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Antimicrobial activity plant extract

Bashir A Lone, M Z Chishti, Fayaz Ahmad Bhat, Hidayatullah Tak, Suhaib A Bandh, Abida Khan
The objective of this study was to evaluate the anthelmintic, antimicrobial and antioxidant activities of Chenopodium album against gastrointestinal nematodes of sheep and some pathogenic microbes. A worm motility inhibition assay was used for in vitro study, and a faecal egg count reduction assay was used for an in vivo study. Various concentrations ranging from 100 to 500 μg/ml of the extract were subjected to antimicrobial screening by disc diffusion method against four selected bacterial (Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas multocida and Escherichia coli) and two fungal (Aspergillus flavus and Candida albicans) strains in order to estimate the medicinal potential of the herb...
July 22, 2017: Tropical Animal Health and Production
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
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
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
Amalia Di Petrillo, Antonella Fais, Francesca Pintus, Celestino Santos-Buelga, Ana M González-Paramás, Vincenzo Piras, Germano Orrù, Antonello Mameli, Enzo Tramontano, Aldo Frau
BACKGROUND: Many plants have been used in traditional medicine for their antibacterial, antifungal, antiprotozoal, antiviral, antidiarrhoeal, analgesic, antimalarial, antioxidant, anti-inflammatory and anticancer activities. In order to find novel antimicrobial and antiviral agents, the aim of the present study was the evaluation of the antibacterial and antibiofilm susceptibility of Asphodelus microcarpus leaves extract. Moreover, the antiviral activity and the phytochemical composition of the active extract were also determined...
July 14, 2017: BMC Microbiology
Olga Sermukhamedova, Krzysztof Kamil Wojtanowski, Jarosław Widelski, Izabela Korona-Głowniak, Hosam O Elansary, Zuriyadda Sakipova, Anna Malm, Kazimierz Głowniak, Krystyna Skalicka-Woźniak
An HPLC quadrupole time-of-flight (Q-TOF) MS method was developed for the identification of secondary metabolites in Leonurus turkestanicus V.I. Krecz. et Kuprian. Ethanolic and chloroform extracts from the plant’s aerial parts were tested. A total of 16 compounds (iridoid glycosides, phenylpropanoids, flavonoids, and nitrogen-containing compounds, as well as diterpene acetate derivatives) were identified and tentatively characterized based on (or using) their retention times and UV and Q-TOF-MS data...
July 13, 2017: Journal of AOAC International
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
Hanène Ben Miled, Mariem Saada, Ines Jallali, Zaineb Ben Barka, Mounira Tlili, Hichem Alimi, Mohsen Sakly, Khémais Ben Rhouma, Manef Abderrabba, Hafedh Abdelmelek, Olfa Tebourbi, Riadh Ksouri
Rhus species are known in traditional medicine for their therapeutic virtue and their extracts showed numerous important properties including antimalarial, antimicrobial, antiviral, and hypoglycemic and anticonvulsant activities. Rhus tripartitum (Ucria) is a medicinal plant widely used in Tunisia folk medicine against chronic diarrhea and gastric ulcer. This study was designed to examine in vitro and ex vivo antioxidant, anti-inflammatory and anticancer activities of four extracts of Rhus tripartitum root cortex with increasing solvent polarity (hexane, dichloromethane, methanol and water)...
2017: EXCLI journal
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
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
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
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
Fabyola Amaral da Silva Sá, Joelma Abadia Marciano de Paula, Pierre Alexandre Dos Santos, Leandra de Almeida Ribeiro Oliveira, Gerlon de Almeida Ribeiro Oliveira, Luciano Morais Lião, José Realino de Paula, Maria do Rosário Rodrigues Silva
This work describes the isolation and structural elucidation of compounds from the leaves of Myrcia tomentosa (Aubl.) DC. (goiaba-brava) and evaluates the antimicrobial activity of the crude extract, fractions and isolated compounds against bacteria and fungi. Column chromatography was used to fractionate and purify the extract of the M. tomentosa leaves and the chemical structures of the compounds were determined using spectroscopic techniques. The antibacterial and antifungal activities were assessed using the broth microdilution method...
July 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Merline Namekong Djimeli, Siméon Pierre Chegaing Fodouop, Guy Sedar Singor Njateng, Charles Fokunang, Donald Sedric Tala, Fabrice Kengni, Donatien Gatsing
BACKGROUND: A. cordifolia is a plant widely used in Africa to solve many health problems. In Cameroon, it is used in the treatment of urogenital infections. As a continuation of our search for pharmacologically active agents from natural sources, the antimicrobial activity of A. cordifolia leaf extracts against E. coli and the toxicity of this extract were investigated. METHODS: The antibacterial activity of the aqueous extract from leaves of Alchornea cordifolia was carried out in vitro on Escherichia coli, as well as in vivo on E...
July 4, 2017: BMC Complementary and Alternative Medicine
Mehdi Teymouri, Ardalan Alizadeh
The aerial parts of wild and cultivated Mentha mozaffarianii Jamzad were collected at full flowering stage from two provinces (Hormozgan and Fars) of Iran. The essential oils were extracted by a Clevenger approach and analysed using GC and GC-MS. The main components in wild plants were piperitenone (33.85%), piperitone (21.18%), linalool (6.89%), pulegone (5.93%), 1, 8.cineole (5.49%), piperitenone oxide (5.17%) and menthone (4.69%) and in cultivated plants, cis-piperitone epoxide (28.89%), linalool (15.36%), piperitone (11...
June 28, 2017: Natural Product Research
Sajjad Hussain, Ghulam Murtaza, Ansar Mehmood, Rizwana Aleem Qureshi
The aim of present was to document indigenous knowledge of medicinal plants traditionally used by inhabitants of Rawalakot Azad Kashmir and to screen selected medicinal plants for their antibacterial potential. Several field surveys were conducted to document indigenous knowledge of medicinal plants through interviews from local inhabitants during 2010-2013. During the study, 58 plant species, belonging to 37 families, were identified and their medicinal uses were recorded. Ethnobotanical data indicates that inhabitants of Rawalakot use medicinal plant mainly for the treatment of stomach, liver and sexual disorders...
May 2017: Pakistan Journal of Pharmaceutical Sciences
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
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
Anwar Ali Shad, - Zakirudin, Jehan Bakht, Saleem Jan
The present paper investigates antioxidant, antimicrobial and photochemical screening different extracts of Fagonia olivieri. Analysis of the data indicated that the subject plant contained a good amount of flavonoids, tannins, saponins, terpenoids and steroids. Maximum concentrations of phenolic compounds was found in methanol fraction (29.0±6.12 mg GAE/g) while minimum (22.10±6.31mg GAE/g) in methylated spirit fraction. Similarly, ethanol fraction contained higher concentration of flavonoid content (135...
May 2017: Pakistan Journal of Pharmaceutical Sciences
Prashant Y Mali, Shital S Panchal
The present review is intended to provide information on botany, ethnomedicinal uses, phytochemistry and biological activities of various parts of Euphorbia neriifolia (E. neriifolia). E. neriifolia has several ethnomedicinal uses. The latex of E. neriifolia is used as laxative, purgative, rubefacient, carminative and expectorant as well as in treatment of whooping cough, gonorrhoea, leprosy, asthma, dyspepsia, jaundice, enlargement of the spleen, tumours, stone in the bladder, abdominal troubles and leucoderma...
May 2017: Asian Pacific Journal of Tropical Medicine
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