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Antimicrobial effect plant extract

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https://www.readbyqxmd.com/read/29023758/biological-activities-of-agave-by-products-and-their-possible-applications-in-food-and-pharmaceuticals
#1
REVIEW
Julio Cesar López-Romero, Jesús Fernando Ayala-Zavala, Gustavo Adolfo González-Aguilar, Etna Aida Peña-Ramos, Humberto González-Ríos
Agave leaves are considered a by-product of alcoholic beverage production (tequila, mezcal and bacanora) because they are discarded during the production process, despite accounting for approximately 50 % of the total plant weight. These by-products constitute a potential source of Agave extracts rich in bioactive compounds, such as saponins, phenolic compounds and terpenes, and possess different biological effects, as demonstrated by in vitro and in vivo tests (e.g., antimicrobial, antifungal, antioxidant, anti-inflammatory, antihypertensive, immunomodulatory, antiparasitic, and anticancer activity)...
October 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29023003/antioxidant-and-biological-activities-of-proteinaceous-extract-from-algerian-glycine-max-plant
#2
Nassima Soussi, Saad Moulay, Khaldoun Bachari, Yamina Benmiri
OBJECTIVE: Glycine max is commonly used in Algeria for treatment of anemia deficiency and osteoporosis, it ranks first in terms of vegetal proteins. The experiment was aimed at characterizing the proteinaceous Glycine max extract and evaluating its antioxidant, biological and hematological potential. METHODOLOGY: Extraction of proteinaceous materials from Glycine max plant was undertaken using water and n-hexane as extracting media. The isolation of proteins from the crude materials was done, providing the use of ammonium sulfate...
2017: Pakistan Journal of Biological Sciences: PJBS
https://www.readbyqxmd.com/read/29018419/gene-expression-response-of-salmonella-enterica-serotype-enteritidis-phage-type-8-to-subinhibitory-concentrations-of-the-plant-derived-compounds-trans-cinnamaldehyde-and-eugenol
#3
Anup Kollanoor Johny, Jonathan G Frye, Annie Donoghue, Dan J Donoghue, Steffen Porwollik, Michael McClelland, Kumar Venkitanarayanan
Background:Salmonella Enteritidis phage type 8 (PT8) is a major poultry-associated Salmonella strain implicated in foodborne outbreaks in the United States. We previously reported that two plant-derived compounds generally recognized as safe (GRAS), trans-cinnamaldehyde (TC), and eugenol (EG), significantly reduced S. Enteritidis colonization in broiler and layer chickens. To elucidate potential PT8 genes affected by TC and EG during colonization, a whole-genome microarray analysis of the bacterium treated with TC and EG was conducted...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28989855/antimicrobial-inhibitory-activity-of-aqueous-hydroalcoholic-and-alcoholic-extracts-of-leaves-and-stem-of-daphne-mucronata-on-growth-of-oral-bacteria
#4
Kolsoom Shirzadi Karamolah, Fatemeh Mousavi, Hassan Mahmoudi
Background: Plants are a source of potential anti-infective agents. Daphne mucronata is a shrub in the family Thymelaeaceae, which has therapeutic effects. The aim of the present study was to evaluate the antimicrobial activity of aqueous, hydroalcoholic and alcoholic extracts of the leaves and stem of Daphne mucronata on the growth of oral bacteria. Materials and methods: Leaves and stem of Daphne mucronata were collected from the Zagros Mountains, Lorestan, Iran. They were air dried in the shade. Aqueous, hydroalcoholic and alcoholic extracts of Daphne mucronata were made by using classic techniques for solvent extraction of plant material...
2017: GMS Hygiene and Infection Control
https://www.readbyqxmd.com/read/28989242/developing-new-antimicrobial-therapies-are-synergistic-combinations-of-plant-extracts-compounds-with-conventional-antibiotics-the-solution
#5
REVIEW
Matthew J Cheesman, Aishwarya Ilanko, Baxter Blonk, Ian E Cock
The discovery of penicillin nearly 90 years ago revolutionized the treatment of bacterial disease. Since that time, numerous other antibiotics have been discovered from bacteria and fungi, or developed by chemical synthesis and have become effective chemotherapeutic options. However, the misuse of antibiotics has lessened the efficacy of many commonly used antibiotics. The emergence of resistant strains of bacteria has seriously limited our ability to treat bacterial illness, and new antibiotics are desperately needed...
July 2017: Pharmacognosy Reviews
https://www.readbyqxmd.com/read/28970777/anthocyanidins-and-anthocyanins-colored-pigments-as-food-pharmaceutical-ingredients-and-the-potential-health-benefits
#6
REVIEW
Hock Eng Khoo, Azrina Azlan, Sou Teng Tang, See Meng Lim
Anthocyanins are colored water-soluble pigments belonging to the phenolic group. The pigments are in glycosylated forms. Anthocyanins responsible for the colors, red, purple, and blue, are in fruits and vegetables. Berries, currants, grapes, and some tropical fruits have high anthocyanins content. Red to purplish blue-colored leafy vegetables, grains, roots, and tubers are the edible vegetables that contain a high level of anthocyanins. Among the anthocyanin pigments, cyanidin-3-glucoside is the major anthocyanin found in most of the plants...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28943762/evaluation-on-antimicrobial-activity-of-psoraleae-semen-extract-controlling-the-growth-of-gram-positive-bacteria
#7
Sejeong Kim, Soomin Lee, Heeyoung Lee, Jimyeong Ha, Jeeyeon Lee, Yukyung Choi, Hyemin Oh, Joonbae Hong, Yohan Yoon, Kyoung-Hee Choi
This study investigated bacterial growth-inhibitory effect of 69 therapeutic herbal plants extracts on 9 bacterial strains using a disc diffusion assay. Especially, the antimicrobial activity of Psoraleae semen, which showed different activity on pathogenic Gram-positive and Gram-negative bacteria, was evaluated by MIC (minimal inhibition concentration) and biofilm formation assay. The effect of Psoraleae semen extract on bacterial cell membranes was examined by measurement of protein leakage (optical density at 280 nm) and scanning electron microscope (SEM)...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28937585/phytochemicals-extraction-isolation-and-identification-of-bioactive-compounds-from-plant-extracts
#8
REVIEW
Ammar Altemimi, Naoufal Lakhssassi, Azam Baharlouei, Dennis G Watson, David A Lightfoot
There are concerns about using synthetic phenolic antioxidants such as butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA) as food additives because of the reported negative effects on human health. Thus, a replacement of these synthetics by antioxidant extractions from various foods has been proposed. More than 8000 different phenolic compounds have been characterized; fruits and vegetables are the prime sources of natural antioxidants. In order to extract, measure, and identify bioactive compounds from a wide variety of fruits and vegetables, researchers use multiple techniques and methods...
September 22, 2017: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28934870/a-bioanalytical-approach-of-chemical-composition-bioactivity-and-cytotoxicity-of-berteroa-incana-l-herb
#9
Oana Ungureanu, Florentina Gatea, Ana Maria Seciu, Eugenia Dumitra Teodor, Isabela Madalina Nicorescu, Gabriel Lucian Radu
Berteroa incana is a wild herb widespread in temperate zones which was practically not studied for its biological effects. Methanolic and aqueous extracts of B. incana were assessed for the content in polyphenols and the related antioxidant and antimicrobial activities and the polysaccharide extract for the content in saccharides and the associated cytostatic effect. The results obtained highlighted that the methanolic extracts of B. incana contain moderate amounts of polyphenols, the most representative been isoquercitrin 4...
September 21, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28932192/wound-healing-properties-of-selected-plants-used-in-ethnoveterinary-medicine
#10
Amos Marume, Gift Matope, Simbarashe Katsande, Star Khoza, Isaac Mutingwende, Takafira Mduluza, Tafadzwa Munodawafa-Taderera, Ashwell R Ndhlala
Plants have arrays of phytoconstituents that have wide ranging biological effects like antioxidant, anti-inflammatory and antimicrobial properties key in wound management. In vivo wound healing properties of ointments made of crude methanolic extracts (10% extract w/w in white soft paraffin) of three plant species, Cissus quadrangularis L. (whole aerial plant parts), Adenium multiflorum Klotzsch (whole aerial plant parts) and Erythrina abyssinica Lam. Ex DC. (leaves and bark) used in ethnoveterinary medicine were evaluated on BALB/c female mice based on wound area changes, regular observations, healing skin's percentage crude protein content and histological examinations...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28920144/effects-of-caatinga-plant-extracts-in-planktonic-growth-and-biofilm-formation-in-ralstonia-solanacearum
#11
Carolina Barbosa Malafaia, Ana Cláudia Silva Jardelino, Alexandre Gomes Silva, Elineide Barbosa de Souza, Alexandre José Macedo, Maria Tereza Dos Santos Correia, Márcia Vanusa Silva
This study describes the first antibiofilm and antibacterial screening for plants from Caatinga against Ralstonia solanacearum, a causal agent of bacterial wilt that presents serious difficulties in control. There were prepared 22 aqueous extracts of plants collected in the Vale do Catimbau-PE, Brazil. The potential antibacterial activity was evaluated by absorbance in OD600 and the antibiofilm activity through the crystal violet method, both of them performed in microplate against isolates of R. solanacearum biofilm formers...
September 17, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28910141/rapid-screening-of-natural-plant-extracts-with-calcium-diacetate-for-differential-effects-against-foodborne-pathogens-and-a-probiotic-bacterium
#12
William Colonna, Byron Brehm-Stecher, Kalidas Shetty, Anthony Pometto Iii
This study focused on advancing a rapid turbidimetric bioassay to screen antimicrobials using specific cocktails of targeted foodborne bacterial pathogens. Specifically, to show the relevance of this rapid screening tool, the antimicrobial potential of generally recognized as safe calcium diacetate (DAX) and blends with cranberry (NC) and oregano (OX) natural extracts was evaluated. Furthermore, the same extracts were evaluated against beneficial lactic acid bacteria. The targeted foodborne pathogens evaluated were Escherichia coli O157:H7, Salmonella spp...
September 14, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28888760/an-in-vitro-investigation-of-indigenous-south-african-medicinal-plants-used-to-treat-oral-infections
#13
S Akhalwaya, S van Vuuren, M Patel
ETHNOPHARMACOLOGICAL RELEVANCE: Over a 120 South African medicinal plants are used for the treatment of oral diseases. Despite the vast collection of antimicrobial studies being done on South African plants, there is still limited research on pathogens associated with oral infections. In consultation with the available ethnobotanical literature, this study investigates the antimicrobial efficacy of some South African medicinal plants against oral pathogens. AIM OF THE STUDY: To provide a detailed account of the antimicrobial properties of selected South African medicinal plants used traditionally to treat oral infections...
September 7, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28885049/effect-of-plant-antimicrobial-agents-containing-marinades-on-storage-stability-and-microbiological-quality-of-broiler-chicken-cuts-packed-with-modified-atmosphere-packaging
#14
H-L Alakomi, J Maukonen, K Honkapää, E Storgårds, K-W Quirin, B Yang, M Saarela
The food industry, including the meat industry, is currently looking for natural preservatives to prevent the growth of harmful microbes in foods. The potential of plant-derived antimicrobial extracts to increase the shelf life and to delay the microbiological spoilage of marinated broiler chicken cuts in modified atmosphere packages during cold storage was investigated in this study. We evaluated the impact of aqueous ethanolic extracts of Finnish sea buckthorn berries and lingonberries and supercritical CO2-extracted herbal extracts from an antimicrobial blend and oregano leaves on the shelf life of broiler meat...
October 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28871479/in-vitro-evaluation-and-statistical-optimization-of-antimicrobial-activity-of-prunus-cerasoides-stem-bark
#15
D S Arora, Himadri Mahajan
Nature is a generous source of compounds with the potential for prevention of infections. Antimicrobial screening of aqueous extract from bark of wild Himalayan cherry (Prunus cerasoides) was carried out against various pathogenic microorganisms with inhibition zone ranging from 19 to 24 mm. An optimization strategy, which included classical method and statistical method (RSM), was applied to optimize the effect of process variables. Fifteen percent plant material extracted at 40 °C for 60 min and at its natural pH (4...
September 4, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28869798/antimicrobial-activity-of-plant-extracts-against-the-honeybee-pathogens-paenibacillus-larvae-and-ascosphaera-apis-and-their-topical-toxicity-to-apis-mellifera-adults
#16
Veeranan Chaimanee, Ubonwan Thongtue, Nantaporn Sornmai, Sineenard Songsri, Jeffery S Pettis
AIMS: To explore alternative non-chemical control measures against two honeybee pathogens, Paenibacillus larvae and Ascosphaera apis, thirty-seven plant species were screened for antimicrobial activity. METHODS AND RESULTS: The activity of selected plant extracts was screened using a in vitro disk diffusion assay and the minimal inhibitory concentration (MIC) was determined by the broth microdilution method. The results showed that thirty-six plant extracts had some antibacterial activity on P...
September 4, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28869568/medicinal-plants-based-products-tested-on-pathogens-isolated-from-mastitis-milk
#17
Claudia Pașca, Liviu Mărghitaș, Daniel Dezmirean, Otilia Bobiș, Victorița Bonta, Flore Chirilă, Ioana Matei, Nicodim Fiț
Bovine mastitis a major disease that is commonly associated with bacterial infection. The common treatment is with antibiotics administered intramammary into infected quarters of the udder. The excessive use of antibiotics leads to multidrug resistance and associated risks for human health. In this context, the search for alternative drugs based on plants has become a priority in livestock medicine. These products have a low manufacturing cost and no reports of antimicrobial resistance to these have been documented...
September 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28869082/development-of-botanicals-to-combat-antibiotic-resistance
#18
REVIEW
Pooja D Gupta, Tannaz J Birdi
The discovery of antibiotics in the previous century lead to reduction in mortality and morbidity due to infectious diseases but their inappropriate and irrational use has resulted in emergence of resistant microbial populations. Alteration of target sites, active efflux of drugs and enzymatic degradations are the strategies employed by the pathogenic bacteria to develop intrinsic resistance to antibiotics. This has led to an increased interest in medicinal plants since 25-50% of current pharmaceuticals are plant derived...
August 30, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/28867986/ecdysteroids-production-in-plant-in-vitro-cultures
#19
REVIEW
Barbara Thiem, Małgorzata Kikowska, Michał P Maliński, Dariusz Kruszka, Marta Napierała, Ewa Florek
Ecdysteroids are secondary metabolites, widely distributed in the animal and plant kingdoms. They have a wide range of pharmacological effects in vertebrates, including mammals, most of which are beneficial for humans. Therefore, they have become compounds of interest for the pharmaceutical industry due to their adaptogenic, anabolic, hypoglycaemic, hypocholesterolaemic and antimicrobial activities, which are still being researched. Nowadays, ecdysteroids are present as active ingredients in bodybuilding supplements...
2017: Phytochemistry Reviews: Proceedings of the Phytochemical Society of Europe
https://www.readbyqxmd.com/read/28859156/longterm-storage-of-post-packaged-bread-by-controlling-spoilage-pathogens-using-lactobacillus-fermentum-c14-isolated-from-homemade-curd
#20
Soma Barman, Ranjan Ghosh, Shreya Sengupta, Narayan C Mandal
One potent lactic acid bacterial strain C14 with strong antifungal activity was isolated from homemade curd. Based on morphological as well as biochemical characters and 16S rDNA sequence homology the strain was identified as Lactobacillus fermentum. It displayed a wide antimicrobial spectrum against both Gram-positive and Gram-negative pathogenic bacteria, and also against number of food spoilage, plant and human pathogenic fungi. The cell free supernatant (CFS) of the strain C14 was also effective against the fungi tested...
2017: PloS One
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