ISSN:
1573-5176
Keywords:
Astaxanthin
;
Chlorococcum sp.
;
secondary carotenoids
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The effects of temperature, pH and oxygen level onsecondary carotenoids (SC) accumulation in Chlorococcum sp. were investigated. The optimaltemperature, pH and oxygen level for the yields ofsecondary carotenoids and astaxanthin were35 °C, pH 8 and 10% (v/v), respectively. Whilethe ratio (R) of products containing hydroxyl group(s) to those containing keto group (s) increased withthe increase of temperature and pH, R value decreasedwith the level of oxygen. These results indicate thathigher temperature and pH favor the introduction ofhydroxyl group to the corresponding substrates,however, under high oxygen level keto group wasrelatively easy to be added compared to the additionof hydroxyl.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1008185212724
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