Effect of light on growth,pigment production and culture morphology of <Emphasis Type="Italic">Monascus purpureus</Emphasis> in solid-state fermentation |
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| Authors: | Sumathy Babitha Julio C Carvahlo Carlos R Soccol Ashok Pandey |
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| Institution: | (1) Biotechnology Division, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum, 695 019, India;(2) Present address: Skin Bioactive Material Laboratory, Inha University, Yong-hyunong, Nam-gu, Incheon, 402-751, South Korea;(3) Process Biotechnology Laboratory, Federal University of Parana, CEP 81530-970 Curitiba, PR, Brazil |
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| Abstract: | The capacity to sense and respond to light is widespread in animals, plants, fungi and bacteria. The effect of light quality
on growth and pigment yield of Monascus purpureus was investigated. Incubation in total darkness increased red pigment production from 14. 5 OD/g dry substrate to 22 OD/g
dry substrate. In contrast, growth of the fungus in direct illumination resulted in total suppression of pigment production.
It was found that both red and blue light influenced pigment yield as well as culture morphology. The authors propose the
existence of a light-perception system in Monascus purpureus. |
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| Keywords: | Solid-state fermentation Monascus purpureus Red pigment Direct illumination Photoreceptors |
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