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https://www.readbyqxmd.com/read/28071592/development-and-evaluation-of-zinc-phthalocyanine-nanoemulsions-for-use-in-photodynamic-therapy-for-leishmania-spp
#1
Luciana Betzler de Oliveira de Siqueira, Verônica da Silva Cardoso, Igor Almeida Rodrigues, Ana Lúcia Vazquez-Villa, Elisabete Pereira Dos Santos, Bruno da Costa Leal Ribeiro Guimarães, Cristal Dos Santos Cerqueira Coutinho, Alane Beatriz Vermelho, Eduardo Ricci Junior
Photodynamic therapy (PDT) combines light with photosensitizers (PS) for production of reactive oxygen species (ROS) that can kill infectious microorganisms such as bacteria, fungi and protozoa. The application of nanotechnology has enabled the advancement of PDT because many PS are insoluble in water, necessitating a nanocarrier as a physiologically acceptable carrier. Nanoemulsions are efficient nanocarriers for solubilizing liposoluble drugs, like the PS, in water. Cutaneous (CL) and mucocutaneous leishmaniasis (ML) are caused by different species of the genus Leishmania, transmitted to humans by sandfly bites...
February 10, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28069189/ultrasound-treated-potato-peel-and-sweet-lime-pomace-based-biopolymer-film-development
#2
Purba Prasad Borah, Pulak Das, Laxmikant S Badwaik
Treatment and management of food processing waste is a major challenge for food industry. Potato processing industry generates tremendous amount of peel and consider it as zero valued waste. Again, pomace generated after juice extraction from sweet lime pulp is considered as waste and not properly utilized. Whereas these waste could be utilized for the development of biodegradable packaging film to overcome environmental issues. Composite films were prepared with varying proportion of potato peel powder (PP) and sweet lime pomace (SLP) in the ratio of 0:1(A), 0...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28061030/regeneration-of-%C3%AE-carotene-from-radical-cation-by-eugenol-isoeugenol-and-clove-oil-in-the-marcus-theory-inverted-region-for-electron-transfer
#3
Hui-Ting Chang, Hong Cheng, Rui-Min Han, Peng Wang, Jian-Ping Zhang, Leif H Skibsted
Rate of regeneration of β-carotene by eugenol from the β-carotene radical cation, an initial bleaching product of β-carotene, was found by laser flash photolysis and transient absorption spectroscopy to be close to the diffusion limit in chloroform/methanol (9:1, v:v) with a second-order rate constant (k2) of 4.3×109 Lmol-1s-1. at 23 °C. Isoeugenol, more reducing with a standard reduction potential 100 mV lower than eugenol, was slower with k2 = 7.2 ×108 Lmol-1s-1. Regeneration of β-carotene following photobleaching was found 50% more efficient by eugenol, indicating that for the more reducing isoeugenol, the driving force exceeds the reorganization energy for electron transfer significantly in the Marcus theory inverted region...
January 6, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28056572/biochemical-characterization-anti-inflammatory-properties-and-ulcerogenic-traits-of-some-cold-pressed-oils-in-experimental-animals
#4
Faten M Ibrahim, Hanan Naeim Attia, Yousreya Aly Aly Maklad, Kawkab A Ahmed, Mohamed F Ramadan
CONTEXT: Cold-pressed oils (CPO) are commercially available in the market and characterized by their health-promoting properties. OBJECTIVE: Clove oil (CLO), coriander seed oil (COO) and black cumin oil (BCO) were evaluated for their bioactive lipids. Pharmacological screening was performed to evaluate acute toxicity, anti-inflammatory and ulcerogenic effects as well as histopathological changes in tissues of albino rats fed with CPO. MATERIALS AND METHODS: Fatty acids, tocols and total phenolics were analyzed...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28018002/encapsulation-of-eugenyl-acetate-in-phbv-using-seds-technique-and-in-vitro-release-evaluation
#5
Raquel A Loss, Gabriela N Pereira, Daiane L Boschetto, Gean S P Aguiar, Juliana R Machado, Lorenzo M P C Chaves, Maria J A Silva, Débora Oliveira, J Vladimir Oliveira
Eugenyl acetate obtained via enzymatic esterification using Lipozyme TL IM enzyme was encapsulated in biopolymer poly(3-hydroxybutyrate-co-hydroxyvalerate) (PHBV) through solution-enhanced dispersion by supercritical fluids (SEDS). Produced particles were characterized by SEM and confocal microscopy techniques and in addition in vitro release assays were performed in isopropanol and ethyl acetate. Experimental micronization conditions comprised 8 and 10 MPa, 308 and 313 K and eugenyl acetate concentration ranging from 5 to 20 mg mL(-1), keeping PHBV concentration constant (20 mg mL(-1) in dichloromethane)...
October 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28013459/molecular-and-structural-changes-induced-by-essential-oil-treatments-in-vicia-faba-roots-detected-by-ftir-and-ftnir-spectroscopy
#6
Mauro Mecozzi, Elena Sturchio, Priscilla Boccia, Miriam Zanellato, Claudia Meconi, Francesco Peleggi
Essential oils have recognized antimicrobial and antifungal properties which allow their utilization in agriculture like an alternative to pesticides, but their utilization requires the knowledge of all the potential structural changes and damages produced by the interaction with the vegetal organisms. In this paper, we investigated the effects of two essential oils, the tea tree oil (TTO) and the mixture of clove and rosemary oils (C + R), on the molecular structure of Vicia faba roots by Fourier transform infrared (FTIR) and Fourier near infrared transform (FTNIR) spectroscopy...
December 24, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28006901/encapsulation-of-antibiotic-levofloxacin-in-biocompatible-microemulsion-formulation-insights-from-microstructure-analysis
#7
Muhammad Faizan Nazar, Muhammad Atif Saleem, Sana Nawaz Bajwa, Basit Yameen, Muhammad Ashfaq, Muhammad Nadeem Zafar, Muhammad Zubair
Microemulsions (μEs) are unique systems that offer exciting perspectives in biophysical research for mimicing biomembranes at the molecular level. In the present study, biocompatible μE formulation of a new oil-in-water (o/w) system comprising clove oil/Tween 20/2-propanol/water was accomplished for encapsulating an antibiotic, levofloxacin (LVF). The pseudoternary phase diagram was delineated at a constant cosurfactant/surfactant (2:1) ratio to meet the economic feasibility. The gradual changes occurring in the microstructure of the as-formulated four-component μEs were explored via multiple complementary characterization techniques...
January 19, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/27965057/visible-light-enhances-the-antimicrobial-effect-of-some-essential-oils
#8
María Soledad Marqués-Calvo, Francesc Codony, Gemma Agustí, Carlos Lahera
The photodisinfection is a topical, broad spectrum antimicrobial technology, targeting bacteria, virus, fungi, and protozoa effective for single cells as for biofilms. Natural molecules have been studied less than synthetic agents in the process but they are currently receiving great interest. Therefore, the aim of this study is to evaluate for the first time if non-coherent blue and red light enhances the antimicrobial activity of some essential oils when standard strains for antibiotic or fungicide tests are enlightened in vitro...
December 10, 2016: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/27876218/antifungal-activities-of-selected-essential-oils-against-fusarium-oxysporum-f-sp-lycopersici-1322-with-emphasis-on-syzygium-aromaticum-essential-oil
#9
Abhishek Sharma, Sasireka Rajendran, Ankit Srivastava, Satyawati Sharma, Bishwajit Kundu
The antifungal effects of four essential oils viz., clove (Syzygium aromaticum), lemongrass (Cymbopogon citratus), mint (Mentha × piperita) and eucalyptus (Eucalyptus globulus) were evaluated against wilt causing fungus, Fusarium oxysporum f. sp. lycopersici 1322. The inhibitory effect of oils showed dose-dependent activity on the tested fungus. Most active being the clove oil, exhibiting complete inhibition of mycelial growth and spore germination at 125 ppm with IC50 value of 18.2 and 0.3 ppm, respectively...
November 18, 2016: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/27876081/in-vitro-activity-of-ten-essential-oils-against-sarcoptes-scabiei
#10
Fang Fang, Kerdalidec Candy, Elise Melloul, Charlotte Bernigaud, Ling Chai, Céline Darmon, Rémy Durand, Françoise Botterel, Olivier Chosidow, Arezki Izri, Weiyi Huang, Jacques Guillot
BACKGROUND: The development of alternative approaches in ectoparasite management is currently required. Essential oils have been demonstrated to exhibit fumigant and topical toxicity to a number of arthropods. The aim of the present study was to assess the potential efficacy of ten essential oils against Sarcoptes scabiei. METHODS: The major chemical components of the oils were identified by GC-MS analysis. Contact and fumigation bioassays were performed on Sarcoptes mites collected from experimentally infected pigs...
November 22, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27869756/a-review-of-temperature-ph-and-other-factors-that-influence-the-survival-of-salmonella-in-mayonnaise-and-other-raw-egg-products
#11
REVIEW
Thilini Piushani Keerthirathne, Kirstin Ross, Howard Fallowfield, Harriet Whiley
Salmonellosis is one of the main causes of foodborne illnesses worldwide, with outbreaks predominately linked to contamination of eggs and raw egg products, such as mayonnaise. This review explores previous studies that have investigated Salmonella control mechanisms utilized in the production of raw egg mayonnaise and other food products. Apart from the use of pasteurized eggs, the main control mechanism identified is the pH of the raw egg products, which plays an important role in the consistency and stability while affecting the survival of Salmonella spp...
November 18, 2016: Pathogens
https://www.readbyqxmd.com/read/27867112/hydrogel-thickened-nanoemulsions-based-on-essential-oils-for-topical-delivery-of-psoralen-permeation-and-stability-studies
#12
Thaís Nogueira Barradas, Juliana Perdiz Senna, Stephani Araujo Cardoso, Sara Nicoli, Cristina Padula, Patrizia Santi, Francesca Rossi, K Gyselle de Holanda E Silva, Claudia R Elias Mansur
Nanoemulsions (NE) have attracted much attention due to their as dermal delivery systems for lipophilic drugs such as psoralens. However, NE feature low viscosity which might be unsuitable for topical application. In this work, we produced hydrogel-thickened nanoemulsions (HTN) using chitosan as thickening polymer to overcome the low viscosity attributed to NE. The aim of this study is to develop and characterize oil-in-water (o/w) HTN based on sweet fennel and clove essential oil to transdermal delivery of 8-methoxsalen (8-MOP)...
November 17, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27853710/thymus-vulgaris-red-thyme-and-caryophyllus-aromaticus-clove-essential-oils-to-control-spoilage-microorganisms-in-pork-under-modified-atmosphere
#13
Serena D'Amato, Giovanni Mazzarrino, Chiara Rossi, Annalisa Serio, Clemencia Chaves López, Gaetano Vitale Celano, Antonello Paparella
In recent years, it has been confirmed that essential oils (EOs) exert antimicrobial activity as they are able to inhibit cell growth and inactivate microbial cells. The application of biopreservation strategies by means of EOs opens up interesting perspectives in the food industry, including meat production. The paper aims to evaluate the effects of Thymus vulgaris (red thyme) and Caryophyllus aromaticus (cloves) EOs on the development of the spoilage population of fresh pork packaged under modified atmosphere (MAP)...
June 3, 2016: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/27808174/essential-oils-and-eugenols-inhibit-biofilm-formation-and-the-virulence-of-escherichia-coli-o157-h7
#14
Yong-Guy Kim, Jin-Hyung Lee, Giyeon Gwon, Soon-Il Kim, Jae Gyu Park, Jintae Lee
Enterohemorrhagic Escherichia coli O157:H7 (EHEC) has caused foodborne outbreaks worldwide and the bacterium forms antimicrobial-tolerant biofilms. We investigated the abilities of various plant essential oils and their components to inhibit biofilm formation by EHEC. Bay, clove, pimento berry oils and their major common constituent eugenol at 0.005% (v/v) were found to markedly inhibit EHEC biofilm formation without affecting planktonic cell growth. In addition, three other eugenol derivatives isoeugenol, 2-methoxy-4-propylphenol, and 4-ethylguaiacol had antibiofilm activity, indicating that the C-1 hydroxyl unit, the C-2 methoxy unit, and C-4 alkyl or alkane chain on the benzene ring of eugenol play important roles in antibiofilm activity...
November 3, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27802299/protective-effects-of-essential-oils-as-natural-antioxidants-against-hepatotoxicity-induced-by-cyclophosphamide-in-mice
#15
Salah A Sheweita, Lobna S El-Hosseiny, Munther A Nashashibi
Clinical application of cyclophosphamide (CP) as an anticancer drug is often limited due to its toxicity. CP is metabolized mainly in the liver by cytochrome P450 system into acrolein which is the proximate toxic metabolite. Many different natural antioxidants were found to alleviate the toxic effects of various toxic agents via different mechanisms. Therefore, the present study aimed at investigating the role of essential oils extracted from fennel, cumin and clove as natural antioxidants in the alleviation of hepatotoxicity induced by CP through assessment of hepatotoxicity biomarkers (AST, ALT, ALP), histopathology of liver tissues as well as other biochemical parameters involved in the metabolism of CP...
2016: PloS One
https://www.readbyqxmd.com/read/27796007/anesthetic-effect-and-physiological-response-in-olive-flounder-paralichthys-olivaceus-to-clove-oil-in-a-simulated-transport-experiment
#16
Hyun Woo Gil, Min Gyun Ko, Tae Ho Lee, In-Seok Park, Dong Soo Kim
The optimum concentrations of clove oil as an anesthetic for olive flounder (Paralichthys olivaceus) and the stress response of the fish to clove oil anesthesia were determined over a range of water temperatures, and investigated in a simulated transport experiment using analysis of various water and physiological parameters. While the time for induction of anesthesia decreased significantly as both the concentration of clove oil and water temperature increased, the recovery time increased significantly (P<0...
September 2016: Balsaeng'gwa Saengsig
https://www.readbyqxmd.com/read/27743330/biodiesel-from-plant-seed-oils-as-an-alternate-fuel-for-compression-ignition-engines-a-review
#17
C Vijayakumar, M Ramesh, A Murugesan, N Panneerselvam, D Subramaniam, M Bharathiraja
The modern scenario reveals that the world is facing energy crisis due to the dwindling sources of fossil fuels. Environment protection agencies are more concerned about the atmospheric pollution due to the burning of fossil fuels. Alternative fuel research is getting augmented because of the above reasons. Plant seed oils (vegetable oils) are cleaner, sustainable, and renewable. So, it can be the most suitable alternative fuel for compression ignition (CI) engines. This paper reviews the availability of different types of plant seed oils, several methods for production of biodiesel from vegetable oils, and its properties...
October 15, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27690424/elucidation-of-thermally-induced-changes-in-key-odorants-of-white-mustard-seeds-sinapis-alba-l-and-rapeseeds-brassica-napus-l-using-molecular-sensory-science
#18
Eva Ortner, Michael Granvogl, Peter Schieberle
Heat-processing of Brassica seeds led to the formation of a characteristic pleasant popcorn-like and coffee-like aroma impression compared to the mainly pea-like aroma of the corresponding raw seeds. To analyze this phenomenon on a molecular basis, raw and roasted white mustard seeds and rapeseeds were analyzed using the sensomics approach. Application of comparative aroma extract dilution analysis (cAEDA) and identification experiments to raw and roasted (140 °C, 30 min) mustard seeds revealed 36 odorants (all identified for the first time) and 47 odorants (41 newly identified), respectively...
November 2, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27685164/validation-of-photographs-usage-to-evaluate-meat-visual-acceptability-of-young-bulls-finished-in-feedlot-fed-with-or-without-essential-oils
#19
Rodrigo Augusto Cortez Passetti, Juliana Akamine Torrecilhas, Mariana Garcia Ornaghi, Camila Mottin, Carlos Antonio Lopes de Oliveira, Ana Guerrero, Maria Del Mar Campo, Carlos Sañudo, Ivanor Nunes do Prado
Forty ½ Brown Swiss×½ Nellore crossbred bulls were distributed into three experimental groups: CON - diet without addition of essential oils; CLO - diet with average 5,000mg/animal/day of clove essential oils and CIN - diet with average 5,000mg/animal/day of cinnamon essential oils to evaluate three methodologies of visual acceptability: with steaks directly in Trays and Sequential and Random photos. Seventeen consumers evaluated visual appearance of meat using a 9-point structured hedonic scale. CON group presented higher shelf-life than essential oils groups...
January 2017: Meat Science
https://www.readbyqxmd.com/read/27683808/the-efficacy-of-clove-oil-as-an-anaesthetic-and-in-euthanasia-procedure-for-small-sized-tropical-fishes
#20
I M Fernandes, Y F Bastos, D S Barreto, L S Lourenço, J M Penha
Clove oil is used as a fish anesthetic because it is a natural and inexpensive product with low toxicity risks. The goal of the present study was to determine the appropriate concentration of clove oil for small-sized tropical fish to be used in mark-recapture studies or when individuals are to be sacrificed. We applied three different clove oil concentrations (D1=0.05 mL, D2=0.10 mL and D3=0.20 mL per 500 mL of water) on three small-sized fish species. We found a negative relationship between induction time and treatment for two species (Hyphessobrycon sp...
September 26, 2016: Brazilian Journal of Biology, Revista Brasleira de Biologia
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