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Trans cinnamaldehyde

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https://www.readbyqxmd.com/read/28627304/the-effects-of-selected-phytochemicals-on-biofilm-formed-by-five-methicillin-resistant-staphylococcus-aureus
#1
Barbara Kot, Kamila Wierzchowska, Agata Grużewska, Dzmitry Lohinau
The aim of this study was to evaluate the ability of 0.1% thyme oil (TO), trans-cinnamaldehyde (TC), ferulic acid (FA), p-coumaric acid (p-CA), caffeic acid (CA), lavender essential oil (LO), geranium essential oil (GO) and tee tree oil (TTO) to control biofilms formed by methicillin-resistant Staphylococcus aureus (MRSA) strains. Depending on the strains, TO reduced 59.7-85% of biofilm mass, while TC 52.9-82.4% after 48 h of treatment. Reduction of metabolic activity of biofilms in ranges 79.3-86% and 85...
June 18, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28605202/supramolecular-construction-of-an-aldehyde-cyclobutane-via-the-solid-state-combining-reversible-imine-formation-and-metal-organic-self-assembly
#2
Shalisa M Oburn, Dale C Swenson, S V Santhana Mariappan, Leonard R MacGillivray
A combination of metal-organic self-assembly and reversible imine formation is used to achieve an organic synthesis via the solid state. Imine bond formation is employed to install a pyridyl to the alkene trans-cinnamaldehyde while Ag(I) ions are used in a second step to assemble the pyridyl-functionalized alkene into a geometry in the solid state for an intermolecular [2 + 2] photodimerization. The alkene undergoes the cycloaddition reaction via a 1D coordination polymer to generate a pyridyl-functionalized cyclobutane stereoselectively and in quantitative yield...
June 15, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28489336/antimicrobial-activity-of-natural-products-against-clostridium-difficile-in-vitro
#3
Niloufar Roshan, Thomas V Riley, Katherine A Hammer
AIMS: To investigate the antimicrobial activity of various natural products against C. difficile in vitro. METHODS AND RESULTS: The antibacterial activity of 20 natural products was determined by the agar well diffusion and broth microdilution assays against four C. difficile strains, three comparator organisms and four gastrointestinal commensal organisms. Of the raw natural products, garlic juice had the highest activity. The most active processed products were peppermint oil and the four pure compounds trans-cinnamaldehyde, allicin, menthol and zingerone...
May 10, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28487683/trans-cinnamaldehyde-carvacrol-and-eugenol-reduce-campylobacter-jejuni-colonization-factors-and-expression-of-virulence-genes-in-vitro
#4
Abhinav Upadhyay, Komala Arsi, Basanta R Wagle, Indu Upadhyaya, Sandip Shrestha, Ann M Donoghue, Dan J Donoghue
Campylobacter jejuni is a major foodborne pathogen that causes severe gastroenteritis in humans characterized by fever, diarrhea, and abdominal cramps. In the human gut, Campylobacter adheres and invades the intestinal epithelium followed by cytolethal distending toxin mediated cell death, and enteritis. Reducing the attachment and invasion of Campylobacter to intestinal epithelium and expression of its virulence factors such as motility and cytolethal distending toxin (CDT) production could potentially reduce infection in humans...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28435717/a-cinnamaldehyde-schiff-base-of-s-4-methyl-benz-yl-di-thio-carbazate-crystal-structure-hirshfeld-surface-analysis-and-computational-study
#5
Enis Nadia Md Yusof, Mohamed I M Tahir, Thahira B S A Ravoof, Sang Loon Tan, Edward R T Tiekink
The title di-thio-carbazate ester (I), C18H18N2S2 [systematic name: (E)-4-methyl-benzyl 2-[(E)-3-phenyl-allyl-idene]hydrazinecarbodi-thio-ate, comprises an almost planar central CN2S2 residue [r.m.s. deviation = 0.0131 Å]. The methyl-ene(tolyl-4) group forms a dihedral angle of 72.25 (4)° with the best plane through the remaining non-hydrogen atoms [r.m.s. deviation = 0.0586 Å] so the mol-ecule approximates mirror symmetry with the 4-tolyl group bis-ected by the plane. The configuration about both double bonds in the N-N=C-C=C chain is E; the chain has an all trans conformation...
April 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28429097/immunomodulatory-and-therapeutic-role-of-cinnamomum-verum-extracts-in-collagen-induced-arthritic-balb-c-mice
#6
Mirza Muhammad Fahd Qadir, Attya Bhatti, Muhammad Usman Ashraf, Mansur Abdullah Sandhu, Sidrah Anjum, Peter John
ETHNOPHARMACOLOGICAL RELEVANCE: Cinnamomum verum (CV), also known as 'Dalchini', is the dry bark of the Cinnamomum verum (L.) plant, and has been used as a traditional Pakistani medicine to alleviate pain and inflammation in patients suffering from arthritic rheumatism. It contains alkaloids, triterpenes, Cinnamaldehyde and other volatile oils. The aim of the present study was to investigate the underlying biological effect of ethyl alcohol (EtOH) and methyl alcohol (MeOH) extracts from CV on collagen type-II induced arthritic (CIA) mice...
April 20, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28400011/use-of-enhanced-nisin-derivatives-in-combination-with-food-grade-oils-or-citric-acid-to-control-cronobacter-sakazakii-and-escherichia-coli-o157-h7
#7
Alicia Campion, Ruth Morrissey, Des Field, Paul D Cotter, Colin Hill, R Paul Ross
Cronobacter sakazakii and Escherichia coli O157:H7 are well known food-borne pathogens that can cause severe disease. The identification of new alternatives to heating to control these pathogens in foods, while reducing the impact on organoleptic properties and nutritional value, is highly desirable. In this study, nisin and its bioengineered variants, nisin V and nisin S29A, are used alone, or in combination with plant essential oils (thymol, carvacrol and trans-cinnamaldehyde) or citric acid, with a view to controlling C...
August 2017: Food Microbiology
https://www.readbyqxmd.com/read/28353001/de-novo-biosynthesis-of-trans-cinnamic-acid-derivatives-in-saccharomyces-cerevisiae
#8
Manuela Gottardi, Jan Dines Knudsen, Lydie Prado, Mislav Oreb, Paola Branduardi, Eckhard Boles
The production of natural aroma compounds is an expanding field within the branch of white biotechnology. Three aromatic compounds of interest are cinnamaldehyde, the typical cinnamon aroma that has applications in agriculture and medical sciences, as well as cinnamyl alcohol and hydrocinnamyl alcohol, which have applications in the cosmetic industry. Current production methods, which rely on extraction from plant materials or chemical synthesis, are associated with drawbacks regarding scalability, production time, and environmental impact...
March 29, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28342836/membrane-fatty-acid-composition-as-a-determinant-of-listeria-monocytogenes-sensitivity-to-trans-cinnamaldehyde
#9
Gil Rogiers, Biniam T Kebede, Ann Van Loey, Chris W Michiels
trans-Cinnamaldehyde, the major compound of cinnamon essential oil, is a potentially interesting natural antimicrobial food preservative. Although a number of studies have addressed its mode of action, the factors that determine bacterial sensitivity or tolerance to trans-cinnamaldehyde are poorly understood. We report the detailed characterization of a Listeria monocytogenes Scott A trans-cinnamaldehyde hypersensitive mutant defective in IlvE, which catalyzes the reversible transamination of branched-chain amino acids to the corresponding short-chain α-ketoacids...
March 23, 2017: Research in Microbiology
https://www.readbyqxmd.com/read/28334192/insecticidal-properties-of-essential-oils-and-some-of-their-constituents-on-the-turkestan-cockroach-blattodea-blattidae
#10
Sudip Gaire, Mary O'Connell, Francisco O Holguin, Anup Amatya, Scott Bundy, Alvaro Romero
The Turkestan cockroach, Blatta lateralis (Walker), has become the most important peridomestic species in urban areas of the Southwestern United States. The aim of this study was to evaluate the use of botanical compounds to control this urban pest. We tested the acute toxicity and repellency of six botanical constituents and three essential oils on Turkestan cockroach nymphs. Chemical composition of the essential oils was also determined. Topical and fumigant assays with nymphs showed that thymol was the most toxic essential oil constituent, with a LD50 of 0...
April 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28221905/efficacy-of-plant-derived-antimicrobials-in-controlling-enterohemorrhagic-escherichia-coli-virulence-in-vitro
#11
Sangeetha Ananda Baskaran, Anup Kollanoor-Johny, Meera Surendran Nair, Kumar Venkitanarayanan
Escherichia coli O157:H7 is a major foodborne pathogen that can cause serious human illness characterized by hemorrhagic diarrhea and kidney failure. The pathology of enterohemorrhagic E. coli O157:H7 (EHEC) infection is primarily mediated by verotoxins, which bind to the globotriaosylceramide receptor on host cells. Antibiotics are contraindicated for treating EHEC infection because they lead to increased verotoxin release, thereby increasing the risk of renal failure and death in patients. Thus, alternative strategies are needed for controlling EHEC infections in humans...
November 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28129937/determination-of-cinnamaldehyde-carvacrol-and-thymol-in-feedstuff-additives-by-pressurized-liquid-extraction-followed-by-gas-chromatography-mass-spectrometry
#12
Marta Jiménez-Salcedo, María Teresa Tena
Specific blends of essential oils (BEOs) are promising substitutes for antibiotics to promote livestock performance and to reduce the incidence of intestinal disorders. Microencapsulation of BEOs has shown to improve their stability, bioavailability and to control their release rate once they are added to the feedstuff. The development and validation of a method for determining essential oil components such as carvacrol, thymol and cinnamaldehyde in a microencapsulated material used as feed additive is presented...
March 3, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28075116/metal-organic-frameworks-for-thin-layer-chromatographic-applications
#13
Claudia Schenk, Christel Kutzscher, Franziska Drache, Stella Helten, Irena Senkovska, Stefan Kaskel
Preparation of thin-layer chromatographic (TLC) plates based on metal-organic frameworks (MOFs) as porous stationary phases is described. DUT-67 (DUT = Dresden University of Technology), a zirconium based MOF, was used in combination with a fluorescent indicator as stationary phase for analyzing a small selection of a wide spectrum of relevant analytes. The successful separation of benzaldehyde from trans-cinnamaldehyde and 4-aminophenol from 2-aminotoluene is reported as a model system using optimized eluent mixtures containing acetic acid...
January 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28063174/oral-supplementation-of-trans-cinnamaldehyde-reduces-uropathogenic-escherichia-coli-colonization-in-a-mouse-model
#14
A Narayanan, M S Muyyarikkandy, S Mooyottu, K Venkitanarayanan, M A R Amalaradjou
Urinary tract infections (UTIs) in the United States result in more than 7 million hospital visits per year. Uropathogenic Escherichia coli (UPEC) is responsible for more than 80% of UTIs. Although antibiotics are the drug of choice to control UTIs, their repeated use has resulted in the emergence of antibiotic-resistant UPEC. Thus, there is a need for effective alternate strategies to control UPEC infections. This study investigated the efficacy of trans-cinnamaldehyde (TC), a food-grade molecule present in cinnamon, in reducing UPEC colonization and pathogenesis in the lower UTI...
March 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28032317/cinnamomulactone-a-new-butyrolactone-from-the-twigs-of-cinnamomum-cassia-and-its-inhibitory-activity-of-matrix-metalloproteinases
#15
Geum Jin Kim, Jong Yeong Lee, Hyun Gyu Choi, So Young Kim, Eonmi Kim, Sang Hee Shim, Joo-Won Nam, Sang-Hyun Kim, Hyukjae Choi
Cinnamomum cassia (Lauraceae) has long been used as one of the most frequently used traditional oriental medicines for the treatment of gastritis, diabetes, blood circulation disturbance and inflammatory diseases. Cinnamomulactone (1), a new butyrolactone was isolated from the twigs of C. cassia together with nine known compounds, coumarin (2), trans-cinnamic acid (3), cinnamaldehyde (4), 2-hydroxycinnamaldehyde (5), 2-methoxycinnamaldehyde (6), 2-hydroxy-cinnamyl alcohol (7), benzoic acid (8), (+)-syringaresinol (9) and phenethyl (E)-3-[4-methoxyphenyl]-2-propenoate (10)...
March 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28029520/ultrasonic-nanoemulsification-of-food-grade-trans-cinnamaldehyde-1-8-cineol-and-investigation-of-the-mechanism-of-antibacterial-activity
#16
Roya Moghimi, Atousa Aliahmadi, Hasan Rafati
Using ultrasonic technology, trans-cinnamaldehyde as a natural antibacterial compound was used to prepare nano size emulsions to increase its bioavailability and therefore bactericidal action. Nanoemulsions containing trans-cinnamaldehyde as an active agent and 1,8 cineol as co additive oil (Ostwald ripening inhibitor) were formulated using probe sonicator. Three different determining factors, namely time of sonication, surfactant to oil ratio and type of emulsifier (Tween 80 and Tween 20) were investigated to enhance the stability profile...
October 22, 2016: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/27845466/organocatalytic-regiospecific-synthesis-of-1h-indene-2-carbaldehyde-derivatives-suppression-of-cycloolefin-isomerisation-by-employing-sterically-demanding-catalysts
#17
Hui Mao, Dong Wan Kim, Hun Yi Shin, Choong Eui Song, Jung Woon Yang
The regiospecific synthesis of 1H-indene-2-carbaldehyde derivatives was achieved through transition-metal-free, reductive cyclisation of ortho-formyl trans-cinnamaldehydes with Hantzsch ester in the presence of an aminocatalyst. In particular, cycloolefin isomerisation of the resulting products could be inhibited efficiently by the introduction of a sterically demanding stereo-defined aminocatalyst.
November 15, 2016: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/27796095/structure-activity-relationship-of-condensed-tannins-and-synergism-with-trans-cinnamaldehyde-against-caenorhabditis-elegans
#18
Honorata M Ropiak, Olivier Desrues, Andrew R Williams, Aina Ramsay, Irene Mueller-Harvey, Stig M Thamsborg
Parasitic gastrointestinal nematodes (GIN) of livestock are increasingly developing resistance to synthetic nematocidal drugs. Moreover, the use of nematocides can induce ecotoxicity by affecting free-living nematodes. Condensed tannins (CT) are a structurally diverse group of bioactive plant compounds possessing anthelmintic activity against GIN. We investigated the relationship between the chemical structure of contrasting, purified CT and nematocidal effects using Caenorhabditis elegans. We also explored whether the nematocidal activity of CT could synergize with trans-cinnamaldehyde (CIN)...
November 23, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27742359/fumigant-and-contact-toxicity-of-22-wooden-essential-oils-and-their-major-components-against-drosophila-suzukii-diptera-drosophilidae
#19
Junheon Kim, Miyeon Jang, Eunsik Shin, Jeongmin Kim, Si Hyeock Lee, Chung Gyoo Park
Fumigant and contact toxicities of 22 plant essential oils (EOs) from 14 families and their constituents against the adult spotted wing drosophila (SWD), Drosophila suzukii were examined. Analyses by GC, GC-MS, and NMR led to the identification of 2, 16, 13, 4, 6, 9, and 10 compounds from Gaultheria fragrantissima, Croton anistatum, Illicium verum, Liquidamabar orientalis, Cinnamomum cassia, Rosa damasena, and Santalum album, respectively. In fumigant toxicity test, G. fragrantissima, C. anistatum, and I. verum exhibited 100, 93...
October 2016: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/27619325/efficacy-of-trans-cinnamaldehyde-and-eugenol-in-reducing-acinetobacter-baumannii-adhesion-to-and-invasion-of-human-keratinocytes-and-controlling-wound-infection-in-vitro
#20
RANDOMIZED CONTROLLED TRIAL
Deepti P Karumathil, Meera Surendran-Nair, Kumar Venkitanarayanan
The study investigated the efficacy of two natural, plant-derived antimicrobials (PDAs), namely trans-cinnamaldehyde (TC), and eugenol (EG) for decreasing Acinetobacter baumannii adhesion to and invasion of human keratinocytes (HEK001). Moreover, the efficacy of two PDAs for inhibiting A. baumannii biofilm formation was determined using an in vitro collagen matrix wound model. Additionally, the effect of TC and EG on A. baumannii biofilm architecture was visualized using confocal scanning microscopy. Further the effect of both PDAs on genes critical for biofilm synthesis was determined using real-time quantitative polymerase chain reaction...
December 2016: Phytotherapy Research: PTR
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