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Academic literature on the topic 'Menthol'

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Published: 4 June 2021
Last updated: 1 August 2024

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Journal articles on the topic "Menthol"

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Chiou, Tai-Ying, Shiori Nomura, Masaaki Konishi, Chien-Sen Liao, Yasutaka Shimotori, Miki Murata, Naofumi Ohtsu, et al. "Conversion and Hydrothermal Decomposition of Major Components of Mint Essential Oil by Small-Scale Subcritical Water Treatment." Molecules 25, no. 8 (April 22, 2020): 1953. http://dx.doi.org/10.3390/molecules25081953.

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Thermal stabilities of four major components (l-menthol, l-menthone, piperitone, and l-menthyl acetate) of Japanese mint essential oil were evaluated via subcritical water treatment. To improve experimental throughput for measuring compound stabilities, a small-scale subcritical water treatment method using ampoule bottles was developed and employed. A mixture of the four major components was treated in subcritical water at 180–240 °C for 5–60 min, and then analyzed by gas chromatography. The results indicated that the order of thermal resistance, from strongest to weakest, was: l-menthyl acetate, l-menthol, piperitone, and l-menthone. In individual treatments of mint flavor components, subsequent conversions of l-menthyl acetate to l-menthol, l-menthol to l-menthone, l-menthone to piperitone, and piperitone to thymol were observed in individual treatments at 240 °C for 60 min. As the mass balance between piperitone and thymol was low, the hydrothermal decomposition of the components was considered to have occurred intensely during, or after the conversion. These results explained the degradation of mint essential oil components under subcritical water conditions and provided the basis for optimizing the extraction conditions of mint essential oils using subcritical water.
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Nadeem, M. A., B. K. Saxena, and N. Akbar. "Chemical Profile and Extraction Technique of Oil of Mentha Arvensis." IRA-International Journal of Technology & Engineering (ISSN 2455-4480) 6, no. 2 (February 28, 2017): 24. http://dx.doi.org/10.21013/jte.v6.n2.p2.

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<em>Menthol mint oil is distilled by water steam distillation from leaves of Mentha arvensis and is the most importance source of L-menthol. It contains L-menthol 68.3%, menthone 8.2%, isomenthone 4.4%, menthyl acetate 4.3%, mixture of isomers of menthol 4.5%, cis-3- hexanal 0.2-% and limonene 1.2%, However percentage of components depends on the genetic and ecological conditions. Major component L-Menthol is isolated by freezing at low temperature with the recovery of around 65% in form of menthol flakes and the remaining material is known as DMO or dementholised oil (30%). During the process 1% loss is generally found. All the components are being used in Flavours, Pharmaceuticals, Tobacco and other cosmetic Industries.</em>
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&NA;. "Menthol." Reactions Weekly &NA;, no. 981 (December 2003): 14. http://dx.doi.org/10.2165/00128415-200309810-00044.

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Schäfer, Bernd. "Menthol." Chemie in unserer Zeit 47, no. 3 (June 2013): 174–82. http://dx.doi.org/10.1002/ciuz.201300599.

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Jao, Nancy C., Marcia M. Tan, Phoenix A. Matthews, Melissa A. Simon, Robert Schnoll, and Brian Hitsman. "Menthol Cigarettes, Tobacco Dependence, and Smoking Persistence: The Need to Examine Enhanced Cognitive Functioning as a Neuropsychological Mechanism." Nicotine & Tobacco Research 22, no. 4 (December 14, 2018): 466–72. http://dx.doi.org/10.1093/ntr/nty264.

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Abstract Introduction Despite the overall decline in the prevalence of cigarette use in the United States, menthol cigarette use among smokers is rising, and evidence shows that it may lead to more detrimental effects on public health than regular cigarette use. One of the mechanisms by which nicotine sustains tobacco use and dependence is due to its cognitive enhancing properties, and basic science literature suggests that menthol may also enhance nicotine’s acute effect on cognition. Aims and Methods The purpose of this review is to suggest that the cognitive enhancing effects of menthol may be a potentially important neuropsychological mechanism that has yet to be examined. In this narrative review, we provide an overview of basic science studies examining neurobiological and cognitive effects of menthol and menthol cigarette smoking. We also review studies examining menthol essential oils among humans that indicate menthol alone has acute cognitive enhancing properties. Finally, we present factors influencing the rising prevalence of menthol cigarette use among smokers and the importance of this gap in the literature to improve public health and smoking cessation treatment. Conclusions Despite the compelling evidence for menthol’s acute cognitive enhancing and reinforcing effects, this mechanism for sustaining tobacco dependence and cigarette use has yet to be examined and validated among humans. On the basis of the basic science evidence for menthol’s neurobiological effects on nicotinic receptors and neurotransmitters, perhaps clarifying menthol’s effect on cognitive performance can help to elucidate the complicated literature examining menthol and tobacco dependence. Implications Menthol cigarette use has continued to be a topic of debate among researchers and policy makers, because of its implications for understanding menthol’s contribution to nicotine dependence and smoking persistence, as well as its continued use as a prevalent flavoring in tobacco and nicotine products in the United States and internationally. As international tobacco regulation policies have begun to target menthol cigarettes, research studies need to examine how flavoring additives, specifically menthol, may acutely influence neurobiological and cognitive functioning as a potential mechanism of sustained smoking behavior to develop more effective treatments.
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Talankova-Sereda, T. E., J. V. Kolomiets, A. F. Likhanov, A. V. Sereda, N. I. Kucenko, and E. O. Shkopinskiy. "Effect of clonal reproduction on quantitative indices and component composition of essential oil of peppermint varieties." Regulatory Mechanisms in Biosystems 9, no. 3 (July 28, 2018): 340–46. http://dx.doi.org/10.15421/021850.

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Quantitative and qualitative composition of essential oils of peppermint breeds Lebedinaya Pesnya, Lubenchanka, Lidiya, Ukrainskaya Perechnaya, Mama, Chornolista was investigated before and after clonal microreproduction by the method of isolated tissues and bodies culture in vitro. Methods of essential oil steam distillation, capillary gas chromatography and statistical analysis were used in the research. It is established that increase in essential oil quantity was observed for peppermint breeds on which reproduction and improvement іn vіtro technology was applied. As a result of clonal microreproduction of peppermint plants in culture іn vіtro on nutrient medium Murasige and Skug, in which the growth regulators 0.75 mg/l of 6-benzylaminopurine, 0.1 mg/l of adenine, 0.05 mg/l of indolil-3-acetic acid and 0.5 mg/l of gibberellins acid were added and virocide Ribavirin in concentration 10 mg/l, improvement was obtained in comparison with vegetatively reproduced plants; increase in essential oil quantity per hectare was established for the following breeds; Chornolista by 54.2%, Lebedinaya pesnya by 38.2%, Ukrainskaya Perechnaya by 36.7%, Mama by 28.5%, Lubenchanka by 17.1% and Lidiya by 11.6%. For oil content the highest indices were noted for Lubenchanka, Mama and Lebedinaya Pesnya peppermint breeds with product yield 4.02%, 3.98% and 3.84% respectively. It was established that the essential oil component composition in non-clonal peppermint plants raw materials and plants-regenerants after culture in vitro is variable depending on breed. Limonene, cineole, menthone, menthofuran, iso-menthone, menthyl acetate, β-caryophyllene, iso-menthol, menthol, pulegone, germacren, piperitone, carvone were identified in peppermint essential oil. High content of menthol, low content of carvone, piperitone, pulegone (except for Chornolista, Ukrainskaya Perechnaya breeds) and menthofuran (except for Chornolista, Ukrainskaya Perechnaya and Lubenchanka breeds) are characteristic for Ukrainian selection peppermint investigated breeds. A clear tendency to menthol and menthone content ratio increase is observed in plants which were improved in conditions іn vіtro. Pulegone was not detected in essential oil samples of Lebedinaya Pesnya, Lidiya and Mama breeds. Biochemical markers of Lebedinaya Pesnya, Lubenchanka, Mama breeds, which differentiate them within the group of investigated breeds, are higher limonene, piperitone and menthol pool; for Ukrainskaya Perechnaya and Chornolista breeds – pulegone, cineole and menthone; for Lidiya breed – iso-menthone.
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Odinokov, V. N. "The synthesis of menthone by ozonization of menthol." Russian Chemical Bulletin 47, no. 10 (October 1998): 2021–22. http://dx.doi.org/10.1007/bf02494523.

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Rahmawati, Rahmawati, Ayi Darmayi, and Safrizal Ahmaruddin. "Shampo Formula from Lime (Citrusaurantifolia) And Menthol (Mentholum)." Jurnal Perilaku Kesehatan Terpadu 2, no. 1 (August 16, 2023): 8–11. http://dx.doi.org/10.61963/jpkt.v2i1.12.

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The purpose of this study was to determine the manufacture of shampoo formulas from lime and menthol. This research method uses laboratory experimental methods with concentrations of 1%, 5%, 10%. Tests on the preparations made include examination of pH, irritation, foaming power, organoleptic, flowability. The formulation of the shampoo preparation using lime juice (Citrus aurantifolia) was made in several series of tests which included white color, fragrant, and had a pH ranging from 7.1 to 5.4, did not cause irritation to the scalp, decreased foam due to the addition of orange juice. lime (Citrus aurantifolia) and menthol (Mentholum. Conclusions that lime juice (Citrus aurantifolia) can be formulated as a shampoo preparation and it is recommended for further researchers to continue lime juice (Citrus aurantifolia) in the form of moisturizing cream, hair tonic and shampoo anti dandruff.
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Shukla, O. P., R. C. Bartholomus, and I. C. Gunsalus. "Microbial transformation of menthol and menthane-3,4-diol." Canadian Journal of Microbiology 33, no. 6 (June 1, 1987): 489–97. http://dx.doi.org/10.1139/m87-082.

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A bacterium isolated from sewage by enrichment on (−)-menthol will use as sole source of carbon (−)-menthol and the related compounds, (−)-isopulegol, (+)-isomenthol, (±)-neomenthol, geraniol, and menthane-3,4-diol, but not (+)-menthol and (+)-isopulegol. Medium from (−)-menthol grown cells contains menthone, 3,7-dimethyl-6-hydroxyoctanoic acid, and 3,7-dimethyl-6-oxo-octanoic acid. Cell suspensions incubated with (−)-menthol yielded the same intermediates. Metabolism of menthane-3,4-diol by this bacterium yielded the same oxo acid plus 4-hydroxy-3-keto-p-menthane. A pathway is proposed for the oxidation of menthol and menthane-3,4-diol by this organism.
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Zekovic, Zoran, Zika Lepojevic, Slavica Milic, Dusan Adamovic, and Ibrahim Mujic. "Supercritical CO2 extraction of mentha (Mentha piperita L.) at different solvent densities." Journal of the Serbian Chemical Society 74, no. 4 (2009): 417–25. http://dx.doi.org/10.2298/jsc0904417z.

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The chemical composition of mentha essential oil and mentha extracts obtained at different pressures/temperatures by supercritical fluid extraction (SFE) were studied by GC-MS. The menthol content was also determined spectrophotometrically. The predominant compounds in the essential oil and in the CO2 extract obtained at 100 bar were L-menthon and menthole but at higher pressures (from 150 to 400 bar), squalene was dominant. The equation of Naik et al. was used for modelling the mentha-supercritical CO2 system.
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Dissertations / Theses on the topic "Menthol"

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Khattabi, Mustapha. "La menthe poivrée et le menthol." Bordeaux 2, 1994. http://www.theses.fr/1994BOR2P003.

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Okazawa, Makoto. "Menthol receptors in cold-sensitive neurons." 京都大学 (Kyoto University), 2001. http://hdl.handle.net/2433/150218.

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Tran, Trong Than. "Effet de la combinaison de la température de l’eau bue et du menthol sur la performance aérobie en climat tropical." Thesis, Antilles, 2015. http://www.theses.fr/2015ANTI0012.

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La consommation de boissons froides et l’utilisation de menthol par voie orale sont des moyens efficaces pour lutter contre des effets néfastes du climat chaud /humide sur la performance aérobie. Les buts de cette thèse étaient 1) de déterminer l’efficacité des effets cumulatifs de l’eau froide et du menthol sur la performance aérobie et 2) d'identifier la capacité de renforcer la performance par la combinaison du précooling interne et du percooling interne en environnement tropical. Les expérimentations étaient des exercices de contre-la-montre, en laboratoire ou en extérieur, dans lesquelles les sujets ont bu des boissons (i. E. , eau neutre, eau froide ou glace pilée) avec ou sans menthol. Les principaux résultats mettent en évidence que l'ingestion d'une boisson au menthol augmente la performanceet cette augmentation s’accentue en diminuant la température du liquide ingéré (étude 1). Cette glace pilée mentholée semble mieux conserver, en conditions écologiques, la capacité d’amélioration de la performance observée en laboratoire (étude 2). Une fois que la glace pilée mentholée est prise au cours de l’effort, l’adjonction pré-exercice d’un refroidissement par boisson froide devient inutile pour accroître davantage la performance (étude 3). Enfin, une boisson froide au menthol permet de limiter le stress psycho-physiologique durant l’exercice (étude 1 et 2). L’ingestion d’eau froide/mentholée ou de glace pilée/mentholée pendant l’exercice semble être une stratégie efficace pour améliorer la performance aérobie et peut être recommandée pour les athlètes lors de compétitions sportives sous climat chaud (sec ou humide)
Cold drink consumption and the use of menthol by mouth are effective ways to fight against harmful effects of hot and humid climate on aerobic performance. The aims of this thesis were 1) to determine the effectiveness of the cumulative effects of the cold water and the menthol on aerobic performance and 2) to identify the ability to enhance performance by combining internal precooling and internal percooling in a tropical environment. The experiments were time trial, in a laboratory or outdoors, in which subjects absorbed beverages (i.e., neutral water, cold water, ice-slurry) with or without menthol. The main results show that the ingestion of beverage/menthol increases exercise performance and this increase is accentuated while decreasing the temperature of ingested beverage (Study 1). The ice-slurry/menthol seems to be better in preserving, in ecological conditions, observed improvement of exercise performance in the laboratory (Study 2). When ice-slurry/menthol is absorbed in the effort, the precooling by adding cold drink becomes unnecessary to further increase the performance (Study 3). Finally, a cold beverage/menthol limits psychological and physiological stress during exercise (Study 1 and 2).The ingestion of cold water/menthol or ice-slurry/menthol during exercise appears to be an effective strategy to improve aerobic performance and is recommended for athletes in sports competitions in a hot climate (dry or wet)
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Gillis, D. Jason. "Influence of menthol on human temperature regulation and perception." Thesis, University of Portsmouth, 2011. https://researchportal.port.ac.uk/portal/en/theses/influence-of-menthol-on-human-temperature-regulation-and-perception(7a1256d9-53cd-4afc-ac7c-c11fc2d2dbd0).html.

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When exercise is undertaken in warm, humid conditions, the thermal gradient between the skin and environment, and the capacity for evaporative heat loss, are reduced. These factors, along with an increase in metabolic heat production, lower work capacity and exercise performance. Thermoreceptors located within the skin and deep in the body convey information on this accumulation of thermal energy to higher brain structures and, if mean body temperature rises uncontrollably, the cumulative neuronal input is thought to produce inhibitory signals that lower work capacity, such that metabolic heat production decreases to protect the organism from heat injury. Lessening these inhibitory signals may enhance or help to maintain exercise performance in the heat. The inhibitory signals might be lessened by cooling the skin and deep body temperature prior to or during exercise, or perhaps by applying menthol on the skin, or some combination of these. Menthol is a chemical compound that activates cold receptors (TRPM8) in the skin to elicit cool sensations. These receptors are not otherwise activated unless cooled below 27 °C. Hence, menthol, when applied to the skin of heat stressed humans, may provide a “cool’’ neuronal input to higher brain structures in addition to the neuronal signals arising from warm thermoreceptors located within the body. But menthol may also induce a heat storage (cold defense) response that would then heighten the activity of warm receptors deep in the body. Therefore, it is not clear whether menthol might reduce, enhance or help to maintain exercise performance in heat stressed humans. Moreover, no studies have assessed the perceptual and thermoregulatory response to menthol during rest or exercise, or the consequence of its repeated use. Before it is recommended as a possible ergogenic aid, these studies should be undertaken. The early work presented in this thesis tested the hypotheses that a water-based spray, containing ethanol and/or menthol, would enhance evaporative cooling when sprayed on the skin, thereby lowering heat storage and improving thermal perception compared to an unsprayed Control condition; but menthol would also improve thermal perception independent of temperature by directly stimulating cold receptors, during rest and exercise in warm, humid conditions. The hypothesis that menthol-mediated cool sensations would not undergo any habituation after repeated exposures was also tested. The general approach to testing these hypotheses involved presenting human participants with a thermal challenge that would induce warm sensations and increase thermal discomfort, whilst encouraging a level of heat storage that could be compensated for by increasing heat loss through v sodilation and sweating. This was achieved by manipulating metabolic heat production through a combination of rest and fixed intensity exercise in warm (30 °C) and humid (70 %) conditions. The influence of a menthol solution spray was tested against the backdrop of this thermal challenge. The results supported the general hypothesis that a water-based upper-body spray containing menthol can increase sensations of coolth compared to no spraying or wateronly spraying during rest and exercise in warm, humid conditions, but menthol also influences body temperature regulation. The effect that menthol exerts over perception and thermoregulation differs by dose and fades with time. Specifically, 0.2 % menthol spraying encourages heat storage by enhancing vasoconstriction, and there is no habituation in these responses. 0.05 % menthol spraying did not encourage any additional heat storage compared to a Control spray. Menthol also influenced perception, with a 0.2 % menthol spray promoting cooler sensations and greater irritation than 0.05 % menthol and Control spraying. Compared to a Control spray, 0.2 % menthol reduced thermal comfort during rest and improved it during exercise, while 0.05 % menthol did not alter thermal comfort during rest, and may have improved it during exercise. Neither menthol spray influenced perceived exertion during exercise. Menthol-mediated cool sensations lasted 15 to 30 minutes. Both 0.2 % and 0.05 % menthol sprays underwent an habituation compared to the Control spray, with cool sensations diminishing after repeated daily exposures. It is concluded that a 0.05 % menthol spray, which induces cool sensations without a significant heat storage response, could be considered as a perceptual cooling intervention with some capacity to enhance evaporative heat loss when sprayed on the skin during rest and moderate fixed-intensity exercise in the heat. A 0.2 % menthol spray might be deployed later in exercise, but may increase heat storage and irritation. Further testing is required to identify whether menthol spraying improves maximal exercise performance.
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KUMARI, NAVEETA. "Production of menthol-loaded PCL nanoparticles by solvent displacement." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2676475.

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Abstract This Ph.D thesis focuses on the synthesis of menthol-loaded-Poly-ε-caprolactone nanoparticles (NP’s) for transdermal application. Polymers are increasingly needed to produce nanoparticles ready to convey drugs to the tissues or cells of interest. Polymer nanoparticles are submicron-sized colloidal systems.Without doubt, the adequacy of these systems relies upon the structure of the vehicle and, specifically, on the mean size and on the particle size distribution (PSD). The poly-ε-caprolactone (PCL) polymer is chosen to synthesize nanoparticles because of its adaptability and fine tunning of its physico-chemical properties (great biocompatibility and biodegradability) which can be changed to acquire the desired nanoparticle size. Nanospheres have a monolithic type of structure (network) in which drugs are dispersed or absorbed on the surfaces or in the particles. Nano-capsules are vesicular systems in which the drug is kept in a cavity comprising of an inner liquid encompassed by a polymeric layer, which gives a supporting structure to the encapsulated material. For this state the active principle is normally dissolved in the inner core, yet may likewise be absorbed to the capsule surface. Nanosphere or nanocapsule development basically relies upon the production process. Nanoparticles utilized as drug delivery systems ought to be made out of biodegradable, biocompatible and nontoxic polymers. A number of distinctive strategies can be used to integrate polymer nanoparticles. Each has their own particular points of interest and constraints, which normally include blending of two fluid streams, e.g. emulsification-evaporation, emulsification–diffusion and solvent displacement. The solvent displacement strategy is characterized by simplicity of reproducibility, the possibility to utilize solvents with low poisonous potential and above all controlled particle size distribution (PSD). The nano-precipitation system involves dissolving the drug and polymer in the same solvent and afterward blending them with an antisolvent (typically water) in which the drug is immiscible and the nanoparticles are spontaneously framed. In this study, the nanoparticles were produced by utilizing three intensive reactors: a confined impinging jet mixer (CIJM), a two-inlet vortex mixer (VM) and a four-inlet vortex mixer (MIVM), testing their performance in the same operating conditions. Dynamic light scattering was carried out to measure the mean nanoparticle size (dp), particle size distribution (PSD), zeta potential (Z-average) and Polydispersity index (PDI). Nanoparticle separation was carried out by a centrifugation process for Transmission Electron microscope (TEM) analysis and menthol loading evaluation. Menthol quantification was evaluated by Gas chromatography (GC). Differential scanning calorimetry and transmission and scanning electron microscopy techniques were considered for analysing the particle surface morphology and menthol and identification in the nanoparticles and melatonin suspension over textile fabrics. Exceptional micro scale reactors are extremely helpful to get an efficient blend of the considerable number of components present in the solvent solution. High super-saturation can be produced by distinctive micromixers, for example, the Confined Impinging Jets Mixer (CIJM) and the Multi Inlet Vortex Mixer (MIVM), in less time than the required time for nucleation and growth procedures of the precipitating solutes. Super saturation brings the unconstrained development of nanoparticles within the nano estimate limits. The nanoparticles were prepared using the aforementioned intensive mixers (CIJM and MIVM), PCL polymer and diverse internal cores (menthol, melatonin, miglyol etc). The main goal was to investigate the effect of these working parameters on the mean size of the nanoparticles, a reasonable design of Experiment (DoE) was utilized. Furthermore, the effect of the inlet feed speed Vj (Flow rate FR), mass proportion and quench volumetric proportion QR (dilution) on the mean size dp , the zeta potential Zp and poly dispersity index (PDI) of the nanoparticles was also explored. At first poly-ε-caprolactone nanoparticles (nanospheres) were produced under different working conditions. The essential goal of this evaluation was to prepare the nanoparticle synthesis with a wide size range of menthol-loaded –PCL. A further aim to advance the synthesis parameters. After early promising results it was evident that further examinations were required keeping in mind the final goal to optimize the mean size of the nanoparticles. Likewise, quantification of nanoparticles was completed with the specific end goal of estimating drug loaded and encapsulation efficiency. Quantification procedure included various stages followed by centrifugation, extraction and gas chromatography analysis. All nanoparticles studied in this proposition were produced by the solvent displacement technique, utilizing three reactors CIJM, MIVM-4 and VM-2. All trials were performed with a PCL of monolithic-type molecular weight (Mw) 14000 g/mol. Two unique solvents were utilized for the production of the nanoparticles; acetone and acetonitrile. Since these solvents satisfy the following criteria: adequate dissolvability of PCL, water miscibility and low harmfulness. The impact of solvents on the delivered nanoparticles utilizing acetone and acetonitrile was seen: with higher estimations of the inlet feed rate, the nanoparticles became distinctly smaller. In addition, preliminary trials using a third solvent tehtrahydroforan were also done for the sake of comparsion. The impact of the working conditions on the mean size of nanoparticles was explored the underlying polymer concentration, the inlet feed rate and the impacts of the post preparing conditions, for example, the quench (dilution). It was found that the initial polymer concentration, and in addition the inlet feed velocity, has a significant impact on the mean size of nanoparticles. With higher feeding concentrations of PCL polymer, nanoparticles became distinctly greater. When feed velocity was expanded the mean size of nanoparticles diminished. It was also observed that NP size was higher for acetonitrile in contrast with acetone solvent at comparable working conditions in all cases. Moreover, dilution of the solution containing nanoparticles (higher the quench) was found indispensible to obtain stable nanoparticles. In addition, by expanding the inlet feed rate, smaller nanoparticles with lower zeta potential, were acquired. Smaller nanoparticles were created in the MIVM regarding the CIJM. Polydispersity index (PDI, 0.05 ± 0.3) and zeta potential (-30 mV to -40 mV) were observed in all investigated experiments. After nanoparticles were produced, they were quantified. An exact and appropriate measurement of menthol was acquired by a Gas chromatography (GC). Results showed that the incorporation efficiency of menthol in the nanoparticles with expanding menthol content was very nearly 60 % - 80 % in both the CIJM and VM mixers, and this indicates that menthol was adequately exemplified by PCL polymer upon precipitation. Loading was assessed at 35 % - 50 % around, with expanding mass proportion of menthol and PCL, when utilizing both reactors. These results were confirmed through morphologic perceptions of nanoparticles utilizing transmission electronic microscope (TEM) examination. From there on, the work was centered around the synthesis of PCL nanocapsules containing differing internal cores (miglyol, and melatonin). Melatonin nanocapsules were further utilized for the impregnation of cotton fabrics. Furthermore, the synthesis and characterization of the nanocapsules formed by PCL (surface layer) and by melatonin or miglyol (in the core) was investigated. To optimize the nanocapsules production process, the impact of different working conditions was explored i.e. the underlying polymer concentration, the underlying, melatonin or miglyol concentrations and the inlet feed rate, on their mean sizes. Comparative conclusions, were observed for menthol loaded nanoparticles, that is when expanding inlet feed rate the mean size of nanocapsules diminished. Finally, it was also found that when concentrations of all substances was increased larger nanocapsules were shaped.
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Pace, Wendy Lee. "The Effect of Menthol on Nicotine Metabolism: a Cross Species Evaluation." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc407773/.

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The effect of menthol on nicotine metabolism was examined in liver S9 fractions of four different species and in the in vivo mouse model. The purpose of this study was to investigate three parameters: (1) biotransformation of nicotine to cotinine in various species (human, mouse, rat and trout) using in vitro methods; (2) to determine if the addition of menthol with nicotine altered biotransformation of nicotine to cotinine; (3) and to assess similar parameters in an in vivo mouse model. The major findings of this study include: (1) mice appear to metabolize nicotine, over time, in a manner similar to humans; (2) menthol decreased cotinine production, over time, after a single dose in mice; and (3) menthol increased cotinine production, over time, after repeated doses, in mice.
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Kreß, Nico [Verfasser], and Bernhard [Akademischer Betreuer] Hauer. "Development of a chemoenzymatic (-)-menthol synthesis / Nico Kreß ; Betreuer: Bernhard Hauer." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2018. http://d-nb.info/1169133010/34.

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Kahlow, Ulrich. "A model of the pressure dependence of the enantioselectivity of Candida rugosa lipase towards ( )-menthol = Entwicklung eines Modells zur Druckabhängigkeit der Enantioselektivität der Candida rugosa Lipase gegenüber ( )-Menthol /." [S.l. : s.n.], 2002. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB9789392.

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Eguae, Eniye Emmanuel. "Factors Associated with Menthol Cigarettes Smoking Among Youths Ages 12 to 19." ScholarWorks, 2018. https://scholarworks.waldenu.edu/dissertations/5184.

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Menthol is added to cigarettes to make smoking more convenient. Menthol is considered a contributing factor that makes smoking appealing to youths and their continuous smoking initiation, which progresses to regular cigarette smoking and addiction, especially among youths ages 12 to 19. Menthol encourages approximately 4,000 youths to experiment with smoking daily in the United States, of which approximately 1,000 become active smokers. Not enough is known regarding the influence of menthol on youth smoking initiation/smoking behavior. A quantitative analysis of data from the 2014 National Youth Tobacco Survey (NYTS) was used to explore the association between age, race/ethnicity, gender, grade (education level), and menthol cigarette smoking among youth ages 12 to 19. The sample size for this study consisted of 115 adolescents aged 12 to 19 years, in the United States taken from the 2014 NYTS data. The theoretical framework for this study was the theory of planned behavior (TPB). The independent variables were ethnicity/race, gender, age, and grades (education level), while the dependent variable is the type of smoking: menthol versus nonmenthol. Bivariate analysis revealed that there was a statistically significant relationship between age (p = <.001), race/ethnicity (p = <.001), gender (p = <.001), grade (education level) (p = <.001), and menthol cigarette smoking; however, no statistically significant results were obtained in the multivariate regression analysis. Future research is needed to better determine and understand the factors associated with youth smoking initiation and behavior. The potential positive social change impact of this study is a better understanding of youth smoking behavior and the development of more effective prevention interventions to protect the health of this vulnerable population.
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Steinhoff, Alexander [Verfasser]. "Kortikale Aktivierungsmuster Menthol-induzierter Kälteallodynie [[Elektronische Ressource]] : eine funktionelle MRT-Studie / Alexander Steinhoff." Kiel : Universitätsbibliothek Kiel, 2009. http://d-nb.info/1019870990/34.

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Books on the topic "Menthol"

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Leuschner, Maria. Vergleichende Untersuchungen zur litholytischen Wirksamkeit von Chenodesoxycholsäure, Ursodesoxycholsäure und einer Ursodesoxycholsäure-Menthol-Mischung bei Patienten mit Gallenblasensteinen. [s.l.]: [s.n.], 1994.

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Yi, Chung-sŏk. Nae insaeng ŭi ment'o Putta: Mentor. Sŏul-si: Pulgwang Ch'ulp'ansa, 2011.

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National Bank for Agriculture and Rural Development (India). Mentha, a commodity specific study =: Menthā, eka paṇya viśishṭa adhyayana. Lucknow: National Bank for Agriculture and Rural Development, 2010.

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Amoretti, Louis Nicolas. Menton. Paris: Le Cherche Midi, 1987.

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Johar, Shaz. Mental. Petaling Jaya, Malaysia: Fixi, 2012.

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Rondelli-Renoux, Valérie. Menton. Saint-Avertin: Sutton, 2013.

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Flade, Colby. Menthol. Flade, Colby, 2022.

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Flade, Colby. Menthol. Flade, Colby, 2022.

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Beck, Walter. Menthol Slim One-Twenty Blues. CreateSpace Independent Publishing Platform, 2014.

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Mans, Marita. Die Pharmakokinetik von Menthol bei Ratten. 1988.

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Book chapters on the topic "Menthol"

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Bährle-Rapp, Marina. "Menthol." In Springer Lexikon Kosmetik und Körperpflege, 348–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_6432.

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Misery, Laurent, and Sonja Ständer. "Menthol." In Pruritus, 262–64. London: Springer London, 2009. http://dx.doi.org/10.1007/978-1-84882-322-8_39.

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Zhao, Ying, Li-Da Du, and Guan-Hua Du. "Menthol." In Natural Small Molecule Drugs from Plants, 289–94. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8022-7_48.

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Šunjić, Vitomir, and Michael J. Parnham. "(−)-Menthol." In Signposts to Chiral Drugs, 117–24. Basel: Springer Basel, 2011. http://dx.doi.org/10.1007/978-3-0348-0125-6_9.

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Schomburg, Dietmar, and Dörte Stephan. "(−)-Menthol dehydrogenase." In Enzyme Handbook 10, 204–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-57756-7_55.

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Schomburg, Dietmar, and Dörte Stephan. "(—)-Menthol monooxygenase." In Enzyme Handbook, 599–601. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-57942-4_128.

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Wutt, Karl. "More Menthol." In Edition Transfer, 68–69. Vienna: Springer Vienna, 2010. http://dx.doi.org/10.1007/978-3-211-99154-1_13.

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Araújo, Demétrius A. M., Darizy F. Silva, Humberto C. Joca, José H. Leal-Cardoso, and Jader S. Cruz. "Menthol: Biological Effects and Toxicity." In Natural Products, 3989–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-22144-6_170.

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Misery, Laurent. "Menthol, Camphor and Other Topical Treatments." In Pruritus, 359–62. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-33142-3_47.

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Saenko, Galina, Tatiana Shuvaeva, and Irina Gaytotina. "Resistance of Variety Samples from Menthol Mint (Mentha L.) Collection to Rust." In XV International Scientific Conference “INTERAGROMASH 2022”, 1806–13. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-21219-2_200.

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Conference papers on the topic "Menthol"

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Dagli, E., U. Pece Sonmez, M. Guner, O. Elbek, P. Ay, F. Yildiz, T. Gezer, and M. Ceyhan. "Curcumventing the Menthol Ban: Internet sales of menthol balls." In ERS International Congress 2022 abstracts. European Respiratory Society, 2022. http://dx.doi.org/10.1183/13993003.congress-2022.1434.

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Jordt, S. E., H. C. Erythropel, A. Y. Yang, S. O'Malley, S. Krishnan-Sarin, J. B. Zimmerman, and S. V. Jabba. "Synthetic Cooling Agents in California-Marketed "Non-menthol" Cigarette Brands Introduced After the State’s Menthol Ban." In American Thoracic Society 2023 International Conference, May 19-24, 2023 - Washington, DC. American Thoracic Society, 2023. http://dx.doi.org/10.1164/ajrccm-conference.2023.207.1_meetingabstracts.a2633.

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Schnell, Melanie, Barbara Giuliano, Thomas Betz, V. Shubert, and David Schmitz. "A MINTY MICROWAVE MENAGERIE: THE ROTATIONAL SPECTRA OF MENTHONE, MENTHOL, CARVACROL, AND THYMOL." In 70th International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2015. http://dx.doi.org/10.15278/isms.2015.td02.

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Dagli, E., U. Pece, M. Guner, F. Yildiz, O. Elbek, P. Ay, T. Gezer, and M. Ceyhan. "New Product at Point of Sales : Menthol ball." In ERS International Congress 2022 abstracts. European Respiratory Society, 2022. http://dx.doi.org/10.1183/13993003.congress-2022.1428.

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Manful, A., N. Amanna, J. D. Blume, and M. C. Aldrich. "How Menthol Use Complicates Lung Cancer Screening Eligibility." In American Thoracic Society 2024 International Conference, May 17-22, 2024 - San Diego, CA. American Thoracic Society, 2024. http://dx.doi.org/10.1164/ajrccm-conference.2024.209.1_meetingabstracts.a4956.

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Timkin, Pavel, E. Timofeev, A. Chupalov, and Evgeniy Borodin. "ANALYSIS AND SELECTION OF LIGANDS FOR TRPM8 USING HARD DOCKING AND MACHINE LEARNING." In XIV International Scientific Conference "System Analysis in Medicine". Far Eastern Scientific Center of Physiology and Pathology of Respiration, 2020. http://dx.doi.org/10.12737/conferencearticle_5fe01d9b233509.17835494.

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In this work, using the in-silico experiment modeling method, the receptor and its ligands were docked in order to obtain the data necessary to study the possibility of using machine learning and hard intermolecular docking methods to predict potential ligands for various receptors. The protein TRPM8 was chosen, which is a member of the TRP superfamily of proteins and its classic agonist menthol as a ligand. It is known that menthol is able to bind to tyrosine 745 of the B chain. To carry out all the manipulations, we used the Autodock software and a special set of graphic tools designed to work with in silico models of chemicals. As a result of all the manipulations, the menthol conformations were obtained that can bind to the active center of the TRPM8 receptor.
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Cong Sun, Yechao Han, and Qiang Wu. "Determination of l-menthol in Qingxuanwan by callipary GC." In 2012 International Symposium on Information Technology in Medicine and Education (ITME 2012). IEEE, 2012. http://dx.doi.org/10.1109/itime.2012.6291428.

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Valentovic, Monica, Kathleen C. Brown, and Elizabeth McGuffey. "Renal Cytotoxicity of the E-Vaping Flavoring Agent Menthol." In ASPET 2024 Annual Meeting Abstract. American Society for Pharmacology and Experimental Therapeutics, 2024. http://dx.doi.org/10.1124/jpet.414.129161.

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Jordt, Sven E., Daniel N. Willis, Boyi Liu, and John B. Morris. "Menthol Attenuates Respiratory Irritation Responses To Multiple Cigarette Smoke Irritants." In American Thoracic Society 2012 International Conference, May 18-23, 2012 • San Francisco, California. American Thoracic Society, 2012. http://dx.doi.org/10.1164/ajrccm-conference.2012.185.1_meetingabstracts.a6745.

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Adeoye, Deborah O., Zaharaddeen S. Gano, Omar U. Ahmed, Suleiman M. Shuwa, Abdulazeez Y. Atta, Samuel Iwarere, Baba Y. Jubril, and Michael Daramola. "Synthesis and Characterisation of Menthol-Based Hydrophobic Deep Eutectic Solvents." In ECSOC 2023. Basel Switzerland: MDPI, 2023. http://dx.doi.org/10.3390/ecsoc-27-16334.

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Reports on the topic "Menthol"

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Kenkel, Donald, Alan Mathios, and Hua Wang. Menthol Cigarette Advertising and Cigarette Demand. Cambridge, MA: National Bureau of Economic Research, December 2015. http://dx.doi.org/10.3386/w21790.

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Cheng, Yu-Chun, Donald Kenkel, Alan Mathios, and Hua Wang. Are Menthol Smokers Different? An Economic Perspective. Cambridge, MA: National Bureau of Economic Research, July 2022. http://dx.doi.org/10.3386/w30286.

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Carpenter, Christopher, and Hai Nguyen. Intended and Unintended Effects of Banning Menthol Cigarettes. Cambridge, MA: National Bureau of Economic Research, February 2020. http://dx.doi.org/10.3386/w26811.

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Jacobs, John T., Randall Whitaker, Dave Byler, David A. Lemery, and Brian E. Tidball. Maintenance Mentor. Fort Belvoir, VA: Defense Technical Information Center, September 2003. http://dx.doi.org/10.21236/ada418249.

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Croteau, R. [Regulation of terpene metabolism]. [Mentha piperita, Mentha spicata]. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/6984924.

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With, Mary Anne Whalen. "Mentor Best Practices". Office of Scientific and Technical Information (OSTI), April 2015. http://dx.doi.org/10.2172/1177978.

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Schvaneveldt, Roger W., Gary B. Reid, Rebecca L. Gomez, and Sean Rice. Modeling Mental Workload. Fort Belvoir, VA: Defense Technical Information Center, September 1997. http://dx.doi.org/10.21236/ada387269.

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Bharadwaj, Prashant, Mallesh Pai, and Agne Suziedelyte. Mental Health Stigma. Cambridge, MA: National Bureau of Economic Research, June 2015. http://dx.doi.org/10.3386/w21240.

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Wintermute, Samuel, and Scott D. Lathrop. AI and Mental Imagery. Fort Belvoir, VA: Defense Technical Information Center, January 2008. http://dx.doi.org/10.21236/ada486517.

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Frank, Richard, and Thomas McGuire. Economics and Mental Health. Cambridge, MA: National Bureau of Economic Research, March 1999. http://dx.doi.org/10.3386/w7052.

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