Influence of Leds on Cell Growth and Astaxanthin Production by Haematococcus pluvialis
GU Hongling
GUAN Bin
GONG Qing
ZHANG Ruiqin
CHEN Yinglian
ZHANG Liangyu
LI Zhenxing
Abstract：In order to increase the cell concentration and the accumulation of astaxanthin,the effects of different light intensity of diverse illuminants were studied on cell growth and accumulation of astaxan-thin.The results were as follows:in condition that the light intensity was 2500lx and ratio of red light and white light 2:1,the cell concentration reached 0.98g/L,which increased by 36.11% and 15.91%compared with illumination under only fluorescent lamps and red LEDs,respectively.While in the phase of astaxanthin production,combined illuminant was the optimal illuminator among the fluores-cent lamps,blue LEDs and combination of them.And under illumination with combined illuminants at 7000lx,and proportion of blue light to white light 3:1,the astaxanthin concentration reached 39.79 mg/L,which was apparently higher than that illuminated only with fluorescent lamps or blue LEDs.
Keywords：Haematococcus pluvialisastaxanthinfluorescent lampred LEDblue LED
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 45-50 )