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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/28221981/dry-transfer-inoculation-of-low-moisture-spices-containing-antimicrobial-compounds
#4
Ian M Hildebrandt, Chuxuan Hu, Elizabeth M Grasso-Kelley, Peiran Ye, Nathan M Anderson, Susanne E Keller
Inoculation of a food product for use in subsequent validation studies typically makes use of a high concentration cocktail of microorganisms suspended in aqueous media. However, this inoculation method may prove difficult particularly when the food product is a low-moisture food containing antimicrobial compounds, such as some dried spices. In this study, a dry transfer method for inoculation of clove powder, oregano leaves, ginger powder, and ground black pepper with a five-serovar cocktail of Salmonella was developed and compared with a traditional aqueous inoculation procedure...
February 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28216606/calamintha-nepeta-l-savi-and-its-main-essential-oil-constituent-pulegone-biological-activities-and-chemistry
#5
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/28115765/influence-of-vacuum-ageing-duration-of-whole-beef-on-retail-shelf-life-of-steaks-packaged-with-oregano-origanum-vulgare-l-active-film-under-high-o2
#6
Djamel Djenane, José Antonio Beltrán, Javier Camo, Pedro Roncalés
Beef Longissimus lumborum (LL) was no aged (LL0), aged for 7 days (LL7) and 14 days (LL14) under vacuum at 1 ± 1 °C. The obtained beefsteaks were packaged in high oxygen (Hi-O2) with active packaging (AP) during 13-21 days at 1 ± 1 °C. Redness (CIE a* values), metmyoglobin percentage (MetMb%), total flora (PCA), thiobarbituric acid-reactive substances (TBA-RS), instrumental tenderness (Warner-Bratzler shear force: WBSF), and sensory analyses were performed. The various variables differed amongst the ageing times and packaging systems (AP vs...
December 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28071000/chemical-composition-and-antioxidant-activities-of-essential-oils-from-different-parts-of-the-oregano
#7
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
#8
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
#9
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/28039793/lippia-graveolens-photochemopreventive-effect-against-uvb-radiation-induced-skin-carcinogenesis
#10
A M García-Bores, A M Espinosa-González, A Reyna-Campos, S Cruz-Toscano, J C Benítez-Flores, C T Hernández-Delgado, S Flores-Maya, M Urzúa-Meza, I Peñalosa-Castro, C L Céspedes-Acuña, J G Avila-Acevedo
Lippia graveolens HBK (Mexican oregano) is a species that is regularly used as a condiment in Mexican cuisine. In traditional medicine, it is used for the treatment of respiratory and digestive illnesses, headaches, rheumatism and inflammation-related disorders. The main chemical components reported in this species include the following: terpenoids, iridoids and flavonoids. The aim of this study was to determine the potential photochemopreventive effect of the methanolic extract of Lippia graveolens (MELG) against ultraviolet B (UVB)-induced skin cancer in SKH-1 mice...
December 18, 2016: Journal of Photochemistry and Photobiology. B, Biology
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
#11
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
#12
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/28012986/increased-secretion-of-exopolysaccharide-and-virulence-potential-of-a-mucoid-variant-of-salmonella-enterica-serovar-montevideo-under-environmental-stress
#13
J Jean-Gilles Beaubrun, Ben D Tall, M-L Flamer, I Patel, G Gopinath, Winny Auguste, Catherine Jean, Melvin George, Carmen Tartera, L Ewing, D E Hanes
During an investigation to increase the recovery of Salmonella enterica from Oregano, an increased expression of exopolysaccharide was induced in Salmonella serovar Montevideo. The atypical mucoid (SAL242S) and the non-mucoid (SAL242) strains of Montevideo were compared and characterized using various methods. Serotyping analysis demonstrated that both strains are the same serovar Montevideo. Electron microscopy (EM) of cultured SAL242S cells revealed the production of a prominent EPS-like structure enveloping aggregates of cells that are composed of cellulose...
December 21, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27994215/antimicrobial-activity-of-basil-oregano-and-thyme-essential-oils
#14
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
#15
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
#16
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/27977183/co2-plant-extracts-reduce-cholesterol-oxidation-in-fish-patties-during-cooking-and-storage
#17
Marko Tarvainen, Karl-Werner Quirin, Heikki Kallio, Baoru Yang
Cholesterol oxidation products (COPs) in foods may pose risks for human health. Suitable antioxidants can reduce the formation of COPs in industrial products. Consumer awareness of food additives has brought a need for more natural alternatives. This is the first study on the effects of supercritical CO2 extracts of rosemary, oregano, and an antimicrobial blend of seven herbs, tested at two levels (1 and 3 g/kg fish), against cholesterol oxidation in patties made of a widely consumed fish species, Atlantic salmon (Salmo salar), during baking and storage...
December 28, 2016: Journal of Agricultural and 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
#18
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
#19
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
#20
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
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