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Effect of colour LEDs on mycelia growth of Aspergillus ficuum and phytase production in photo-fermentations

Paper ID Volume ID Publish Year Pages File Format Full-Text
30836 44507 2012 6 PDF Available
Title
Effect of colour LEDs on mycelia growth of Aspergillus ficuum and phytase production in photo-fermentations
Abstract

Aspergillus ficuum grown on plates and in liquid cultures were illuminated by a white fluorescent light and four different colour LED lights (white, blue, green and red) to evaluate the regulation of LED lights on fungal growth. Biomass conversion, pellet size and phytase activity were examined. In liquid culture, luminous intensity was highly correlated with the rate of biomass conversion but did not affect pellet size. The white fluorescent light contained several different wavelengths, and therefore, its effect on A. ficuum represents the cooperative effect of these wavelengths. Strong luminance of a white fluorescent light inhibited growth of A. ficuum mycelia on plates, whereas white LED light enhanced growth. The development of mycelia was also inhibited by blue LED light and enhanced by red LED light illumination. Investigating the effect of LED lights on the growth of A. ficuum could provide evidence on the luminous intensity that is sufficient for regulating fermentation by light.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We examine LED lights regulation on the growth of Aspergillus ficuum. ► The luminous intensity of lights affects the rate of biomass conversion. ► Fungal growth is enhanced by white and red LED lights. ► The development of mycelia is inhibited by a blue LED light illumination.

Keywords
Aspergillus ficuum; Luminous intensity; Colour LED light; Biomass formation
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Effect of colour LEDs on mycelia growth of Aspergillus ficuum and phytase production in photo-fermentations
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 106, 5 January 2012, Pages 81–86
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us