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Microalgae were screened from seawater for greenhouse gas CO2 fixation and d-lactic acid production by self-fermentation and tested for their growth rate, starch content, and conversion rate from starch
into d-lactic acid. More than 300 strains were isolated, and some of them were found to have suitable properties for this purpose.
One of the best strains, Nannochlorum, sp. 26A4, which was isolated from Sakito Island, had a starch content of 40% (dry weight), and a conversion rate from consumed
starch into d-lactic acid of 70% in the dark under anaerobic conditions. The produced d-lactic acid showed a high optical purity compared with the conventional one. The proposed new d-lactic acid production system using Nannochlorum sp. 26A4 should also be an effective technology for greenhouse gas CO2 fixation and/or conversion into industrial raw materials. 相似文献
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