Calcium Chloride
Mostrando 37-48 de 481 artigos, teses e dissertações.
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37. Solubility and Seeded Metastable Zone width of functional sugar L-arabinose
L-arabinose is widely used in food, medicine, chemistry, and biology fields; however, solubility and seeded metastable zone width (MSZW) of L-arabinose have not been reported in the literature. In this paper, solubility and MSZW of L-arabinose in aqueous solution were determined. Solubility of L-arabinose was measured in the range of 20-68 °C by a conventio
Food Sci. Technol. Publicado em: 2015-03
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38. Characterization of Leiurus abdullahbayrami (Scorpiones: Buthidae) venom: peptide profile, cytotoxicity and antimicrobial activity
Background Scorpion venoms are rich bioactive peptide libraries that offer promising molecules that may lead to the discovery and development of new drugs. Leiurus abdullahbayrami produces one of the most potent venoms among Turkish scorpions that provokes severe symptoms in envenomated victims. Methods In the present study, the peptide profile of the v
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 02/12/2014
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39. Evaluation of cation-anion diets in calcium metabolism in ruminants
The objective of this study was to evaluate the use of the dietary cation-anion balance (DCAB) on the calcium metabolism in male Nellore steers with a mean age of 10 months. Three experimental diets were tested: a cationic diet, a diet consisting of Tifton hay only, and an anionic diet with +15.2, +23.9 and −10.0 mEq/100 g DM of DCAB values in the diet. Th
R. Bras. Zootec.. Publicado em: 2014-11
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40. Strontium Incorporation on Microspheres of Alginate/β-tricalcium Phosphate as Delivery Matrices
Strontium (Sr) is known to positively affect the mechanism of bone remodelling. Consequently, calcium phosphate bioceramics associated with alginate matrices containing strontium could improve bone regeneration due to gradual strontium release. This work aims to incorporate Sr on microspheres of alginate (ALG)/β-tricalcium phosphate (β-TCP) and evaluates t
Mat. Res.. Publicado em: 01/07/2014
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41. Floculação de Chlorella sp. produzida em concentrado de dessalinização e estudo de método de extração de lipídeos intracelulares
Chlorella sp. was used to assess algal lipid production with concentrated desalination. In order to investigate the action of the flocculating agent calcium chloride and pH, a Box-Behnken Design and a Central Composite Design (CCD) were carried out. Also, Soxhlet and Supercritical Fluid Extraction (SFE), with and without sonication lipid extraction methods,
Quím. Nova. Publicado em: 2014
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42. Immobilization of phospholipase a1 using a polyvinyl alcohol-alginate matrix and evaluation of the effects of immobilization
The paper presents the synthesis and performance of an immobilized phospholipase A1 with practical application for oil degumming. The polyvinyl alcohol (PVA) had a number of properties indicating this polymer as a good enzyme carrier. The combination with alginate made a macro-porous structure, evidenced by SEM analyses. When the process time in boric acid s
Braz. J. Chem. Eng.. Publicado em: 2013-12
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43. The sealing ability of MTA apical plugs exposed to a phosphate-buffered saline
OBJECTIVE: The aim of this study was to evaluate the influence of exposure of the mineral trioxide aggregate (MTA) - with and without calcium chloride (CaCl2) - to phosphate-buffered saline (PBS) on the apical microleakage using a glucose leakage system. MATERIAL AND METHODS: Sixty root segments were randomly divided into 4 experimental groups (n=15). Af
J. Appl. Oral Sci.. Publicado em: 2013-07
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44. Recovery of copper (II) absorbed in biomass of Cladosporium cladosporioides
The biosorption process, characterized by the use of biomass for removing metals from aqueous solutions, is an attractive technology using inactive and dead biomasses to remove heavy metals from aqueous solutions in the absence of metabolic activity necessary for intracellular accumulation. The desorption process, which concentrates the metal previously abso
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-06
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45. Enhancement of chitosanase production by cell immobilization of Gongronella sp. JG
Chitosanase production of Gongronella sp. JG cells immobilized in calcium alginate gel and polyurethane foam was compared with that of the free cells, there was a 60% increase in the enzyme yield (2429 U/L) compared to the highest yield obtained from free cells (1513 U/L). The optimal immobilization parameters (concentrations of sodium alginate, calcium chlo
Braz. J. Microbiol.. Publicado em: 09/04/2013
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46. Biodegradable sodium alginate and lignosulphonic acid blends: characterization and swelling studies
In this article, Sodium alginate and Lignosulphonic acid blends were prepared in different weight ratios by solution casting method. Swelling experiments were conducted for Sodium alginate and its blends by adding calcium chloride for various intervals in a pH 7.4 medium. The strength of the films increases after their treatment with CaCl2 at higher interval
Polímeros. Publicado em: 01/02/2013
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47. Bioadsorção e dessorção dos íons Cd POT. 2+ , Cu POT. 2+ , Ni POT. 2+ , Pb POT. 2+ e Zn POT. 2+ pela macrófita aquáica Azolla pinnata / Biosorption and desorption of Cd POT. 2+ , Cu POT. 2+ , Ni POT. 2+ , Pb POT. 2+ e Zn POT. 2+ by the aquatic macrophyte Azolla pinnata
Research in the technology field has been looking for evaluating efficient and economic techniques and/or process for effluents that contains heavy metal. The biodsorption process has been seemed as a good alternative to the existing technology. This work had the aim to investigate the use of Azolla pinnata macrophyte as biosorbent of five metallic ions: Cd2
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/11/2012
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48. Imobilização da tanase de Paecilomyces variotii e ação em reações de hidrólise e síntese / Immobilization of tannase from Pecilomyces variotii and reactions of hydrolysis and synthesis
Tannin acyl hydrolase (TAH) known as tannase (EC 3.1.1.20) is an enzyme that hydrolyzes esters of hydrolysable tannins producing gallic acid and glucose as the reaction medium is polar. However, the literature indicates their ability to produce also gallic acid esters in organic media. Our research group has isolated a fungus, Paecilomyces variotii, tannase
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/06/2012