cyanobacteria have been considered due to producuction of types of secondary metabolites and antimicrobial compounds. this research designated for optimization of bg11 culture medium to increase the antifungal activity of cyanobacterium sp. pgu1 against the plant pathogenic fungi, fusarium oxysporum f. sp lycopersici and rhizoctonia solaniag2-2-iiib. cyanobacterium was isolated from the persian...

Introduction. Cellulose-containing parts of herbs are an excellent source alternative energy and can be used to produce biological ethanol. The present research aims at improving this fundamental promising area biotechnology. It introduces a new consortium microorganisms that saccharify while fermenting the substrate.
 Study objects methods. featured technical cellulose obtained from Misca...

Fluvoxamine maleate is a selective serotonin reuptake inhibitor, which is used for the treatment of different types of depressive disorders. In the present study, a stability indicating HPLC method was developed and validated for the determination of fluvoxamine maleate. The chromatographic separation was carried out using a Nova-Pak CN column and a mixture of K2HPO4 50 mM (pH 7.0) and acetonit...

After freezing and thawing, Pseudomonas aeruginosa harboring a drug resistance plasmid (Hg , Strep ), became acutely sensitive to mercuric ions but not to streptomycin in the plating medium. Its sensitivity to both agents in the plating medium became more pronounced, suggesting a synergistic effect of the mercuric ions with streptomycin. This freeze-thaw-induced sensitivity was transient and ca...

Application of a method of chemical screening2*, which based on the prior work of Zahner et al.3\ gave rise to the detection, isolation and structure elucidation of two new angucyclinones4) exhibiting biological activity. In addition, the known compounds 6-deoxy-8-0-methylrabelomycin (3)5'6) and X-14881 E (4)7) were detected in the same culture broth. The producing organism Streptomyces sp. (DS...

The present study focused on fermentative butyric acid production by Clostridium tyrobutyricum from pre-treated and hydrolysed wheat straw (PHWS) based on continuous operation mode and in situ acids extraction by reverse electro enhanced dialysis (REED). Different dilutions of PHWS in a synthetic medium (60-100 % v/v) were tested. It was found that continuous fermentation of PHWS greatly enhanc...

Article history: Received on: 29/04/2013 Revised on: 02/06/2013 Accepted on: 17/06/2013 Available online: 27/06/2013 This study reports the antibacterial activity of coral reef associated bacteria against bacterial pathogens and optimization of metabolite production. Twelve morphologically different bacterial were isolated from stony coral reef collected from Rameshwaram coastal area, Tamil Nad...

Metacordyceps yongmunensis is a newly reported species from Korea, which is very similar to Cordyceps species in morphological characters. It grows on large lepidopteran pupa, and numerous white stromata grow on a single host. Mycelial growth characteristics of M. yongmunensis isolates were studied in different media and at different temperatures. Also, different carbon sources, nitrogen source...

Four lactobacilli strains (Lactobacillus bulgaricus, Lactobacillus acidophilus, Lactobacilus casei and Lactobacillus reuteri) were grown in MRS broth and three lactococci strains (Streptococcus thermophilus, Lactococcus lactis subsp. Lactis and Lactococcus lactis subsp. lactis biovar. diacetilactis) were grown in M17 broth. L. reuteri and S. thermophilus were chosen on the basis of the best mea...