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Purification and characterization of xylanases from Aspergillus giganteus
(2004-04-20)
A strain of Aspergillus giganteus cultivated in a medium with xylan produced two xylanases (xylanase I and II) which were purified to homogeneity. Their molar mass, estimated by SDS-PAGE, were 21 and 24 kDa, respectively. ...
Effect of Clay Content and Speed Screw Rotation on the Crystallization and Thermal Behaviors of Recycled PET/Clay Nanocomposites
(Amer Scientific PublishersStevenson RanchEUA, 2009)
Efficacy of sodium hypochlorite and quaternary ammonium compounds on yeasts isolated from apple juice
(Wiley Blackwell Publishing, Inc, 2012-02)
In this work, we evaluated the effectiveness of sodium hypochlorite and a commercial quaternary ammonium compound against four wild yeast strains in their different growth forms: planktonic, sessile and forming microcolonies. ...
A simple spectrophotometric method for the determination of captopril in pharmaceutical preparations using ammonium molybdate
(Editora Unesp, 2010-09-01)
Um método simples, rápido e sensível para a determinação espectrofotométrica de captopril (CPT) em formulações farmacêuticas é proposto. Este método é baseado na reação de redução do molibdato de amônio, na presença de ...
Ammonium piperidine-1-carbodithioate
(WILEY-BLACKWELL, 2011)
The title compound, NH(4) +center dot C(6)H(10)NS(2) -, is composed of an ammonium cation and a piperidine-1-carbodithioate anion which exhibits positional disorder. The atoms of the ring have a structural disorder and ...
Structure-Activity Relationship for Quaternary Ammonium Compounds Hybridized with Poly(methyl methacrylate)
(AMER CHEMICAL SOC, 2011)
Hybrid films from poly (methylmethacrylate) (PMMA) and dioctadecyldimethylammonium bromide (DODAB), cetyltrimethylammonium bromide (CTAB), or tetrapropylammonium bromide (TPAB) were characterized by determination of ...
Antimicrobial Properties and Cytotoxicity of an Antimicrobial Monomer for Application in Prosthodontics
(WILEY-BLACKWELLHOBOKEN, 2012)
Purpose: This study aimed to investigate the antimicrobial properties and cytotoxicity of the monomer methacryloyloxyundecylpyridinium bromide (MUPB), an antiseptic agent capable of copolymerizing with denture base acrylic ...