Biocatalytic activity of Monascus mycelia depending on physiology and high sensitivity to product concentration.

Abstract:

:Cell suspension culture using mycelia as whole cell biocatalyst for production of orange Monascus pigments has been carried out successfully in a nonionic surfactant micelle aqueous solution. Thus, selection of mycelia as whole cell biocatalyst and the corresponding enzymatic kinetics for production of orange Monascus pigments can be optimized independently. Mycelia selected from submerged culture in a nonionic surfactant micelle aqueous solution with low pH 2.5 exhibits robust bioactivity. At the same time, enzymatic kinetic study shows that the bioactivity of mycelia as whole cell biocatalyst is sensitive to high product concentration. Segregation of product from mycelia by cell suspension culture in a nonionic surfactant micelle aqueous solution or peanut oil-water two-phase system is not only necessary for studying the enzymatic kinetics but also beneficial to industrial application of mycelia as whole cell biocatalyst.

journal_name

AMB Express

journal_title

AMB Express

authors

Lu F,Huang Y,Zhang X,Wang Z

doi

10.1186/s13568-017-0391-4

subject

Has Abstract

pub_date

2017-12-01 00:00:00

pages

88

issue

1

issn

2191-0855

pii

10.1186/s13568-017-0391-4

journal_volume

7

pub_type

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