Results 91 to 100 of about 73,919 (251)

Purification and Characterization of Streptomyces sp. IK Chitinase

open access: yesIndonesian Journal of Biotechnology, 2015
Streptomyces sp. IK isolated from compost inoculants, could produce extra cellular chitinase in a medium containing 0.2% (w/v) colloidal chitin, fermented for 96 hours at 30oC.
Sebastian Margino   +2 more
doaj  

Purification and characterization of alginate lyase from locally isolated marine Pseudomonas stutzeri MSEA04 [PDF]

open access: yes, 2016
An alginate lyase with high specific enzyme activity was purified from Pseudomonas stutzeri MSEA04, isolated from marine brown algae. The alginate lyase was purified by precipitation with ammonium sulphate, acetone and ethanol individually.
Beltagy, Ehab A.   +3 more
core   +1 more source

The study of correlations between B-Lactamase and protein A in Staphylococcus aureus

open access: yesMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2000
Objective: Staphylococcus aureus is the type species and pathogen of human. There is some factors that determines the virulence of bacteria, but protein A and B-Lactamase are the most important factors.
R Kasra Kermanshahi   +2 more
doaj  

Two acid RNases from Dactylis glomerata seeds. Purification, properties and effect of polyamines and lectins on their activity

open access: yesActa Societatis Botanicorum Poloniae, 2014
Two glycoproteidic acid RNases (RNase I and RNase II) were obtained and purified from the seeds of Dactylis glomerata by extraction with acetate buffer, fractionation with ammonium sulfate, ion-exchange chromatography on DEAE-cellulose, DEAE-Sphadex ...
Janina Wiśniowska   +1 more
doaj   +1 more source

Bacteriochlorophylls modified at position C-3 [PDF]

open access: yes, 1992
[3-Vinyl]-bacteriochlorophyll a and related pigments modified at C-3 and/or C-132 have been synthesized from bacteriochlorophyll a. The reactivity at C-3 is strongly influenced by the C-132 substituent, and vice versa. Spectroscopical data and comparison
Cmiel, Edmund   +4 more
core   +1 more source

PURIFICATION AND CHARACTERIZATION OF PEROXIDASE FROM MORINGA OLEIFERA L. LEAVES

open access: yesBioResources, 2012
Peroxidase catalyzes the oxidation of various electron donor substrates such as phenol and aromatic amines in the presence of hydrogen peroxide. In this study, peroxidase was purified 164-fold from the leaves of Moringa oleifera L. with a recovery of 28%
Shahanaz Khatun,   +5 more
doaj  

Isolation, Characterization and Purification of α-Galactosidase From Peas [PDF]

open access: yes, 2012
In India, the peas are cultivated on a large scale. The α-galactosidase enzyme has principle applications in food industries and in the medical field. The α-galactosidase enzyme was purified from dry peas (Pisum sativum).
Mohite, S. N. (Shweta)   +1 more
core  

Regulation of the \u3cem\u3eEscherichia coli\u3c/em\u3e Tryptophan Operon by Early Reactions in the Aromatic Pathway [PDF]

open access: yes, 1970
7-Methyltryptophan (7MT) or compounds which can be metabolized to 7MT, 3-methylanthranilic acid (3MA) and 7-methylindole, cause derepression of the trp operon through feedback inhibition of anthranilate synthetase. Tyrosine reverses 3MA or 7-methylindole
Held, William A., Smith, Oliver H.
core   +1 more source

Evaluation of Antimicrobial Activity of Glucose Oxidase from Aspergillus niger EBL-A and Penicillium notatum

open access: yesBrazilian Archives of Biology and Technology, 2013
This work aimed to study the production and purification of glucose oxidase by Aspergillus niger and Penicillium notatum using corn steep liquor as the substrate and evaluate its antimicrobial activity for use in pharmaceutical and food industries.
Muhammad Anjum Zia   +3 more
doaj  

Isolation and Partial Purifiction of Arginase from Sera of Women with Uterine Fibroids

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
The first aim of the present study was performed to assay the activity of arginase in sera of women with uterine fibroid..   This study consisted of(50) women with uterine fibroid as patient's group  and (30) healthy women as control group.
Taghreed U. Mohammd   +2 more
doaj  

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