A genetic algorithm for the optimization of the thermoinduction protocol for high-level production of recombinant human-like collagen from Escherichia coli

Copyright © 2011 International Union of Biochemistry and Molecular Biology, Inc..

Production of recombinant human-like collagen (RHLC) by thermoinduction of recombinant Escherichia coli BL 21 during high cell density cultivation was investigated in a 30 L bioreactor. The effects of induction temperature (T), pH, and carbon-to-nitrogen molar ratio of the nutrient medium (C/N) were examined. The optimal thermoinduction protocol for RHLC production was determined by using a model coupling genetic algorithm and artificial neural networks. The optimal operating conditions were as follows: maintenance of induction temperature at 42°C for 3 H and then at 39.4°C until the end, induction pH at 7.03, and C/N at 4.8 (mol/mol). The theoretical maximum concentration of RHLC was 12.5 g/L, whereas the experimental value was 12.1 g/L under the optimal induction conditions.

Medienart:

E-Artikel

Erscheinungsjahr:

2011

Erschienen:

2011

Enthalten in:

Zur Gesamtaufnahme - volume:58

Enthalten in:

Biotechnology and applied biochemistry - 58(2011), 3 vom: 01. Mai, Seite 175-84

Sprache:

Englisch

Beteiligte Personen:

Chi, Lei [VerfasserIn]
Fan, Dai-Di [VerfasserIn]
Ma, Xiao-Xuan [VerfasserIn]
Mi, Yu [VerfasserIn]
Luo, Yan-E [VerfasserIn]
Zhu, Chen-Hui [VerfasserIn]
Zhu, Xiao-Li [VerfasserIn]
Xue, Wen-Jiao [VerfasserIn]

Links:

Volltext

Themen:

9007-34-5
Collagen
Journal Article
Recombinant Proteins
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 06.02.2012

Date Revised 17.06.2011

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/bab.25

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM209223200