked the complete plastid transit peptide but contained an extended C-terminal when compared to other related terpene synthases was generated by PCR and Rap ...
... KEY MESSAGE: High temperature promoted monoterpene emission from Cinnamomum camphora , and monoterpenes scavenged ROS and protected photosynthesis to improve thermotolerance in plants. High temperature impacts plant growth and development with a reduction in photosynthetic rate and an increase in reactive oxygen species (ROS) levels. To reveal the effects of monoterpene emissions on improving plan ...
... Ocimum basilicum L. exhibits a great variety of cultivars grown for various purposes. The aim of this research was to analyse the chemical composition of 85 O. basilicum accessions cultivated throughout the world using gas chromatography (GC/FID and GC/MS). All accessions were previously categorized into six morphotypes based on 24 morphological traits: True basil, Small-leaf, Lettuce-leaf, Purple ...
Sérgio Macedo Silva; José Magno Queiroz Luz; Pedro Augusto Menezes Nogueira; Arie Fitzgerald Blank; Taís Santos Sampaio; Jéssika Andreza Oliveira Pinto; Alberto Wisniewski
... Large-scale production of aromatic plants is subject to phytotechnical challenges, such as management, irrigation, nutrition, and soil fertility, as well as exogenous issues that may affect the chemical composition of secondary metabolites. The aim of this study was to evaluate the effect of organo-mineral fertilizer on the biomass and essential oil of lavender (Lavandula dentata L.). A randomized ...
gallic acid; myricetin; gas chromatography; headspace analysis; cineole; 2,2-diphenyl-1-picrylhydrazyl; liquid-liquid extraction; high performance liquid chromatography; Myrtus communis; liqueurs; solid phase microextraction; mass spectrometry; antioxidant activity; shikimic acid
Abstract:
... The aim of this research was to evaluate the antioxidant capacity and physical-chemical characteristics of commercial white myrtle berry (Myrtus communis L. var. leucocarpa DC) liqueur (WMBL). The total phenolic (TP) content was measured spectrophotometrically, applying a modified Folin-Ciocalteu’s method, and phenolic compounds were identified by high-performance liquid chromatography (HPLC) coup ...
... Extracts with water:ethanol (100:0, 70:30, 50:50, 30:70, 0:100) solutions from fresh (F), just dried (JD), dried and stored for one year (DS) Justicia spicigera leaves were obtained using the stirring and ultrasound techniques. Extracts were analyzed in physicochemical and antioxidant characteristics. Identification of chemical compounds by gas chromatography–mass spectroscopy (GC–MS) was also per ...
... Mosquitoes play an important role in transmission of large number of diseases including malaria, filariasis and arboviral diseases. Increasing application of synthetic insecticides may be resulted in resistant to insecticides. Furthermore, it may have adverse effects on the environment and human health. Currently, one of the most effective alternative approaches under the biological control progra ...
... The in vitro antimicrobial and antioxidant activities of the two essential oils from flowers and leaves of Achillea millefolium subsp. millefolium were examined. GC-MS analysis of the essential oils resulted in the identification of sixty and fifty-eight compounds constituting 96.96 % and 98.71 % of the total essential oil of flower and leave, respectively. The essential oil of flowers were charac ...
... Under Eucalyptus plantations in the South Brazilian grassland region, few plants establish, and allelopathy may be involved in shaping this pattern. We aimed to assess the phytotoxicity of essential oil and aqueous extract of Eucalyptus saligna Sm. leaf litter on grassland species. We tested the effects of E. saligna pure oil and extract on germination, seedling growth, H2O2 levels and electrolyte ...
J.A. Rosado-Aguilar; K. Arjona-Cambranes; J.F.J. Torres-Acosta; R.I. Rodríguez-Vivas; M.E. Bolio-González; A. Ortega-Pacheco; A. Alzina-López; E.J. Gutiérrez-Ruiz; E. Gutiérrez-Blanco; A.J. Aguilar-Caballero
... The present review documents the results of studies evaluating the acaricidal activity of different plant products and secondary metabolites against ticks that are resistant and susceptible to conventional acaricides. Studies published from 1998 to 2016 were included. The acaricidal activity of plant extracts, essential oils and secondary compounds from plants have been evaluated using bioassays w ...
Stefanie Bressan Waller; Marlete Brum Cleff; Emanoele Figueiredo Serra; Anna Luiza Silva; Angelita dos Reis Gomes; João Roberto Braga de Mello; Renata Osório de Faria; Mário Carlos Araújo Meireles
... This work aimed to review the main plants of Lamiaceae family with activity against pathogenic fungi of medical and veterinary interest. Published studies in the main international databases between January 2002 and June 2016 showed that 55 botanical species belonging to 27 genus presented antifungal activity in different forms of extractions, mainly essential oils. Pathogenic fungi of Aspergillus ...
Melaleuca; alpha-pinene; alpha-terpineol; anti-infective agents; antibacterial properties; antifungal properties; cineole; essential oils; limonene; methyl eugenol; p-cymene; sabinene; tea tree oil; terpinolene; traditional medicine; Australia
Abstract:
... Plants belonging to Melaleuca genus (Myrtaceae family) are native to Oceania, where they have been used for ages by Aborigine people in Australian traditional medicine, mainly because of their broad‐spectrum antimicrobial activity. Although, M. linariifolia, M. dissitiflora, and other species of Melaleuca can also be used, the tea tree oil, an essential oil obtained from M. alternifolia shows the ...
Eucalyptus; arid lands; biomass production; breeding; cineole; genetic correlation; genotype-environment interaction; heritability; leaves; progeny; provenance; trees; New South Wales; South Australia; Western Australia
Abstract:
... Mallee eucalypts are being domesticated for use as a perennial biomass crop for dryland agriculture in southern Australia. Nine provenances of Eucalyptus loxophleba subsp. lissophloia were tested in trials at Brookton, Western Australia, Monarto, South Australia, and Condobolin, New South Wales. Provenance rankings for biomass production were more similar between Brookton and Condobolin than betwe ...
... Dengue, chikungunya, and yellow fever are important vector-borne diseases transmitted by female mosquitoes when they feed on humans. The use of repellents based on natural products is an alternative for personal protection against these diseases. Application of chemicals with larvicidal activity is another strategy for controlling the mosquito population. The repellent and larvicidal activities of ...
... This work was aimed at a progressive formulation of drugs into chitosan hydrogels. It was taken into consideration that a therapeutic effect of the drugs could be enhanced by a combination of natural compounds with chemical (synthetic) drugs. In this work, sage essential oil (SEO) bicyclic monoterpenes with antiflogistic, antiseptic, and antimycotic properties were combined with terbinafine (TB) h ...
... The dissemination of information is a basic element of group cohesion. In honey bees (Apis mellifera Linnaeus 1758), like in other social insects, the principal method for colony-wide information exchange is communication via pheromones. This medium of communication allows multiple individuals to conduct tasks critical to colony survival. Social signaling also establishes conflict at the level of ...
... The combination of essential oils (EOs) is a novel alternative to improve their preservative effects and to reduce their organoleptic impact in food. In this context, this work aims to investigate the antibacterial combined effect of two EOs combinations through the calculation of the fractional inhibitory concentration index. The combinations tested consists of Lavandula dentata/Origanum majorana ...
... Anthelmintic resistance in sheep gastrointestinal nematodes is a worldwide problem. Multi-drug resistant haemonchosis is the most serious impediment for small ruminant systems, and there are no new drug candidates currently under development. Molecules from natural sources have demonstrated anthelmintic activity against parasites. In this work, the monoterpenoids carvacrol, carvone, cineole, linal ...
... The eucalyptus leaves generated by the forestry plantations in Mexico represent a neglected biomass residual resource that has a potential for the extraction of essential oil and would allow achieving economic incomes, as well as employment in the forestry sector. Its revalorization as raw material to extract essential oil constitutes a sustainable method that adds it value. Likewise, it contribut ...
... Mints are regarded as one of the most important spices throughout the world with increased demands on cultivation under controlled environment. We conducted a study to evaluate the effects of different nitrogen levels (N: 150–175–200–225–250mg/L) on the morphological and biochemical characteristics of spearmint (Mentha spicata L.) in hydroponics. The results indicated that N levels affected plant ...
... A comparative investigation of hydro-distilled essential oils from aerial parts of Mentha longifolia L. (ML), Mentha microphylla K.Koch (MM), Mentha australis R.Br. (MA), and Teucrium polium L. (TP) growing in Al Madinah Al Munawwarah, Saudi Arabia, was carried out. The total numbers of identified constituents were 22, 23, 14, and 20 in ML, MM, MA, and TP oils, representing 93.0, 99.3, 78.1, and 8 ...
... Eutrophication promotes massive growth of cyanobacteria and algal blooms, which can poison other algae and reduce biodiversity. To investigate the differences in multiple nitrogen (N) sources in eutrophicated water on the emission of volatile organic compounds (VOCs) from cyanobacteria, and their toxic effects on other algal growth, we analyzed VOCs emitted from Microcystis flos-aquae with differe ...
... This research investigated volatiles in dairy products and taste and sensory properties of cheese after a feeding trial with 16 cows in two groups, of which one was supplemented with essential oils. Gas chromatographic analyses of the powdery supplement, raw milk and extracted milk fat measured the concentrations of volatiles in these matrices. Quantitative descriptive analyses and a consumer test ...
... We used comparative studies to investigate how and why floral and bee fragrances evolve, including courtship odors collected by male Euglossa mixta to form their “tibial bouquet”, on Coiba Island and other Panama forests. Fragrances of four orchid genera, two used extensively by E. mixta – Coryanthes and Mormodes – and two never used, Clowesia and Catasetum – were also analyzed. From among 636 che ...
myricetin; polyphenols; nuclear magnetic resonance spectroscopy; Myrtus; quantitative analysis; free radicals; cineole; 2,2-diphenyl-1-picrylhydrazyl; herbal tea; glucosides; black tea; antioxidant activity; phytopharmaceuticals; chemical structure; leaves
Abstract:
... The phytochemical profile of decoction and infusion, obtained from the dried leaves of M. nivellei, consumed as tea in Saharan region, was characterized by UHPLC-PDA-HRMS. Fourteen compounds were characterized and, to confirm the proposed structures a preparative procedure followed by NMR spectroscopy was applied. Compound 3 (2-hydroxy-1,8-cineole disaccharide) was a never reported whereas a bicyc ...
Alpinia; acetates; alpha-phellandrene; bark; beta-caryophyllene; beta-pinene; camphene; chemical composition; cineole; essential oils; gas chromatography-mass spectrometry; hydrodistillation; leaves; oils; Vietnam
Abstract:
... The chemical compositions of volatiles from Alpinia pinnanensis T. L. Wu & Senjen (Zingiberaceae) are being studied. The essential oils that were obtained by hydrodistillation were analyzed by GC (FID) and GC-MS. The components were identified by MS libraries and their LRIs. The essential oils content varied between 0.11% and 0.41% (v/w), calculated on a dry weight basis. Monoterpenes (21.0 - 60.7 ...
... Blepharocalyx salicifolius (Kunth) O. Berg (Myrtaceae) is a tree native to Argentina and Uruguay that grows and is cultivated along the riverside of the Rio de la Plata. The leaves of this plant species, locally known as “anacahuita” are used in South America to prepare infusions for the empiric treatment of cough and bronchospasm, as well as diarrhoea and other intestinal disorders. Although prev ...
... The use of volatile organic compounds (VOCs) derived from plants to manipulate insect pest behavior can be applied in an integrated pest management strategy (IPM) using a combination of attractive and repulsive stimuli. The “push–pull” strategy was developed on this idea in order to disturb and modify the distribution and abundance of pests to protect crops and reduce the use of agrochemicals. Thi ...
... The aim of the present study was to investigate the in vitro antioxidant and antitumor effects of Salvia fruticosa Mill subsp. thomasii (Lacaita) Brullo, Guglielmo, Pavone & Terrasi (Lamiaceae). The aerial parts were extracted by maceration with methanol. This extract was partitioned with methanol and n-hexane. Luteolin, luteolin 7-O-glucoside, rutin and salvigenin were isolated from the methanol- ...
Hedychium coronarium; alcohols; aldehydes; alpha-terpineol; chemical structure; cineole; comprehensive two-dimensional gas chromatography; databases; essential oils; esters; ethers; gas chromatography; ketones; mass spectrometry; oils; oxides; p-cymene; sesquiterpenoids; India
Abstract:
... Hedychium coronarium J. koenig (Zingiberaceae) is well known for to its medicinal and aromatic properties because of it terpenic components. The paper aims to characterize the terpenic composition present in the essential oil of Hedychium coronarium J. koenig by two-dimensional gas chromatography with time-of-flight mass spectrometry (GCxGC-TOF-MS). A total of 101 terpenic constituents were identi ...