Academic literature on the topic 'Terpenes – Essences and essential oils'

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Journal articles on the topic "Terpenes – Essences and essential oils"

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Luciardi, María Constanza, María Amparo Blázquez, María Rosa Alberto, Elena Cartagena, and Mario Eduardo Arena. "Lemon Oils Attenuate the Pathogenicity of Pseudomonas aeruginosa by Quorum Sensing Inhibition." Molecules 26, no. 10 (2021): 2863. http://dx.doi.org/10.3390/molecules26102863.

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The chemical composition of three Citrus limon oils: lemon essential oil (LEO), lemon terpenes (LT) and lemon essence (LE), and their influence in the virulence factors production and motility (swarming and swimming) of two Pseudomonas aeruginosa strains (ATCC 27853 and a multidrug-resistant HT5) were investigated. The main compound, limonene, was also tested in biological assays. Eighty-four compounds, accounting for a relative peak area of 99.23%, 98.58% and 99.64%, were identified by GC/MS. Limonene (59–60%), γ-terpinene (10–11%) and β-pinene (7–15%) were the main compounds. All lemon oils
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de Matos, Sheila P., Helder F. Teixeira, Ádley A. N. de Lima, Valdir F. Veiga-Junior, and Letícia S. Koester. "Essential Oils and Isolated Terpenes in Nanosystems Designed for Topical Administration: A Review." Biomolecules 9, no. 4 (2019): 138. http://dx.doi.org/10.3390/biom9040138.

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Essential oils are natural products with a complex composition. Terpenes are the most common class of chemical compounds present in essential oils. Terpenes and the essential oils containing them are widely used and investigated by their pharmacological properties and permeation-enhancing ability. However, many terpenes and essential oils are sensitive to environmental conditions, undergoing volatilization and chemical degradation. In order to overcome the chemical instability of some isolated terpenes and essential oils, the encapsulation of these compounds in nanostructured systems (polymeri
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Menezes, Igor A. C., Carmélia M. N. Barreto, Ângelo R. Antoniolli, Márcio R. V. Santos, and Damião P. de Sousa. "Hypotensive Activity of Terpenes Found in Essential Oils." Zeitschrift für Naturforschung C 65, no. 9-10 (2010): 562–66. http://dx.doi.org/10.1515/znc-2010-9-1005.

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The cardiovascular activity of essential oils has been reported. Some studies showed that the main chemical components of these oils contribute to their pharmacological activity. Therefore, the cardiovascular activity of four monoterpenes and one sesquiterpene was evaluated in the present work. In non-anaesthetized normotensive rats, (+)-α-pinene, (-)-β-pinene, (±)-citronellol and (±)-linalool (1, 5, 10, and 20 mg/kg, i.v.) induced hypotension [maximal effect: (-35 ± 3)%, (-46 ± 4)%, (- 48 ± 2)% and (- 40 ± 2)%, respectively; n = 6] and tachycardia [maximal effect: (13 ± 4)%, (16 ± 7)%, (21 ±
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Niu, Yunwei, Xiaoxin Sun, Zuobing Xiao, Pinpin Wang, and Ruolin Wang. "Olfactory Impact of Terpene Alcohol on Terpenes Aroma Expression in Chrysanthemum Essential Oils." Molecules 23, no. 11 (2018): 2803. http://dx.doi.org/10.3390/molecules23112803.

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The key point of our work was evaluating the impact of terpene alcohols on the aroma expression of terpenes recombination in Chrysanthemum essential oils. Using pure commercial products, various aromatic recombinations were prepared, consisting of terpenes recombination and six terpene alcohols, all the concentrations found in Chrysanthemum essential oils. There were five groups of terpene alcohols mixtures performed very interesting with the addition or omission tests. The “olfactory threshold” of the terpenes recombination had a notable decrease when adding isoborneol, d-Fenchyl alcohol resp
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Lejonklev, J., M. M. Løkke, M. K. Larsen, G. Mortensen, M. A. Petersen, and M. R. Weisbjerg. "Transfer of terpenes from essential oils into cow milk." Journal of Dairy Science 96, no. 7 (2013): 4235–41. http://dx.doi.org/10.3168/jds.2012-6502.

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Jerković, Igor, Željan Maleš, and Maja Friščić. "Actualities in the phytochemical research on selected terpenes." Acta Pharmaceutica 69, no. 4 (2019): 533–40. http://dx.doi.org/10.2478/acph-2019-0036.

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Abstract A short review of our recent research on the essential oil phytochemical composition of Petasites albus (L.) Gaertn. and Petasites hybridus (L.) G. Gaertn., B. Mey. & Scherb. (Asteraceae) as well as on the oils of Globularia cordifolia L., Globularia meridionalis (Podp.) O. Schwarz and Globularia punctata Lapeyr. (Plantaginaceae) is presented. All essential oils contained a variety of oxygenated sesquiterpenes among their major constituents, including a bakkane type sesquiterpene fukinanolid (bakkenolide A). The paper is focused on: i) a short overview of the abundance of major te
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Bisht, B. S., Harshita Bankoti, and Tanuja Bharti. "A Review on Therapeutic Uses of Terpenoids." Journal of Drug Delivery and Therapeutics 11, no. 1-s (2021): 182–85. http://dx.doi.org/10.22270/jddt.v11i1-s.4523.

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Terpenes are a huge and assorted class of natural mixes, created by an assortment of plants, especially conifers, other plants and by some insects. Terpenes regularly have a solid smell and may ensure the plants that produce them by deterring herbivores and by pulling in hunters and parasites of herbivores. Terpene are the essential constituents of the basic oils of numerous kinds of plan Essential oils are utilized generally as aromas in perfumery and for example, fragrant healing. Manufactured varieties and subsidiaries of regular terpenes extraordinarily extend the assortment of fragrances
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Wojtunik-Kulesza, Karolina A., and Monika Waksmundzka- Hajnos. "Natural terpenes as substances with multidirectional biological activities." Postępy Polskiej Medycyny i Farmacji 6 (May 8, 2019): 43–50. http://dx.doi.org/10.5604/01.3001.0013.2320.

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Terpenes, secondary metabolites, are considered by scientists around the World. Multidirectional biological activities of these substances encourage researchers to their detail analysis towards numerous diseases such as neurodegenerative or metabolic. In the presented paper, authors have focused on Alzheimer’s disease and diabetes as potential direction of terpenes’ activity. According to available literature, terpenes exhibit satisfactory antioxidant activity and ability to inhibition AChE, BuChE (Alzhiemer’s disease) and α-amylase, α-glucosidase (diabetes). Basis of the presented research ar
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Guimarães, Aline Cristina, Leandra Martins Meireles, Mayara Fumiere Lemos, et al. "Antibacterial Activity of Terpenes and Terpenoids Present in Essential Oils." Molecules 24, no. 13 (2019): 2471. http://dx.doi.org/10.3390/molecules24132471.

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Background: The antimicrobial activity of essential oils has been reported in hundreds of studies, however, the great majority of these studies attribute the activity to the most prevalent compounds without analyzing them independently. Therefore, the aim was to investigate the antibacterial activity of 33 free terpenes commonly found in essential oils and evaluate the cellular ultrastructure to verify possible damage to the cellular membrane. Methods: Screening was performed to select substances with possible antimicrobial activity, then the minimal inhibitory concentrations, bactericidal act
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Cal, Krzysztof. "Skin Penetration of Terpenes from Essential Oils and Topical Vehicles." Planta Medica 72, no. 4 (2006): 311–16. http://dx.doi.org/10.1055/s-2005-916230.

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Dissertations / Theses on the topic "Terpenes – Essences and essential oils"

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Ajayi, Emmanuel Olusegun. "Interaction of terpenes and oxygenated terpenes with some drugs." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/418.

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SFME and HD for the extraction of essential oil in Lavandula officinalis in Alice have been reported. A total of 59 compounds were identified with the major compound being 1,8-cineole, an oxygenated monoterpene, with 46.89% and 44.84% yield obtained for HD and SFME respectively. Charge transfer (CT) complexes formed between α-pinene, 1,8-cineole and camphor as electron donors with iodine as the electron acceptor have been studied spectrophotometrically in methylene chloride solution. The Benesi- Hildebrand equation has been applied to estimate the formation constant (Kf) and molecular extincti
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Zabaras, Dimitrios. "Determination of induced changes in foliar emissions of terpene-inducing plants /." View thesis, 2003. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030923.145135/index.html.

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Thesis (Ph. D.)--University of Western Sydney, 2003.<br>A thesis presented in fulfilment of the requirements for the degree of Doctor of Philosophy, College of Science, Technology and Environment, University of Western Sydney, May, 2003. Includes bibliographical references.
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Griffin, Shane. "Aspects of antimicrobial activity of terpenoids and the relationship to their molecular structure /." View thesis View thesis, 2000. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030429.142248/index.html.

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Toscan, Cristiane Menegotto. "Atividade antimicrobiana e antioxidante de terpenoides." reponame:Repositório Institucional da UCS, 2010. https://repositorio.ucs.br/handle/11338/564.

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Terpenos são compostos que fazem parte da constituição de óleos essenciais. Estes compostos são formados pela condensação de unidades de isopreno e quando contêm oxigênio são denominados terpenoides. O presente trabalho teve como objetivo avaliar a atividade antimicrobiana e antioxidante dos terpenoides citral, citronelal, citronelol, 1,8-cineol, geraniol, α-terpineol e do sesquiterpeno β-cariofileno. Para tanto, as concentrações inibitórias mínimas (CIM) e as doses inibitórias 50% (DI50) foram determinadas através do método de diluição seriada (0 a 10 μL/mL v/v) em microplacas. A viabilidade
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Hoppen, Carolina. "Efeitos do estresse biótico na expressão de terpenos em plantas: Varronia curassavica Jacq. and Pistacia palaestina Boiss." Universidade Tecnológica Federal do Paraná, 2018. http://repositorio.utfpr.edu.br/jspui/handle/1/3260.

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Conselho Nacional do Desenvolvimento Científico e Tecnológico (CNPq)<br>Os terpenos constituem a classe de produtos naturais com maior diversidade química e estrutural, estando associados ao metabolismo das plantas e às interações destas com outros organismos. Estes compostos, as enzimas que os sintetizam e as plantas que os produzem são amplamente estudados em diferentes aspectos. Para melhor compreensão da expressão de terpenos em plantas sob estresse biótico, as espécies Varronia curassavica e Pistacia palaestina foram estudadas neste trabalho. Folhas de V. curassavica contém óleo essencial
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Gersbach, Paul Vincent, University of Western Sydney, and of Science Technology and Environment College. "Aspects of essential oil secretion in vascular plants." THESIS_CSTE_XXX_Gersbach_P.xml, 2001. http://handle.uws.edu.au:8081/1959.7/775.

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A study of some aspects of essential oil secretion in plants was conducted. The first part of the study involved analysis of the volatile terpenoid content and composition of leaf extracts from a range of Australian native plants by gas chromatography and mass spectrometry. Secretory structures were studied by several microscopic imaging techniques including conventional bright and dark field optical microscopy, confocal microscopy, and scanning (SEM) and transmission (TEM) electron microscopy. Three methods were employed for scanning electron microscopy. Sample material was prepared for conve
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Nyiramana, Lunianga Marie. "Stratégies de mise en marché des huiles essentielles québécoises /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1991. http://theses.uqac.ca.

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Phillips, Alicia Kyser Appel Arthur G. "Toxicity and repellency of essential oils to the German cockroach (Dictyoptera: Blattellidae)." Auburn, Ala., 2009. http://hdl.handle.net/10415/1942.

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Gersbach, Paul V. "Aspects of essential oil secretion in vascular plants /." View thesis, 2001. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20031223.143208/index.html.

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Thesis (Ph.D.) -- University of Western Sydney, 2001.<br>"This thesis is presented in fulfilment of the degree of Doctor of Philosophy in Science at the University of Western Sydney, Richmond, New South Wales, Australia" Bibliography : p. 145-163.
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Makgwane, Peter Ramashadi. "Characterization of essential oils by comprehensively coupled supercritical fluid and gas chromatography (SFGxGC)." Pretoria ; [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-02222007-184250.

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Books on the topic "Terpenes – Essences and essential oils"

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Lawrence, Brian M. Essential oils, 2001-2004. Allured Pub. Corp., 2006.

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Susan, Drury, ed. Healing oils and essences. Hale, 1988.

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Baruah, Akhil, and Subhan C. Nath. Natural essential oils: Fragrances and flavours. Aavishkar Publishers, Distributors, 2013.

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375 essential oils and hydrosols. Frog, 1999.

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Essential oils in Nepal: A practical guide to essential oils and aromatherapy. Himalayan Bio Trade Pvt. Ltd., 2009.

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Sellar, Wanda. The directory of essential oils. C.W. Daniel Co., 1999.

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The directory of essential oils. C.W. Daniel, 2001.

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Wildwood, Christine. Aromatherapy: Massage with essential oils. Elements Books, 1991.

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Identification of essential oils by ion trap mass spectroscopy. Academic Press, 1989.

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Publishing, Essential Science. Essential oils: Pocket reference. Essential Science Publishing, 2007.

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Book chapters on the topic "Terpenes – Essences and essential oils"

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Karlsen, Jan. "Encapsulation and Other Programmed/Sustained-Release Techniques for Essential Oils and Volatile Terpenes." In Handbook of Essential Oils. CRC Press, 2020. http://dx.doi.org/10.1201/9781351246460-26.

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Lemberkovics, É., and G. Verzár-Petri. "Gas Chromatographic Characterization of Frequently Occurring Sesqui-Terpenes in Essential Oils." In Essential Oils and Aromatic Plants. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5137-2_8.

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Pandit, Jayamanti, Mohammed Aqil, and Yasmin Sultana. "Terpenes and Essential Oils as Skin Penetration Enhancers." In Percutaneous Penetration Enhancers Chemical Methods in Penetration Enhancement. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-47039-8_11.

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Kimoto, Mari, Yasuko Fukushima, and Taeko Yamada. "Neural Responses of Olfactory Bulb and Pyriform Cortex to Odors of Essential Oils and Terpenes in Rats." In Olfaction and Taste XI. Springer Japan, 1994. http://dx.doi.org/10.1007/978-4-431-68355-1_180.

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"Essential Oils and Terpenes." In Percutaneous Penetration Enhancers. CRC Press, 2005. http://dx.doi.org/10.1201/9781420039207-19.

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Michniak, Bozena, Rashmi Thakur, and Yiping Wang. "Essential Oils and Terpenes." In Percutaneous Penetration Enhancers, Second Edition. CRC Press, 2005. http://dx.doi.org/10.1201/9781420039207.ch13.

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Noriega, Paco. "Terpenes in Essential Oils: Bioactivity and Applications." In Terpenes and Terpenoids [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.93792.

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Secondary metabolites from plant organisms have always been excellent options for the pharmaceutical, cosmetic, and food industries. Essential oils are a type of metabolites found in vegetables, and their chemical composition is diverse; however, monoterpenes and sesquiterpenes are inside the most abundant molecules. These terpenes have a diverse chemical composition that range from a simple molecule with carbon and hydrogen to more complex molecules with oxygenated organic groups, such as alcohols, aldehydes, ketones, and ethers. Many of these molecules with 10 and 15 carbon atoms have an especially important biological activity, being important the antimicrobial, antifungal, antioxidant, anti-inflammatory, insecticide, analgesic, anticancer, cytotoxic, among others. Some of these substances are potentially toxic, and hence, they should be handled with caution, especially when they are pure. They are easily obtained by different methods, and their industrial value grows every year, with a market of several million dollars. This chapter seeks to provide a better understanding of this type of bioactive molecules, with an emphasis in those whose information is remarkable in the scientific literature and whose value for health and human well-being makes them extremely important.
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Karlsen, Jan. "Encapsulation and Other Programmed Release Techniques for Essential Oils and Volatile Terpenes." In Handbook of Essential Oils. CRC Press, 2009. http://dx.doi.org/10.1201/9781420063165-c17.

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"Chapter 22Encapsulation and Other Programmed Release Techniques for Essential Oils and Volatile Terpenes." In Handbook of Essential Oils. CRC Press, 2015. http://dx.doi.org/10.1201/b19393-26.

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"Chapter Encapsulation and Other Programmed Release Techniques for Essential Oils and Volatile Terpenes." In Handbook of Essential Oils. CRC Press, 2009. http://dx.doi.org/10.1201/9781420063165-20.

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