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Antimicrobial activity plant extract

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https://www.readbyqxmd.com/read/28317483/a-critical-review-of-bioactive-food-components-and-of-their-functional-mechanisms-biological-effects-and-health-outcomes
#1
Rosa Pérez-Gregorio, Jesús Simal-Gándara
BACKGROUND: Eating behaviours are closely related to some medical conditions potentially leading to death such as cancer, cardiovascular disease and diabetes. Healthy eating practices, maintaining a normal weight, and regular physical activity could prevent up to 80% of coronary heart disease, 90% of type-2 diabetes and one-third of all cancers[1]. METHOD: Over the last two decades, the food industry has invested much effort in research and development of healthier, more nutritious foods...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28303220/anemone-medicinal-plants-ethnopharmacology-phytochemistry-and-biology
#2
REVIEW
Da-Cheng Hao, Xiaojie Gu, Peigen Xiao
The Ranunculaceae genus Anemone (order Ranunculales), comprising more than 150 species, mostly herbs, has long been used in folk medicine and worldwide ethnomedicine. Various medicinal compounds have been found in Anemone plants, especially triterpenoid saponins, some of which have shown anti-cancer activities. Some Anemone compounds and extracts display immunomodulatory, anti-inflammatory, antioxidant, and antimicrobial activities. More than 50 species have ethnopharmacological uses, which provide clues for modern drug discovery...
March 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/28298686/chemical-composition-and-biological-properties-of-satureja-avromanica-maroofi
#3
Elham Abdali, Shima Javadi, Maryam Akhgari, Seyran Hosseini, Dara Dastan
Satureja avromanica is an indigenous plant which is frequently used as a spice in Avraman-Kurdistan region of Iran. The present study aimed to investigate the chemical composition, antimicrobial and antioxidant properties of the S. avromanica. In addition, rosmarinic acid and total phenolic content of S. avromanica was assessed by spectrophotometric method and HPTLC. The essential oil and methanolic extract were isolated by hydrodistillation and maceration methods, respectively. A total of 32 compounds representing 98...
March 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28293229/fungal-root-microbiome-from-healthy-and-brittle-leaf-diseased-date-palm-trees-phoenix-dactylifera-l-reveals-a-hidden-untapped-arsenal-of-antibacterial-and-broad-spectrum-antifungal-secondary-metabolites
#4
Fedia B Mefteh, Amal Daoud, Ali Chenari Bouket, Faizah N Alenezi, Lenka Luptakova, Mostafa E Rateb, Adel Kadri, Neji Gharsallah, Lassaad Belbahri
In this study, we aimed to explore and compare the composition, metabolic diversity and antimicrobial potential of endophytic fungi colonizing internal tissues of healthy and brittle leaf diseased (BLD) date palm trees (Phoenix dactylifera L.) widely cultivated in arid zones of Tunisia. A total of 52 endophytic fungi were isolated from healthy and BLD roots of date palm trees, identified based on internal transcribed spacer-rDNA sequence analysis and shown to represent 13 species belonging to five genera. About 36...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28281322/chemical-composition-antibacterial-antibiofilm-and-synergistic-properties-of-essential-oils-from-eucalyptus-globulus-labill-and-seven-mediterranean-aromatic-plants
#5
Maria Vieira, Lucinda J Bessa, M Rosário Martins, Sílvia Arantes, António P S Teixeira, Ângelo Mendes, Paulo Martins da Costa, Anabela D F Belo
Essential oils (EOs) from Eucalyptus globulus Labill. ssp. globulus and from Mediterranean autochthonous aromatic plants - Thymus mastichina L., Mentha pulegium L., Rosmarinus officinalis L., Calamintha nepeta (L.) Savi ssp. nepeta, Cistus ladanifer L., Foeniculum vulgare L., Dittrichia viscosa (L.) Greuter ssp. viscosa - were extracted by hydrodistillation and characterized by GC-FID and NMR spectroscopy. EOs were evaluated for antimicrobial properties against several bacterial strains, using diverse methods, namely, the agar disc-diffusion method, the microdilution method, the crystal violet assay and the Live/Dead staining for assessment of biofilm formation...
March 9, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28278662/antimicrobial-activity-of-saponins-produced-by-two-novel-endophytic-fungi-from-panax-notoginseng
#6
Zhaoxia Jin, Lin Gao, Lin Zhang, Tianyi Liu, Fang Yu, Zongshen Zhang, Qiong Guo, Biying Wang
Endophytes in plants may be co-producer of the bioactive compounds of their hosts. We conducted a study to bioprospect for saponin-producing endophytic fungi from Panax notoginseng and evaluate the antimicrobial activity of saponins. Two novel fungal endophytes, Fusarium sp. PN8 and Aspergillus sp. PN17, were isolated from traditional Chinese medicinal herb P. notoginseng. After eight days of fermentation, the total saponins produced in the culture broth of PN8 and PN17 were 1.061 and 0.583 mg mL(-1), respectively...
February 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28278648/phytochemical-and-biological-study-of-callus-cultures-of-tulbaghia-violacea-harv-cultivated-in-egypt
#7
Hanaa H Eid, Ghada F Metwally
As in vitro plant cultures are used extensively to produce bioactive metabolites, our goal was to establish calli from Tulbaghia violacea Harv. flowers and assess the tissue phytochemically and biologically. Murashige & Skoog medium(MS) + 22.6 μM 2,4-dichlorophenoxyacetic acid +2.2 μM benzylaminopurine induced callus from flowers. Gas chromatography/mass spectrometry(GC/MS) analyses of n-hexane extracts of calli(HC) and flowers(HF) revealed 33 and 32 components(92.6 and 98.5%, respectively). Hydrocarbons were predominant in HC (55...
February 21, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28278044/effect-of-animal-products-and-extracts-on-wound-healing-promotion-in-topical-applications-a-review
#8
Supamas Napavichayanun, Pornanong Aramwit
Wound healing is a natural process of body reaction to repair itself after injury. Nonetheless, many internal and external factors such as aging, comorbidity, stress, smoking, alcohol drinking, infections, malnutrition, or wound environment significantly affect the quality and speed of wound healing. The unsuitable conditions may delay wound healing process and cause chronic wound or scar formation. Therefore, many researches have attempted to search for agents that can accelerate wound healing with safety and biocompatibility to human body...
March 1, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28274230/appraisal-of-phytochemical-and-in-vitro-biological-attributes-of-an-unexplored-folklore-rhus-punjabensis-stewart
#9
Saira Tabassum, Madiha Ahmed, Bushra Mirza, Muhammad Naeem, Muhammad Zia, Zabta Khan Shanwari, Gul Majid Khan
BACKGROUND: The role of plants for discovery of therapeutic potential accentuates the need to know their biological attributes. The present study aims to comprehend the biological attributes of Rhus punjabensis, an unexplored traditional medicinal plant. METHODS: Leaf and stem extracts of R. punjabensis prepared in 11 different organic solvents are evaluated for multimode antioxidant potential, total phenolic and flavonoid contents were determined through colorimetric assays, HPLC-DAD analysis was carried out for quantification of various polyphenols in extracts...
March 9, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28274052/efficacy-of-natural-and-allopathic-antimicrobial-agents-incorporated-onto-guided-tissue-regeneration-membrane-against-periodontal-pathogens-an-in-vitro-study
#10
Neha Mehrotra, Ajay Reddy Palle, Rajani Kumar Gedela, Sanjay Vasudevan
INTRODUCTION: Periodontal disease is one of the most prevalent afflictions worldwide. It is an infection of the periodontium as a result of subgingival colonization of the specific microbiota, leading to loss of attachment, which requires optimal care for regeneration to its pre-disease state. Guided Tissue Regeneration (GTR) is one of the successful treatment modalities in Periodontal Regenerative Therapy, but is vulnerable to bacterial colonization. The conflict between usage of classical antibiotics and plant origin antimicrobial agents has recently been in the limelight...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28272800/correlation-between-antimicrobial-antioxidant-activity-and-polyphenols-of-alkalized-nonalkalized-cocoa-powders
#11
Vanja Todorovic, Marina Milenkovic, Bojana Vidovic, Zoran Todorovic, Sladjana Sobajic
Many factors can influence antioxidative and antimicrobial characteristics of plant materials. The quality of cocoa as functional food ingredient is influenced through its processing. The main aim of this study was to test if there is difference in polyphenol content, antioxidant capacity, and antimicrobial activity between nonalkalized and alkalized cocoa powders. To estimate polyphenol and flavonoid content in cocoa samples the spectrophotometric microassays were used. Flavan-3ols were determined with reversed-phase high-performance liquid chromatography (RP-HPLC)...
March 8, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28264708/effectiveness-of-persea-major-kopp-lauraceae-extract-against-enterococcus-faecalis-a-preliminary-in-vitro-study
#12
Lusiane Volpato, Marilisa Carneiro Leão Gabardo, Denise Piotto Leonardi, Paulo Henrique Tomazinho, Leila Teresinha Maranho, Flares Baratto-Filho
BACKGROUND: Persea major Kopp (Lauraceae) is a plant with wound healing, antibacterial, and analgesic properties. The aim of this study was to assess the in vitro antibacterial activity of the concentrated crude extract (CCE) and ethyl acetate fraction (EAF) of this plant against Enterococcus faecalis and compare it with calcium hydroxide [Ca(OH)2] paste and 2% chlorhexidine digluconate (CHX). METHODS: The plant material was collected, and an extract was prepared according to the requirements of the study (CCE and EAF)...
March 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28264654/diversity-phylogeny-anticancer-and-antimicrobial-potential-of-fungal-endophytes-associated-with-monarda-citriodora-l
#13
Meenu Katoch, Shipra Phull, Shagun Vaid, Shashank Singh
BACKGROUND: Present study focuses on diversity and distribution analysis of endophytic fungi associated with different tissues of the Monarda citriodora Cerv. ex Lag. (Lamiaceae/Labiatae). Anticancer and antimicrobial potential of isolated endophytes have also been investigated. RESULTS: A total of twenty eight fungal endophytes belonging to 11 different genera were isolated from this plant. All the endophytic fungi belonged to the Ascomycota phylum. The leaves were immensely rich in fungal species, while roots showed the highest tissue specific fungal dominance...
March 7, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28261161/antibacterial-activity-and-synergistic-antibacterial-potential-of-biosynthesized-silver-nanoparticles-against-foodborne-pathogenic-bacteria-along-with-its-anticandidal-and-antioxidant-effects
#14
Jayanta Kumar Patra, Kwang-Hyun Baek
Silver nanoparticles plays a vital role in the development of new antimicrobial substances against a number of pathogenic microorganisms. These nanoparticles due to their smaller size could be very effective as they can improve the antibacterial activity through lysis of bacterial cell wall. Green synthesis of metal nanoparticles using various plants and plant products has recently been successfully accomplished. However, few studies have investigated the use of industrial waste materials in nanoparticle synthesis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28261096/antioxidant-activities-metabolic-profiling-proximate-analysis-mineral-nutrient-composition-of-salvadora-persica-fruit-unravel-a-potential-functional-food-and-a-natural-source-of-pharmaceuticals
#15
Asha Kumari, Asish K Parida, Jaykumar Rangani, Ashok Panda
Salvadora persica is a medicinally important plant mainly used in oral hygiene. However, little attention has been given towards the nutritional prominence of this plant. This study encloses the proximate and mineral nutrient contents, amino acid composition, metabolite profiling and antioxidant potential of S. persica fruit. The ripen fruit contained substantial amount of sugars, mineral nutrients, carotenoids, polyphenols and flavonoids. The metabolic profiling of the fruit extract by GC-MS revealed a total of 22 metabolites comprising of sugars, sugar alcohols, organic acids, organic base, and aromatic silica compound...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28260002/a-novel-cycloartane-triterpenoid-from-cimicifuga-induces-apoptotic-and-autophagic-cell-death-in-human-colon-cancer-ht-29-cells
#16
Xiaoli Dai, Jing Liu, Yin Nian, Ming-Hua Qiu, Ying Luo, Jihong Zhang
The extract from Cimicifuga, a genus of flowering plants, has been demonstrated to have mainly therapeutic effects on menstrual and menopausal symptoms and also exhibits immunomodulatory, anti-inflammatory and antimicrobial activity. Moreover, the anticancer effects of Cimicifuga have been reported, but the underlying mechanism causing cancer cell death has been poorly described. The present study was designed to investigate the antitumor effects and underlying molecular mechanisms of cimigenol (KY17), a novel cycloartane triterpenoid from Cimicifuga...
February 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28255785/chemical-composition-antioxidant-and-biological-activities-of-the-essential-oil-and-extract-of-the-seeds-of-glycine-max-soybean-from-north-iran
#17
Somayeh Ghahari, Heshmatollah Alinezhad, Ghorban Ali Nematzadeh, Mahmood Tajbakhsh, Robabeh Baharfar
Glycine max (L.) Merrill (soybean) is a major leguminous crop, cultivated globally as well as in Iran. This study examines the chemical composition of soybean essential oil, and evaluates the antioxidant and antimicrobial activities of seeds on various plant pathogens that commonly cause irreparable damages to agricultural crops. The essential oil of soybean seeds was analyzed by gas chromatography coupled to mass spectrometry. Antimicrobial activity was tested against 14 microorganisms, including three gram-positive, five gram-negative bacteria, and six fungi, using disk diffusion method and the Minimum Inhibitory Concentration technique...
April 2017: Current Microbiology
https://www.readbyqxmd.com/read/28254012/the-position-of-prenylation-of-isoflavonoids-and-stilbenoids-from-legumes-fabaceae-modulates-the-antimicrobial-activity-against-gram-positive-pathogens
#18
Carla Araya-Cloutier, Heidy M W den Besten, Siti Aisyah, Harry Gruppen, Jean-Paul Vincken
The legume plant family (Fabaceae) is a potential source of antimicrobial phytochemicals. Molecular diversity in phytochemicals of legume extracts was enhanced by germination and fungal elicitation of seven legume species, as established by RP-UHPLC-UV-MS. The relationship between phytochemical composition, including different types of skeletons and substitutions, and antibacterial properties of extracts was investigated. Extracts rich in prenylated isoflavonoids and stilbenoids showed potent antibacterial activity against Listeria monocytogenes and methicillin-resistant Staphylococcus aureus at concentrations between 0...
July 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28249605/cultivable-gut-bacteria-provide-a-pathway-for-adaptation-of-chrysolina-herbacea-to-mentha-aquatica-volatiles
#19
Graziano Pizzolante, Chiara Cordero, Salvatore M Tredici, Davide Vergara, Paola Pontieri, Luigi Del Giudice, Andrea Capuzzo, Patrizia Rubiolo, Chidananda N Kanchiswamy, Simon A Zebelo, Carlo Bicchi, Massimo E Maffei, Pietro Alifano
BACKGROUND: A chemical cross-talk between plants and insects is required in order to achieve a successful co-adaptation. In response to herbivory, plants produce specific compounds, and feeding insects respond adequately7 to molecules produced by plants. Here we show the role of the gut microbial community of the mint beetle Chrysolina herbacea in the chemical cross-talk with Mentha aquatica (or watermint). RESULTS: By using two-dimensional gas chromatography-mass spectrometry we first evaluated the chemical patterns of both M...
March 2, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28245081/limited-effectiveness-of-over-the-counter-plant-preparations-used-for-the-treatment-of-urinary-tract-infections-as-inhibitors-of-the-urease-activity-from-staphylococcus-saprophyticus
#20
Charles E Deutch
AIMS: Urease is a key virulence factor for the Gram-positive urinary tract pathogen Staphylococcus saprophyticus and a potential target for antimicrobial therapy. The enzyme from S. saprophyticus is unusual in that it does not contain cysteine at the active site. The aims of this study were to test fourteen over-the-counter plant preparations as inhibitors of this urease and to determine if they can prevent the increase in pH that normally occurs in bacterial cultures containing urea...
February 28, 2017: Journal of Applied Microbiology
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