Volume 6, Issue 2 (summer 2002)
jwss 2002, 6(2): 201-213 |
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S. Farrahi-Ashtiani, M. Mahdiyeh, I. Nahvi. The Effects of Salinity, Phosphate Deprivation and Eosin on Growth and Astaxanthin Production in Unicellular Green Alga, Haematococcus Pluvialis. jwss 2002; 6 (2) :201-213
URL: http://jstnar.iut.ac.ir/article-1-186-en.html
URL: http://jstnar.iut.ac.ir/article-1-186-en.html
Abstract: (27108 Views)
In order to increase ketocarotenoid astaxanthin production by Haematococcus pluvialis, the effects of salinity, phosphate deprivation and eosin on growth and astaxanhin production were examined. The experiments were carried out in the growth chamber at 20oC under sterile conditions. The results showed that under salinity, phosphate deprivation and eosin supply, encystment was induced, and at the same time, astaxanthin formation and dry weight increased. Furthermore, by adding histidine to culture medium as a quencher of singlet oxygen, astaxanthin production significantly reduced. Therefore, it can be claimed that accumulation of astaxanthin may be related to antioxidative responses, which increased survival of algal cells under environmental stress conditions.
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