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Thermodynamic studies of partitioning behavior of lysozyme and conalbumin in aq...
Sousa, Rita de Cássia Superbi de; Coimbra, Jane Sélia dos Reis; Silva, Luis Henrique Mendes da; Silva, Maria do Carmo Hespanhol daThe objective of this study was to determine the thermodynamic parameters (ΔtrG, ΔtrH and ΔtrS) associated with lysozyme and conalbumin partitioning in aqueous two-phases systems (ATPS). Influence of salt type and polyethylene glycol (PEG) concentrations on the partition coefficient of lysozyme and conalbumin from egg white was studied. The evaluated ATPS were composed of PEG 1500 and inorganic salts (sodium ci...
Partitioning of glycomacropeptide in aqueous two-phase systems
Silva, C. A. S.; Coimbra, Jane Sélia dos Reis; Rojas, Edwin Elard Garcia; Teixeira, J. A.The partition behavior of glycomacropeptide (GMP) was determined in polyethylene glycol (PEG) and sodium citrate aqueous two-phase systems (ATPS). It was found that the partitioning of GMP depends on PEG molar mass, tie line length, pH, NaCl concentration and temperature. The obtained data indicates that GMP is preferentially partitioned into the PEG phase without addition of NaCl at pH 8.0. Larger tie line len...
Níveis de energia metabolizável para codornas japonesas na fase inicial de postura
Barreto,Sergio Luiz de Toledo; Quirino,Bárbara Josefina de Sousa; Brito,Claudson Oliveira; Umigi,Regina Tie; Araujo,Marcelle Santana deObjetivou-se avaliar a influência de diferentes níveis de EM na ração sobre o desempenho e a qualidade dos ovos de codornas. Foram utilizadas 250 codornas japonesas (Coturnix coturnix japonica), fêmeas, com 56 dias de idade, distribuídas em delineamento inteiramente casualizado, com cinco tratamentos (2.650, 2.750, 2.850, 2.950 e 3.050 kcal de EM/kg), cinco repetições e dez aves por unidade experimental. As die...
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