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Effect of flashing light from blue light emitting diodes on cell growth and astaxanthin production of Haematococcus pluvialis

Paper ID Volume ID Publish Year Pages File Format Full-Text
22516 43300 2006 5 PDF Available
Title
Effect of flashing light from blue light emitting diodes on cell growth and astaxanthin production of Haematococcus pluvialis
Abstract

To conserve energy in the production of astaxanthin by the green alga Haematococcus pluvialis, we utilized intermittent flashing light from blue light emitting diodes (LEDs) and investigated the effects of the incident light intensity (2–12 μmol m−2 s−1), duty cycle (17–67%) and frequency (25–200 Hz) of flashing on the cell growth and astaxanthin production. In the above ranges, the final astaxanthin concentration under illumination by flashing light was significantly higher than that obtained under illumination with continuous light at the same incident intensity. For example, flashing light at an incident intensity of 8 μmol m−2 s−1 gave the same final astaxanthin concentration that was obtained under continuous light illumination at 12 μmol m−2 s−1, thus reducing energy consumption by 1/3. We therefore conclude that flashing light from blue LEDs is a promising illumination method for indoor algal cultivation using photobioreactors.

Keywords
flashing light; blue light emitting diode; astaxanthin; Haematococcus pluvialis
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Effect of flashing light from blue light emitting diodes on cell growth and astaxanthin production of Haematococcus pluvialis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 102, Issue 5, November 2006, Pages 442–446
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