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Antimicrobial activity plant extract

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https://www.readbyqxmd.com/read/29779268/variation-in-polyphenolic-profiles-antioxidant-and-antimicrobial-activity-of-different-achillea-species-as-natural-sources-of-antiglycative-compounds
#1
Mahvash Afshari, Mehdi Rahimmalek, Mehran Miroliaei
A comparative study was carried out on the methanolic extracts from six Achillea species and the examined polyphenols from these plants on the formation of advanced glycation end-products (AGE) in vitro. A. pachycephala which was richer in flavonoids (15 mg quercetin/g W) and phenolics (111.10 mg tannic acid/g DW) with substantial antioxidant activity (IC50 = 365.5 μg/ml) presented strong anti-AGE properties. Chlorogenic acid, luteolin, quercetin and caffeic acid were identified as the major polyphenols in the extracts by HPLC...
May 19, 2018: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29772647/the-antimicrobial-activity-of-annona-emarginata-schltdl-h-rainer-and-most-active-isolated-compounds-against-clinically-important-bacteria
#2
Juan G Dolab, Beatriz Lima, Ewelina Spaczynska, Jiri Kos, Natividad H Cano, Gabriela Feresin, Alejandro Tapia, Francisco Garibotto, Elisa Petenatti, Monica Olivella, Robert Musiol, Josef Jampilek, Ricardo D Enriz
Annona emarginata (Schltdl.) H. Rainer, commonly known as "arachichú", "araticú", "aratigú", and "yerba mora", is a plant that grows in Argentina. Infusions and decoctions are used in folk medicine as a gargle against throat pain and for calming toothache; another way to use the plant for these purposes is chewing its leaves. Extracts from bark, flowers, leaves, and fruits from A. emarginata were subjected to antibacterial assays against a panel of Gram (+) and Gram (-) pathogenic bacteria according to Clinical and Laboratory Standards Institute protocols...
May 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29771598/understanding-the-potential-benefits-of-thyme-and-their-derived-products-on-food-industry-and-health-from-extraction-of-high-added-value-compounds-to-the-evaluation-of-bioaccessibility-bioavailability-anti-inflammatory-and-antimicrobial-activities
#3
Jose M Lorenzo, Amin Mousavi Khaneghah, Mohsen Gavahian, Krystian Marszałek, Ismail Eş, Paulo E S Munekata, Isabel C F R Ferreira, Francisco J Barba
Natural bioactive compounds isolated from aromatic plants have been studied for centuries due to their unique characteristics that carry great importance in food, pharmaceutical, and cosmetic industry. For instance, several beneficial activities have been attributed to some specific compounds found in Thymus such as anti-inflammatory, antioxidant, antimicrobial and antiseptic properties. Moreover, these compounds are classified as Generally Recognized as Safe (GRAS). Conventional extraction processes of these compounds and their derived forms from thyme leaves are well established, however, they present some important drawbacks such as long extraction time, low yield, high solvent consumption and unfavorable effect on thermolabile compounds...
May 17, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29769064/antimicrobial-and-antioxidant-activities-of-triterpenoid-and-phenolic-derivatives-from-two-cameroonian-melastomataceae-plants-dissotis-senegambiensis-and-amphiblemma-monticola
#4
Raissa Tioyem Nzogong, Fabrice Sterling Tchantchou Ndjateu, Steve Endeguele Ekom, Jules-Arnaud Mboutchom Fosso, Maurice Ducret Awouafack, Mathieu Tene, Pierre Tane, Hiroyuki Morita, Muhammad Iqbal Choudhary, Jean-de-Dieu Tamokou
BACKGROUND: Antimicrobial resistance is a serious threat against humankind and the search for new therapeutics is needed. This study aims to investigate the antimicrobial and antioxidant activities of ethanol extracts and compounds isolated from Dissotis senegambiensis and Amphiblemma monticola, two Cameroonian Melastomataceae species traditionally used for the treatment of fever, malaria and infectious diseases. METHODS: The plant extracts were prepared by maceration in ethanol...
May 16, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29766690/garden-nasturtium-tropaeolum-majus-l-a-source-of-mineral-elements-and-bioactive-compounds
#5
Karolina Jakubczyk, Katarzyna Janda, Katarzyna Watychowicz, Jagoda Łukasiak, Jolanta Wolska
The garden nasturtium (Tropaeolum majus L.) belongs to the family Tropaeolaceae. Native to South America it was brought to Europe in XVI century. It is a plant with numerous healing properties. Medicinal plants such as the garden nasturtium contain trace elements and bioactive compounds which can be easily absorbed by the human body. The flowers and other parts of the garden nasturtium are a good source of micro elements such as potassium, phosphorus, calcium and magnesium, and macro elements, especially of zinc, copper and iron...
2018: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/29765815/in-vitro-investigation-of-antimicrobial-activities-of-ethnomedicinal-plants-against-dental-caries-pathogens
#6
Mamta Besra, Vipin Kumar
The study aimed to evaluate the antimicrobial activity of medicinal plant extracts against the bacterial pathogens prominent in dental caries. A total of 20 plant species (herbs, shrubs and trees) belonging to 18 genera and 15 families were documented for dental caries. Antimicrobial activity of solvent extracts and essential oil from plants were determined by zone of inhibition on the growth of Streptococcus mutans (MTCC 497) and Lactobacillus acidophilus (MTCC 10307) using the agar well diffusion method. The results of in vitro antimicrobial assay prove that methanol is more successful in the extraction of phytochemicals from plant samples than aqueous solvent, as methanol extracts show higher antimicrobial activity than aqueous extracts against both the test pathogens...
May 2018: 3 Biotech
https://www.readbyqxmd.com/read/29759936/in-vitro-antioxidant-antilipoxygenase-and-antimicrobial-activities-of-extracts-from-seven-climbing-plants-belonging-to-the-bignoniaceae
#7
Carola Analía Torres, Cristina Marisel Pérez Zamora, María Beatriz Nuñez, Ana María Gonzalez
OBJECTIVES: This study aimed to evaluate the in vitro antioxidant capacity, to determine the anti-inflammatory effect due to lipoxygenase inhibition and to test the antimicrobial activity of ethanolic extracts from leaves of seven climbing species belonging to the Bignoniaceae family. These species are Adenocalymma marginatum (Cham.) DC., Amphilophium vauthieri DC., Cuspidaria convoluta (Vell.) A. H. Gentry, Dolichandra dentata (K. Schum.) L. G. Lohmann, Fridericia caudigera (S. Moore) L...
May 3, 2018: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29757687/a-review-of-analytical-methods-for-p-coumaric-acid-in-plant-based-products-beverages-and-biological-matrices
#8
Paula Scanavez Ferreira, Francesca Damiani Victorelli, Bruno Fonseca-Santos, Marlus Chorilli
p-Coumaric acid (p-CA), also known as 4-hydroxycinnamic acid, is a phenolic acid, which has been widely studied due to its beneficial effects against several diseases and its wide distribution in the plant kingdom. This phenolic compound can be found in the free form or conjugated with other molecules; therefore, its bioavailability and the pathways via which it is metabolized change according to its chemical structure. p-CA has potential pharmacological effects because it has high free radical scavenging, anti-inflammatory, antineoplastic, and antimicrobial activities, among other biological properties...
May 14, 2018: Critical Reviews in Analytical Chemistry
https://www.readbyqxmd.com/read/29756461/polyphenolic-content-antioxidant-and-antimicrobial-activities-of-vernonia-mespilifolia-less-used-in-folk-medicine-in-the-eastern-cape-province-south-africa
#9
Jeremiah Oshiomame Unuofin, Gloria Aderonke Otunola, Anthony Jide Afolayan
Vernonia mespilifolia Less. is a shrub of the Asteraceae family used in the South African traditional medicine system for the management of weight loss, hypertension, and heartwater disease. There is a need for scientific evaluation to validate its ethnomedicinal usage. In vitro assays were conducted to evaluate the polyphenolic content, antioxidant and antimicrobial properties of different solvent extracts (acetone, aqueous, and ethanol) of the whole plant of Vernonia mespilifolia spectrophotometric and agar dilution techniques, respectively...
January 2018: Journal of evidence-based integrative medicine
https://www.readbyqxmd.com/read/29751684/polyphenolic-composition-and-antioxidant-activity-of-aqueous-and-ethanolic-extracts-from-uncaria-tomentosa-bark-and-leaves
#10
Mirtha Navarro-Hoyos, Diego Alvarado-Corella, Ileana Moreira-Gonzalez, Elizabeth Arnaez-Serrano, Maria Monagas-Juan
Uncaria tomentosa constitutes an important source of secondary metabolites with diverse biological activities mainly attributed until recently to alkaloids and triterpenes. We have previously reported for the first-time the polyphenolic profile of extracts from U. tomentosa , using a multi-step process involving organic solvents, as well as their antioxidant capacity, antimicrobial activity on aerial bacteria, and cytotoxicity on cancer cell lines. These promising results prompted the present study using food grade solvents suitable for the elaboration of commercial extracts...
May 11, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29749084/echinacea-plants-as-antioxidant-and-antibacterial-agents-from-traditional-medicine-to-biotechnological-applications
#11
REVIEW
Mehdi Sharifi-Rad, Dima Mnayer, Maria Flaviana Bezerra Morais-Braga, Joara Nályda Pereira Carneiro, Camila Fonseca Bezerra, Henrique Douglas Melo Coutinho, Bahare Salehi, Miquel Martorell, María Del Mar Contreras, Azam Soltani-Nejad, Yoshie Adriana Hata Uribe, Zubaida Yousaf, Marcello Iriti, Javad Sharifi-Rad
The genus Echinacea consists of 11 taxa of herbaceous and perennial flowering plants. In particular, Echinacea purpurea (L.) Moench is widely cultivated all over the United States, Canada, and in Europe, exclusively in Germany, for its beauty and reported medicinal properties. Echinacea extracts have been used traditionally as wound healing to improve the immune system and to treat respiratory symptoms caused by bacterial infections. Echinacea extracts have demonstrated antioxidant and antimicrobial activities, and to be safe...
May 10, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29738503/investigation-of-the-antifungal-activity-and-mode-of-action-of-thymus-vulgaris-citrus-limonum-pelargonium-graveolens-cinnamomum-cassia-ocimum-basilicum-and-eugenia-caryophyllus-essential-oils
#12
Katarzyna Gucwa, Sławomir Milewski, Tomasz Dymerski, Piotr Szweda
The antimicrobial activity of plant oils and extracts has been recognized for many years. In this study the activity of Thymus vulgaris , Citrus limonum , Pelargonium graveolens , Cinnamomum cassia , Ocimum basilicum , and Eugenia caryophyllus essential oils (EOs) distributed by Pollena Aroma (Nowy Dwór Mazowiecki, Poland) was investigated against a group of 183 clinical isolates of C. albicans and 76 isolates of C. glabrata . All of the oils exhibited both fungistatic and fungicidal activity toward C. albicans and C...
May 8, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29733941/anti-quorum-sensing-activity-toxicity-in-zebrafish-danio-rerio-embryos-and-phytochemical-characterization-of-trapa-natans-leaf-extracts
#13
Ivana Aleksic, Petar Ristivojevic, Aleksandar Pavic, Ivana Radojević, Ljiljana R Čomić, Branka Vasiljevic, Dejan Opsenica, Dušanka Milojković-Opsenica, Lidija Senerovic
ETHNOPHARMACOLOGICAL RELEVANCE: Trapa natans L. (water chestnut or water caltrop) is a widespread aquatic plant, which has been cultivated for food and traditional medicine since ancient times. Pharmacological studies showed that water chestnut exhibits the wide range of biological activities, such as antimicrobial, antioxidative, analgesic, anti-inflammatory, as well as antiulcer. AIMOF THE STUDY: Evaluation of anti-virulence potential and toxicity of T. natans methanol (TnM), acetone (TnA) and ethyl acetate (TnEA) leaf extracts...
May 4, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29732627/antimicrobial-activity-of-extracts-and-phthalides-occurring-in-apiaceae-plants
#14
REVIEW
Jakub Pannek, Joanna Gach, Filip Boratyński, Teresa Olejniczak
Apiaceae plants exhibit a broad spectrum of activities, for instance, antithrombotic, hypotensive, antioxidant, and insecticidal. They also provide a source of phthalides, which display antimicrobial activity. Considering the fact of rising resistance of both bacteria and fungi against commonly used antibiotics, developing of new naturally derived compounds is undeniably attractive approach. To our best knowledge, there are no other reviews concerning this subject in the literature. In view of above, an attempt to summarize an antimicrobial potential of isolated compounds and extracts from Apiaceae plants has been made, by specifying techniques of activity determination and methods of extraction...
May 7, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29727733/lipophilic-extracts-of-leucas-zeylanica-a-multi-purpose-medicinal-plant-in-the-tropics-inhibit-key-enzymes-involved-in-inflammation-and-gout
#15
Mayuri Napagoda, Jana Gerstmeier, Hannah Butschek, Sybille Lorenz, Dinusha Kanatiwela, Sudhara De Soyza, Mallique Qader, Ajith Nagahawatte, Gaya Bandara Wijayaratne, Aleš Svatoš, Lalith Jayasinghe, Andreas Koeberle, Oliver Werz
ETHNOPHARMACOLOGICAL RELEVANCE: Leucas zeylanica (L.) W.T. Aiton is a popular, multi-purpose medicinal plant in Sri Lanka but the pharmacological potential and the chemical profile have not been systematically investigated to understand and rationalize the reported ethnobotanical significance. AIM OF THE STUDY: The present study was undertaken to scientifically validate the traditional usage of this plant for the treatment of inflammatory conditions, gout and microbial infections...
May 1, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29720830/total-phenolics-total-flavonoids-antioxidant-capacities-and-volatile-compounds-gas-chromatography-mass-spectrometry-profiling-of-moringa-oleifera-ripe-seed-polar-fractions
#16
Ismail Abiola Adebayo, Hasni Arsad, Mohd Razip Samian
Background: Academic reports have confirmed Moringa oleifera leaves to possess significant antioxidant capacities; however, such studies are unavailable for its ripe seeds even though they are more desirous for consumption due to their sweet taste. Objective: In this study, we investigated antioxidant capacities of four polar extracts (crude water, ethanol, butanol, and aqueous residue) from the plant's ripe seeds. Materials and Methods: Phytochemicals were extracted from the ripe seeds of M...
April 2018: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29713166/in-vivo-antimicrobial-activity-of-silver-nanoparticles-produced-via-a-green-chemistry-synthesis-using-acacia-rigidula-as-a-reducing-and-capping-agent
#17
Carlos Enrique Escárcega-González, J A Garza-Cervantes, A Vázquez-Rodríguez, Liliana Zulem Montelongo-Peralta, M T Treviño-González, E Díaz Barriga Castro, E M Saucedo-Salazar, R M Chávez Morales, D I Regalado Soto, F M Treviño González, J L Carrazco Rosales, Rocío Villalobos Cruz, José Rubén Morones-Ramírez
Introduction: One of the main issues in the medical field and clinical practice is the development of novel and effective treatments against infections caused by antibiotic-resistant bacteria. One avenue that has been approached to develop effective antimicrobials is the use of silver nanoparticles (Ag-NPs), since they have been found to exhibit an efficient and wide spectrum of antimicrobial properties. Among the main drawbacks of using Ag-NPs are their potential cytotoxicity against eukaryotic cells and the latent environmental toxicity of their synthesis methods...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29710781/phenolic-composition-and-bioactivity-of-lavandula-pedunculata-mill-cav-samples-from-different-geographical-origin
#18
Catarina L Lopes, Eliana Pereira, Marina Soković, Ana Maria Carvalho, Ana Maria Barata, Violeta Lopes, Filomena Rocha, Ricardo C Calhelha, Lillian Barros, Isabel C F R Ferreira
The aim of this study was to characterize the phenolic composition and evaluate the bioactivity of several samples of Lavandula pedunculata (Mill.) Cav, and to compare aqueous and hydroethanolic extracts. Plant materials were obtained by growing some accessions (seed samples) of various wild populations from different regions of Portugal conserved at the Portuguese Genebank in Braga. Phenolic compounds were analised by HPLC-DAD-ESI/MSn, antioxidant potential through in vitro assays (DPPH radical scavenging activity, reducing power and inhibition of lipid peroxidation), cytotoxicity on tumor cells (MCF-7, NCI-H460, HeLa and HepG2) and non-tumor (PLP2) cells, anti-inflammatory activity in rat RAW 264...
April 28, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29702623/identification-of-peptides-in-flowers-of-sambucus-nigra-with-antimicrobial-activity-against-aquaculture-pathogens
#19
Claudio Andrés Álvarez, Andrés Barriga, Fernando Albericio, María Soledad Romero, Fanny Guzmán
The elder ( Sambucus spp.) tree has a number of uses in traditional medicine. Previous studies have demonstrated the antimicrobial properties of elderberry liquid extract against human pathogenic bacteria and also influenza viruses. These properties have been mainly attributed to phenolic compounds. However, other plant defense molecules, such as antimicrobial peptides (AMPs), may be present. Here, we studied peptide extracts from flowers of Sambucus nigra L. The mass spectrometry analyses determined peptides of 3 to 3...
April 27, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29701161/ferula-gummosa-boiss-inhibits-multi-drug-resistant-clinical-pseudomonas-aeruginosas
#20
Fereshteh Satarian, Hamideh Mahmoodzadeh Hosseini, Abdolamir Ghadaksaz, Mohsen Amin, Abbas Ali Imani Fooladi
BACKGROUND: Multi-drug resistance among Pseudomonas aeruginosa (P. aeruginosa) clinical isolates is increasing and becoming a serious problem for public health authorities worldwide. OBJECTIVE: The aim of current study is the introducing a potent antibacterial compound against the resistant P. aeruginosa. The recent patents on antimicrobial properties of extracts drived from Apiaceae family plants (WO2017216602A1, KR20050054247A and KR100285781B1) were used to to assess other member Ferula gummosa (F...
April 26, 2018: Recent Patents on Anti-infective Drug Discovery
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