Different types of aqueous two-phase systems for biomolecule and bioparticle extraction and purification

2013 ◽  
Vol 29 (6) ◽  
pp. 1343-1353 ◽  
Author(s):  
João Vitor Dutra Molino ◽  
Daniela de Araújo Viana Marques ◽  
Adalberto Pessoa Júnior ◽  
Priscila Gava Mazzola ◽  
Maria Silvia Viccari Gatti
1999 ◽  
Vol 30 (4) ◽  
pp. 324-331 ◽  
Author(s):  
Maria Estela da Silva ◽  
Telma Teixeira Franco

This work investigated the partitioning of b-galactosidase from Kluyveromyces fragilis in aqueous two-phase systems (ATPS) by bioaffinity. PEG 4000 was chemically activated with thresyl chloride, and the biospecific ligand p-aminophenyl 1-thio-b-D-galactopyranoside (APGP) was attached to the activated PEG 4000. A new two-step method for extraction and purification of the enzyme b-galactosidase from Kluyveromyces fragilis was developed. In the first step, a system composed of 6% PEG 4000-APGP and 8% dextran 505 was used, where b-galactosidase was strongly partitioned to the top phase (K = 2,330). In the second step, a system formed of 13% PEG-APGP and 9% phosphate salt was used to revert the value of the partition coefficient of b-galactosidase (K = 2 x 10-5) in order to provide the purification and recovery of 39% of the enzyme in the bottom salt-rich phase.


2008 ◽  
Vol 31 (6) ◽  
pp. 838-845 ◽  
Author(s):  
J. Benavides ◽  
O. Aguilar ◽  
B. H. Lapizco-Encinas ◽  
M. Rito-Palomares

2017 ◽  
Vol 53 (5) ◽  
pp. 734-744 ◽  
Author(s):  
Ricardo P. Santos ◽  
Luana M. Souza ◽  
Acenini L. Balieiro ◽  
Cleide M. F. Soares ◽  
Álvaro S. Lima ◽  
...  

2014 ◽  
Vol 52 (5) ◽  
pp. 2878-2885 ◽  
Author(s):  
Bin Jiang ◽  
Zhibiao Feng ◽  
Chunhong Liu ◽  
Yingcao Xu ◽  
Dongmei Li ◽  
...  

2013 ◽  
Vol 8 (3) ◽  
pp. 352-362 ◽  
Author(s):  
Paula A. J. Rosa ◽  
Ana M. Azevedo ◽  
S. Sommerfeld ◽  
Martina Mutter ◽  
Werner Bäcker ◽  
...  

2021 ◽  
Vol 60 (15) ◽  
pp. 5403-5410
Author(s):  
Martha Alicia González-Félix ◽  
Luis Alberto Mejía-Manzano ◽  
Bertha A. Barba-Dávila ◽  
Sergio O. Serna-Saldívar ◽  
José González-Valdez

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