Application of Saccharified Acorn-starch for Biomass and Lipid Accumulation of Microalgae

당화된 도토리의 전분이 미세조류 바이오매스 증식과 바이오오일 함량에 미치는 영향

Choi, Hee-Jeong;Lee, Jung-Min

  • Received : 2016.01.04
  • Accepted : 2016.03.10
  • Published : 2016.03.31


The growth of the algae strain Chlorella vulgaris under mixotrophic conditions in the presence of saccharified acorn-starch (acorn-glucose) was evaluated with the objective of increasing biomass growth and triacylglycerols (TAGs) content. The results indicated that 81.3% of starch was converted to glucose in acorns. C.vulgaris algal strains grown with acorn-glucose produced higher biomass and TAGs content than with autotrophic growth. The highest biomass production and TAGs content with 3 g/L acorn-glucose were 12.44 g/L and 32.9%, respectively. Biomass production with 3 g/L acorn-glucose was 16.4 fold higher than under autotrophic growth condition. These findings suggested that 3 g/L acorn-glucose is economic and efficient for biomass production/productivity and TAGs content of microalgae. This study provides a feasible way to reduce the cost of bioenergy production from microalgae.


Acorn-starch;Biomass;Glucose;Microalgae;Mixotrophic;Oil content


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