Development and optimization of a new culture media using extruded bean as nitrogen source
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2015-03
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The composition of a culture medium is one of the most important parameters to be analyzed in biotechnological
processes with industrial purposes, because around 30–40% of the production costs were estimated to be
accounted for the cost of the growth medium [1]. Since medium optimization using a one-factor-at-a-time
approach is time-consuming, expensive, and often leads to misinterpretation of results, statistical experimental
design has been applied to medium optimization for growth and metabolite production [2–5]. In this scenario, the
use of mixture design to develop a culture medium containing a cheaper nitrogen source seems to be more
appropriate and simple. In this sense, the focus of this work is to present a detailed description of the steps
involved in the development of a optimized culture medium containing extruded bean as nitrogen source.
In a previous work we tested a development of new culture media based on the composition of YPD medium,
aiming to reduce bioprocess costs as well as to improve the biomass production and heterologous expression.
The developed medium was tested for growth of Saccharomyces cerevisiae and Pichia pastoris (GS 115).
The use of culture media containing extruded bean as sole nitrogen source showed better biomass production
and protein expression than those observed in the standard YPD medium.
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BATISTA, Karla A.; FERNANDES, Kátia F. Development and optimization of a new culture media using extruded bean as nitrogen source. MethodsX, Amsterdã, v. 2, p. 154-158, Mar. 2015.