Carboxymethylated
Mostrando 1-12 de 59 artigos, teses e dissertações.
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1. Evaluation of some residual bioactivities of microencapsulated Phaseolus lunatus protein fraction with carboxymethylated flamboyant (Delonix regia) gum/sodium alginate
Recent studies have shown the beneficial effect of peptides, an unexploited source could be Phaseolus lunatus being an important raw material for those functional products in order to improve their utilization. In addition to improve the beneficial effect of bioactive peptides the microencapsulation could be a way to protect the peptides against the environm
Food Sci. Technol. Publicado em: 2014-12
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2. Modified cassava starches as potential corrosion inhibitors for sustainable development
Activated (AS) and carboxymethylated (CMS0.24) cassava starch derivatives were studied as corrosion inhibitors for carbon steel XC35 in a 200 mgL-1 NaCl solution. They were characterized by back titration and Fourier Transform Infrared Spectroscopy (FTIR). Electrochemical techniques were used to evaluate the inhibitive properties of starches at room temperat
Mat. Res.. Publicado em: 02/08/2013
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3. Biomacromoléculas carboximetiladas: atuação como agentes de estabilização de suspensões aquosas de alumina / Carboxymethylated biomacromolecules: used as stabilizing agents for aqueous alumina suspensions
A estabilização de suspensões de alumina é essencial para a fabricação de vários produtos, especialmente na indústria cerâmica e com o controle das propriedades que se pode atingir usando polímeros como agentes estabilizantes. Na busca de processos industriais que preservem o meio ambiente, polímeros sintéticos podem ser substituídos por biopol�
Publicado em: 2010
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4. Spheres of gum of the cajueiro and quitosana for release of fÃrmacos / Esferas de goma do cajueiro e quitosana para liberaÃÃo de fÃrmacos
Cashew gum based beads were produced through interpenetrating polymer networks and polyelectrolyte complexation techniques. Beads of chitosan (CH) and cashew gum (CG)/CH were further crosslinked with genipin obtained from âgenipapoâ fruits. This crosslinking agent was characterized by proton and carbon nuclear magnetic resonance and infrared spectroscopy.
Publicado em: 2007
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5. Primary Structure of Somatostatin, A Hypothalamic Peptide That Inhibits the Secretion of Pituitary Growth Hormone
Somatostatin, a peptide isolated from ovine hypothalamic tissue that inhibits the release of radioimmunoassayable growth hormone in vitro from rat or human pituitary cells or in vivo in rats, has the primary structure [Formula: see text]. The structure was established by submitting the carboxymethylated peptide, the carboxymethylated tryptic digest, and the
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6. Formation of the four isomers of hen egg white lysozyme containing three native disulfide bonds and one open disulfide bond
Reduced partially carboxymethylated hen egg white lysozyme (mucopeptide N-acetylmuramoylhydrolase; EC 3.2.1.17) (approximately 0.8 mol of [1-14C]carboxymethyl groups) was air oxidized at pH 8.0 and 37° in the presence of 1.5 mM 2-mercaptoethanol for 36 hr. Gel filtration of this product gave the lower (native) and higher hydrodynamic volume forms, both cont
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7. Complete amino acid sequence of pig kidney fructose-1,6-bisphosphatase.
The covalent structure of the pig kidney fructose-1,6-bisphosphatase (D-fructose-1,6-bisphosphate 1-phosphohydrolase, EC 3.1.3.11) subunit has been determined. Placement of the 335 amino acid residues in the polypeptide chain was based largely on automated Edman degradation of eight purified cyanogen bromide fragments generated from the S-carboxymethylated p
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8. Carbon Dioxide Hydration Activity of Carbonic Anhydrase: Kinetics of Alkylated Anhydrases B and C from Humans*
A stop-flow kinetic study was performed on the carbon dioxide hydration activity of the human carbonic anhydrase B isoenzyme carboxymethylated at its histidine200, and of the human C isoenzyme carboxyketoethylated at its histidine63. The Michaelis-Menten parameters determined between pH 5.6 and 8.7 showed striking differences between the native and the alkyl
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9. Lipid-Protein Interactions in High Density Lipoproteins
Delipidated high density lipoprotein (apo-HDL), isolated apolipoproteins apoA-I and apoA-II, S-carboxymethylated apoA-II, apoC-III, the NH2- and COOH-terminal CNBr peptides of apoA-II, and the COOH-terminal CNBr peptide of apoA-I were recombined in vitro with [N-C3H3-choline]phosphatidylcholine (PC) and [N-14CH3-choline]sphingomyelin (SPM). The lipid-protein
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10. Preparation, properties, and plasma retention of human hemoglobin derivatives: comparison of uncrosslinked carboxymethylated hemoglobin with crosslinked tetrameric hemoglobin.
Human hemoglobin A has been crosslinked by diisothiocyanatobenzenesulfonate to give a limited number of products in a yield of approximately 70%. The predominant product was crosslinked between subunits within a tetramer and had a Mr of 64,000; no higher Mr species were formed. This product had one crosslink per tetramer located between the NH2 termini of it
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11. Isolation of the penicillin-binding peptide from D-alanine carboxypeptidase of Bacillus subtilis.
The D-alanine carboxypeptidase of B. subtilis is a membrane-bound enzyme which is inhibited by penicillins and binds them covalently. The enzyme has been labeled with [14C]- or [35S]penicillin. After tryptic or Pronase digestion of the labeled, denatured, reduced, and carboxymethylated enzyme, a radioactive peptide was isolated in each case. The amino acid c
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12. Human plasma fibrinogen heterogeneity: evidence for an extended carboxyl-terminal sequence in a normal gamma chain variant (gamma').
Two types of normal human plasma fibrinogen--peak 1 and peak 2--are distinquishable by DEAE-cellulose gradient elution chromatography. The elution characteristics of peak 2 fibrinogen, which amounts to about 15% of the total, are attributable to the presence of a gamma chain variant, gamma', which is more negatively charged than gamma chains and makes up abo