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Antimicrobial effect plant extract

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https://www.readbyqxmd.com/read/29655694/tatanan-a-from-the-acorus-calamus-l-root-inhibited-dengue-virus-proliferation-and-infections
#1
Xingang Yao, Yun Ling, Songxin Guo, Wenyu Wu, Shijun He, Qing Zhang, Min Zou, Kutty Selva Nandakumar, Xiaoguang Chen, Shuwen Liu
BACKGROUND: Acorus calamus l. (Acoraceae) is a well-known traditional Chinese medicinal plant, whose root are historically mainly used to treat neurodegenerative diseases, and for cholera treatment. This datum strongly indicates the antimicrobial activity of A. calamus. PURPOSE: Our goal is to find the active constituents of A. calamus to treat dengue virus (DENV) infections, and to study the effects and mechanisms of these active substances. METHODS: The root of A...
March 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29649123/phytochemical-properties-and-nutrigenomic-implications-of-yacon-as-a-potential-source-of-prebiotic-current-evidence-and-future-directions
#2
REVIEW
Yang Cao, Zheng Feei Ma, Hongxia Zhang, Yifan Jin, Yihe Zhang, Frank Hayford
The human gut is densely populated with diverse microbial communities that are essential to health. Prebiotics and fiber have been shown to possess the ability to modulate the gut microbiota. One of the plants being considered as a potential source of prebiotic is yacon. Yacon is an underutilized plant consumed as a traditional root-based fruit in South America. Yacon mainly contains fructooligosaccharides (FOS) and inulin. Therefore, it has bifidogenic benefits for gut health, because FOS are not easily broken down by digestive enzymes...
April 12, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29642523/tricycloalternarene-analogs-from-a-symbiotic-fungus-aspergillus-sp-d-and-their-antimicrobial-and-cytotoxic-effects
#3
Huawei Zhang, Ziping Zhao, Jianwei Chen, Xuelian Bai, Hong Wang
Bioassay-guided fractionation of the crude extract of fermentation broth of one symbiotic strain Aspergillus sp. D from the coastal plant Edgeworthia chrysantha Lindl. led to isolation of one new meroterpenoid, tricycloalternarene 14b ( 1 ), together with four known analogs ( 2 - 5 ), tricycloalternarenes 2b ( 2 ), 3a ( 3 ), 3b ( 4 ), and ACTG-toxin F ( 5 ). Their chemical structures were unambiguously established on the basis of NMR, mass spectrometry, and optical rotation data analysis, as well as by comparison with literature data...
April 9, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29619432/antibacterial-activity-of-dracontomelon-dao-extracts-on-methicillin-resistant-s-aureus-mrsa-and-e-coli-multiple-drug-resistance-mdr
#4
Yuniati Yuniati, Nurul Hasanah, Sjarif Ismail, Silvia Anitasari, Swandari Paramita
Background: Staphylococcus aureus , methicillin-resistant and Escherichia coli , multidrug-resistant included in the list of antibiotic-resistant priority pathogens from WHO. As multidrug-resistant bacteria problem is increasing, it is necessary to probe new sources for identifying antimicrobial compounds. Medicinal plants represent a rich source of antimicrobial agents. One of the potential plants for further examined as antibacterial is Dracontomelon dao (Blanco) Merr. & Rolfe. The present study designed to find the antibacterial activity of D...
2018: African Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29618924/bio-based-synthesis-of-silver-nanoparticles-from-orange-waste-effects-of-distinct-biomolecule-coatings-on-size-morphology-and-antimicrobial-activity
#5
Caio Henrique Nasi de Barros, Guilherme Crispim Faria Cruz, Willian Mayrink, Ljubica Tasic
Purpose: Despite the numerous reports on biological syntheses of silver nanoparticles (AgNPs), little is known about the composition of their capping agents, protein corona of plant extract-mediated synthesis, and their influence on the properties of AgNPs. Here, orange ( Citrus sinensis ) waste was utilized as a source of an extract for AgNP synthesis (the protein corona composition of which was elucidated), and also as a starting material for hesperidin and nanocellulose extraction, which were used for bio-based AgNP synthesis...
2018: Nanotechnology, Science and Applications
https://www.readbyqxmd.com/read/29618400/studies-on-antimicrobial-activity-and-kinetics-of-inhibition-by-plant-products-in-india-1990-2016
#6
Ramesh Kumar Sharma, Bhupendra Kumar Rana
The antimicrobial activity of herbal extracts or plant isolates has usually been evaluated in India using different antimicrobial susceptibility testing methods generally based on diffusion and dilution. There are different analytical approaches for the reliable evaluation of antimicrobial activity ascribed to medicinal plants against selected pathogenic microorganisms. Obtained results may provide scientific bases for the selective use of these natural plants as healing drugs, crop-protecting pesticides, or shelf-life-extending solutions...
April 4, 2018: Journal of AOAC International
https://www.readbyqxmd.com/read/29611658/antimicrobial-activity-of-some-plant-extracts-against-bacterial-pathogens-isolated-from-faeces-of-red-deer-cervus-elaphus
#7
S Gnat, B Majer-Dziedzic, A Nowakiewicz, A Trościańczyk, G Ziółkowska, W Jesionek, I Choma, R Dziedzic, P Zięba
Antibacterial activity is the most widely studied aspect of plant extracts. Antibiotics extensively produced and consumed in large quantities, have proved to be problematic due to various types of adverse effects. The development of bacterial resistance to currently available antibiotics has necessitated the search for new antibacterial agents. One of the alternative strategies for fighting antibiotic- resistant bacteria is the use of natural antimicrobial substances such as plant extracts. We tested the antimicrobial activity of nine extracts from different plants against pathogenic bacteria isolated from the faeces of red deer (Cervus elaphus)...
December 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29607320/antilisterial-effect-of-rosa-damascena-and-nymphaea-alba-in-mus-musculus
#8
Rida Batool, Asma Kalsoom, Iqra Akbar, Najma Arshad, Nazia Jamil
The present study was proposed to investigate the toxicological and prophylactic potential of ethanolic extracts of Rosa damascena and Nymphaea alba and their mixture in albino mice. For toxicity study, three different doses of plant extracts were orally administrated to three groups of mice for 14 successive days. Blood biochemistry and histological examinations of liver and kidney revealed that these extracts had no harmful effects up to 1000 mg/kg. To determine the prophylactic effects of Rosa damascena , Nymphaea alba , and their mixture, an infection model of Listeria monocytogenes was established in a pilot study...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29605650/evaluating-the-anti-biofilm-and-antibacterial-effects-of-juglans-regia-l-extracts-against-clinical-isolates-of-pseudomonas-aeruginosa
#9
Samaneh Dolatabadi, Hediyeh Nesari Moghadam, Maasoumeh Mahdavi-Ourtakand
OBJECTIVE: Pseudomonas aeruginosa, an opportunistic pathogen, can cause serious health problems and produces several virulence factors. The most important of these factors is biofilm. Many studies suggest administration of new generation of antibiotics, as P. aeruginosa biofilm has developed high resistance to antimicrobial drugs. Emergence of multidrug resistant (MDR) strains has resulted in screening biofilm inhibitors from natural products or modified from natural compounds. To test this hypothesis, we evaluated the inhibitory effects (antibacterial and antibiofilm) of Juglans regia L...
March 29, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29592658/in-vitro-antibacterial-evaluation-of-terminalia-chebula-as-an-alternative-of-antibiotics-against-bovine-subclinical-mastitis
#10
Mukesh N Kher, Navin R Sheth, Vaibhav D Bhatt
The extent of subclinical mastitis in three breeds of cattle, Kankrej, Gir, and Crossbred, was performed at cattle farms in Anand town of Gujarat State, India. The prevalence of subclinical mastitis in crossbred cattle was higher compared to local breed of cattle. Causative agents identified using 16S rDNA polymerase chain reaction (PCR)-based molecular method were Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Bacillus megaterium. In vitro antibacterial activity of ethyl acetate extract of plant Terminalia chebula (Combretaceae) was checked by agar well diffusion method against four isolated and molecularly identified microorganisms...
March 28, 2018: Animal Biotechnology
https://www.readbyqxmd.com/read/29580507/study-of-two-stage-ohmic-hydro-extraction-of-essential-oil-from-artemisia-aucheri-boiss-antioxidant-and-antimicrobial-characteristics
#11
Rozita Mojtahed Zadeh Asl, Mehrdad Niakousari, Hadi Hashemi Gahruie, Mohammad Jamal Saharkhiz, Amin Mousavi Khaneghah
The effect of two-stage ohmic-assisted hydrodistillation (TSOH) on the extraction and characteristics of essential oils (EOs) from the Artemisia aucheri Boiss. was studied, and the results were compared to conventional hydrodistillation (HD). According to the results, the yield of EOs obtained through TSOH was almost 30% higher than those extracted by HD in nearly one-quarter of a time used by the HD. Scanning electron micrographs of A. aucheri leaves showed almost complete eruption of EO glands and their surrounding area in TSOH extraction method, hence achieving higher yield...
May 2018: Food Research International
https://www.readbyqxmd.com/read/29576774/comparison-of-antimicrobial-effect-of-ziziphora-tenuior-dracocephalum-moldavica-ferula-gummosa-and-prangos-ferulacea-essential-oil-with-chlorhexidine-on-enterococcus-faecalis-an-in-vitro-study
#12
Bahareh Nazemisalman, Surena Vahabi, Ali Yazdinejad, Fatemeh Haghghi, Mahsa Shabbuii Jam, Fatemeh Heydari
Background: Different irrigating solutions with high antimicrobial activity have been introduced for cleaning of the root canal system. However, effects of Prangos ferulacea (PF), Ziziphora tenuior (ZT), Dracocephalum moldavica (DM), and Ferula gummosa (FG) on oral and dental pathogens have not been extensively evaluated due to their optimal biocompatibility and insignificant side effects. The aim of this study was to evaluate the antibacterial effects of essential oils of mentioned plants on Enterococcus faecalis ...
March 2018: Dental Research Journal
https://www.readbyqxmd.com/read/29576039/performance-health-and-physiological-responses-of-newly-weaned-feedlot-cattle-supplemented-with-feed-grade-antibiotics-or-alternative-feed-ingredients
#13
K A de Souza, R F Cooke, K M Schubach, A P Brandão, T F Schumaher, I N Prado, R S Marques, D W Bohnert
With increased regulations regarding the use of feed-grade antimicrobials in livestock systems, alternative strategies to enhance growth and immunity of feedlot cattle are warranted. Hence, this experiment compared performance, health and physiological responses of cattle supplemented with feed-grade antibiotics or alternative feed ingredients during the initial 60 days in the feedlot. Angus×Hereford calves (63 steers+42 heifers) originating from two cow-calf ranches were weaned on day -3, obtained from an auction yard on day -2 and road-transported (800 km; 12 h) to the feedlot...
March 26, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29575111/epilobium-spp-pharmacology-and-phychemistry
#14
REVIEW
Annabella Vitalone, Olta Allkanjari
The Epilobium species and their extracts are very popular in folk medicine, for a wide range of applications. The purpose of this review is the analysis of the pharmacological properties of Epilobium spp, considering whether their effects (e.g., anti-inflammatory, antioxidant, antitumor, antimicrobial, analgesic, and antiandrogenic) could rationally justify the use of Epilobium as a treatment of numerous diseases. Even if numerous preclinical studies have been reported, randomized controlled clinical trials (for the evaluation of safety and efficacy), and eventually cost-effectiveness studies (to estimate the long-term cumulative costs), are still needed to confirm the usefulness of these medicinal plants in human diseases...
March 25, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29564534/green-synthesis-of-stereospermum-suaveolens-capped-silver-and-gold-nanoparticles-and-assessment-of-their-innate-antioxidant-antimicrobial-and-antiproliferative-activities
#15
Sijo Francis, Ebey P Koshy, Beena Mathew
Plant-extract mediated nanoparticles synthesis is a viable alternative to chemical reduction techniques. Here, we report the microwave-assisted rapid synthesis of silver and gold nanoparticles by the phytoreducer Stereospermum suaveolens for the first time. The formation of the nascent silver and gold nanoparticles is confirmed by their intense surface plasmon resonance peaks at 431 and 585 nm in UV-visible spectroscopy. The poly phenolic and alcoholic functional groups present in the aqueous root bark extract that performed the bioreduction processes have been detected using Fourier transform infrared spectroscopy...
March 21, 2018: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/29562669/synthesis-of-gold-nanoparticles-using-leaf-extract-of-ziziphus-zizyphus-and-their-antimicrobial-activity
#16
Alaa A A Aljabali, Yazan Akkam, Mazhar Salim Al Zoubi, Khalid M Al-Batayneh, Bahaa Al-Trad, Osama Abo Alrob, Alaaldin M Alkilany, Mourad Benamara, David J Evans
(1) Background: There is a growing need for the development of new methods for the synthesis of nanoparticles. The interest in such particles has raised concerns about the environmental safety of their production methods; (2) Objectives: The current methods of nanoparticle production are often expensive and employ chemicals that are potentially harmful to the environment, which calls for the development of "greener" protocols. Herein we describe the synthesis of gold nanoparticles (AuNPs) using plant extracts, which offers an alternative, efficient, inexpensive, and environmentally friendly method to produce well-defined geometries of nanoparticles; (3) Methods: The phytochemicals present in the aqueous leaf extract acted as an effective reducing agent...
March 19, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29552454/phytochemical-screening-and-biological-activity-of-mentha-%C3%A3-piperita-l-and-lavandula-angustifolia-mill-extracts
#17
Ersilia Alexa, Corina Danciu, Isidora Radulov, Diana Obistioiu, Renata Maria Sumalan, Adriana Morar, Cristina Adriana Dehelean
The present study aimed to investigate the phytochemical composition of Mentha  ×  piperita L. (MP) and Lavandula angustifolia Mill. (LA) extracts in terms of hydroxycinnamic acid (HCAs) content, in particular, caffeic (CA), p-cumaric (CU), ferulic (FE), and rosmarinic (RS) acids using LC-MS. Also, the in vitro antimicrobial effect against Staphylococcus aureus and the antiproliferative activity against two cancerous cell lines (A375 and MDA-MB-231) using the MTT assay were tested. The extracts were prepared using aromatic water which resulted from the extraction of oils from plants as extraction medium, with/without acid...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29522493/coupling-plant-derived-cyclotides-to-metal-surfaces-an-antibacterial-and-antibiofilm-study
#18
Pan Cao, Ying Yang, Fidelia Ijeoma Uche, Sarah Ruth Hart, Wen-Wu Li, Chengqing Yuan
Modification of metal surfaces with antimicrobial peptides is a promising approach to reduce bacterial adhesion. Here, cyclic peptides or cycloids, possessing remarkable stability and antimicrobial activities, were extracted and purified from Viola philippica Cav., and identified using mass spectrometry. Cyclotides were subsequently utilized to modify stainless steel surfaces via polydopamine-mediated coupling. The resulting cyclotide-modified surfaces were characterized by Fourier transform infrared (FTIR) spectroscopy and contact angle analysis...
March 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29509658/preliminary-study-of-the-potential-extracts-from-selected-plants-to-improve-surface-cleaning
#19
Ai Ting Vong, Hui Wen Chong, Vuanghao Lim
Environment hygiene is important for preventing infection and promoting a healthier environment in which to live or work. The goal of this study was to examine the antimicrobial effects of Citrus aurantifolia (key lime) juice and aqueous extracts of Cinnamomum iners (cinnamon) bark and Citrus hystrix (kaffir lime) leaves on the kinetic growth of Pseudomonas aeruginosa and methicillin resistance Staphylococcus aureus ( MRSA ). Antimicrobial activity was quantitatively evaluated using spectrophotometry and viable cell counts versus bacterial growth time...
March 6, 2018: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29504922/evaluation-of-in-vitro-antimicrobial-activity-of-artemisia-apiacea-h-and-scutellaria-baicalensis-g-extracts
#20
Huan Trinh, Youngchul Yoo, Kyung-Hwa Won, Hien T T Ngo, Jung-Eun Yang, Jin-Gyeong Cho, Sang-Won Lee, Ki-Young Kim, Tae-Hoo Yi
PURPOSE: In traditional Korean medicine, Artemisia apiacea H. (ART) and Scutellaria baicalensis G. (SCU) are combined for the treatment of malaria and other malaria-like diseases. Because SCU is well-known as an antibacterial agent, the antimicrobial effect of a mixture of ART and SCU was investigated. METHODOLOGY: Plant samples were purchased from Kyungdong mart and extracted with 70 % ethanol. The in vitro antimicrobial activity of ART and SCU against pathogenic fungi (Aspergillus niger, Aspergillus oryzae, Candida albicans, Candida tropicalis and Candida glabrata), Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus) was evaluated using a broth microdilution assay, modified-disc diffusion and agar dilution methods with further CH2Cl2-fractionated ART, SCU and a mixture of ART/SCU (at a ratio of 3 : 5) (THAN-1)...
March 5, 2018: Journal of Medical Microbiology
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