| Title |
Application of Saccharified Acorn-starch for Biomass and Lipid Accumulation of Microalgae |
| Authors |
최희정 ( Hee Jeong Choi ) ; 이정민 ( Jung Min Lee ) |
| DOI |
https://doi.org/10.15681/KSWE.2016.32.2.197 |
| Keywords |
Acorn-starch; Biomass; Glucose; Microalgae; Mixotrophic; Oil content |
| Abstract |
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. |