نتایج جستجو برای: bioautography

تعداد نتایج: 252  

Journal: :Biocontrol science 2013
Hirokazu Ogihara Fumiko Endou Soichi Furukawa Hiroshi Matsufuji Kouichi Suzuki Hiroshi Anzai

Solvent extracts from the carnivorous plant Dionaea muscipula (Venus flytrap) were prepared using eight different organic solvents, and examined for antibacterial activity against food-related pathogenic and putrefactive bacteria. All solvent extracts showed higher antibacterial activity against gram positive bacteria than against gram negative bacteria. The TLC-bioautography analysis of the ex...

2007
Liliana Scorzoni Tatiane Benaducci Ana Marisa Fusco Almeida Dulce Helena Siqueira Silva Vanderlan da Silva Bolzani

Methodology for testing natural compounds for determination of antifungal activity had been developed with adaptations. The most used are bioautography and agar diffusion with a complex and no defined media. In this study, different methods for determination of antifungal activity of natural products are discussed and the use of M27-A2 microdilution test from CLSI (Clinical and Laboratory Stand...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2003
Gökalp Işcan Fatih Demirci Mine Kürkçüoğlu Merih Kivanç K Hüsnü Can Başer

The essential oil of Heracleum sphondylium L subsp. ternatun (Velen.) Brummit (Umbelliferae) was isolated from crushed seeds by means of hydrodistillation and analyzed by GC and GC/MS. Major components were identified as 1-octanol (50.3%), octyl butyrate (24.6%), and octyl acetate (7.3%). Furthermore, antimicrobial activity of the oil was evaluated using microdilution broth and agar diffusion m...

2017
Cynthia Murakami Inês Cordeiro Marcus Tullius Scotti Paulo Roberto H Moreno Maria Cláudia M Young

Background: Hedyosmum brasiliense Mart. ex Miq. (Chloranthaceae) is a dioecious shrub popularly used in Brazil to treat foot fungi and rheumatism. This work investigated the chemical composition, antifungal, and antioxidant activities of flowers and leaves of H. brasiliense essential oils; Methods: H. brasiliense male and female flowers and leaves were collected at Ilha do Cardoso (São Paulo) a...

2013
Jucélia Barbosa da Silva Vanessa dos Santos Temponi Carolina Miranda Gasparetto Rodrigo Luiz Fabri Danielle Maria de Oliveira Aragão Nícolas de Castro Campos Pinto Antônia Ribeiro Elita Scio Glauciemar Del-Vechio-Vieira Orlando Vieira de Sousa Maria Silvana Alves

The present study evaluated the antioxidant potential of Vernonia condensata Baker (Asteraceae). Dried and powdered leaves were exhaustively extracted with ethanol by static maceration followed by partition to obtain the hexane, dichloromethane, ethyl acetate, and butanol fractions. Total phenols and flavonoids contents were determined through spectrophotometry and flavonoids were identified by...

2015
Yingbo Yang Lihua Gu Ying Xiao Qing Liu Haijun Hu Zhengtao Wang Kaixian Chen

Alpha-glucosidase inhibitors currently form an important basis for developing novel drugs for diabetes treatment. In our preliminary tests, the ethyl acetate fraction of Phlomis tuberosa extracts showed significant α-glucosidase inhibitory activity (IC₅₀ = 100 μg/mL). In the present study, a combined method using Sepbox chromatography and thin-layer chromatography (TLC) bioautography was develo...

2013
ANUPAMA SHARMA AVASTHI SABARI GHOSAL SHARMISHTHA PURKAYASTHA

Orchis latifolia belonging to the family Orchidaceae is extensively used in traditional Indian medicine against a wide spectrum of ailments including dysentery, diarrhoea, chronic fever, wounds, burns, fractures and general weakness. The present study relates to the bioactive extracts from O. latifolia against multidrug resistant (MDR) bacteria and Candida albicans. Methanolic extract of O. lat...

Journal: :Advanced pharmaceutical bulletin 2014
Puji Astuti Sudarsono Sudarsono Khoirun Nisak Giri Wisnu Nugroho

PURPOSE Coleus amboinicus is a medicinal plant traditionally used to treat various diseases such as throat infection, cough and fever, diarrhea, nasal congestion and digestive problems. The plant was explored for endophytic fungi producing antimicrobial agents. METHODS Screening for endophytic fungi producing antimicrobial agents was conducted using agar plug method and antimicrobial activity...

Journal: :iranian journal of pharmaceutical research 0
bahman nickavar department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences javad rezaee department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran azar nickavar aliasghar children’s hospital, iran university of medical sciences, tehran, iran

salvia genus is one of the largest genera of the lamiaceae family. its species have been used for a wide variety of disorders in the local traditional medicine systems. therefore, the genus has been the subject of several phytochemical and biological studies. the aim of the study was to identify the major antioxidant compound(s) from the methanol extract of salvia verticillata using activity-gu...

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