نتایج جستجو برای: the activity against gram

تعداد نتایج: 16314999  

Journal: :novelty in biomedicine 0
yasaman saee department of microbiology,islamic azad university , pharmaceutical sciences branch,tehran,iran masoud dadashi department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, iran gita eslami department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, iran hossein goudarzi department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, iran soudabeh taheri department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, iran fatemeh fallah department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, iran

background: many efforts have been done to find effective agents against resistant pathogens. cuminum cyminum l. (cumin) is an aromatic plant within the apiaceae family. it has a variety of purposes and demonstrates antimicrobial and antioxidant properties. this study evaluated the activity of c. cyminum extract and essential oil against bacterial isolates which cause urinary tract infection, i...

Journal: :iranian journal of pharmaceutical sciences 0
seyed hamid reza alavi department of pharmacognosy, faculty of pharmacy and medicinal plant research center narguess yassa department of pharmacognosy, faculty of pharmacy and medicinal plant research center mohamad reza fazeli department of drug and food control, faculty of pharmacy, tehran university of medical sciences, tehran, iran

the essential oil of peucedanum ru t h e n i c u m fruits, obtained by hydrodistillation, was analyzed by gas chromatography and gas chromatography mass spectrometry. among the 31 identified constituents accounting for 83.9% of the total oil, the major components were 1,8-cineole (11.15%), camphor (5.86%), z-carveol (6.88%), l-carvone (5.61%), 8,9-dehydroisolongifolene (11.35%), caryophyllene o...

Azadeh Manayi Fatemeh Fouladi Ladan Salimi Mohammad Reza Fazeli Narguess Yassa, Noor Sabri Seyed Hamid Reza Alavi, Zahra Tofighi

       Antimicrobial activity of the polar and nonpolar extracts of the roots and aerial parts of Peucedanum ruthenicum M. Bieb., Johreniopsis seseloides (C. A. Mey.) Pimenov and Cervaria cervariifolia (C. A. Mey.) Pimenov were examined against gram-positive and gram-negative bacteria. The polar extracts of the roots and aerial parts displayed no activity against bact...

Journal: :journal of arthropod-borne diseases 0
hamid reza basseri department of medical entomology, school of public health, tehran university of medical sciences, tehran, iran amir dadi-khoeni department of biology, payame noor university, tehran, iran ronak bakhtiari departmet of photobiology, school of public health, tehran university of medical sciences, tehran, iran mandan abolhassani department of medical entomology, school of public health, tehran university of medical sciences, tehran, iran reza hajihosseini-baghdadabadi department of biology, payame noor university, tehran, iran

background: antimicrobial peptides play a role as effectors substances in the immunity of vertebrate and inverte­brate hosts. in the current study, antimicrobial peptide was isolated from the haemolymph of the american cock­roach, periplaneta americana . methods: micrococcus luteus as gram-positive bacteria and escherichia coli as gram-negative bacteria were candi­date for injection. induction ...

Journal: :iranian journal of pharmacology and therapeutics 0
sushil bhargava

sudarshan churna (sc) is very potent ayurvedic medicine ; composed of 42 medicinal plants, which is used traditionally in treatment of malaria, viral fever, and bacterial infection. the present study was designated to evaluate the antimicrobial activity of aqueous extract of sudarshan churna (asc) using the paper disc diffusion method. the asc was found active against the gram-negative bacteria...

Aim: A variety of Paracetamol derivatives as mannich bases were prepared through mannich reaction by reacting Paracetamol as compound containing active hydrogen, substituted benzaldehyde, morpholine as secondary amine compound and small amount of conc. HCl as catalyst. A simplistic one-pot method under mild conditions has been developed for the synthesis of all the compounds and they were chara...

بیطرف, امیر, زارع زردینی, هادی, طلوعی نیا, بهناز, هاشمی, اعظم,

Introduction: Today, research in the field of antimicrobial peptides is active. Thus, the aim of this study is to purify and determine biochemical properties (especially antimicrobial effect) of new antimicrobial peptides from skin secretions of bufo kavirensis. Methods: This is a descriptive study. The skin secretions of bufo was purified by biochemical manners and antimicrobial effects was ...

A. Foroumadi M. H. Moshafi M. Rezaei M. Saeedi M. Sayadi N. Mohammadhosseini N. Shariatifar S. Moghimi

Food poisoning has been emerged as a worldwide health issue and related illness in both developed and developing countries confirms its significance as an important public health priority.In vitro antibacterialevaluationof nine fluoroquinolone derivatives against food borne bacteria including Gram-positive (Staphylococcus aureus) and Gram-negative (Salmonella enterica, Escherichia coli, Yersini...

A.R Foromadi M Rajaei M.H Moshafi

quinolones are broad-spectrum antibacterial agents.they have many clinical uses which are increasing.quinolones exert antibacterial activity primarily by inhibiting bacterial DNA gyrase.the inhibition of DNA gyrase by the quinolones are greatly influenced by the nature of the C-7 substituent on the quinolones molecule.substitution of bulky functional groupd is also possible in C-7 position.furt...

Journal: :جنگل و فرآورده های چوب 0
معصومه ملایی کارشناس ارشد علوم و صنایع خمیر و کاغذ، گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران محمد آزادفلاح استادیار، گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران فرامرز خدائیان چگینی دانشیار گروه علوم و مهندسی صنایع غذایی، دانشکدة مهندسی بیوسیستم، دانشگاه تهران، کرج، ایران یحیی همزه استاد، گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

it is possible to develop new biodegradable active packaging by coating biopolymers on paper-based packaging material and also incorporating proper antimicrobial agents into coating structure. in this study bacterial contamination of two commercial cardboard were evaluated.in order to manufacture an appropriate antibacterial packaging material, coating of chitosan-poly vinyl alcohol blends with...

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