光質とCO_2濃度が光合成培養におけるユーグレナのタンパク質、パラミロン、脂肪酸量へ及ぼす影響

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We have investigated the effects of light quality and CO2 concentration (0.04% and 10%) on growth of Euglena as a fundamental study. Useful nutrients such as high quality protein and fatty acid, as well as specific saccharide (β-1,3 glucan), contained in Euglena are now being highlighted. In the present study, we investigated the effects of light quality and CO2 concentration on the production of protein, paramylon and fatty acid. Under the CO2 concentration of 0.04%, protein contents in Euglena cultured in red and blue light were 105.0 μg 106 cells-1, paramylon 48.2 μg 106 cells-1, and in blue light fatty acid was 20.3 μg 106 cells-1, higher than those in other light conditions. Whereas under the CO2 concentration of 10%, protein contents in Euglena cultured in red and blue light were 125.6 μg 106 cells-1, paramylon 57.6 μg 106 cells-1, and in blue light fatty acid 29.7 μg 106 cells-1, higher than those in ordinary air conditions (with 0.04% CO2). No significant differences in these nutrient contents were found between the four light quality treatments under the CO2 concentration of 10%. As previous data we showed growth of Euglena depended on chlorophyll contents, protein and paramylon contents depended on chlorophyll contents, too. It was concluded that Euglena would be good nutrition source when they are cultured in each light conditions under CO2 concentration of 10%, so CO2 discharged from industrials, power stations and so on, will be utilized to this new food production system, effectively.
生態工学会の論文
2007-10-31

光質とCO_2濃度が光合成培養におけるユーグレナのタンパク質、パラミロン、脂肪酸量へ及ぼす影響

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