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Antimicrobial effect plant extract

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https://www.readbyqxmd.com/read/28725623/isolation-and-characterization-of-antimicrobial-compound-from-the-stem-bark-of-the-traditionally-used-medicinal-plant-adenium-obesum
#1
Mohammed Sohail Akhtar, Mohammad Amzad Hossain, Sadri Abdullah Said
BACKGROUND: Medicinal plants constitute a natural reservoir for medicines worldwide. They serve mainstream therapeutics and are central in folklore medicine. In case of Adenium obesum (Lav, Apocynaceae), indigenous people of Oman use it for the treatment of venereal diseases, wounds, skin diseases, headaches, muscle pain as well as joint pain; yet, the active ingredients have not been classified. To screened the antioxidant and antimicrobial activities of an identified compound that we isolated from the highest active chloroform extract...
July 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/28719862/green-biosynthesis-of-silver-nanoparticles-using-leaves-extract-of-artemisia-vulgaris-and-their-potential-biomedical-applications
#2
Tahir Rasheed, Muhammad Bilal, Hafiz M N Iqbal, Chuanlong Li
Biosynthesis of nanoparticles from plant extracts is receiving enormous interest due to their abundant availability and a broad spectrum of bioactive reducing metabolites. In this study, the reducing potential of Artemisia vulgaris leaves extract (AVLE) was investigated for synthesizing silver nanoparticles without the addition of any external reducing or capping agent. The appearance of blackish brown color evidenced the complete synthesis of nanoparticles. The synthesized silver nanoparticles were characterized by UV-vis spectroscopy, scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscope (TEM), atomic force microscopy (AFM) and Fourier transforms infrared spectroscopy (FT-IR) analysis...
July 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28716103/cytotoxic-activity-of-extracts-and-crude-saponins-from-zanthoxylum-armatum-dc-against-human-breast-mcf-7-mda-mb-468-and-colorectal-caco-2-cancer-cell-lines
#3
Fiaz Alam, Qazi Najum Us Saqib, Abdul Waheed
BACKGROUND: Zanthoxylum armatum DC has been an important traditional plant known for its medicinal properties. It is well known for its antimicrobial, larvicidal and cytotoxic activities. METHODS: The potential anticancer effects of the methanol extract and the crude saponins from fruit, bark and leaves of Z. armatum on breast (MDA-MB-468 and MCF-7) and colorectal (Caco-2) cancer cell lines using MTT, neutral red uptake(NRU) and DAPI stain assays were evaluated...
July 17, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28699009/bio-fabrication-of-silver-nanoparticles-using-the-leaf-extract-of-an-ancient-herbal-medicine-dandelion-taraxacum-officinale-evaluation-of-their-antioxidant-anticancer-potential-and-antimicrobial-activity-against-phytopathogens
#4
Rijuta G Saratale, Giovanni Benelli, Gopalakrishnan Kumar, Dong Su Kim, Ganesh D Saratale
In recent years, the use of nanoparticle-based antimicrobials has been increased due to many advantages over conventional agrochemicals. This study investigates the utilization of common medicinal plant dandelion, Taraxacum officinale, for the synthesis of silver nanoparticles (TOL-AgNPs). AgNPs were evaluated for antimicrobial activity against two important phytopathogens, Xanthomonas axonopodis and Pseudomonas syringae. The morphology, size, and structure of TOL-AgNPs were characterized using UV-visible spectroscopy and X-ray diffraction (XRD)...
July 11, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28687321/in%C3%A2-vitro-antibiofilm-efficacy-of-piper-betle-against-quorum-sensing-mediated-biofilm-formation-of-luminescent-vibrio-harveyi
#5
Ramanathan Srinivasan, Sivasubramanian Santhakumari, Arumugam Veera Ravi
Vibrio harveyi is a potent biofilm former, which confers resistance to multiple antimicrobials, disinfectants, chemicals and biocides. The prevalence of biofilm mediated antibiotic resistance among aquatic bacterial pathogens stresses the search for novel alternative approach to treat vibriosis in aquaculture. Exploring suitable therapeutics from natural resources could be a novel area of research. Therefore, this work was executed to evaluate the inhibitory effect of Piper betle ethyl acetate extract (PBE) on bioluminescence production and biofilm formation of V...
July 4, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28683409/thymus-vulgaris-l-extract-has-antimicrobial-and-anti-inflammatory-effects-in-the-absence-of-cytotoxicity-and-genotoxicity
#6
Jonatas Rafael de Oliveira, Daiane de Jesus Viegas, Ana Paula Réquia Martins, Cláudio Antonio Talge Carvalho, Cristina Pacheco Soares, Samira Esteves Afonso Camargo, Antonio Olavo Cardoso Jorge, Luciane Dias de Oliveira
OBJECTIVES: This study evaluated the biological effects of the T. vulgaris L. extract., such as antimicrobial activity on planktonic cultures and mono- and polymicrobial biofilms, cytotoxicity, anti-inflammatory activity and genotoxicity. METHODS: Monomicrobial biofilms of Candida albicans, Staphylococcus aureus, Enterococcus faecalis, Streptococcus mutans and Pseudomonas aeruginosa and polymicrobial biofilms composed by C. albicans with each bacterium were formed for 48h and exposed for 5min to the plant extract...
June 27, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28681662/microwave-assisted-green-synthesis-of-silver-nanoparticles-using-leaf-extract-of-elephantopus-scaber-and-its-environmental-and-biological-applications
#7
Sijo Francis, Siby Joseph, Ebey P Koshy, Beena Mathew
The fabrication of spherical silver nanoparticles using the phytoreducing agent Elephantopus scaber is reported here. Irradiation of the reaction mixture under a domestic microwave oven enabled the formation of stable silver nanoparticles and was confirmed by UV-vis spectral portrait. Chemical components inherent in the aqueous leaf extract which reduces the monovalent silver were identified by FT-IR spectroscopy. The crystal structure of the synthesized nanoparticles was established as face centred cube by the powder XRD analysis...
July 6, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28681622/indigofera-tinctoria-leaf-extract-mediated-green-synthesis-of-silver-and-gold-nanoparticles-and-assessment-of-their-anticancer-antimicrobial-antioxidant-and-catalytic-properties
#8
Remya Vijayan, Siby Joseph, Beena Mathew
This study reports the synthesis of noble metal nanoparticles, namely silver and gold from their respective salt by leaf extract of a medicinal plant Indigofera tinctoria. This leaf extract plays a dual role as stabilizing and reducing agent for the formation of nanoparticles. The synthesized silver and gold nanoparticles were characterized by UV-vis. spectroscopy, FTIR spectroscopy, XRD, TEM, EDX and AFM analysis. All these techniques confirm the formation of crystalline nanoparticles. The cytotoxic effect of I...
July 6, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28678207/in-vitro-testing-of-crude-natural-plant-extracts-from-costa-rica-for-their-ability-to-boost-innate-immune-cells-against-staphylococcus-aureus
#9
Ragheda Yaseen, Katja Branitzki-Heinemann, Hani Moubasher, William N Setzer, Hassan Y Naim, Maren von Köckritz-Blickwede
The increasing occurrence of antibiotic-resistant Staphylococcus (S.) aureus tremendously limits the antibiotic-based treatment options; therefore, an open discussion of alternative treatment strategies is urgently needed. The use of naturally derived materials might become a more promising concept, not only as directly acting antimicrobials, but also for stimulation of the immune system. Costa Rican plant extracts were screened for their ability to enhance the antimicrobial activity of human blood-derived cells against S...
July 5, 2017: Biomedicines
https://www.readbyqxmd.com/read/28653916/biological-activities-of-allium-sativum-and-zingiber-officinale-extracts-on-clinically-important-bacterial-pathogens-their-phytochemical-and-ft-ir-spectroscopic-analysis
#10
Uzma Azeem Awan, Shaukat Ali, Amna Mir Shahnawaz, Irsa Shafique, Atiya Zafar, Muhammad Abdul Rauf Khan, Tahseen Ghous, Azhar Saleem, Saiqa Andleeb
The spread of bacterial infectious diseases is a major public threat. Herbs and spices have offered an excellent, important and useful source of antimicrobial agents against many pathological infections. In the current study, the antimicrobial potency of fresh, naturally and commercial dried Allium sativum and Zingiber officinale extracts had been investigated against seven local clinical bacterial isolates such as Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Staphylococcus aureus, Streptococcus pyogenes, Staphylococcus epidermidis, and Serratia marcesnces by the agar disc diffusion method...
May 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28653913/evaluation-of-anti-oxidative-antimicrobial-and-anti-diabetic-potential-of-adiantum-venustum-and-identification-of-its-phytochemicals-through-gc-ms
#11
Javerya Hamid, Dildar Ahmed, Abdul Waheed
The present study aimed to explore antioxidant, antimicrobial and anti-diabetic properties of the fern Adiantum venustum. The TPC (total phenolic content) of methanolic extract of the plant was 247.95±0.0007μg of Gallic acid equivalents per gram of dried extract (mg GAE/g). The highest TPC was in n-butanolic fraction, which was 981.45±0.1562mg GAE/g. Hexane fraction showed lowest TPC (256.95±0.0420mg GAE/g). Ethyl acetate fraction exhibited highest total flavonoid content (TFC), i.e., 62.0±0.050mg of Rutin equivalents per gram of sample...
May 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28642073/synthesis-of-biogenic-ag-pd-core-shell-nanoparticles-having-anti-cancer-anti-microbial-functions
#12
Wafa I Abdel-Fattah, M M Eid, Sh I Abd El-Moez, E Mohamed, Ghareib W Ali
Biogenic Ag@Pd core-shell nanoparticles were greenly synthesized within two plant extracts aiming at enhanced anticancer/bactericidal functions. These functions were verified for the two Pd@Ag biogenic core-shell nanoparticles (BCSnp) with constant Pd to several Ag contents. BCSnp were synthesized within two extracts of Almond nuts and Black Berry fruits, four samples each, through simple, low cost and echo friendly microwave route. The BCSnp Surface Plasmon Resonance (SPR) was detected via UV/visible spectrophotometer...
June 19, 2017: Life Sciences
https://www.readbyqxmd.com/read/28638874/the-use-of-plants-to-protect-plants-and-food-against-fungal-pathogens-a-review
#13
D S S Shuping, J N Eloff
BACKGROUND: Plant fungal pathogens play a crucial role in the profitability, quality and quantity of plant production. These phytopathogens are persistent in avoiding plant defences causing diseases and quality losses around the world that amount to billions of US dollars annually. To control the scourge of plant fungal diseases, farmers have used fungicides to manage the damage of plant pathogenic fungi. Drawbacks such as development of resistance and environmental toxicity associated with these chemicals have motivated researchers and cultivators to investigate other possibilities...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28630440/looking-to-nature-for-a-new-concept-in-antimicrobial-treatments-isoflavonoids-from-cytisus-striatus-as-antibiotic-adjuvants-against-mrsa
#14
Ana Cristina Abreu, Aline Coqueiro, Andi R Sultan, Nicole Lemmens, Hye Kyong Kim, Robert Verpoorte, Willem J B van Wamel, Manuel Simões, Young Hae Choi
The spread of multidrug-resistant Staphylococcus aureus strains, including methicillin-resistant S. aureus (MRSA), has shortened the useful life of anti-staphylococcal drugs enormously. Two approaches can be followed to address this problem: screening various sources for new leads for antibiotics or finding ways to disable the resistance mechanisms to existing antibiotics. Plants are resistant to most microorganisms, but despite extensive efforts to identify metabolites that are responsible for this resistance, no substantial progress has been made...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28627377/mikania-glomerata-sprengel-extract-and-its-major-compound-ent-kaurenoic-acid-display-activity-against-bacteria-present-in-endodontic-infections
#15
Dora Lúcia Carrara Moreti, Luís Fernando Leandro, Thaís da Silva Moraes, Monique Rodrigues Moreira, Rodrigo Cassio Sola Veneziani, Sergio Ricardo Ambrosio, Brenda Paula Figueiredo Almeida Gomes, Carlos Henrique Gomes Martins
The search for new, effective and safe antimicrobial compounds from plant sources has continued to play an important role in the maintenance of human health since ancient times. Such compounds can be used to help to eradicate microorganisms from the root canal system, preventing/healing periapical diseases. Mikania glomerata (Spreng.), commonly known as "guaco," is a native climbing plant from Brazil that displays a wide range of pharmacological properties. Many of its activities have been attributed to its phytochemical composition, which is mainly composed of diterpenes, such as ent-kaurenoic acid (KA)...
June 13, 2017: Anaerobe
https://www.readbyqxmd.com/read/28625148/affinity-crystallography-reveals-the-bioactive-compounds-of-industrial-juicing-byproducts-of-punica-granatum-for-glycogen-phosphorylase
#16
George A Stravodimos, Anastassia L Kantsadi, Anna Apostolou, Efthimios Kyriakis, Vassiliki-Nafsika Kafaski-Kanelli, Theodora G A Solovou, Pagona Gatzona, Panagiota Cv Liggri, Stavroula Theofanous, Vyron A Gorgogietas, Apostolia Kissa, Chariklia Psachoula, Demetra S M Chatzileontiadou, Angelos Lemonakis, Anna-Maria G Psarra, Vassiliki T Skamnaki, Serkos Haroutounian, Demetres D Leonidas
BACKGROUND: Glycogen phosphorylase (GP) is a pharmaceutical target for the discovery of new antihyperglycaemic agents. Punica granatum is a well-known plant for its potent antioxidant and antimicrobial activities but so far has not been examined for antihyperglycaemic activity. OBJECTIVE: To examine the inhibitory potency of eighteen polyphenolic extracts obtained from Punica granatum fruits and industrial juicing byproducts against GP and discover their most bioactive ingredients...
June 18, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/28622602/assessment-of-the-phenolic-profile-antimicrobial-activity-and-oxidative-stability-of-transgenic-perilla-frutescens-l-overexpressing-tocopherol-methyltransferase-%C3%AE-tmt-gene
#17
Bimal Kumar Ghimire, Chang Yeon Yu, Ill-Min Chung
This study evaluated the effects of enhanced concentrations of α-tocopherol and phenolic compounds on the resistance and stability of Perilla oil in transgenic Perilla frutescens plants against various tested pathogenic bacteria by over-expressing the γ-tmt gene. The concentration of phenolic compounds in the non-transgenic samples was 9313.198 ± 18.887 μg g(-1) dry weight (DW), whereas the total concentration of the transgenic samples ranged from 9118.015 ± 18.822 to 10527.612 ± 20.411 μg g(-1) DW...
June 7, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28606081/isolation-of-anti-mycobacterial-compounds-from-curtisia-dentata-burm-f-c-a-sm-curtisiaceae
#18
Victor O Fadipe, Nkoana I Mongalo, Andy R Opoku, Preachers M Dikhoba, Tshepiso J Makhafola
BACKGROUND: Tuberculosis is counted amongst the most infectious and lethal illnesses worldwide and remains one of the major threats to human health. The aim of the current study was to isolate and characterize anti-mycobacterial compounds present in Curtisia dentata (Burm.f.) C.A.Sm , a medicinal plant reportedly used in the treatment of tuberculosis, stomach ailments and sexually transmitted infections. METHODS: The bioassay guided principle was followed to isolate the anti-mycobacterial compounds...
June 12, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28604361/synthetic-scaffolds-with-full-pore-interconnectivity-for-bone-regeneration-prepared-by-supercritical-foaming-using-advanced-biofunctional-plasticizers
#19
Aurelio Salerno, Sara Diéguez, Luis Diaz-Gomez, Jose Luis Gomez-Amoza, Beatriz Magariños, Angel Concheiro, Concepcion Domingo, Carmen Alvarez-Lorenzo, Carlos A García-González
Supercritical foaming allows for the solvent-free processing of synthetic scaffolds for bone regeneration. However, the control on the pore interconnectivity and throat pore size with this technique still needs to be improved. The use of plasticizers may help to overcome these limitations. Eugenol, a GRAS natural compound extracted from plants, is proposed in this work as an advanced plasticizer with bioactive properties. Eugenol-containing poly(ɛ-caprolactone) (PCL) scaffolds were obtained by supercritical foaming (20...
June 12, 2017: Biofabrication
https://www.readbyqxmd.com/read/28597160/purification-and-characterization-of-a-newly-serine-protease-inhibitor-from-rhamnus-frangula-with-potential-for-use-as-therapeutic-drug
#20
Abir Ben Bacha, Ikram Jemel, Nadine M S Moubayed, Imen Ben Abdelmalek
Protease inhibitors from plants are well known to be potent inhibitors of the growth of bacteria, fungi, and even certain viruses which make them excellent candidates for use as the lead compounds for the development of novel antimicrobial agents for applications in medicine. In this study, Rhamnus frangula was selected as a protease inhibitor source. The maximum recovery of the protease inhibitor against trypsin was recorded in the crude extract made in 0.1 M phosphate buffer (pH 7.0) and isolated from the mature leaves...
June 2017: 3 Biotech
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