Monascus pigment production in bioreactor using a co-product of biodiesel as substrate
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Data
2013-02
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Resumo
The study and use of natural pigments in food industries have increased in recent years due to the toxicity presented by artificial pigments.
Monascus ruber is a filamentous fungus that produces red, orange, and yellow pigments under different growing conditions. The growth of
health food market has increased in parallel with the growth in biofuels production, such as biodiesel, which generates a concomitant increase
in the production of glycerin that can be used in bioprocesses. The objective of this study was to use glycerin and glucose as substrates in
the production of natural pigments in a bioreactor. The culture of Monascus ruber was carried out in a Bioflo III reactor with 4 L of working
volume and pH, temperature, aeration, and agitation control. The highest pigment production was observed after 60 hours of fungal culture
with 8.28 UA510 of red pigment. The pH range remained from 5.45 to 6.23 favoring the release of red pigment in the medium. This study
shows the feasibility of the production of natural pigments by Monascus ruber in a bioreactor using a co-product of biodiesel without previous
treatment as a substrate.
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Monascus ruber, Glycerin, Bioreactor, Glicerina, Biorreator
Citação
BÜHLER, Rose Marie Meinicke et al. Monascus pigment production in bioreactor using a co-product of biodiesel as substrate. Ciência e Tecnologia de Alimentos, Campinas, v. 33, supl. 1, p. 9-13, 2013.