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oregano oil

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https://www.readbyqxmd.com/read/28278656/repellency-of-the-origanum-onites-l-essential-oil-and-constituents-to-the-lone-star-tick-and-yellow-fever-mosquito
#1
John F Carroll, Betul Demirci, Matthew Kramer, Ulrich R Bernier, Natasha M Agramonte, K Husnu Can Baser, Nurhayat Tabanca
The oregano, Origanum onites L., essential oil (EO) was tested in laboratory behavioural bioassays for repellent activity against Amblyomma americanum (L.) and Aedes aegypti (L.). The O. onites EO was characterised using GC-FID and GC-MS. Carvacrol (75.70%), linalool (9.0%), p-cymene (4.33%) and thymol (1.9%) were the most abundant compounds. At a concentration of 0.413 mg oil/cm(2) of filter paper, O. onites EO repelled 100% of the ticks tested and at 0.103 mg oil/cm(2) of filter paper, 66.7% of the ticks were repelled...
February 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28272922/all-natural-and-clean-label-preservatives-and-antimicrobial-agents-used-during-poultry-processing-and-packaging
#2
Ar'quette Grant, Salina Parveen
The poultry industry is faced with compounding pressures of maintaining product safety and wholesomeness while keeping up with consumer trends of all-natural foods and label accuracy. Consumers are increasingly demanding that their foods be minimally processed and contain compounds that are easily read and recognized, i.e., products must be clean labeled. The purpose of this review is to briefly describe several natural antimicrobial agents that can be incorporated into poultry processing. These compounds and their essential oils were included in this mini-review because they are generally recognized as safe by the U...
March 8, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28224651/supplementing-oregano-essential-oil-to-boar-diet-with-strengthened-fish-oil-effects-on-semen-antioxidant-status-and-semen-quality-parameters
#3
Q Liu, R J Duan, Y F Zhou, H K Wei, J Peng, J L Li
Previous research has shown benefits of dietary fish oil supplementation on semen quality of boars. However, little is known about how antioxidant protects lipid peroxidation on spermatozoa from n-3 polyunsaturated fatty acid (PUFA) addition. This study evaluated the effect of oregano essential oil (OEO) supplementation on semen antioxidant status and semen quality in boars fed a diet enriched with fish oil. Thirty-four mature boars of proven fertility, received daily 2.5 kg basal diet top-dressed with 45 g soybean oil and 15 g fish oil to meet the n-3 PUFA requirement of spermatozoa, randomly allocated to one of four groups supplemented with 100 mg α-tocopheryl acetate kg(-1) (control), or 250 or 500 or 750 mg OEO kg(-1) for 16 weeks...
February 22, 2017: Andrologia
https://www.readbyqxmd.com/read/28216606/calamintha-nepeta-l-savi-and-its-main-essential-oil-constituent-pulegone-biological-activities-and-chemistry
#4
Mijat Božović, Rino Ragno
Medicinal plants play an important role in the treatment of a wide range of diseases, even if their chemical constituents are not always completely recognized. Observations on their use and efficacy significantly contribute to the disclosure of their therapeutic properties. Calamintha nepeta (L.) Savi is an aromatic herb with a mint-oregano flavor, used in the Mediterranean areas as a traditional medicine. It has an extensive range of biological activities, including antimicrobial, antioxidant and anti-inflammatory, as well as anti-ulcer and insecticidal properties...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28071000/chemical-composition-and-antioxidant-activities-of-essential-oils-from-different-parts-of-the-oregano
#5
Fei Han, Guang-Qiang Ma, Ming Yang, Li Yan, Wei Xiong, Ji-Cheng Shu, Zhi-Dong Zhao, Han-Lin Xu
This research was undertaken in order to characterize the chemical compositions and evaluate the antioxidant activities of essential oils obtained from different parts of the Origanum vulgare L. It is a medicinal plant used in traditional Chinese medicine for the treatment of heat stroke, fever, vomiting, acute gastroenteritis, and respiratory disorders. The chemical compositions of the three essential oils from different parts of the oregano (leaves-flowers, stems, and roots) were identified by gas chromatography-mass spectrometry (GC-MS)...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28067421/dietary-integration-with-oregano-origanum-vulgare-l-essential-oil-improves-growth-rate-and-oxidative-status-in-outdoor-reared-but-not-indoor-reared-pigs
#6
C Forte, D Ranucci, D Beghelli, R Branciari, G Acuti, L Todini, C Cavallucci, M Trabalza-Marinucci
The effects of a diet supplemented with oregano essential oil on performance, oxidative status, pork quality traits and sensorial properties were evaluated. In two studies, 72 pigs in indoor or outdoor conditions were assigned to either a control diet or an identical diet supplemented with 0.2% oregano essential oil. Pigs reared outdoor showed lower live weight, average daily gain and average gain:feed ratio compared to indoor pigs. The oregano supplementation improved the growth performance of the outdoor- but not the indoor-reared animals...
January 9, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28065759/a-subchronic-90-day-oral-toxicity-study-of-origanum-vulgare-essential-oil-in-rats
#7
M Llana-Ruiz-Cabello, S Maisanaba, M Puerto, S Pichardo, A Jos, R Moyano, A M Cameán
Oregano essential oil (Origanum vulgare L. virens) (OEO) is being used in the food industry due to its useful properties to develop new active packaging systems. In this concern, the safety assessment of this natural extract is of great interest before being commercialized. The European Food Safety Authority requests different in vivo assays to ensure the safety of food contact materials. One of these studies is a 90 days repeated-dose oral assay in rodents. In the present work, 40 male and 40 female Wistar rats were orally exposed to 50, 100 and 200 mg/kg body weight (b...
March 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28032105/evaluation-of-some-plant-essential-oils-against-the-brown-banded-cockroach-supella-longipalpa-blattaria-ectobiidae-a-mechanical-vector-of-human-pathogens
#8
Mona Sharififard, Farhad Safdari, Amir Siahpoush, Hamid Kassiri
BACKGROUND: Essential oils, as secondary plant compounds, present a safer alternative to conventional insecticides in insect control programs. So five essential oils including eucalyptus, mint, yarrow, oregano and rosemary oils were evaluated against the brown-banded cockroach Supella longipalpa. METHODS: Evaluation was done against the 3(rd) and 4(th) instar nymphs using three bioassay methods; continuous contact toxicity, fumigant toxicity and repellent activity...
December 2016: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/28024521/a-novel-interpretation-of-the-fractional-inhibitory-concentration-index-the-case-origanum-vulgare-l-and-leptospermum-scoparium-j-r-et-g-forst-essential-oils-against-staphylococcus-aureus-strains
#9
Filippo Fratini, Simone Mancini, Barbara Turchi, Elisabetta Friscia, Luisa Pistelli, Giulia Giusti, Domenico Cerri
Origanum vulgare (oregano) and Leptospermum scoparium (manuka) were traditionally employed as natural remedies for infected wounds and skin injuries where Staphylococcus aureus is mainly involved. The first aim of this study was to investigate oregano and manuka essential oils (EOs) chemical compositions and evaluate their antibacterial activity (MIC, Minimum Inhibitory Concentration) against fourteen S. aureus wild strains. The second aim was to evaluate the antibacterial activities of oregano and manuka EOs mixed in different combination (FIC, Fractional Inhibitory Concentration) with an improved chequerboard technique...
January 2017: Microbiological Research
https://www.readbyqxmd.com/read/27994215/antimicrobial-activity-of-basil-oregano-and-thyme-essential-oils
#10
REVIEW
Hercules Sakkas, Chrissanthy Papadopoulou
For centuries plants have been used for a wide variety of purposes, from treating infectious diseases to food preservation and perfume production. Presently, the increasing resistance of microorganisms to currently used antimicrobials in combination with the appearance of emerging diseases requires urgently the development of new, more effective drugs. Plants, due to the large biological and structural diversity of their components, constitute a unique and renewable source for the discovery of new antibacterial, antifungal and antiparasitic treatments...
December 20, 2016: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27991969/effects-of-irrigation-intervals-and-organic-manure-on-morphological-traits-essential-oil-content-and-yield-of-oregano-origanum-vulgare-l
#11
Farzad Gerami, Parviz R Moghaddam, Reza Ghorbani, Abbas Hassani
In order to evaluate the effect of irrigation intervals and cattle manure levels on morphological traits, essential oil content and yield of oregano, an experiment was conducted at the experimental Farm of the Faculty of Agriculture, Urmia University, Iran. The experimental design was split-plots, arranged in randomized complete blocks with three replications. Main plots including irrigation intervals (1, 2 and 3 weeks) and four levels of cattle manure at 0, 10, 20 and 30 t ha-1 were allocated to sub plots...
October 2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27979111/preparation-and-characterization-of-essential-oil-loaded-starch-nanoparticles-formed-by-short-glucan-chains
#12
Chao Qiu, Ranran Chang, Jie Yang, Shengju Ge, Liu Xiong, Mei Zhao, Man Li, Qingjie Sun
Essential oils (EOs), including menthone, oregano, cinnamon, lavender, and citral, are natural products that have antimicrobial and antioxidant activities. However, extremely low water solubility, and easy degradation by heat, restrict their application. The aim of this work was to evaluate the enhancement in antioxidative and antimicrobial activities of EOs encapsulated in starch nanoparticles (SNPs) prepared by short glucan chains. For the first time, we have successfully fabricated menthone-loaded SNPs (SNPs-M) at different complexation temperatures (30, 60, and 90°C) by an in situ nanoprecipitation method...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27976178/essential-oils-from-caraway-oregano-and-thyme-as-phytogenic-substances-to-enhance-gut-health-in-a-porcine-epithelial-cell-culture-model
#13
E Mayer, A Springler, J Stelzer, B Novak, G Schatzmayr
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27937075/evaluation-of-different-mediterranean-essential-oils-as-prophylactic-agents-in-anisakidosis
#14
Magdalena Gómez-Mateos Pérez, Concepción Navarro Moll, Gema Merino Espinosa, Adela Valero López
CONTEXT: Anisakis Dujardin 1845 (Anisakidae) nematodes can cause gastrointestinal and allergic diseases when humans eat raw or undercooked seafood containing larvae. There is currently no drug available in the market against this parasitic disease, and the study of plant-derived molecules could be useful in the discovery of effective compounds. OBJECTIVE: This research assesses the biocidal activity of a range of essential oils (EOs) from some Mediterranean plants against larvae found in the musculature of fresh fish...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27916788/effects-of-dietary-oregano-essential-oil-and-vitamin-e-supplementation-on-meat-quality-stress-response-and-intestinal-morphology-in-pigs-following-transport-stress
#15
Yi Zou, Xiao Ming Hu, Ting Zhang, Hong Kui Wei, Yuan Fei Zhou, Zhong Xin Zhou, Jian Peng
This study investigates the effects of dietary oregano essential oil (OEO) and vitamin E (Vit E) supplementation on meat quality, stress response and intestinal morphology in pigs following transport stress. A total of 288 finishing pigs were randomly assigned to three groups: a basal diet or a basal diet supplemented either with 200 mg/kg Vit E or 25 mg/kg OEO. After a 28-day feeding trial, total of 132 finishing pigs according diet and transport stress were assigned to one of four treatment groups: 1) control treatment without transport stress (Control group), 2) control treatment with 5-hr transport stress (Negative group), 3) Vit E treatment with 5-hr transport stress and 4) OEO treatment with 5-hr transport stress...
February 14, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/27915173/effect-of-prolonged-water-stress-on-essential-oil-content-compositions-and-gene-expression-patterns-of-mono-and-sesquiterpene-synthesis-in-two-oregano-origanum-vulgare-l-subspecies
#16
Mohammad Reza Morshedloo, Lyle E Craker, Alireza Salami, Vahideh Nazeri, Hyunkyu Sang, Filippo Maggi
Origanum vulgare L., recognized throughout the world as a popular medicinal and flavoring herb, contains a wide array of medicinally active components, including phenolic glucosides, flavonoids, tannins, sterols and high amounts of terpenoids. Especially the latter are often extracted by hydrodistillation resulting in the so-called essential oil that is rich in monoterpenes (e.g. carvacrol, thymol, linalyl acetate) and/or sesquiterpenes (e.g. (E)-β-caryophyllene, germacrene D, bicyclogermacrene, β-caryophyllene oxide)...
November 28, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27783121/raman-spectroscopy-electronic-microscopy-and-spme-gc-ms-to-elucidate-the-mode-of-action-of-a-new-antimicrobial-food-packaging-material
#17
Isabel Clemente, Margarita Aznar, Jesús Salafranca, Cristina Nerín
One critical challenge when developing a new antimicrobial packaging material is to demonstrate the mode of action of the antimicrobials incorporated into the packaging. For this task, several analytical techniques as well as microbiology are required. In this work, the antimicrobial properties of benzyl isothiocyanate, allyl isothiocyanate and essential oils of cinnamon and oregano against several moulds and bacteria have been evaluated. Benzyl isothiocyanate showed the highest antimicrobial activity and it was selected for developing the new active packaging material...
October 25, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27685788/enhancement-of-orofacial-antinociceptive-effect-of-carvacrol-a-monoterpene-present-in-oregano-and-thyme-oils-by-%C3%AE-cyclodextrin-inclusion-complex-in-mice
#18
Juliane C Silva, Jackson R G S Almeida, Jullyana S S Quintans, Rajiv Gandhi Gopalsamy, Saravanan Shanmugam, Mairim Russo Serafini, Maria R C Oliveira, Bruno A F Silva, Anita O B P B Martins, Fyama F Castro, Irwin R A Menezes, Henrique D M Coutinho, Rita C M Oliveira, Parimelazhagan Thangaraj, Adriano A S Araújo, Lucindo J Quintans-Júnior
Orofacial pain is associated with diagnosis of chronic pain of head, face, mouth, neck and all the intraoral structures. Carvacrol, a naturally occurring isoprenoid with diverse class of biological activities including anti-inflammatory, analgesic, antitumor and antioxidant properties. Now, the antinociceptive effect was studied in mice pretreatment with carvacrol (CARV) and β-cyclodextrin complex containing carvacrol (CARV-βCD) in formalin-, capsaicin-, and glutamate- induced orofacial nociception. Mice were pretreated with vehicle (0...
December 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27650960/in-vitro-and-in-vivo-efficacy-of-carvacrol-against-echinococcus-granulosus
#19
Julia Fabbri, Marina A Maggiore, Patricia E Pensel, Guillermo M Denegri, Liesel B Gende, María C Elissondo
Currently, benzimidazoles are used as chemotherapeutic agents and as a complement to surgery and PAIR in the treatment of cystic echinococcosis (CE). They are generally applied at high doses causing side effects and, 50% of cases do not respond favorably to such chemotherapy. The use of essential oils obtained by distillation from aromatic plants would be an effective alternative or complementary to the synthetic compounds, because would not bring the appearance of side effects. Carvacrol and his isomer thymol are the main phenolic components from essential oils of Origanum vulgare (oregano) and Thymus vulgaris (thyme)...
December 2016: Acta Tropica
https://www.readbyqxmd.com/read/27577090/influence-of-oregano-essential-oil-on-traditional-argentinean-cheese-elaboration-effect-on-lactic-starter-cultures
#20
Guillermo E Marcial, Carla L Gerez, Martha Nuñez de Kairuz, Victoria Coll Araoz, Carola Schuff, Graciela Font de Valdez
The aim of this work is to study the oregano essential oil (OEO) composition from Northwestern Argentinean regions and to evaluate its effect on the lactic starter cultures. The oregano used, Origanum vulgare var hirtum, was obtained from Andalgalá, Catamarca. The essential oil presented high amounts of α-terpinene (10%), γ-terpinene (15.1%), terpinen-4-ol (15.5%) and thymol (13.0%) as the main components. No negative effect on growth or metabolic activity of lactic acid bacteria Streptococcus thermophilus CRL 728 and CRL 813, Lactobacillus delbrueckii subsp...
July 2016: Revista Argentina de Microbiología
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