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https://www.readbyqxmd.com/read/28818729/characterization-of-citrus-pectin-films-integrated-with-clove-bud-essential-oil-physical-thermal-barrier-antioxidant-and-antibacterial-properties
#1
Tanzeela Nisar, Zi-Chao Wang, Xi Yang, You Tian, Muneeb Iqbal, Yurong Guo
The increasing demand for bio-based materials to be used in food packaging has stimulated the development of novel, environmentally-friendly edible films. Antimicrobial films were developed by incorporating different levels of clove bud essential oil (0.5%, 1.0%, and 1.5%) into the citrus pectin in order to modify the functional properties of the films. Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry analysis (DSC) and X-ray diffraction (XRD) were performed, together with the determination of physical, optical, mechanical, antioxidant and antimicrobial properties of pectin emulsified films...
August 14, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28811611/the-antibacterial-and-antifungal-activity-of-six-essential-oils-and-their-cyto-genotoxicity-to-human-hel-12469-cells
#2
Andrea Puškárová, Mária Bučková, Lucia Kraková, Domenico Pangallo, Katarína Kozics
Six essential oils (from oregano, thyme, clove, lavender, clary sage, and arborvitae) exhibited different antibacterial and antifungal properties. Antimicrobial activity was shown against pathogenic (Escherichia coli, Salmonella typhimurium, Yersinia enterocolitica, Staphylococcus aureus, Listeria monocytogenes, and Enterococcus faecalis) and environmental bacteria (Bacillus cereus, Arthrobacter protophormiae, Pseudomonas fragi) and fungi (Chaetomium globosum, Penicillium chrysogenum, Cladosporium cladosporoides, Alternaria alternata, and Aspergillus fumigatus)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28805256/effects-of-euthanasia-methods-on-stable-carbon-%C3%AE-13-c-value-and-nitrogen-%C3%AE-15-n-value-isotopic-composition-of-fry-and-juvenile-rainbow-trout-oncorhynchus-mykiss
#3
Sarah Nahon, Sarah Séité, Joanna Kolasinski, Pierre Aguirre, Inge Geurden
RATIONALE: Carbon and nitrogen stable isotope analyses of fish tissues are now commonly used in ecological studies but mostly require the sacrifice of the animal. Ethical considerations recommend the use of anesthetics for tissue sampling. This study examines how anesthetics affect stable isotope ratios of fish compared with other euthanasia methods. METHODS: Rainbow trout fry and juveniles were sacrificed using ice-freezing (as this common method used to kill fish does not affect natural isotopic ratios), electronarcosis or an overdose of chemical anesthetics (2-phenoxyethanol, benzocaine and clove oil)...
August 14, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28772407/comparative-analysis-of-the-composition-and-active-property-evaluation-of-certain-essential-oils-to-assess-their-potential-applications-in-active-food-packaging
#4
Cornelia Vasile, Morten Sivertsvik, Amalia Carmen Miteluţ, Mihai Adrian Brebu, Elena Stoleru, Jan Thomas Rosnes, Elisabeta Elena Tănase, Waqas Khan, Daniela Pamfil, Călina Petruţa Cornea, Anamaria Irimia, Mona Elena Popa
The antifungal, antibacterial, and antioxidant activity of four commercial essential oils (EOs) (thyme, clove, rosemary, and tea tree) from Romanian production were studied in order to assess them as bioactive compounds for active food packaging applications. The chemical composition of the oils was determined with the Folin-Ciocâlteu method and gas chromatography coupled with mass spectrometry and flame ionization detectors, and it was found that they respect the AFNOR/ISO standard limits. The EOs were tested against three food spoilage fungi-Fusarium graminearum, Penicillium corylophilum, and Aspergillus brasiliensis-and three potential pathogenic food bacteria-Staphylococcus aureus, Escherichia coli, and Listeria monocytogenes-using the disc diffusion method...
January 7, 2017: Materials
https://www.readbyqxmd.com/read/28748336/continuous-release-of-oregano-oil-effectively-and-safely-controls-varroa-destructor-infestations-in-honey-bee-colonies-in-a-northern-climate
#5
Qodratollah Sabahi, Hanan Gashout, Paul G Kelly, Ernesto Guzman-Novoa
The ectoparasitic mite Varroa destructor is responsible for the death of millions of honey bee (Apis mellifera) colonies worldwide. Testing potential miticide compounds with different delivery methods that effectively control V. destructor and have low toxicity for honey bees is crucial to manage this parasite in hives. We determined the varroacide efficacy of three natural compounds delivered to hives with three application methods over a 4-week period. Oxalic acid in a sucrose solution was applied impregnated in cardboard (T1)...
July 26, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28720975/active-starch-biopolymeric-packaging-film-for-sausages-embedded-with-essential-oil-of-syzygium-aromaticum
#6
Mariane L Ugalde, Aline M de Cezaro, Felipe Vedovatto, Natalia Paroul, Juliana Steffens, Eunice Valduga, Geciane T Backes, Elton Franceschi, Rogério L Cansian
Starch polymer matrices were developed with the incorporation of 1% clove essential oil (EO) (Syzygium aromaticum) aiming for use as active packaging for sausages. At the concentration of 1% EO in the polymer matrix, it showed exponential behavior with respect to oil release over 30 days, with faster release in the beginning and a tendency towards a reduction in release velocity over time. The presence of OE in the biofilm led to significant differences versus the control in terms of aroma and flavor parameters...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28698512/eco-friendly-acaricidal-effects-of-nylon-66-nanofibers-via-grafted-clove-bud-oil-loaded-capsules-on-house-dust-mites
#7
Joo Ran Kim, Seong Hun Kim
Acaricidal nylon 66 fabrics (AN66Fs) grafted with clove oil-loaded microcapsules (COMCs) were developed against Dermatophagoides farina (D. gallinae). The average diameter was about 2.9 µm with a range of 100 nm-8.5 µm. COMCs carried clove oil loading of about 65 vol %. COMCs were chemically grafted to electrospun nylon nanofibers by the chemical reactions between -OH groups of COMCs and -COOH end groups of nylon fabrics to form ester linkages. AN66Fs had an effect on D. farinae depending on COMCs loadings...
July 10, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28683217/combination-of-antimicrobials-and-essential-oils-as-an-alternative-for-the-control-of-salmonella-enterica-multiresistant-strains-related-to-foodborne-disease
#8
Ana Lucía Solarte, Rafael Jesús Astorga, Fabiana Aguiar, Ángela Galán-Relaño, Alfonso Maldonado, Belén Huerta
Due to the increase in bacterial resistance to antimicrobials (AMBs) commonly used in veterinary and human medicine, the new strategies for controlling zoonoses focus on the study of natural products with demonstrated AMB activity, such as essential oils (EOs). The aim of this study was to evaluate the in vitro effect of the combination of enrofloxacin (ENR), ceftiofur (CEF), and trimethoprim-sulfamethoxazole (SXT) with cinnamon, clove, oregano, and red thyme EOs against multiple drug-resistant strains of Salmonella enterica...
July 6, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28672824/myrtaceae-plant-essential-oils-and-their-%C3%AE-triketone-components-as-insecticides-against-drosophila-suzukii
#9
Chung Gyoo Park, Miyeon Jang, Eunsik Shin, Junheon Kim
Spotted wing drosophila (SWD, Drosophila suzukii (Matsumura), Diptera: Drosophilidae) is recognized as an economically important pest in North America and Europe as well as in Asia. Assessments were made for fumigant and contact toxicities of six Myrtaceae plant essential oils (EOs) and their components to find new alternative types of insecticides active against SWD. Among the EOs tested, Leptospermum citratum EO, consisting mainly of geranial and neral, exhibited effective fumigant activity. Median lethal dose (LD50; mg/L) values of L...
June 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28663695/in-vitro-evaluation-of-the-effects-of-some-plant-essential-oils-on-ascosphaera-apis-the-causative-agent-of-chalkbrood-disease
#10
Mohammad Javed Ansari, Ahmad Al-Ghamdi, Salma Usmani, Khalid Ali Khan, Abdulaziz S Alqarni, Manpreet Kaur, Noori Al-Waili
Ascosphaera apis is one of the major fungal pathogens of honey bee broods and the causative agent of Chalkbrood disease. The factors responsible for the pathogenesis of Chalkbrood disease are still not fully understood, and the increasing resistance of A. apis to commonly used antifungal agents necessitates a search for new agents to control this disease. The in vitro antifungal activities of 27 plant essential oils against two isolates of A. apis (Aksu-4 and Aksu-9) were evaluated. Out of the 27 plant essential oils tested, 21 were found to be effective in killing both isolates of A...
July 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28663694/the-effects-of-clove-oil-on-the-enzyme-activity-of-varroa-destructor-anderson-and-trueman-arachnida-acari-varroidae
#11
Li Li, Zhe-Guang Lin, Shuai Wang, Xiao-Ling Su, Hong-Ri Gong, Hong-Liang Li, Fu-Liang Hu, Huo-Qing Zheng
Varroa destructor, a key biotic threat to the Western honey bee, has played a major role in colony losses over the past few years worldwide. Overuse of traditional acaricides, such as tau-fluvalinate and flumethrin, on V. destructor has only increased its tolerance to them. Therefore, the application of essential oils in place of traditional pesticides is an attractive alternative, as demonstrated by its high efficiency, lack of residue and tolerance resistance. To study the acaricidal activity of essential oils, we used clove oil (Syzygium aromaticum L...
July 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28653988/unequivocal-identification-of-1-phenylethyl-acetate-in-clove-buds-syzygium-aromaticum-l-merr-l-m-perry-and-clove-essential-oil
#12
Klaus Gassenmeier, Hugo Schwager, Eric Houben, Robin Clery
The natural occurrence of 1-phenylethyl acetate (styrallyl acetate) was confirmed in commercially available dried clove buds and also in the hydrodistilled oil from clove buds. This confirms previous reports and other anecdotal evidence for its occurrence in nature.
June 27, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28645519/the-repellent-efficacy-of-eleven-essential-oils-against-adult-dermacentor-reticulatus-ticks
#13
Katarína Štefanidesová, Ľudovít Škultéty, Olivier A E Sparagano, Eva Špitalská
Dermacentor reticulatus ticks are among the most important arthropod vectors of zoonotic disease agents in Europe. Eleven essential oils, namely basil (Ocimum basilicum), bergamot (Citrus bergamia), clove bud (Syzygium aromaticum), citronella (Cymbopogon winterianus), creeping thyme (Thymus serpyllum), lavender (Lavandula angustifolia), lemon-scented gum (Corymbia citriodora), marjoram (Origanum majorana), peppermint (Mentha piperita), spearmint (M. spicata), and red thyme (Thymus vulgaris) were tested for repellency against adult D...
August 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28629195/candida-albicans-impairments-induced-by-peppermint-and-clove-oils-at-sub-inhibitory-concentrations
#14
Katarzyna Rajkowska, Anna Otlewska, Alina Kunicka-Styczyńska, Agnieszka Krajewska
Members of Candida species cause significant health problems, inducing various types of superficial and deep-seated mycoses in humans. In order to prevent from Candida sp. development, essential oils are more and more frequently applied, due to their antifungal activity, low toxicity if used appropriately, and biodegrability. The aim of the study was to characterize the early alterations in Candida albicans metabolic properties in relation to proteins and chromosomal DNA profiles, after treatment with peppermint and clove oils at sub-inhibitory concentrations...
June 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28573726/effect-of-curry-leaf-and-clove-bud-essential-oils-on-textural-and-oxidative-stability-of-chill-stored-sutchi-catfish-fillets
#15
P K Binsi, George Ninan, C N Ravishankar
Effect of coating with curry leaf and clove essential oils (EO) on oxidative and textural stability of sutchi catfish fillets were evaluated during chilled storage. The changes in parameters associated with textural and lipid degradation was also evaluated to ascertain the interactive effect of polyphenols with muscle proteins. Further, the results were compared against vacuum and conventional polyethylene packaging practices. Prior to coating, the properties of antioxidants were evaluated in vitro based on total phenolic and flavonoid contents, 2, 2-diphenyl-1- picrylhydrazyl radical scavenging activity, inhibition of linoleic acid peroxidation, iron reducing power, and metal chelating ability...
June 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28525889/eugenol-alleviated-breast-precancerous-lesions-through-her2-pi3k-akt-pathway-induced-cell-apoptosis-and-s-phase-arrest
#16
Min Ma, Yi Ma, Gui-Juan Zhang, Rui Liao, Xue-Feng Jiang, Xian-Xin Yan, Feng-Jie Bie, Xiao-Bo Li, Yan-Hong Lv
Eugenol can be separated from the oil extract of clove bud, and has many pharmacological functions such as anticancer and transdermal absorption. HER2/PI3K-AKT is a key signaling pathway in the development of breast cancer. In this study, 80 μM eugenol could significantly inhibit the proliferation of HER-2 positive MCF-10AT cells and the inhibition rate was up to 32.8%, but had no obvious inhibitory effect on MCF-7 and MCF-10A cells with HER2 weak expression. Eugenol also significantly induced human breast precancerous lesion MCF-10AT cell apoptosis and cell cycle S-phase arrest, but the biological effects nearly disappeared after HER2 over-expression through transfecting pcDNA3...
May 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28516411/preparation-of-essential-oil-based-microemulsions-for-improving-the-solubility-ph-stability-photostability-and-skin-permeation-of-quercetin
#17
Xia Lv, Tiantian Liu, Huipeng Ma, Yan Tian, Lei Li, Zhen Li, Meng Gao, Jianbin Zhang, Zeyao Tang
Quercetin can bring many benefits to skin based on its various bioactivities. However, the therapeutic effect of quercetin is limited due to the poor water solubility, pH instability, light instability, and skin permeation. The aim of the present work was applying essential oil-based microemulsions to improve the solubility, pH stability, photostability, and skin permeation of quercetin for topical application. Peppermint oil (PO-ME), clove oil (CO-ME), and rosemary oil (RMO-ME) were selected as model essential oils...
May 17, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28512603/bactericidal-activity-of-herbal-volatile-oil-extracts-against-multidrug-resistant-acinetobacter-baumannii
#18
Amornrat Intorasoot, Piyaorn Chornchoem, Siriwoot Sookkhee, Sorasak Intorasoot
AIM: The aim of the study is to investigate the antibacterial activity of 10 volatile oils extracted from medicinal plants, including galangal (Alpinia galanga Linn.), ginger (Zingiber officinale), plai (Zingiber cassumunar Roxb.), lime (Citrus aurantifolia), kaffir lime (Citrus hystrix DC.), sweet basil (Ocimum basilicum Linn.), tree basil (Ocimum gratissimum), lemongrass (Cymbopogon citratus DC.), clove (Syzygium aromaticum), and cinnamon (Cinnamomum verum) against four standard strains of Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Acinetobacter baumannii, and 30 clinical isolates of multidrug-resistant A...
April 2017: Journal of Intercultural Ethnopharmacology
https://www.readbyqxmd.com/read/28503381/a-survey-of-fishes-associated-with-hawaiian-deep-water-halimeda-kanaloana-bryopsidales-halimedaceae-and-avrainvillea-sp-bryopsidales-udoteaceae-meadows
#19
Ross C Langston, Heather L Spalding
The invasive macroalgal species Avrainvillea sp. and native species Halimeda kanaloana form expansive meadows that extend to depths of 80 m or more in the waters off of O'ahu and Maui, respectively. Despite their wide depth distribution, comparatively little is known about the biota associated with these macroalgal species. Our primary goals were to provide baseline information on the fish fauna associated with these deep-water macroalgal meadows and to compare the abundance and diversity of fishes between the meadow interior and sandy perimeters...
2017: PeerJ
https://www.readbyqxmd.com/read/28484741/effects-of-clove-oil-and-lidocaine-hcl-anesthesia-on-water-parameter-during-simulated-transportation-in-the-marine-medaka-oryzias-dancena
#20
In-Seok Park, Hyun Woo Gil, Tae Ho Lee, Yoon Kwon Nam, Sang Gu Lim, Dong Soo Kim
Optimum concentrations of anesthetic clove oil and anesthetic lidocaine-HCl were determined for a species of adult marine medaka, Oryzias dancena, over a range of salinity conditions, and investigated in a transport simulation experiment by analyzing various water and physiological parameters. Research indicated that the higher the concentration of anesthetic at each salinity, the shorter the anesthesia time at each salinity. At each concentration, fish were anesthetized slower at water salinities over 10 ppt (P<0...
March 2017: Balsaeng'gwa Saengsig
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