화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO))
권호 25권 1호
발표분야 포스터-생물공학
제목 Split Mixotrophy: A Novel Mixotrophic Cultivation Strategy for Enhancing Yield of the Biomass and Lipid of Chlorella protothecoides
초록 Mixotrophy assumes sum of autotrophic and heterotrophic growths. In this study, a new split mixotrophic cultivation strategy(SMCS) developed as better mixotrophy via offering mutual-benefits through gas-exchange at both headspaces while splitting both trophic modes. To quantify synergistic-growth effects in combined-autotrophy and combined-heterotrophy(CA&CH) of SMCS, gross O2 evolution, DIC and DO concentrations were measured. Average 12–14% and 26–32% increase in DIC and DO concentrations were determined in CA and CH than A, H and M. Biomass yield in CA + CH was increased approx.1.5-folds higher than yields of A + H and M regimes. These results show SMCS as better cultivation strategy than the M by increased biomass and lipid yields. Challenges associated with organic carbon can be solved by SMCS viz. chlorophyll loss, organic carbon uptake inhibition. SMCS could be a breakthrough to integrate bacterial process with algae for better bioprocess economy and energy recovery.
저자 전재민1, 홍민의1, Anil Kumar Patel1, 장원석2, 심상준1
소속 1고려대, 2한국지역난방공사
키워드 microalgae; mixotrophy; split mixotrophy; SMCS; biomass; lipid; Chlorella protothecoides
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