scholarly journals Essential oils of camphor tree (cinnamomum camphora nees & eberm) cultivated in Southern Brazil

2000 ◽  
Vol 43 (3) ◽  
pp. 313-316 ◽  
Author(s):  
Caren D. Frizzo ◽  
Ana C. Santos ◽  
Natalia Paroul ◽  
Luciana A. Serafini ◽  
Eduardo Dellacassa ◽  
...  
Keyword(s):  
Essential Oils ◽  
Methyl Silicone ◽  
Cinnamomum Camphora ◽  
Southern Brazil ◽  
Main Components ◽  
Retention Indexes ◽  
Camphor Tree

The essential oils of two varieties of Camphor tree (Cinnamomum camphora Nees & Eberm, Lauraceae), known as Hon-Sho and Ho-Sho cultivated in experimental stands in Southern Brazil were studied. The essential oils were obtained from the leaves and twigs of young plants by hydrodistillation. The identification of the components was performed using GC, GC/MS and retention indexes on methyl silicone and carbowax phases. The main components identified were linalool in the Ho-Sho and camphor in the Hon-Sho.

scholarly journals Sub-Tissue Localization of Phytochemicals in Cinnamomum camphora (L.) J. Presl. Growing in Northern Italy

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1008
Author(s):  
Martina Bottoni ◽  
Fabrizia Milani ◽  
Marta Mozzo ◽  
Daniele Armando Radice Kolloffel ◽  
Alessio Papini ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Essential Oils ◽  
Secretory Cells ◽  
Cinnamomum Camphora ◽  
Secretory Structures ◽  
Plant Parts ◽  
Potential Activity ◽  
Main Components ◽  
First Time

In the present paper, we focused our attention on Cinnamomum camphora (L.) J. Presl. (Lauraceae), studied at three levels: (i) micromorphological, with the analysis of the secretory structures and a novel in-depth histochemical characterization of the secreted compounds; (ii) phytochemical, with the characterization of the essential oils from young stems, fruits, and leaves, subjected to different conservation procedures (fresh, dried, stored at −20 °C, stored at −80 °C) and collected in two different years; (iii) bioactive, consisting of a study of the potential antibacterial activity of the essential oils. The micromorphological investigation proved the presence of secretory cells characterized by a multi-layered wall in the young stems and leaves. They resulted in two different types: mucilage cells producing muco-polysaccharides and oil cells with an exclusive terpene production. The phytochemical investigations showed a predominance of monoterpenes over sesquiterpene derivatives; among them, the main components retrieved in all samples were 1,8-cineole followed by α-terpineol and sabinene. Conservation procedures seem to only influence the amounts of specific components, i.e., 1,8-cineole and α-terpineol, while analyses on each plant part revealed the presence of some peculiar secondary constituents for each of them. Finally, the evaluation of the antibacterial activity of the essential oil showed a promising activity against various microorganisms, as Listeria monocytogenes, Staphylococcus aureus, Enterococcus faecalis and Pseudomonas aeruginosa. In conclusion, we combined a micromorphological and phytochemical approach of the study on different plant parts of C. camphora, linking the occurrence of secretory cells to the production of essential oils. We compared, for the first time, the composition of essential oils derived from different plant matrices conserved with different procedures, allowing us to highlight a relation between the conservation technique and the main components of the profiles. Moreover, the preliminary antibacterial studies evidenced the potential activity of the essential oils against various microorganisms potentially dangerous for plants and humans.

scholarly journals Foeniculum vulgare Essential Oils: Chemical Composition, Antioxidant and Antimicrobial Activities

2010 ◽  
Vol 5 (2) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Maria Graça Miguel ◽  
Cláudia Cruz ◽  
Leonor Faleiro ◽  
Mariana T. F. Simões ◽  
Ana Cristina Figueiredo ◽  
...  
Keyword(s):  
Essential Oils ◽  
Radical Scavenging ◽  
Antimicrobial Activities ◽  
Point Of View ◽  
Diffusion Method ◽  
Foeniculum Vulgare ◽  
Aerial Parts ◽  
Scavenging Capacity ◽  
Dpph Method ◽  
Main Components

The essential oils from Foeniculum vulgare commercial aerial parts and fruits were isolated by hydrodistillation, with different distillation times (30 min, 1 h, 2 h and 3 h), and analyzed by GC and GC-MS. The antioxidant ability was estimated using four distinct methods. Antibacterial activity was determined by the agar diffusion method. Remarkable differences, and worrying from the quality and safety point of view, were detected in the essential oils. trans-Anethole (31-36%), α-pinene (14-20%) and limonene (11-13%) were the main components of the essentials oil isolated from F. vulgare dried aerial parts, whereas methyl chavicol (= estragole) (79-88%) was dominant in the fruit oils. With the DPPH method the plant oils showed better antioxidant activity than the fruits oils. With the TBARS method and at higher concentrations, fennel essential oils showed a pro-oxidant activity. None of the oils showed a hydroxyl radical scavenging capacity >50%, but they showed an ability to inhibit 5-lipoxygenase. The essential oils showed a very low antimicrobial activity. In general, the essential oils isolated during 2 h were as effective, from the biological activity point of view, as those isolated during 3 h.

Determination of Bioactive Components of 60°С Volatiles from Cinnamomum camphora Branches by TD-GC/MS

2011 ◽  
Vol 230-232 ◽  
pp. 852-856
Author(s):  
Qing Li ◽  
Dang Quan Zhang ◽  
Qi Mei Liu ◽  
Kuan Peng
Keyword(s):  
Chemical Compounds ◽  
Chemical Components ◽  
Cinnamomum Camphora ◽  
Bioactive Components ◽  
Industrial Materials ◽  
Analytical Result ◽  
Main Components

The chemical components of helium volatiles from the fresh branches of Cinnamomum camphora were studied by TD-GC/MS. The analytical result by 60°С-based TD-GC/MS showed that 55 peaks were obtained from the helium volatiles from the fresh branches of Cinnamomum camphora and 53 chemical compounds were identified. The results showed that the main components were as: Bicyclo[2.2.1]heptan-2-one, 1,7,7-trimethyl-, (1R)- (15.4328%), 1,3-Benzodioxole, 5-(2-propenyl)- (14.881%), Tricyclo[2.2.1.0(2,6)]heptane, 1,7-dimethyl-7-(4-methyl-3-pentenyl)-, (-)- (12.694%), p-menth-1-en-8-ol (9.832%), Bicyclo[2.2.1]heptane, 2-methyl-3-methylene-2-(4-methyl-3- pentenyl)-, (1S-exo)- (6.143%), 1,6,10-Dodecatrien-3-ol, 3,7,11-trimethyl- (5.365%), Bicyclo[3.1.1] hept-2-ene, 2,6-dimethyl-6-(4-methyl-3-pentenyl)- (4.527%), Naphthalene, 1,2,3,5,6,8a- hexahydro-4,7-dimethyl-1-(1-methylethyl)-, (1S-cis)- (4.129%), 3-Cyclohexen-1-ol, 4-methyl-1- (1-methylethyl)- (2.965%), Borneol (2.627%), Bicyclo[2.2.1]heptan-2-ol, 1,7,7-trimethyl-, acetate, (1S-endo)- (2.586%), Copaene (2.534%), 1,6,10-Dodecatriene, 7,11-dimethyl-3-methylene-, (Z)- (1.612%), (-)-Isosativene (1.121%), etc. The analytical result suggested that the helium volatiles from the fresh branches of Cinnamomum camphora could be used as industrial materials of biomedicines and spicery.

scholarly journals Insecticidal and repellent activity of the essential oil of Cinnamomum camphora var. linaloolifera Y. Fujita (Ho-Sho) and Cinnamomum camphora (L.) J Presl. var. hosyo (Hon-Sho) on Sitophilus zeamaisMots. (Coleoptera, Curculionedae)

2015 ◽  
Vol 17 (4 suppl 1) ◽  
pp. 769-773 ◽  
Author(s):  
R.L. CANSIAN ◽  
V. ASTOLFI ◽  
R.I. CARDOSO ◽  
N. PAROUL ◽  
S.S. ROMAN ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Insecticidal Activity ◽  
Sitophilus Zeamais ◽  
Repellent Activity ◽  
Cinnamomum Camphora ◽  
Preference Index ◽  
Lethal Doses ◽  
Repellency Activity

ABSTRACT The aim of this work was to evaluate the insecticidal and repellency activity of the essential oil of Cinnamomum camphora var. linaloolifera Y. Fujita (Ho-Sho) and Cinnamomumcamphora (L.) J Presl.var. hosyo (Hon-Sho), against the Sitophilus zeamais in maize grains. The essential oils were obtained by hydrodistillation and analyzed by GC-MS.The insecticidal activity was determined by the toxicity of different concentrations of essential oils during 24 hours of contact with the insects, in the absence of feed substrate. The Bioassays of repellency were conducted with lethal doses (LD50,LD25,and LD12.5) obtained from insecticidal bioassay. In order to compare the treatments the preference index (PI) was employed. The analysis of the essential oils of Cinnamomum camphora leaves indicated 68% of camphor and 9% of linalool for the variation Hon-Sho and 95% of linalool to the variation Ho-Sho. The variation Ho-Sho presented greatest insecticidal activity than the variation Hon-Sho against the Sitophiluszeamais, with LD50 of 0.35 μL/cm2, whereas in the variation Hon-Sho the ratewas 0.48 μL/cm2. However, considering only the concentrations of linalool and camphor of Ho-Sho and Hon-Sho, the lethal doses’ evaluation of these compounds were similar. The values of the preference index ranged from -0.3 to -0.8 for thevariation Ho-Sho and -0.2 to -0.7 for the variation Hon-Sho. The essential oils evaluated in this work showed repellent activity against Sitophiluszeamais in vitro and in trials performed in mini-silos.

scholarly journals Evaluating the Efficacy of 30 Different Essential Oils against Varroa destructor and Honey Bee Workers (Apis mellifera)

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1045
Author(s):  
Marian Hýbl ◽  
Andrea Bohatá ◽  
Iva Rádsetoulalová ◽  
Marek Kopecký ◽  
Irena Hoštičková ◽  
...  
Keyword(s):  
Essential Oils ◽  
Honey Bees ◽  
Varroa Destructor ◽  
Mortality Rates ◽  
Selectivity Ratio ◽  
Varroa Mites ◽  
Main Components ◽  
Honey Bee Workers ◽  
Over Time ◽  
Better Than

Essential oils and their components are generally known for their acaricidal effects and are used as an alternative to control the population of the Varroa destructor instead of synthetic acaricides. However, for many essential oils, the exact acaricidal effect against Varroa mites, as well as the effect against honey bees, is not known. In this study, 30 different essential oils were screened by using a glass-vial residual bioassay. Essential oils showing varroacidal efficacy > 70% were tested by the complete exposure assay. A total of five bees and five mites were placed in the Petri dishes in five replications for each concentration of essential oil. Mite and bee mortality rates were assessed after 4, 24, 48, and 72 h. The LC50 values and selectivity ratio (SR) were calculated. For essential oils with the best selectivity ratio, their main components were detected and quantified by GC-MS/MS. The results suggest that the most suitable oils are peppermint and manuka (SR > 9), followed by oregano, litsea (SR > 5), carrot, and cinnamon (SR > 4). Additionally, these oils showed a trend of the increased value of selective ratio over time. All these oils seem to be better than thymol (SR < 3.2), which is commonly used in beekeeping practice. However, the possible use of these essential oils has yet to be verified in beekeeping practice.

scholarly journals ANTIRADICAL ACTIVITY OF ESSENTIAL OILS OF FILIPENDULA ULMARIA (L.) MAXIM, HYPERICUM PERFORA-TUM L. AND PULMONARIA MOLLIS WULFEN EX HORNEM OF THE KRASNOYRSK TERRITORI FLORA

2021 ◽  
pp. 211-217
Author(s):  
Irina Dement'yevna Zykova ◽  
Aleksandr Alekseyevich Efremov
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antiradical Activity ◽  
Component Composition ◽  
Salicylic Aldehyde ◽  
Filipendula Ulmaria ◽  
Antiradical Properties ◽  
Hypericum Perforatum L ◽  
Butyl Phthalate ◽  
Main Components

The antiradical properties of essential oils from the inflorescences of Filipendula ulmaria (L). Maxim, herbages Hypericum perforatum L. and Pulmonaria mollis Wulfen ex HORNEM., growing on the territory of the Krasnoyarsk territory were studied. For this purpose, the reaction of essential oil components with a stable free 2,2-diphenyl-1-picrylhydrazyl radical was used. Essential oil of the plants under study received comprehensive hydroponically. The component composition of the oils was determined by chromatography-mass spectrometry. The main components of essential oil of F. ulmaria inflorescences are methyl salicylate (28.2%), salicylic aldehyde (2.8 %) and linalool (4.9%), essential oil of H. perforatum – γ - amorphene (30.7%), δ-cadinen (7.1%), (E, E)-β-farnesene (5.5%), caryophyllene (5.0%), ledol (5.0%), essential oil of P. mollis – di-n-butyl phthalate (18.7%), docosan (13.4%), tetracosan (11.6 %). The results of the DPPH test showed that the essential oils of the inflorescences of F. ulmaria and the aboveground part of H. perforatum and P. mollis exhibit antiradical activity (ARA). According to the size of the ARA of essential oils, the studied plants can be arranged in the following row: P. mollis > F. ulmaria > H. perforatum.

scholarly journals Adaptogenic activity of Cinnamomum camphora, Eucalyptus globulus, Lavandula stœchas and Rosmarinus officinalis essential oil used in North-African folk medicine

2021 ◽  
Vol 67 (2) ◽  
pp. 83-88
Author(s):  
Mahieddine Boumendjel ◽  
Abdennour Boucheker ◽  
Sandra Feknous ◽  
Faiza Taibi ◽  
Naouel Rekioua ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Emotional Disorders ◽  
Eucalyptus Globulus ◽  
Elevated Plus Maze ◽  
Rosmarinus Officinalis ◽  
Cinnamomum Camphora ◽  
Lavandula Stoechas ◽  
Plus Maze ◽  
Adaptogenic Activity

Depressive anxiety is one of the most emotional disorders in our industrial societies. Many treatments of phobias exist and are based on plant extracts therapies, which play an important role in the amelioration of the behavior. Our study aimed to evaluate the adaptogenic activity of different essential oils provided from local plants: Cinnamomum camphora (Camphora), Eucalyptus globulus (Blue gum), Lavandula stœchas (Topped lavender) and Rosmarinus officinalis (Rosemary) on Wistar rats. The adaptogenic activity was evaluated on the elevated plus-maze. The efficacy of the extract (200 mL/kg) was compared with the standard anxiolytic drug Diazepam® 1 mg. Animals administered by the essential oil of Lavandula stœchas, Cinnamomum camphora, Rosmarinus officinalis and Eucalyptus globulus showed a behavior similar to those treated with Diazepam®. For groups treated with the following essential oils: Rosmarinus officinalis, Lavandula stoechas and Cinnamomum camphora at a dose of 200 mL/kg, we notice an increase in the time spent on the open arms of the elevated plus-maze and a decrease in time spent on the closed arms of the elevated plus-maze, especially for Rosmarinus officinalis, which explains the anxiolytic effect of these plants. We also notice a decrease in the number of entries in closed arms, open arms and the number of passing to the central square. The increase in the number of entries to open arms with Eucalyptus globulus essential oil shows a reduction in anxiety behavior in rodents and this shows that these plants have an inhibitory effect.

scholarly journals Volatilome and Essential Oil of Ulomoides dermestoides: A Broad-Spectrum Medical Insect

Molecules ◽  
2021 ◽  
Vol 26 (20) ◽  
pp. 6311
Author(s):  
Paulina J. Cázares-Samaniego ◽  
Claudia G. Castillo ◽  
Miguel A. Ramos-López ◽  
Marco M. González-Chávez
Keyword(s):  
Secondary Metabolites ◽  
Essential Oil ◽  
Essential Oils ◽  
Traditional Medicine ◽  
Broad Spectrum ◽  
Alternative Treatment ◽  
Aromatic Compounds ◽  
Therapeutic Potential ◽  
Pharmacological Interest ◽  
Main Components

Ulomoides dermestoides are used as a broad-spectrum medical insect in the alternative treatment of various diseases. Preliminary volatilome studies carried out to date have shown, as the main components, methyl-1,4-benzoquinone, ethyl-1,4-benzoquinone, 1-tridecene, 1-pentadecene, and limonene. This work focused on the production of metabolites and their metabolic variations in U. dermestoides under stress conditions to provide additional valuable information to help better understand the broad-spectrum medical uses. To this end, VOCs were characterized by HS-SPME with PEG and CAR/PDMS fibers, and the first reported insect essential oils were obtained. In HS-SMPE, we found 17 terpenes, six quinones, five alkenes, and four aromatic compounds; in the essential oils, 53 terpenes, 54 carboxylic acids and derivatives, three alkynes, 12 alkenes (1-Pentadecene, EOT1: 77.6% and EOT2: 57.9%), 28 alkanes, nine alkyl disulfides, three aromatic compounds, 19 alcohols, three quinones, and 12 aldehydes were identified. Between both study approaches, a total of 171 secondary metabolites were identified with no previous report for U. dermestoides. A considerable number of the identified metabolites showed previous studies of the activity of pharmacological interest. Therefore, considering the wide variety of activities reported for these metabolites, this work allows a broader vision of the therapeutic potential of U. dermestoides in traditional medicine.

scholarly journals Transcriptomic Analysis of Fertilization Effects on the Biosynthesis of Sesquiterpenes in Essential Oils from Phoebe Bournei Twigs and Leaves

2021 ◽  
Author(s):  
Li Liu ◽  
Gongxiu He ◽  
Xu Wang ◽  
Dangquan Zhang
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Plant Biomass ◽  
Raw Material ◽  
Compound Fertilizer ◽  
Expression Of Genes ◽  
Leaf Essential Oil ◽  
Main Components ◽  
Fertilization Effects ◽  
Phoebe Bournei

Abstract Background: Phoebe bournei is a potential medicinal plant whose essential oil (EO) from leaves has potential inhibitory activities against some bacterium, tumor, and has a certain potential for hypoglycemic activity. Fertilization is a common and effective method to increase plant biomass, which can increase the raw material of essential oil, but has a certain impact on the composition and biological activity of plant essential oil. Results: The main components are sesquiterpenes in the essential oils from leaves and twigs. The yield of the essential oils and the content of their main components can be modulated by compost and compound fertilizer, to different degrees, and minor differences were registered among the categories of the components in essential oils. However, changes were strongly mirrored in some main components of essential oils. The content of the primary (+) - calarene in the leaf EO were strongly increased by compost, but the opposite happened by compound fertilizer. On the contrary, the effect of compound fertilizer was more significant on the main components of twig essential oil than compost. The transcriptome sequencing results of P. bournei showed that the total number of DEGs in twigs and leaves treated with compost were significantly more than that with compound fertilizer. No change was found in the expression of genes regulating principal components. However, the expression of several key genes regulating the upstream substrates for the synthesis of the sesquiterpenes was significantly changed: the expression of two key speed limiting enzymes genes (DXS and HMGR) and two important branch-point enzyme genes (FPPS and GGPPS) was significantly down regulated, while the expression of gene (HMGS) was significantly up-regulated.Conclusion: The expression levels of genes (DXS2, HMGR, FPPS and GGPPS) were significantly down regulated in leaves treated with compost, resulting in the changes of the yield and main components of the leaf essential oil. The effect of compost was more significant on the synthesis of the essential oil from P. bournei leaves than that of compound fertilizer.

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