Adsorção de alfa-lactalbumina do soro de leite em hidroxiapatita: efeito do pH e da temperatura e análise termodinâmica

Química Nova

Rita De Cássia Superbi De Sousa²  Jane Sélia Dos Reis Coimbra¹  Liliana De Luca Xavier Augusto²  Leomir Samuel Tormen Reis² 

[1] ,Universidade Federal de Viçosa Departamento de Química Viçosa MG ,Brasil

关键词: bioseparation;    Gibbs free energy;    Langmuir model;   

DOI  :  10.5935/0100-4042.20140149

来源: SciELO

【 摘 要 】

The nutritional and functional benefits offered by whey protein α-lactalbumin justify the great interest in its manufacture in large quantities at a high purity level. Hydroxyapatite is a calcium phosphate material able to adsorb proteins and can be synthesized at low production cost. Therefore, this work evaluated the adsorption of α-lactalbumin on hydroxyapatite using solid-liquid phase equilibrium data reported as adsorption isotherms. Van't Hoff's thermodynamics analysis showed that the adsorption process is entropically driven.

【 授权许可】

CC BY-NC   
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