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https://www.readbyqxmd.com/read/29038058/antimicrobial-and-synergistic-activity-of-essential-oils-of-aloysia-triphylla-and-lippia-alba-against-aeromonas-spp
#1
Renilde Cordeiro de Souza, Mateus Matiuzzi da Costa, Bernardo Baldisserotto, Berta Maria Heinzmann, Denise Schmidt, Braulio Otomar Caron, Carlos Eduardo Copatti
The objective of this study was to identify and quantify the chemical constituents, as well as the antimicrobial, antibiofilm and synergistic activity with florfenicol of essential oils of Aloysia triphylla (EOAT) and Lippia alba (EOLA) against Aeromonas spp. The antimicrobial activity of EOAT and EOLA was verified by the minimum bactericidal concentration (MBC) and the action against biofilm forming and consolidated biofilm. The synergistic activity of EOAT and EOLA with florfenicol was performed by the checkerboard technique...
October 13, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29033473/impact-of-atra-on-ovalbumin-and-mold-sensitized-f344-rats-and-reversal-of-health-related-implications-by-citral
#2
Ibrahim O Farah, Carlene Holt-Gray, Joseph A Cameron, Michelle Tucci, Hamed Benghuzzi
The role of retinoic acid (All Trans Retinoic Acid; ATRA) in the development of hypervitaminosis A pathophysiology is not well understood or established in the literature. As well, the role of Citral (inhibitor of retinoid function; a non-toxic chemical that exists in two forms (diethyl; C1 or cis-trans dimethyl; C2).) in the reversal of pathophysiological implications is also not ascertained under an in vivo setting. Therefore, it is hypothesized that ovalbumin exposure will sensitize the body to supra-physiologic levels of retinoic acid leading to a negative pathophysiological impact and that Citrals 1 and 2 will reverse or ameliorate the related damage to the body's pathophysiology...
March 2017: Biomedical Sciences Instrumentation
https://www.readbyqxmd.com/read/29033472/histopathological-analysis-of-the-f344-rat-lung-upon-exposure-to-retenoic-acid-ovalbumin-mold-spores-and-citral
#3
Ibrahim O Farah, Carlene Holt-Gray, Joseph A Cameron, Michelle Tucci, Hamed Benghuzzi
The paradoxical role of retinoic acid (All Trans Retinoic Acid; ATRA) in the development of allergic and/or inflammatory complications in contrast to a therapeutic modality for lung pathology is not well understood or established in the literature. As well, the role of Citral (inhibitor of retinoid function; a non-toxic chemical that exists in two forms (diethyl; C1 or cis-trans dimethyl; C2), in the reversal of retinoic acid, ovalbumin and allergic mold spore pathophysiology is also not well ascertained under an in vivo setting...
March 2017: Biomedical Sciences Instrumentation
https://www.readbyqxmd.com/read/29030319/coordination-of-different-complexes-to-copper-ii-and-cobalt-iii-metal-centers-enhances-zika-virus-and-dengue-virus-loads-in-both-arthropod-cells-and-human-keratinocytes
#4
Shovan Dutta, Michael J Celestine, Supreet Khanal, Alexis Huddleston, Colin Simms, Jessa Faye Arca, Amlan Mitra, Loree Heller, Piotr J Kraj, Michel Ledizet, John F Anderson, Girish Neelakanta, Alvin A Holder, Hameeda Sultana
Trace elements such as copper and cobalt have been associated with virus-host interactions. However, studies to show the effect of conjugation of copper(II) or cobalt(III) metal centers to thiosemicarbazone ligand(s) derived from either food additives or mosquito repellent such as 2-acetylethiazole or citral, respectively, on Zika virus (ZIKV) or dengue virus (serotype 2; DENV2) infections have not been explored. In this study, we show that four compounds comprising of thiosemicarbazone ligand derived from 2-acetylethiazole viz...
October 10, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28974979/improvement-of-citral-antimicrobial-activity-by-incorporation-into-nanostructured-lipid-carriers-a-potential-application-in-food-stuffs-as-a-natural-preservative
#5
Manijeh Mokarizadeh, Hossein Samadi Kafil, Saeed Ghanbarzadeh, Ainaz Alizadeh, Hamed Hamishehkar
At the present time, utilization of essential oils in food preservation to prevent bacterial and fungal growth and improve shelf life and safety of the food products has notably gained increased interest. The aim of the present study was to improve the antimicrobial efficacy of citral as a natural preservative using nanostructured lipid carriers (NLCs). Formulations of NLCs were characterized using particle size analysis and scanning electron microscopy methods. Possible citral-carrier interaction and citral encapsulation efficiency percent (EE%) were assessed by Fourier transform infrared (FTIR) spectroscopy and gas chromatography techniques, respectively...
October 2017: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28969111/citral-a-monoterpene-protect-against-high-glucose-induced-oxidative-injury-in-hepg2-cell-in-vitro-an-experimental-study
#6
Sri Devi Subramaniyan, Ashok Kumar Natarajan
INTRODUCTION: Diabetes mellitus, a major metabolic disorder associated with hyperglycaemia is one of the leading cause of death in many developed countries. However, use of natural phytochemicals have been proved to have a protective effect against oxidative damage. AIM: To investigate the effect of citral, a monoterpene on high glucose induced cytotoxicity and oxidative stress in human hepatocellular liver carcinoma (Hep G2) cell line. MATERIALS AND METHODS: Cells were treated with 50 mM concentration of glucose for 24 hours incubation following citral (30 μM) was added to confluent HepG2 cells...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28948452/citral-and-linalool-chemotypes-of-lippia-alba-essential-oil-as-anesthetics-for-fish-a-detailed-physiological-analysis-of-side-effects-during-anesthetic-recovery-in-silver-catfish-rhamdia-quelen
#7
Carine de Freitas Souza, Matheus Dellaméa Baldissera, Adriane Erbice Bianchini, Elisia Gomes da Silva, Rosa Helena Veraz Mourão, Lenise Vargas Flores da Silva, Denise Schmidt, Berta Maria Heinzmann, Bernardo Baldisserotto
The viability using Lippia alba essential oil as an anesthetic for fish was studied, particularly with respect to physiological effects during recovery. Anesthesia of silver catfish (Rhamdia quelen) using 100 and 300 μL L(-1) of two different chemotypes of L. alba essential oil (citral EO-C and linalool EO-L) prevented the increase of plasma cortisol levels caused by handling, but did not avoid alterations in energetic metabolism. Silver catfish did not have increased the levels of thiobarbituric acid reactive species in the kidney and liver during recovery after anesthesia with either EO, avoiding lipid damage...
September 26, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28930254/synthesis-antimicrobial-and-antioxidant-activities-of-chalcogen-containing-nitrone-derivatives-from-r-citronellal
#8
Mariana C Ferraz, Renata A Mano, Daniela H Oliveira, Darla S V Maia, Wladimir P Silva, Lucielli Savegnago, Eder J Lenardão, Raquel G Jacob
Background: The main constituents of Cymbopogonnardus (L) Rendle and C. citratus (DC) Stapfessential oils are (R)-citronellal and citral, respectively. Organochalcogen compounds can boost the biological activities of natural products. Methods: Several chalcogen-containing nitrones derived from (R)-citronellal and citral were prepared and evaluated for their antimicrobial and antioxidant activities. The antimicrobial activity was evaluated by the disc diffusion test and the antioxidant properties were evaluated in vitro by DPPH (1,1-diphenyl-2-picryl-hydrazyl), ABTS (2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid), and FRAP (ferric ion reducing antioxidant power) assays...
June 10, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28929437/toxicities-of-monoterpenes-against-housefly-musca-domestica-l-diptera-muscidae
#9
Zhilin Zhang, Yongjian Xie, Yong Wang, Zhufeng Lin, Lihua Wang, Guoyuan Li
The development of natural plant extracts and essential oils will assist to decrease the negative effects of synthetic chemicals. Many plant extracts and essential oils contain monoterpenes, sesquiterpenes, and aliphatic compounds. In the present study, the fumigation activity of 42 pure monoterpenes against housefly, Musca domestica, was evaluated. Results from fumigation tests revealed that ρ-cymene, terpinolene, (±)-menthol, thymol, carvacrol, (-)-carvone, (+)-camphor, (+)-pulegone, (-)-menthone, citral, (±)-citronellal, cuminaldehyde, and citronellyl acetate exhibited strong fumigation activity against M...
September 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28928528/alginate-edible-films-containing-microencapsulated-lemongrass-oil-or-citral-effect-of-encapsulating-agent-and-storage-time-on-physical-and-antimicrobial-properties
#10
Jessica K Alarcón-Moyano, Rubén O Bustos, María Lidia Herrera, Silvia B Matiacevich
Active edible films have been proposed as an alternative to extend shelf life of fresh foods. Most essential oils have antimicrobial properties; however, storage conditions could reduce their activity. To avoid this effect the essential oil (EO) can be microencapsulated prior to film casting. The aim of this study was to determine the effects of the type of encapsulating agent (EA), type of EO and storage time on physical properties and antimicrobial activity of alginate-based films against Escherichia coli ATCC 25922...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28899514/citral-a-monoterpenoid-aldehyde-interacts-synergistically-with-norfloxacin-against-methicillin-resistant-staphylococcus-aureus
#11
Priyanka Gupta, Dinesh Kumar Patel, Vivek Kumar Gupta, Anirban Pal, Sudeep Tandon, M P Darokar
BACKGROUND: Staphylococcus aureus (SA), is a major human pathogen causing wide range of clinical infections, which has been further complicated by drug resistance like methicillin resistant S. aureus (MRSA), vancomycin intermediate S. aureus (VISA)/vancomycin resistant S. aureus (VRSA), etc. The present study was aimed at determining anti-staphylococcal potential of citral against drug resistant clinical isolates alone and in combination with antibiotics. PURPOSE: To assess the potential of citral in combination with norfloxacin in treating drug resistant infections of SA...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28867805/cytotoxic-activity-of-origanum-vulgare-l-on-hepatocellular-carcinoma-cell-line-hepg2-and-evaluation-of-its-biological-activity
#12
Hazem S Elshafie, Maria F Armentano, Monica Carmosino, Sabino A Bufo, Vincenzo De Feo, Ippolito Camele
The potential of plant essential oils (EOs) in anticancer treatment has recently received many research efforts to overcome the development of multidrug resistance and their negative side effects. The aims of the current research are to study (i) the cytotoxic effect of the crude EO extracted from Origanum vulgare subsp hirtum and its main constituents (carvacrol, thymol, citral and limonene) on hepatocarcinoma HepG2 and healthy human renal cells HEK293; (ii) the antibacterial and phytotoxic activities of the above EO and its main constituents...
August 30, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28845443/in-vitro-antibacterial-and-antibiofilm-activity-of-lippia-alba-essential-oil-citral-and-carvone-against-staphylococcus-aureus
#13
Emanuela Mesquita Porfírio, Hider Machado Melo, Antônio Matheus Gomes Pereira, Theodora Thays Arruda Cavalcante, Geovany Amorim Gomes, Mário Geraldo de Carvalho, Renata Albuquerque Costa, Francisco Eduardo Aragão Catunda Júnior
In vitro antimicrobial and antibiofilm activities of the Lippia alba essential oil and its major components (citral and carvone) against Staphylococcus aureus were investigated. Essential oils (LA1EO, LA2EO, and LA3EO) were extracted from the aerial parts of three L. alba specimens by hydrodistillation and analyzed by gas chromatography coupled to a mass spectrometer. Minimum Inhibitory Concentrations (MIC) and Minimum Bacterial Concentration (MBC) were determined by the microdilution method. For the antibiofilm assays, the biomass formation in the biofilm was evaluated by the microtiter-plate technique with the crystal violet (CV) assay and the viability of the bacterial cells was analyzed...
2017: TheScientificWorldJournal
https://www.readbyqxmd.com/read/28841022/combination-treatment-of-citral-potentiates-the-efficacy-of-hyperthermic-intraperitoneal-chemoperfusion-with-pirarubicin-for-colorectal-cancer
#14
Zhiyuan Fang, Yu Wang, Hao Li, Shuaishuai Yu, Ziying Liu, Zhichao Fan, Xiaomin Chen, Yuying Wu, Xuebo Pan, Xiaokun Li, Cong Wang
Citral is a widely used penetration enhancer that has been used to assist the delivery of drugs through the skin. In this study we aimed to investigate the effectiveness of combination treatments of citral with hyperthermic intraperitoneal chemotherapy (HIPEC) for colorectal cancer and to unravel the underlying mechanism by which citral increased the efficacy of HIPEC. In vitro experiments indicated that citral increased cytoplasmic absorption of pirarubicin and potentiated the effects of pirarubicin on colorectal cancer cells to induce apoptosis...
October 2, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28815626/preliminary-quantification-of-the-permeability-solubility-and-diffusion-coefficients-of-major-aroma-compounds-present-in-herbs-through-various-plastic-packaging-materials
#15
Pattarin Leelaphiwat, Rafael A Auras, Gary Burgess, Janice B Harte, Vanee Chonhenchob
BACKGROUND: Aroma permeation through packaging material is an important factor when designing a package for food products. The masses of aroma compounds permeating through films over time were measured at 25 °C using a quasi-isostatic system. A model was proposed for estimating the permeability coefficients (P) of key aroma compounds present in fresh herbs (i.e., eucalyptol, estragole, linalool and citral) through major plastic films used by the food industry (i.e., low-density polyethylene (LDPE), polypropylene (PP), nylon (Nylon), polyethylene terephthalate (PET), metalized-polyethylene terephthalate (MPET) and poly(lactic acid) (PLA))...
August 16, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28758914/in-vitro-evaluation-of-sub-lethal-concentrations-of-plant-derived-antifungal-compounds-on-fusaria-growth-and-mycotoxin-production
#16
Caterina Morcia, Giorgio Tumino, Roberta Ghizzoni, Assetou Bara, Nesrine Salhi, Valeria Terzi
Phytopathogenic fungi can lead to significant cereal yield losses, also producing mycotoxins dangerous for human and animal health. The fungal control based on the use of synthetic fungicides can be complemented by "green" methods for crop protection, based on the use of natural products. In this frame, the antifungal activities of bergamot and lemon essential oils and of five natural compounds recurrent in essential oils (citronellal, citral, cinnamaldehyde, cuminaldehyde and limonene) have been evaluated against three species of mycotoxigenic fungi (Fusarium sporotrichioides, F...
July 29, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28745768/the-sos-chromotest-applied-for-screening-plant-antigenotoxic-agents-against-ultraviolet-radiation
#17
J L Fuentes, A García Forero, N Quintero Ruiz, C A Prada Medina, N Rey Castellanos, D A Franco Niño, D A Contreras García, Y Córdoba Campo, E E Stashenko
In this work, we investigated the usefulness of the SOS Chromotest for screening plant antigenotoxic agents against ultraviolet radiation (UV). Fifty Colombian plant extracts obtained by supercritical fluid (CO2) extraction, twelve plant extract constituents (apigenin, carvacrol, β-caryophyllene, 1,8-cineole, citral, p-cymene, geraniol, naringenin, pinocembrin, quercetin, squalene, and thymol) and five standard antioxidant and/or photoprotective agents (curcumin, epigallocatechin gallate, resveratrol, α-tocopherol, and Trolox®) were evaluated for their genotoxicity and antigenotoxicity against UV using the SOS Chromotest...
September 13, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28717379/hepatoprotective-effect-of-citral-on-acetaminophen-induced-liver-toxicity-in-mice
#18
Nancy Sayuri Uchida, Saulo Euclides Silva-Filho, Gabriel Fernando Esteves Cardia, Edivaldo Cremer, Francielli Maria de Souza Silva-Comar, Expedito Leite Silva, Ciomar Aparecida Bersani-Amado, Roberto Kenji Nakamura Cuman
High doses of acetaminophen (APAP) lead to acute liver damage. In this study, we evaluated the effects of citral in a murine model of hepatotoxicity induced by APAP. The liver function markers alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), and gamma-glutamyl transferase (γGT) were determined to evaluate the hepatoprotective effects of citral. The livers were used to determine myeloperoxidase (MPO) activity and nitric oxide (NO) production and in histological analysis...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28708833/proliferating-effect-of-radiolytically-depolymerized-carrageenan-on-physiological-attributes-plant-water-relation-parameters-essential-oil-production-and-active-constituents-of-cymbopogon-flexuosus-steud-under-drought-stress
#19
Minu Singh, M Masroor A Khan, Moin Uddin, M Naeem, M Irfan Qureshi
Carrageenan has been proved as potent growth promoting substance in its depolymerized form. However, relatively little is known about its role in counteracting the adverse effects of drought stress on plants. In a pot experiment, lemongrass (Cymbopogon flexuosus Steud.), grown under different water stress regimes [(100% field capacity (FC), 80% FC and 60% FC)], was sprayed with 40, 80 and 120 mg L-1 of gamma irradiated carrageenan (ICA). Foliar application of ICA mitigated the harmful effects of drought stress to various extents and improved the biochemical characteristics, quality attributes and active constituents (citral and geraniol) of lemongrass significantly...
2017: PloS One
https://www.readbyqxmd.com/read/28699786/inactivation-of-norovirus-by-lemongrass-essential-oil-using-a-norovirus-surrogate-system
#20
Ye Won Kim, Hyun Ju You, Soyoung Lee, Bomi Kim, Do Kyung Kim, Joo-Bong Choi, Ji-Ah Kim, Hee Jung Lee, In Sun Joo, Jeong Su Lee, Dong Hyun Kang, Giljae Lee, Gwang Pyo Ko, Sung-Joon Lee
This study investigated the effect of lemongrass essential oil (LGEO) on the infectivity and viral replication of norovirus. Murine norovirus 1 (MNV-1), a surrogate of human norovirus, was preincubated with LGEO and then used to infect RAW 264.7 cells in a plaque reduction assay. LGEO exhibited a significant reduction in MNV-1 plaque formation in both time- and dose-dependent manners. The quantification of viral genome by quantitative real-time PCR showed similar results in line with those of the plaque reduction assay...
August 2017: Journal of Food Protection
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