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Antimicrobial activity plant extract

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https://www.readbyqxmd.com/read/29334239/antimicrobial-and-antiquorum-sensing-activity-of-ricinus-communis-extracts-and-ricinine-derivatives
#1
Mai H El-Naggar, Abdelaziz Elgaml, Fatma M Abdel Bar, Farid A Badria
Ricinine (1), a known major alkaloid in Ricinus communis plant, was used as a starting compound for the synthesis of six ricinine derivatives; two new and four known compounds. The new derivatives; 3-amino-5-methyl-1H-pyrazolo[4,3-c]pyridin-4(5H)-one (2), and 3-amino-5-methyl-1-(phenylsulfonyl)-1H-pyrazolo[4,3-c]pyridin-4(5H)-one (3), as well as the previously prepared derivatives (4-7) were subjected for antimicrobial and antiquorum-sensing evaluation in comparison to different R. communis extracts. Acetyl ricininic acid derivative (5) showed the highest antimicrobial activity among all tested derivatives against Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeuroginosa and Candida albicans...
January 15, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29333042/gas-chromatography-mass-spectrometry-profiling-in-methanolic-and-ethyl-acetate-root-and-stem-extract-of-corbichonia-decumbens-forssk-exell-from-thar-desert-of-rajasthan-india
#2
Sunita Arora, Manju Saini
Background: Corbichonia decumbens (Forssk.) Exell (Molluginaceae), recently has moved to Lophiocarpaceae as per angiospermic plant group (APG) III system, is an annual or short-lived, dwarf, glabrous subshrub, prefers to grow on rocky places and on sand-stones in dry, hot areas of Rajasthan. This is the potential plant with medicinal properties. Vegetative organs under study show antioxidant, anti-inflammatory, antiulcer, antimicrobial, and antinociception activity. Objective: This study was carried out to identify the phytoconstituents present in the methanolic and ethyl-acetate extract of root and stem of C...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29331852/no-time-to-waste-organic-waste-nanosizing-converts-remains-of-food-processing-into-refined-materials
#3
Sharoon Griffin, Muhammad Sarfraz, Verda Farida, Muhammad Jawad Nasim, Azubuike P Ebokaiwe, Cornelia M Keck, Claus Jacob
Modern food processing results in considerable amounts of side-products, such as grape seeds, walnut shells, spent coffee grounds, and harvested tomato plants. These materials are still rich in valuable and biologically active substances and therefore of interest from the perspective of waste management and "up-cycling". In contrast to traditional, often time consuming and low-value uses, such as vermicomposting and anaerobic digestion, the complete conversion into nanosuspensions unlocks considerable potentials of and new applications for such already spent organic materials without the need of extraction and without producing any additional waste...
January 11, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29331315/ethnobotany-phytochemistry-and-pharmacology-of-arctotis-arctotoides-l-f-o-hoffm-a-review
#4
REVIEW
Md Moshfekus Saleh-E-In, Johannes Van Staden
ETHNOPHARMACOLOGICAL RELEVANCE: Arctotis arctotoides (Asteraceae) is part of the genus Arctotis. Arctotis is an African genus of approximately 70 species that occur widely in the African continent with diverse medicinal values. This plant is used for the treatment of indigestion and catarrh of the stomach, epilepsy, topical wounds and skin disorders among the ethnic groups in South Africa and reported to have a wide spectrum of pharmacological properties. AIM OF THE REVIEW: The aim of the present review is to appraise the botany, traditional uses, phytochemistry, pharmacological potential, analytical methods and safety issues of A...
January 10, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29329806/effect-of-different-animal-fat-and-plant-oil-additives-on-physicochemical-mechanical-antimicrobial-and-antioxidant-properties-of-chitosan-films
#5
Lalehan Akyuz, Murat Kaya, Sedef Ilk, Yavuz Selim Cakmak, Asier M Salaberria, Jalel Labidi, Bahar Akyuz Yılmaz, Idris Sargin
Practical application of chitosan-essential oil blend films is limited due to the uneconomical extraction procedure of essential oils from plants. This study aimed to produce chitosan films blended with low cost and commercially available oils and fats consumed in daily human diet (olive, corn and sunflower oils, butter and animal fats). The study also focused on how physicochemical, biological and mechanical properties of chitosan blend films were influenced by the incorporation of oils and fats with varying unsaturation degrees...
January 9, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29322016/evaluation-of-in%C3%A2-vitro-and-in%C3%A2-vivo-antileishmanial-potential-of-bergenin-rich-bergenia-ligulata-wall-engl-root-extract-against-visceral-leishmaniasis-in-inbred-balb-c-mice-through-immunomodulation
#6
Rupinder Kaur, Sukhbir Kaur
Background: Medicinal plants with immunomodulatory properties can provide good alternative therapeutics for curing visceral leishmaniasis. Bergenia ligulata (Wall.) Engl. is an interesting plant with strong antioxidant, antimicrobial, immunomodulatory and hepatoprotective properties. Aim: The present study was planned to determine the antileishmanial activity of plant extract by modulating the immune responses of inbred BALB/c mice. Methodology: Bergenin, the principle active component of B...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29322006/attenuation-of-quorum-sensing-dependent-virulence-factors-and-biofilm-formation-by-medicinal-plants-against-antibiotic-resistant-pseudomonas-aeruginosa
#7
P Sankar Ganesh, V Ravishankar Rai
Pseudomonas aeruginosa use small signaling molecules such as acyl homoserine lactones (AHLs), which play an important role in release virulence factors and toxin for further establishment of host infection. Thus, involving with the QS system would provide alternative ways of preventing the pathogenicity. In the present study, totally six medicinal plants (Terminalia bellerica, Celastrus paniculatus, Kingiodendron pinnatum, Schleichera oleosa, Melastoma malabathricum, Garcinia gummi-gutta) were screened for anti-QS activity using biomonitor strain of Chromobacterium violaceum CV12472...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29319517/characterisation-of-antimicrobial-properties-of-extracts-of-selected-medicinal-plants
#8
Monika Cioch, Paweł Satora, Magdalena Skotniczny, Dorota Semik-Szczurak, Tomasz Tarko
The scope of the experiments included analysis of the antimicrobial activity of ethanolic, methanolic and aqueous extracts against bacterial and fungal cultures and determination of the minimum inhibitory concentration of plant extracts tested microbial growth. Analysis of the antifungal and antibacterial activity was carried out by the disc diffusion method using paper discs. In the experiment 11 species of microorganisms - 8 bacterial and 3 fungal strains were used. The highest antimicrobial activity against the tested strains was demonstrated by black elder (Sambucus nigra L...
December 4, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/29302624/chemical-composition-and-antifungal-effect-of-hydroalcoholic-extract-of-allium-tripedale-tvautv-against-candida-species
#9
M Shirani, A Samimi, H Kalantari, M Madani, A Kord Zanganeh
Background and Purpose: Treatment of life-threatening fungal infections caused by Candida species has become a major problem. Candida spp. are the most important causative agents of candidiasis. Allium tripedale is a medicinal plant that has been traditionally used to treat infections. In the present study, we aimed to determine the chemical compounds and antimicrobial activity of hydroalcoholic extract of A. tripedale against different species of Candida. Materials and Methods: Phytochemical analysis was performed to identify the possible bioactive components of this extract by using gas chromatography and mass spectroscopy (GC-MS)...
March 2017: Advances in Medical Mycology (Iran)
https://www.readbyqxmd.com/read/29301368/antimicrobial-activities-of-european-propolis-collected-from-various-geographic-origins-alone-and-in-combination-with-antibiotics
#10
Issam Al-Ani, Stefan Zimmermann, Jürgen Reichling, Michael Wink
Background: Propolis consists of a complex mixture of resinous substances collected by honeybees from different plant sources. The objective of this study was to investigate the chemical composition, biological activities, and synergistic properties with antibiotics of propolis samples collected from various geographic origins (Germany, Ireland, and Czech Republic). Methods: The chemical composition of the propolis was analyzed by Gas Liquid Chromatography-Mass Spectrometry (GLC-MS) and High-performance liquid chromatography (HPLC)...
January 3, 2018: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/29300393/-comparison-of-chemical-composition-of-selected-essential-oils-used-in-respiratory-diseases
#11
Małgorzata Kucharska, Jadwiga A Szymańska, Wiktor Wesołowski, Elżbieta Bruchajzer, Barbara Frydrych
BACKGROUND: Essential oils are fragrances extracted from plants. They have a smooth consistency and pleasant smell. Essential oils have been applied in aromatherapy, cosmetics, food and pharmaceutical products. The aim of the study was to analyze the composition of selected essential oils used in respiratory diseases. MATERIAL AND METHODS: The qualitative analysis was performed by gas chromatography with mass spectrometry. For the study 6 essential oils available in Polish shops and used in various respiratory diseases were chosen...
December 19, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/29299181/antioxidant-agents-against-trichothecenes-new-hints-for-oxidative-stress-treatment
#12
REVIEW
Qinghua Wu, Xu Wang, Eugenie Nepovimova, Yun Wang, Hualin Yang, Li Li, Xiujuan Zhang, Kamil Kuca
Trichothecenes are a group of mycotoxins mainly produced by fungi of genus Fusarium. Due to high toxicity and widespread dissemination, T-2 toxin and deoxynivalenol (DON) are considered to be the most important compounds of this class. Trichothecenes generate free radicals, including reactive oxygen species (ROS), which induce lipid peroxidation, decrease levels of antioxidant enzymes, and ultimately lead to apoptosis. Consequently, oxidative stress is an active area of research on the toxic mechanisms of trichothecenes, and identification of antioxidant agents that could be used against trichothecenes is crucial for human health...
December 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/29295695/anticancer-properties-of-essential-oils-an-overview
#13
Milene Aparecida Andrade, Mariana Aparecida Braga, Pedro Henrique Souza Cesar, Marcus Vinicius Cardoso Trento, Mariana Araujo Esposito, Lucilene Fernandes Silva
BACKGROUND: Essential oils are complex mixtures of low molecular weight compounds extracted from plants. Their main constituents are terpenes and phenylpropanoids, which are responsible for their biological and pharmaceutical properties, such as insecticidal, parasiticidal, antimicrobial, antioxidant, anti-inflammatory, analgesic, antinociceptive, anticarcinogenic, and antitumor properties. Cancer is a complex genetic disease considered as a serious public health problem worldwide, accounting for more than 8 million deaths annually...
January 1, 2018: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/29288826/ethnopharmacological-uses-phytochemistry-and-pharmacology-of-genus-adiantum-a-comprehensive-review
#14
REVIEW
Subha Rastogi, Madan Mohan Pandey, Ajay Kumar Singh Rawat
ETHNOPHARMACOLOGICAL RELEVANCE: Genus Adiantum (Pteridaceae) forms a significant dominant component of many plant communities especially in the tropical and temperate regions. These are commonly known as maidenhair ferns and several have been used medicinally in different parts of the world. They exhibit antidysenteric, antiulcer, antimicrobial, antitumor and antiviral activities. The traditional uses of Adiantum species are known to be for respiratory problems such as cough cold, fever, pneumonia and mucous formation...
December 27, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29279803/wound-healing-potential-of-oil-of-hypercium-perforatum-in-excision-wounds-of-male-sprague-dawley-rats
#15
Shivananada B Nayak, Kubra Isik, Julien R Marshall
Objective: To evaluate the wound-healing activity of oil of Hypercium perforatum (St. John's wort), in excision wounds of male white rats. Approach: The current methods of wound management involve the use of antibiotic creams. The search for more natural materials for the purpose of healing of wounds has led to the discoveries of potential agents prepared from plant extracts. Hyperforin and Hypericin are important phytochemical constituents found in H. perforatum, which have been highlighted for their antimicrobial, antiviral, and anti-inflammatory properties in recent times...
December 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/29277539/skin-wound-healing-is-accelerated-by-a-lipid-mixture-representing-major-lipid-components-of-chamaecyparis-obtusa-plant-extract
#16
Byung Eui Kim, Elena Goleva, Clifton F Hall, Sang Hyun Park, Un Ha Lee, Anne M Brauweiler, Joanne E Streib, Brittany N Richers, Gwuicheol Kim, Donald Y M Leung
In chronic non-healing wounds, the healing process is disrupted and wounds are often infected with bacteria. About 85% of lower extremity amputations in diabetes are attributed to deep infection of foot ulcers. Therefore, infection control is critical for wound care. In this study, we analyzed lipid composition of Chamaecyparis (C) obtusa extract, and describe the wound healing properties of its combination of ten major lipid components. A 10 lipid mixture upregulated HBD-3 and LL-37 through the olfactory receptor 2AT4, and induced phosphorylation of extracellular signal-regulated kinases and p38 mitogen-activated protein kinases in primary human keratinocytes...
December 22, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29277116/trixis-angustifolia-hexanic-extract-displays-%C3%A2-synergistic-antibacterial-activity-against-m-tuberculosis
#17
Anahí C Sánchez-Chávez, Anuar Salazar-Gómez, L Gerardo Zepeda-Vallejo, María de L Hernández de Jesús, Manuel Quintos-Escalante, Ma Elena Vargas-Díaz, Julieta Luna-Herrera
A phytochemical and antibacterial study of Trixis angustifolia, a species endemic to Mexico, was performed allowing the isolation of six flavones. The minimal inhibitory concentration (MIC) of the hexanic extract, against Mycobacterium tuberculosis H37Rv was 25 μg/mL. The hexanic extract caused a significant inhibition of intracellular mycobacterial growth at 12.5 μg/mL. The biodirected assay of hexane extract enabled the detection of an active fraction (AF) against M. tuberculosis (MIC = 12.5 μg/mL), and a major flavone 1 (pebrellin) with no antimycobacterial activity (MIC > 200 μg/mL)...
December 25, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29272975/purification-and-identification-of-4-allylbenzene-1-2-diol-an-antilisterial-and-biofilm-preventing-compound-from-the-leaves-of-piper-betle-l-var-pachaikodi
#18
Sekar Kavitha, Adhikesavan HariKrishnan, Kadirvelu Jeevaratnam
Antibiotic-resistant food-borne Listeriosis has been rising with up to 30% mortality threat in humans since several decades. Hence, discovering antilisterial from the extracts of ethnomedicinal plants may be of value as a novel antidote. In our preceding study, we reported that ethanolic extract of Piper betle L. var Pachaikodi leaves exhibited antibacterial activity towards Listeria monocytogenes MTCC 657. Consequently in the present study, the bioactive molecule responsible for anti-Listeria activity was purified and identified as 4-allylbenzene-1,2-diol...
December 22, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29261103/calli-essential-oils-synergize-with-lawsone-against-multidrug-resistant-pathogens
#19
Sameh S M Soliman, Abrar I Alsaadi, Eman G Youssef, Gregory Khitrov, Ayman M Noreddin, Mohamed I Husseiny, Ashraf S Ibrahim
The fast development of multi-drug resistant (MDR) organisms increasingly threatens global health and well-being. Plant natural products have been known for centuries as alternative medicines that can possess pharmacological characteristics, including antimicrobial activities. The antimicrobial activities of essential oil (Calli oil) extracted from the Calligonum comosum plant by hydro-steam distillation was tested either alone or when combined with lawsone, a henna plant naphthoquinone, against MDR microbes...
December 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29258194/synergy-between-ursolic-and-oleanolic-acids-from-vitellaria-paradoxa-leaf-extract-and-%C3%AE-lactams-against-methicillin-resistant-staphylococcus-aureus-in-vitro-and-in-vivo-activity-and-underlying-mechanisms
#20
Lucy Catteau, Nathalie T Reichmann, Joshua Olson, Mariana G Pinho, Victor Nizet, Françoise Van Bambeke, Joëlle Quetin-Leclercq
Combining antibiotics with resistance reversing agents is a key strategy to overcome bacterial resistance. Upon screening antimicrobial activities of plants used in traditional medicine, we found that a leaf dichloromethane extract from the shea butter tree (Vitellaria paradoxa) had antimicrobial activity against methicillin-resistant Staphylococcus aureus (MRSA) with further evidence of synergy when combined with β-lactams. Using HPLC-MS, we identified ursolic (UA) and oleanolic acids (OA) in leaves and twigs of this species, and quantified them by HPLC-UV as the major constituents in leaf extracts (21% and 6% respectively)...
December 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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