Anti-microbial activity
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The outcomes are to be compared with typical drugs given that compounds are examined against gram-positive and gram-negative strains of bacteria and fungus. Against bacterial strains, products with nitro, methyl, and bromo substituents in the p-position of the benzene ring, as well as products with the nitro group at the m-position, showed very excellent activities against bacterial strains, while compounds with chloro substituent at p-position and m-position demonstrated good activity against the fungal strains Aspergillus niger and Fusarium javanicum.
8p dianmotminh02 03-05-2024 5 1 Download
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In order to explore the importance of the Antheroporum genus in pharmaceutical applications, two bioactivities of A. harmandii plant extracts have been evaluated in this study. Antimicrobial and antioxidant activities of A. harmandii extracts will provide evidences for further chemical composition studies to detect new bioactive compounds from this species.
9p dianmotminh02 03-05-2024 5 2 Download
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Magnolia citrata Noot. & Chalermglin was collected in the Central Highlands of Vietnam and examined for its essential oils’ chemical compositions and antimicrobial activities. The essential oils were obtained from the leaves, twigs, and stem barks of M. citrata using hydrodistillation, then analyzed using Gas Chromatography-Mass Spectrometry (GC-MS) and evaluated for antimicrobial activities.
10p dianmotminh02 03-05-2024 2 2 Download
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The methanol extracts as well as some compounds from this plant exhibited anti-inflammatory, antimicrobial activity, antioxidant, hepatoprotective and anti-cancer effect, and antiosteoporotic. On going to search for bioactive components from the Vietnamese plant, this paper reported the isolation of seven phenolic compounds including one new from the aerial parts of A. ilicifolius. The cytotoxic activity of the isolates against two cancer cell lines (HepG2 and SK-LU1) were also screened and reported herein.
5p dianmotminh02 03-05-2024 7 2 Download
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This study aimed to isolate and identify marine fungi from Bai Tu Long Bay and assess their antimicrobial potential. We successfully isolated twenty strains of marine-derived fungi. The crude extracts from these fungi were tested against pathogenic microorganisms. All twenty strains exhibit some degree of growth inhibition against the tested microorganisms.
9p dianmotminh02 03-05-2024 4 1 Download
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Flavonoids are a diverse group of natural compounds extensively studied in various research articles. They are widely distributed in the plant kingdom and exhibit various biological activities, including antioxidant, antiinflammatory, anticancer, antiviral, and antimicrobial effects. The genus Knema Lour., which contains many species in Southeast Asia, has been traditionally used to treat various ailments. The current review aims to provide a comprehensive update on the isolation of flavonoids and other secondary metabolites from the genus Knema Lour. between 1978 and 2022.
15p dianmotminh02 03-05-2024 5 2 Download
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This history of antimicrobials is marked with impressive discoveries, the majority of which have their origin in natural products. However in this work, the antimicrobial activity of β- nitrostyrenes and related compounds of synthetic origin is reviewed and investigated with a particular focus on the influence of fluorine functionality. Various fluorinated β-methyl-β-nitrostyrene compounds were prepared, their minimum inhibition concentration in cultures of Gram positive, Gram negative and a fungus and their lipophilicity was determined.
133p runthenight05 01-03-2023 4 3 Download
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The growth of waterborne pathogens and the discharge of partially treated or non-treated chemical waste has become a severe environmental and health risk. Conventional wastewater treatment methods have become less effective, and most current techniques require multiple stages for the disinfection of antimicrobial-resistant (AMR) pathogens and the combined removal of toxic, non-biodegradable, or emerging priority pollutants from wastewater.
273p runordie3 06-07-2022 15 2 Download
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The diversity of medicinal plants in Vietnam is a rich source to develop novel health products. In this study, the antioxidant and antimicrobial activities of ethanolic extracts of Pluchea indica, Drynaria fortunei, Stephania glabra, lemongrass (Cymbopogon citratus) and lime (Citrus aurantifolia) mixture, and ginger (Zingiber officinale) and kumquat (Citrus japonica) mixture, were evaluated.
7p guitaracoustic02 08-12-2021 12 0 Download
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The objectives of the thesis: Isolation and determination of chemical structures of the isolated compounds from the leaves of Excoecaria agallocha L. and Excoecaria cochinchinensis Lour.; studied the cytotoxic, anti-inflammatory, and antimicrobial activities of the isolated compounds to find the bioactive compounds.
27p closefriend09 16-11-2021 26 3 Download
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Researching objectives: Describing some biological characteristics and distribution of Zingiber and Hedychium species from north-central Vietnam; determining the essential oil chemical composition; antimicrobial and antimosquito larvae activities of essential oils of some Zingiber and Hedychium species from north-central Vietnam.
27p beloveinhouse01 15-08-2021 22 5 Download
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The purpose of the thesis research: Synthesis of new complexes of platinum and rare-earth elements containing quinoline's derivatives that are resistant to cancer cells, high antimicrobial activity or good fluorescence.
27p tunelove 10-06-2021 17 4 Download
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Thesis aims: Isolation and screening for Vietnam antimicrobial marine-derived actinobacteria strains. Isolation and structure elucidation of compounds from 2 promising isolated actinobacteria strains. Determination the antimicrobial activities of isolated compounds.
26p extraenglish 24-05-2021 25 3 Download
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Isolation and screening for Vietnam antimicrobial marine-derived actinobacteria strains; isolation and structure elucidation of compounds from 2 promising isolated actinobacteria strains; determination the antimicrobial activities of isolated compounds.
26p capheviahe26 25-01-2021 37 5 Download
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This paper focuses on researching of Spilanthes acmella (L.) Murr. callus culture. Different parts of the plant such as leaf, stem, flower and root have been cultured. Based on antimicrobial activity (5 - 20 mm on Staphylococcus and Vibrio) and radish root tip inhibition (82%), the callus derived from flowers is the best.
6p larachdumlanat127 20-12-2020 10 2 Download
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5-(4-Bromophenyloxymethyl)-1,3,4-oxadiazol-2-thiole (3a) and 5-(4 -methylphenyloxymethyl)-1,3,4-oxadiazol-2-thiole (3b) were synthesized starting from 4-bromophenol and 4-methylphenol (p-crezol), respectively. The 5-aryl- -oxymethyl-1,3,4-oxadiazole-2-thiole (3a, b) were treated with N-aryl-2-chloro- -acetamides to give six corresponding new N-aryl-[(5-aryloxymethyl-1,3,4- -oxadiazol-2-yl)sulfanyl]acetamides (4a1-3, 4b1-3).
7p tamynhan5 10-12-2020 7 2 Download
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This fraction showed the highest antioxidant activity by dose-dependent free radical scavenging action (IC50 69.50 ± 1.55 µg/mL). R. tomentosa leaf extracts, especially the n-hexane fraction, also exhibited strong antimicrobial activity against Gram-negative and Gram-positive bacteria and fungi as well as moderate inhibitory effect on L-DOPA (L-3,4-dihydroxyphenylalanine) oxidase activity of tyrosinase in the melanin biosynthesis pathway.
9p tamynhan8 04-11-2020 13 1 Download
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Lactobacillus sp. in the digestive tract are capable of producing H2O2 to inhibit the growth of harmful bacteria and balance the gut microflora. In this study, we have isolated 115 strains of Lactobacillus spp. from stool samples of healthy people in Ha Noi.
10p tamynhan10 24-10-2020 13 1 Download
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This study therefore sought to determine the antibiotic susceptibility pattern of the uropathogenic isolates in UTIs and to identify the probable antibiotic alternatives to guide antimicrobial therapy at the Brong-Ahafo Regional Hospital-Sunyani.
9p kequaidan7 01-09-2020 7 1 Download
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In this study, the antimicrobial activity and phytochemical constituents of neem leaves and lemon grass oil extracts were evaluated. Oil extracts of neem leaves and lemon grass were obtained by solvent extraction method using hexane and ethanol.
8p lucastanguyen 01-06-2020 38 4 Download