نتایج جستجو برای: نانوذرات بیوسنتز سیتوتوکسیسیته mic mbc روش mtt

تعداد نتایج: 402457  

Journal: :Padjajaran Journal of Dentistry 2022

Introduction: Streptococcus sanguinis is a facultative anaerobic Gram-positive bacteria known as pioneer that plays role in creating the biofilm oral cavity. Strawberry fruit (Fragaria x ananassa) an edible widely used for study their active compound synergy to improve health. This aims analyse antibacterial activity of strawberry against S. (ATCC 10556). Methods: An explorative was conducted w...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2011
Markku Lehtinen Eila Pelttari Hannu Elo

We report the antimicrobial activity of formylchromones. These compounds are remote structural analogues of nalidixic acid and quinolone antibiotics, and their activity was investigated by a simple micro-scale method designed for the determination of minimal inhibitory concentrations (MIC) of drug candidates and antibiotics against aerobic bacteria and yeasts. Minimal bactericidal and fungicida...

2017
How-Yee Lai Yau-Yan Lim Kah-Hwi Kim

BACKGROUND Blechnum orientale Linn. (Blechnaceae), a fern, is traditionally used in the treatment of various ailments, such as skin diseases, stomach pain, urinary bladder complaints, and also as a female contraceptive. Previously, we reported a strong radical scavenging activity, antibacterial activity and cytotoxicity against HT29 colon cancer cells by aqueous extract of B. orientale. OBJEC...

2010

The antioxidant and antimicrobial activities of the extracts from peel, leaves, and bark of mangosteen (Garcinia mangostana L.), and some essential oils such as cinnamon and citrus were investigated. The antioxidant activities (IC50) of peel, leaves, and bark extracted, which were evaluated by DPPH method, were 5.94, 9.44, and 6.46 μg/ml, respectively. Either cinnamon or citrus essential oil sh...

2012
Lívia Câmara de Carvalho Galvão Vivian Fernandes Furletti Salete Meyre Fernandes Bersan Marcos Guilherme da Cunha Ana Lúcia Tasca Góis Ruiz João Ernesto de Carvalho Adilson Sartoratto Vera Lúcia Garcia Rehder Glyn Mara Figueira Marta Cristina Teixeira Duarte Masarahu Ikegaki Severino Matias de Alencar Pedro Luiz Rosalen

This study aimed to evaluate the activity of essential oils (EOs) against Streptococcus mutans biofilm by chemically characterizing their fractions responsible for biological and antiproliferative activity. Twenty EO were obtained by hydrodistillation and submitted to the antimicrobial assay (minimum inhibitory (MIC) and bactericidal (MBC) concentrations) against S. mutans UA159. Thin-layer chr...

Journal: :Antimicrobial agents and chemotherapy 1997
I Lutsar A Ahmed I R Friedland M Trujillo L Wubbel K Olsen G H McCracken

Adequate concentrations of beta-lactam antibiotics in cerebrospinal fluid (CSF) are difficult to achieve for meningitis caused by drug-resistant Streptococcus pneumoniae. Ceftriaxone in dosages of 150 or 400 mg/kg of body weight per day, given in one or two doses, was used for the treatment of experimental highly cephalosporin-resistant (MIC and MBC, 4 microg/ml) pneumococcal meningitis. The ba...

Journal: :As-Syifaa : jurnal farmasi 2022

The wole woe plant empirically in the community Central Halmaherah district is used to treat various diseases, such as breast anticancer, cysts, vaginal discharge, diabetes mellitus, wounds, dysentery, cholesterol, and uric acid, which thought have bioactive compounds, that antibacterial compounds. Therefore, a study was conducted determine potential of ethanol extract stems against Pseudomonas...

Journal: :Sains Malaysiana 2021

Syzygium filiforme var. is a plant variety from dicotyledonous family (Myrtaceae). Phytochemical studies on S. stem bark have successfully isolated and characterized arjunolic acid (1), alphitolic (2), betulinic (3), ursolic (4), 3-methyl ester (5), β-sitosterol (6) stigmasterol (7). The inhibitory activities against free radical, starch, bacteria for major compounds were tested by using DPPH, ...

2017
Zahra Golestannejad Shahin Gavanji Elmira Mohammadi Mehdi Bahrani Fatemeh Rezaei Behrouz Larki Amin Mojiri Azizollah Bakhtari

Background and aims: Tooth decay is one of the most common chronic diseases around the world and this problem is the result of variety of different bacteria. Streptococcus mutants is one of the most important bacteria which is related to this disease. Finding new effective antibacterial agents is an important area in bioscience for fighting and controlling bacterial infections. Essential oils a...

Journal: :Acta cirurgica brasileira 2015
Sávia Perina Portilho Falci Manoel Araujo Teixeira Pablo Ferreira das Chagas Beatriz Bertolaccini Martinez Ana Beatriz Alkmim Teixeira Loyola Lydia Masako Ferreira Daniela Francescato Veiga

PURPOSE To extract the Melaleuca sp. oil and to assess its in vitro inhibitory effect against Staphylococcus aureus isolates obtained from lower limb wounds and resistant to several antibiotics. METHODS A total of 14 test-tubes containing Mueller-Hinton broth were used to determine the Minimum Inhibitory Concentration (MIC). The following concentrations of the Melaleuca sp. oil were added to ...

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