| 초록 |
Increased carbon dioxide (CO2) concentration in the atmosphere has become of worldwide concern in recent years. As one of the CO2 reduction strategies, a biological method has been proposed to convert CO2 to useful biomass by plants or photosynthetic microorganisms. One of the photoautotrophs, Haematococcus pluvialis is a freshwater green microalgae and accumulates the secondary carotenoid astaxanthin including other related carotenoids. Compared to β-carotene, astaxanthin has two additional oxygenated groups on each ring structure and it has extraordinary antioxidant capability, ten times activity greater than other carotenoids such as β-carotene and lutein. It is a pigmentation source of biological importance with applications in the nutraceutical, pharmaceutical and food industries. In this study, production of astaxanthin using H. pluvialis was conducted by photoautotrophic culture in the CO2 supplemented incubator. Three kinds of strains of H. pluvialis, CCAP 34/7, NIES 144, and UTEX 16 were cultivated and the astaxanthin productivity from H. pluvialis NIES 144 was 0.238 mg/g·day higher than other two strains. |
