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Antimicrobial activity plant extract

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https://www.readbyqxmd.com/read/27912884/synergism-of-coumarins-from-the-chinese-drug-zanthoxylum-nitidum-with-antibacterial-agents-against-methicillin-resistant-staphylococcus-aureus-mrsa
#1
Guo-Ying Zuo, Chun-Juan Wang, Jun Han, Yu-Qing Li, Gen-Chun Wang
BACKGROUND: Methicillin-resistant Staphylococcus aureus (MRSA) poses a serious therapeutic challenge in current clinic and new drug development. Natural coumarins have diverse bioactivities and the potential of resistance modifying effects. PURPOSE: This study is to present in-depth evaluations of in vitro antimicrobial activities of four natural coumarins 5-geranyloxy-7-methoxycoumarin (Gm, 1), (5,7-dimethoxy-8-prenyloxycoumarin (artanin, Ar, 2)), isopimpinellin (Is, 3) and phellopterin (Ph, 4) from Zanthoxylum nitidum (Roxb...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27910164/hplc-uv-and-lc-ms-analyses-of-acylquinic-acids-in-geigeria-alata-dc-oliv-hiern-and-their-contribution-to-antioxidant-and-antimicrobial-capacity
#2
Dimitrina Zheleva-Dimitrova, Reneta Gevrenova, Maya M Zaharieva, Hristo Najdenski, Silviya Ruseva, Valentin Lozanov, Vessela Balabanova, Sakina Yagi, Georgi Momekov, Vanio Mitev
INTRODUCTION: Geigeria alata is a traditional plant used in Sudanese folk medicine for treatment of diabetes, cough, epilepsy and intestinal complaints. OBJECTIVE: To analyze phenolic acids in Geigeria alata roots and leaves and to evaluate their antioxidant and antimicrobial activities. METHODOLOGY: Phenolic acids in the aqueous-methanol extracts were identified by LC-MS. Major compounds were isolated using low-pressure liquid chromatography...
December 1, 2016: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/27907185/antioxidant-antimicrobial-and-cytotoxic-properties-as-well-as-the-phenolic-content-of-the-extract-from-hancornia-speciosa-gomes
#3
Uilson P Santos, Jaqueline F Campos, Heron Fernandes V Torquato, Edgar Julian Paredes-Gamero, Carlos Alexandre Carollo, Leticia M Estevinho, Kely de Picoli Souza, Edson Lucas Dos Santos
Hancornia speciosa Gomes (Apocynaceae) is a fruit tree, popularly known as mangabeira, and it is widely distributed throughout Brazil. Several parts of the plant are used in folk medicine, and the leaf and bark extracts have anti-inflammatory, antihypertensive, antidiabetic, and antimicrobial properties. In this study, we investigated the chemical composition of the ethanolic extract of Hancornia speciosa leaves (EEHS) and its antioxidant, antimicrobial, and cytotoxic activities as well as the mechanisms involved in cell death...
2016: PloS One
https://www.readbyqxmd.com/read/27906147/biogenic-synthesis-of-silver-nanoparticles-from-cassia-fistula-linn-in-vitro-assessment-of-their-antioxidant-antimicrobial-and-cytotoxic-activities
#4
Yugal Kishore Mohanta, Sujogya Kumar Panda, Kunal Biswas, Abiral Tamang, Jaya Bandyopadhyay, Debashis De, Dambarudhar Mohanta, Akshaya Kumar Bastia
The present study reports on biogenic-synthesised silver nanoparticles (AgNPs) derived by treating Ag ions with an extract of Cassia fistula leaf, a popular Indian medicinal plant found in natural habitation. The progress of biogenic synthesis was monitored time to time using a ultraviolet-visible spectroscopy. The effect of phytochemicals present in C. fistula including flavonoids, tannins, phenolic compounds and alkaloids on the homogeneous growth of AgNPs was investigated by Fourier-transform infrared spectroscopy...
December 2016: IET Nanobiotechnology
https://www.readbyqxmd.com/read/27889244/medicinal-uses-chemistry-and-pharmacology-of-dillenia-species-dilleniaceae
#5
REVIEW
Carla W Sabandar, Juriyati Jalil, Norizan Ahmat, Nor-Ashila Aladdin
The genus Dillenia is comprised of about 100 species of evergreen and deciduous trees or shrubs of disjunct distribution in the seasonal tropics of Madagascar through South and South East Asia, Malaysia, North Australia, and Fiji. Species from this genus have been widely used in medicinal folklore to treat cancers, wounds, jaundice, fever, cough, diabetes mellitus, and diarrhea as well as hair tonics. The plants of the genus also produce edible fruits and are cultivated as ornamental plants. Flavonoids, triterpenoids, and miscellaneous compounds have been identified in the genus...
November 23, 2016: Phytochemistry
https://www.readbyqxmd.com/read/27888048/breaking-the-resistance-of-escherichia-coli-antimicrobial-activity-of-berberis-lycium-royle
#6
Tauseef Ahmad Malik, Azra N Kamili, M Z Chishti, Shazia Ahad, Mudasir A Tantry, P R Hussain, R K Johri
The antimicrobial activity of root bark of Berberis lycium and its principal component berberine was tested against a panel of microbial strains using agar well diffusion test and further analyzed using micro-broth dilution method. Preliminary analysis, on the basis of zone of Inhibition (ZOI) showed that the methanolic extract of B. lycium was highly effective against Escherichia coli (ZOI 41 ± 1 mm). Among the bacterial strains E. coli was found to be most susceptible and among fungi Candida albicans was the most susceptible for berberine as well as the crude methanolic extract of the plant...
November 23, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27885623/shape-and-size-controlled-synthesis-of-silver-nanoparticles-using-aloe-vera-plant-extract-and-their-antimicrobial-activity
#7
Kaliyaperumal Logaranjan, Anasdass Jaculin Raiza, Subash C B Gopinath, Yeng Chen, Kannaiyan Pandian
Biogenic synthesis of silver nanoparticles (AgNP) was performed at room temperature using Aloe vera plant extract in the presence of ammoniacal silver nitrate as a metal salt precursor. The formation of AgNP was monitored by UV-visible spectroscopy at different time intervals. The shape and size of the synthesized particle were visualized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations. These results were confirmed by X-ray powder diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) analyses and further supported by surface-enhanced Raman spectroscopy/Raman scattering (SERS) study...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27881119/antibacterial-and-antifungal-potentials-of-the-solvents-extracts-from-eryngium-caeruleum-notholirion-thomsonianum-and-allium-consanguineum
#8
Abdul Sadiq, Sadiq Ahmad, Rahmat Ali, Fawad Ahmad, Sajjad Ahmad, Anwar Zeb, Muhammad Ayaz, Farhat Ullah, Abu Nasar Siddique
BACKGROUND: Herbal medicines have long been used for various ailments in various societies and natural bioactive compounds are gaining more and more importance due to various factors. In this context, three plant species i.e., Eryngium caeruleum, Notholirion thomsonianum and Allium consanguineum have been aimed for the scientific verification of their purported traditional uses against various infectious diseases. METHODS: In this study, three plants were assayed for antibacterial and antifungal potentials...
November 24, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27876335/globularia-alypum-methanolic-extract-improves-burn-wound-healing-process-and-inflammation-in-rats-and-possesses-antibacterial-and-antioxidant-activities
#9
Zohra Ghlissi, Rim Kallel, Assaad Sila, Bahira Harrabi, Rim Atheymen, Khaled Zeghal, Ali Bougatef, Zouheir Sahnoun
Burns are known as one of the most common and destructive forms of injury with a vast spectrum of consequences. Despite the discovery of various antibacterial and antiseptic agents, burn wound healing still has remained a challenge to modern medicine. Plants have been considered as potential agents for prevention and treatment of disorders in recent years. Globularia alypum L. (GA) is widely used in folk medicine against skin diseases and abscesses, however there is no scientific evidence justifying its use...
November 19, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27866613/a-facile-and-green-strategy-for-the-synthesis-of-au-ag-and-au-ag-alloy-nanoparticles-using-aerial-parts-of-r-hypocrateriformis-extract-and-their-biological-evaluation
#10
S S Godipurge, S Yallappa, Naveen J Biradar, J S Biradar, B L Dhananjaya, Gajanan Hegde, K Jagadish, Gurumurthy Hegde
A facile and green strategy is reported here to synthesize gold (Au), silver (Ag) and gold-silver (Au-Ag) alloy nanoparticles (NPs) through bio-reduction reactions of aqueous corresponding metal precursors mediated by extracts of aerial parts of R. hypocrateriformis, which act as both reducing and stabilizing agents, under microwave irradiation. UV-vis spectrophotometer, XRD, FT-IR, FESEM/TEM, TGA and EDAX analysis were used to characterize the obtained NPs. The formation of NPs is evident from their surface plasmon resonance peak observed at λmax=∼550, 450 and 500nm for Au, Ag and Au-Ag alloy NPs respectively...
December 2016: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/27859484/gram-microorganisms-dna-polymerase-inhibition-antibacterial-and-chemical-properties-of-fruit-and-leaf-extracts-of-sorbus-acuparia-and-sorbus-caucasica-var-yaltirikii
#11
Halbay Turumtay, Ahmet Midilli, Emine Akyuz Turumtay, Adem Demir, Emine Kılıçkaya Selvi, Emine Esra Budak, Havva Er, Fatih Kocaimamoglu, Hüseyin Baykal, Ali Osman Belduz, Vagif Atamov, Cemal Sandallı
Investigation of novel plant-based agents might provide alternative antibiotics and thus fight antibiotic resistance. Here, we measured the ability of fruit and leaf extracts of Sorbus aucuparia (Sauc) and endemic Sorbus caucasica var. yaltirikii (Scau) to inhibit non-replicative (Klenow Fragment-KF and Bacillus Large Fragment-BLF) and replicative (DnaE and PolC) bacterial DNA polymerases along with their antimicrobial, DPPH free radical scavenging activity (RSA), and chemical contents by total phenolic content (TPC) and HPLC-DAD analysis...
November 17, 2016: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/27856271/antimicrobial-antitrypanosomal-and-antibiofilm-activity-of-equisetum-hyemale
#12
Camilla Filippi Dos Santos Alves, Pauline Cordenonsi Bonez, Marcia de Ebling de Souza, Ritiel Corrêa da Cruz, Aline Augusti Boligon, Mariana Piana, Thiele Facim Brum, Grazielle Guidolin Rossi, Roberta da Silva Jesus, Thirssa Helena Grando, Silvia Gonzalez Monteiro, Marli Matiko Anraku de Campos, Janice Luering Giongo, Roberto Christ Vianna Santos
This study evaluates, for the first time, the antibiofilm, antimicrobial and antiparasitic potential of crude extract and fractions of stems of Equisetum hyemale against several infectious agents (bacteria, fungi, Mycobacterium and Trypanosomes) by broth microdilution technique and investigates the phenolic composition of the plant by high performance liquid chromatography. The crude extract and fractions showed antimicrobial activity, as they were capable of inhibiting the growth of bacteria in minimal inhibitory concentrations (MICs) ranging from 52...
November 14, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27855495/pharmacological-importance-characterization-and-applications-of-gold-and-silver-nanoparticles-synthesized-by-panax-ginseng-fresh-leaves
#13
Priyanka Singh, Hina Singh, Sungeun Ahn, Verónica Castro-Aceituno, Zuly Jiménez, Shakina Yesmin Simu, Yeon Ju Kim, Deok Chun Yang
Previously, we showed the rapid and eco-friendly synthesis of gold and silver nanoparticles within 3 and 45 min by fresh leaves extract of herbal medicinal plant Panax ginseng. In addition, we characterized the nanoparticles in terms of shape, size, morphology and stability by FE-TEM, EDX, elemental mapping, SEAD, XRD and particles size analysis. In addition of this, we showed their antimicrobial, anti-coagulant, and biofilm inhibition activity of nanoparticles. Continuing our previous study, here we highlight the further characterization and biomedical applications of P...
November 18, 2016: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/27847500/a-genetic-and-chemical-perspective-on-symbiotic-recruitment-of-cyanobacteria-of-the-genus-nostoc-into-the-host-plant-blasia-pusilla-l
#14
Anton Liaimer, John B Jensen, Elke Dittmann
Liverwort Blasia pusilla L. recruits soil nitrogen-fixing cyanobacteria of genus Nostoc as symbiotic partners. In this work we compared Nostoc community composition inside the plants and in the soil around them from two distant locations in Northern Norway. STRR fingerprinting and 16S rDNA phylogeny reconstruction showed a remarkable local diversity among isolates assigned to several Nostoc clades. An extensive web of negative allelopathic interactions was recorded at an agricultural site, but not at the undisturbed natural site...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27844243/analysis-of-chemical-constituents-antimicrobial-and-anticancer-activities-of-dichloromethane-extracts-of-sordariomycetes-sp-endophytic-fungi-isolated-from-strobilanthes-crispus
#15
Elaine Chin Jinfeng, Mohamed Ikhtifar Mohamad Rafi, Khoo Chai Hoon, Ho Kok Lian, Cheah Yoke Kqueen
Plants are primary source of natural product drugs. However, with every new bioactive molecule reported from a plant source, there follows reports of endangered status or even extinction of a medicinally important plant due to over-harvesting. Hence, the attention turned towards fungi namely the endophytes, which reside within medicinally important plants and thus may have acquired their medicinal properties. Strobilanthes crispus is a traditional medicinal plant which has been used traditionally to treat kidney stones, diabetes, hypertension and cancer as well as having antimicrobial activities...
January 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27843246/evaluation-and-comparison-of-the-antibacterial-activity-against-streptococcus-mutans-of-grape-seed-extract-at-different-concentrations-with-chlorhexidine-gluconate-an-in-vitro-study
#16
REVIEW
Milan Swadas, Bhavna Dave, Soham M Vyas, Nupur Shah
INTRODUCTION: Streptococcus mutans has been implicated as primary microorganisms which cause dental caries in humans. There has been an increased interest in the therapeutic properties of some medicinal plants and natural compounds which have demonstrated antibacterial activities. Grape is one of the plants of this group which contains tannin and polyphenolic compound. AIM: To evaluate and compare antibacterial activity of grape seed extract at different concentrations with chlorhexidine gluconate against S...
July 2016: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/27842527/pharmacological-effects-of-the-phytochemicals-of-anethum-sowa-l-root-extracts
#17
Md Moshfekus Saleh-E-In, Nasim Sultana, Md Nur Hossain, Sayeema Hasan, Md Rabiul Islam
BACKGROUND: Anethum sowa L. is widely used as an important spice and traditional medicinal plants to treat various ailments. On the basis of scientific ethnobotanical information, this study was undertaken to evaluate the antioxidant, antimicrobial and cytotoxic activity of the crude extracts of Anethum sowa L. roots as well as to identify the classes of phytochemicals by chemical tests. METHODS: The antioxidant potential of the extracts was ascertained with the stable organic free radical (2, 2-diphenyl-1-picryl-hydrazyl)...
November 14, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27835979/pharmacologically-active-flavonoids-from-the-anticancer-antioxidant-and-antimicrobial-extracts-of-cassia-angustifolia-vahl
#18
Shabina Ishtiaq Ahmed, Muhammad Qasim Hayat, Muhammad Tahir, Qaisar Mansoor, Muhammad Ismail, Kristen Keck, Robert B Bates
BACKGROUND: Cassia angustifolia Vahl. (commonly known as senna makkai or cassia senna), native to Saudi Arabia, Egypt, Yemen and also extensively cultivated in Pakistan, is a medicinal herb used traditionally to cure number of diseases like liver diseases, constipation, typhoid, cholera etc. This study was conducted to evaluate the in-vitro antimicrobial, antioxidant and anticancer assays and phytochemical constituents of aqueous and organic extracts of C. angustifolia leaves. METHODS: The antimicrobial activities of C...
November 11, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27813588/purification-biochemical-characterization-and-antimicrobial-activity-of-a-new-lipid-transfer-protein-from-coffea-canephora-seeds
#19
G C V Bard, U Zottich, T A M Souza, S F F Ribeiro, G B Dias, S Pireda, M Da Cunha, R Rodrigues, L S Pereira, O L T Machado, A O Carvalho, V M Gomes
Coffee, an agronomical crop of great economic importance, is also among the most commonly traded commodities in worldwide markets. Antimicrobial peptides, which play a role in plant defense, have been identified and isolated particularly from seeds. We isolated and immunolocalized Cc-LTP2, a new lipid transfer protein (LTP) from Coffea canephora seeds. We report its antimicrobial activity against various phytopathogenic fungi of economic importance, and against the bacterium Xanthomonas euvesicatoria. Peptides from C...
October 24, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27808510/phenanthrenes-from-juncus-inflexus-with-antimicrobial-activity-against-methicillin-resistant-staphylococcus-aureus
#20
Barbara Tóth, Erika Liktor-Busa, Norbert Kúsz, Ádám Szappanos, Attila Mándi, Tibor Kurtán, Edit Urbán, Judit Hohmann, Fang-Rong Chang, Andrea Vasas
The present study has focused on an investigation of the antibacterial effects of Juncus inflexus and the isolation and identification of its active compounds. Eleven phenanthrenes were isolated from a methanolic extract of the roots. Four compounds (jinflexins A-D, 1-4) are new natural products, while seven phenanthrenes [juncuenins A (5), B (6), and D (8), juncusol (7), dehydrojuncuenins A (9) and B (11), and dehydrojuncusol (10)] were isolated for the first time from the plant. Jinflexin D (4) is a dimer with an unprecedented heptacyclic ring system...
November 3, 2016: Journal of Natural Products
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