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https://www.readbyqxmd.com/read/29771453/functionalization-of-lipid-based-nutrient-supplement-with-%C3%AE-cyclodextrin-inclusions-of-oregano-essential-oil
#1
Shashank Gaur, Emely C Lopez, Ankur Ojha, Juan E Andrade
Intestinal parasitic infection is one of the main causes of acute undernutrition in children. Oral consumption of oregano essential oil (OEO) can reduce intestinal parasitic infections, however, its addition to therapeutic and supplementary foods is hampered by its undesirable flavor. The objective of this study was to develop a functional lipid-based nutrient supplement (LNS) containing OEO, which is stable, acceptable and provides targeted intestinal delivery of bioactive. β-cyclodextrin (β-CyD) inclusion complexes of OEO (β-CyD-OEO), and carvacrol (β-CyD-CV) (1:1 molar) were prepared using slurry complexation (-20 °C) method and characterized based on encapsulation efficiency, moisture content, morphology, and 2-phase in vitro digestion stability...
May 17, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29770558/pharmacokinetic-and-antimicrobial-activity-of-a-new-carvacrol-based-product-against-a-human-pathogen-campylobacter-jejuni
#2
Marion Allaoua, Pierre Etienne, Virginie Noirot, Jean-Luc Carayon, Nathan Téné, Elsa Bonnafé, Michel Treilhou
AIM: In vitro and in vivo studies were conducted to test a new carvacrol-based product designed to delay the carvacrol release so that it could reach the caeca of broiler chickens in order to control Campylobacter jejuni. METHODS AND RESULTS: Antimicrobial activity of carvacrol, a constituent of oregano and thyme essential oil, has been demonstrated against C. jejuni in vitro, and this compound was found beneficial for broiler growth. Here, we tested a new liquid formulation that did not change the antibacterial efficacy of carvacrol against C...
May 16, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29753217/consumer-profile-and-acceptability-of-cooked-beef-steaks-with-edible-and-active-coating-containing-oregano-and-rosemary-essential-oils
#3
Ana Carolina Pelaes Vital, Ana Guerrero, Emilia Maria Barbosa Carvalho Kempinski, Jessica de Oliveira Monteschio, Cesar Sary, Tatiane Rogelio Ramos, María Del Mar Campo, Ivanor Nunes do Prado
Fresh animal products are highly perishable and characterized by a short shelf-life. Edible coatings with natural antioxidants (essential oils: EOs) could improve stability, ensure quality, and increase the shelf-life of fresh products. Due to the strong flavor of EOs, their use should consider consumer preferences and sensory acceptability. This study evaluated the effects of edible coating (with oregano and rosemary essential oil) on beef in relation to consumer preferences, besides the determination of habits of consumption and buying intentions of consumers...
May 4, 2018: Meat Science
https://www.readbyqxmd.com/read/29749766/evaluation-of-the-impact-of-varied-carvacrol-concentrations-on-salmonella-recovery-in-oregano-and-how-corn-oil-can-minimize-the-effect-of-carvacrol-during-preenrichment
#4
Junia Jean-Gilles Beaubrun, Nicole Addy, Zachary Keltner, Samantha Farris, Laura Ewing, Gopal Gopinath, Darcy E Hanes
Phenolic compounds, like carvacrol, in oregano interfere with the detection of foodborne pathogens such as Salmonella enterica. Carvacrol concentration varies based on plant cultivars and growth region. Six oregano cultivars were used to compare the impact of carvacrol concentration on Salmonella and to evaluate the effectiveness of corn oil to help increase Salmonella survival for detection. The results of Agilent 1200 series high-performance liquid chromatography analysis showed that carvacrol concentration in the six oregano cultivars ranged from 64 to 11,200 ppm...
May 11, 2018: Journal of Food Protection
https://www.readbyqxmd.com/read/29746162/antifungal-activity-of-essential-oils-against-azole-resistant-and-azole-susceptible-i-i-candida-glabrata-i-i-strains-vaginal-isolates
#5
Nadia Massa, Simone Cantamessa, Giorgia Novello, Elia Ranzato, Simona Martinotti, Matteo Pavan, Andrea Rocchetti, Graziella Berta, Elisa Gamalero, Elisa Bona
<i></i>Candida glabrata<i></i> is an opportunistic pathogen, associated with endocarditis, meningitis and disseminated disease and also with complicated vaginitis. Essential oils derived from aromatic plants are known in traditional medicine as antimicrobial agents and have antifungal properties. The aim of this work was to evaluate whether the twelve tested essential oils (tea tree, laurel, anise, basil, bergamot, lavender, mint, oregano, grapefruit, rosemary, winter savory and ginger) could have a transverse effect on <i></i>C...
May 10, 2018: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/29744941/carvacrol-and-human-health-a-comprehensive-review
#6
REVIEW
Mehdi Sharifi-Rad, Elena Maria Varoni, Marcello Iriti, Miquel Martorell, William N Setzer, María Del Mar Contreras, Bahare Salehi, Azam Soltani-Nejad, Sadegh Rajabi, Mercedeh Tajbakhsh, Javad Sharifi-Rad
Carvacrol (CV) is a phenolic monoterpenoid found in essential oils of oregano (Origanum vulgare), thyme (Thymus vulgaris), pepperwort (Lepidium flavum), wild bergamot (Citrus aurantium bergamia), and other plants. Carvacrol possesses a wide range of bioactivities putatively useful for clinical applications such antimicrobial, antioxidant, and anticancer activities. Carvacrol antimicrobial activity is higher than that of other volatile compounds present in essential oils due to the presence of the free hydroxyl group, hydrophobicity, and the phenol moiety...
May 9, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29724221/use-of-pinus-sylvestris-l-pinaceae-origanum-vulgare-l-lamiaceae-and-thymus-vulgaris-l-lamiaceae-essential-oils-and-their-main-components-to-enhance-itraconazole-activity-against-azole-susceptible-not-susceptible-cryptococcus-neoformans-strains
#7
Daniela Scalas, Narcisa Mandras, Janira Roana, Roberta Tardugno, Anna Maria Cuffini, Valeria Ghisetti, Stefania Benvenuti, Vivian Tullio
BACKGROUND: Cryptococcal infections, besides being a problem for immunocompromised patients, are occasionally being a problem for immunocompetent patients. In addition, the lower susceptibility of this yeast to azoles is a growing problem in health care. To date, there are very few molecules with any activity towards Cryptococcus neoformans, leading to heightened interest in finding new alternatives or adjuvants to conventional drugs for the treatment of mycosis caused by this yeast. Since the essential oils (EOs) are considered as a potential rich source of bioactive antimicrobial compounds, we evaluated the antifungal activity of Origanum vulgare (oregano), Pinus sylvestris (pine), and Thymus vulgaris (thyme red) EOs, and their components (α-pinene, carvacrol, thymol) compared with fluconazole, itraconazole, and voriconazole, against C...
May 3, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29688798/susceptibility-distribution-to-essential-oils-of-salmonella-enterica-strains-involved-in-animal-and-public-health-and-comparison-of-the-typhimurium-and-enteritidis-serotypes
#8
Ana Lucía Solarte, Rafael Jesús Astorga, Fabiana Carolina de Aguiar, Cristina De Frutos, Belén Barrero-Domínguez, Belén Huerta
To determine the distribution of the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of essential oils (EOs) of cinnamon (Cinnamomum zeylanicum), clove (Eugenia caryophyllata), oregano (Origanum vulgare), common thyme (Thymus vulgaris), and red thyme (Thymus zygis) against Salmonella enterica, double serial dilutions of each EO were challenged with 85 Salmonella strains belonging to 23 serotypes of animal origin. The results showed the bactericidal character of the EOs tested against S...
April 24, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29679674/combined-effects-of-octenylsuccination-and-oregano-essential-oil-on-sweet-potato-starch-films-with-an-emphasis-on-water-resistance
#9
Jing Li, Fayin Ye, Lin Lei, Guohua Zhao
The perishable character of moist food products demands packages with antimicrobial activity and water resistance. Oregano essential oil (OEO) and starch octenylsuccination were first jointly applied to formulate antimicrobial and water-resistant sweet potato starch films. The results showed that octenylsuccination powerfully retarded the coalescence of oil droplets in film casting process and favoured their homogeneity in the dried films. OEO incorporation dose-dependently conferred antimicrobial activity upon the films, which was further enhanced by octenylsuccination to some degree...
April 19, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29629442/assessment-of-endocrine-disruption-potential-of-essential-oils-of-culinary-herbs-and-spices-involving-glucocorticoid-androgen-and-vitamin-d-receptors
#10
Iveta Bartoňková, Zdeněk Dvořák
Essential oils (EOs) of culinary herbs and spices are consumed on a daily basis. They are multicomponent mixtures of compounds with already demonstrated biological activities. Taking into account regular dietary intake and the chemical composition of EOs, they may be considered as candidates for endocrine-disrupting entities. Therefore, we examined the effects of 31 EOs of culinary herbs and spices on transcriptional activities of glucocorticoid receptor (GR), androgen receptor (AR) and vitamin D receptor (VDR)...
April 25, 2018: Food & Function
https://www.readbyqxmd.com/read/29606967/effects-of-oregano-essential-oil-on-brain-tlr4-and-tlr2-gene-expression-and-depressive-like-behavior-in-a-rat-model
#11
Azam Amiresmaeili, Samira Roohollahi, Ali Mostafavi, Nayere Askari
The aim of the present study was to evaluate the effects of oregano essential oil (OEO) on the hippocampus and prefrontal cortex TLR 2/4 gene expression and depressive like behavior induced by chronic unpredictable stress (CUS). Sucrose preference and forced swim tests were adopted to examine the antidepressant effect. Control (CON), OEO, CUS, and CUS + OEO groups were used. The OEO and CUS + OEO groups received OEO (0.2 mL/kg, i.p.), CON and CUS received saline (0.2 mL/kg, i.p.), and the positive drug groups of CUS rats received fluoxetine (10 mg/kg) and diazepam (3 mg/kg) once daily for 14 days...
April 2018: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29577286/antimicrobial-carvacrol-in-solution-blow-spun-fish-skin-gelatin-nanofibers
#12
Fei Liu, Furkan Türker Saricaoglu, Roberto J Avena-Bustillos, David F Bridges, Gary R Takeoka, Vivian C H Wu, Bor-Sen Chiou, Delilah F Wood, Tara H McHugh, Fang Zhong
Carvacrol is a volatile monoterpenic phenol and main component of oregano essential oil that shows nonspecific antimicrobial activity against foodborne pathogenic bacteria. Fish-skin gelatin (FSG) nanofibers encapsulating carvacrol (15%, 20%, 25%, and 30%, w/w FSG) were successfully prepared via solution blow-spinning (SBS) technique using lecithin (2.475% wb) as the surfactant. FSG emulsions with lower carvacrol ratios (5% and 10%) showed higher values in particle size and surface tension as well as lower values in viscosity and modulus, which led to failure of maintaining nanofibers shape...
April 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29575822/antimicrobial-activity-of-selected-essential-oils-against-streptococcus-suis-isolated-from-pigs
#13
Fabiana C de Aguiar, Ana Lucía Solarte, Carmen Tarradas, Inmaculada Luque, Alfonso Maldonado, Ángela Galán-Relaño, Belén Huerta
The inhibitory potential by contact and vapor of basil, cinnamon, clove, peppermint, oregano, rosemary, common thyme, and red thyme essential oils (EOs) against 20 strains of Streptococcus suis was determined by the disk diffusion test. The broth microdilution method was used to determine the minimal inhibitory and minimal bactericidal concentration (MIC and MBC) of the four selected oils. Furthermore, the bactericidal power (ratio MBC/MIC) was calculated. The EOs with the major potential in the disk diffusion method were red thyme, common thyme, oregano, and cinnamon (∅ mean 16...
March 24, 2018: MicrobiologyOpen
https://www.readbyqxmd.com/read/29561804/effect-of-oregano-essential-oil-and-aqueous-oregano-infusion-application-on-microbiological-properties-of-samarella-tsamarella-a-traditional-meat-product-of-cyprus
#14
Beyza Ulusoy, Canan Hecer, Doruk Kaynarca, Şifa Berkan
Different types of dried meat products manufactured by different drying and curing methods are very common and well-known with a long history all over the world. Samarella (tsamarella) is one of these products and is famous among traditionally produced meat products in Cypriot gastronomy. The aim of this study was to investigate the effect of oregano essential oil (OEO) and aqueous oregano infusion (AOI) applications on the microbiological properties of samarella. In order to carry out this study, traditional methods were followed for experimental production of samarella...
March 21, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29537935/use-of-micronucleus-and-comet-assay-to-evaluate-evaluate-the-genotoxicity-of-oregano-essential-oil-origanum-vulgare-l-virens-in-rats-orally-exposed-for-90-days
#15
María Llana-Ruiz-Cabello, María Puerto, Sara Maisanaba, Remedios Guzmán-Guillén, Silvia Pichardo, Ana M Cameán
Essential oils from Origanum spp. exhibit antioxidant and antimicrobial activities making them suitable for use as food additives. The incorporation of oregano essential oil in active food packaging is under study; however, it has been not authorized for this purpose thus far. In order to fulfill the requirements of the European Food Safety Authority (EFSA), the aim of the present study was to determine the genotoxic potential of oregano essential oil using both the micronucleus (MN) test and comet (standard and enzyme-modified) assays in Wistar rats treated with 50, 100, or 200 mg/kg body weight administered daily for 90 days...
2018: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/29526217/combined-effects-of-oregano-essential-oil-and-salt-on-the-growth-of-escherichia-coli-in-salad-dressing
#16
Marília Gonçalves Cattelan, Yara Paula de Oliveira Nishiyama, Tânia Maria Vinturim Gonçalves, Alexandre Rodrigo Coelho
There is a broad research interest in the search for alternatives to chemical additives for use as natural food preservatives. Although many natural compounds have biological in vitro properties evidenced, in situ studies are still scarce. This study evaluated the effect of oregano essential oil (OEO) and salt (NaCl) concentrations against Escherichia coli (ATCC 8739), in salad dressing, using the response surface methodology. The experiment included a 22 central composite rotatable design (CCRD) in a total of 11 formulations of salad dressings...
August 2018: Food Microbiology
https://www.readbyqxmd.com/read/29452197/essential-oils-from-origanum-vulgare-and-salvia-officinalis-exhibit-antibacterial-and-anti-biofilm-activities-against-streptococcus-pyogenes
#17
Niluni M Wijesundara, H P Vasantha Rupasinghe
In the present study, essential oils (EOs) extracted from oregano, sage, cloves, and ginger were evaluated for the phytochemical profile, antibacterial, and anti-biofilm activities against Streptococcus pyogenes. The broth microdilution method was used to determine the minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of EOs. The minimum biofilm inhibitory concentrations (MBICs) were determined using MTT assay and fixed biofilms were observed through scan electron microscopy...
April 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29450144/anti-inflammatory-tissue-remodeling-immunomodulatory-and-anticancer-activities-of-oregano-origanum-vulgare-essential-oil-in-a-human-skin-disease-model
#18
Xuesheng Han, Tory L Parker
The use of oregano ( Origanum vulgare ) essential oil (OEO) has become popular in skin care products. However, scientific research regarding its effects on human skin cells is scarce. In this study, we investigated the biological activity of a commercially available OEO, which is high in carvacrol content, in a human skin cell disease model. OEO induced marked antiproliferative effects and significantly inhibited several inflammatory biomarkers, including monocyte chemoattractant protein 1 (MCP-1), vascular cell adhesion molecule 1 (VCAM-1), intracellular cell adhesion molecule 1 (ICAM-1), interferon gamma-induced protein 10 (IP-10), interferon-inducible T-cell alpha chemoattractant (I-TAC), and monokine induced by gamma interferon (MIG)...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29436857/effect-of-thyme-and-oregano-essential-oils-on-the-shelf-life-of-salmon-and-seaweed-burgers
#19
D Dolea, A Rizo, A Fuentes, J M Barat, I Fernández-Segovia
The effect of different essential oils on the quality and shelf life of fish and seaweed burgers during storage was evaluated. For this purpose, thyme and oregano essential oils were selected at a concentration of 0.05% (v/w). Three types of salmon and seaweed burgers were prepared: without essential oil, burgers with red thyme essential oil (0.05% (v/w)) and burgers with oregano essential oil (0.05% (v/w)), which were vacuum packaged and stored at 4 ℃ for 17 days. Physicochemical and microbiological analyses were carried out periodically throughout storage...
January 1, 2018: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/29414733/preparation-and-antimicrobial-activity-of-oregano-essential-oil-pickering-emulsion-stabilized-by-cellulose-nanocrystals
#20
Yan Zhou, Shanshan Sun, Weiya Bei, Mohamed Reda Zahi, Qipeng Yuan, Hao Liang
An effective antimicrobial system was developed by using oregano essential oil (OEO) Pickering emulsion. The Pickering emulsion was stabilized by cellulose nanocrystals (CNCs), which were from microcrystalline cellulose (MCC) by selective oxidization ammonium persulfate. Factors affecting the stability of OEO Pickering emulsions, such as oil/water ratio, CNCs concentration, ionic concentration and pH, were studied and analysed by the measurement of the droplet sizes and Zeta potential. The results showed that the emulsions had good stability at higher CNCs concentration and pH values, or at lower oil/water ratio and salt concentration...
June 2018: International Journal of Biological Macromolecules
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