Research
| Title： | New insights into the production of fucoxanthin by mixotrophic cultivation of Ochromonas and Microcystis aeruginosa |
|---|---|
| First author： | Gao, Lei; Wang, Fengjing; Wu, Tianyue; Zhou, Qi; Zhang, Duo; Hou, Xinbin; Zhang, Xinpeng; Ye, Jingrun; Ma, Yan; Wang, Zhipeng; Song, Lirong; Chen, Wei |
| Journal： | BIORESOURCE TECHNOLOGY |
| Years： | 2022 |
| DOI： | 10.1016/j.biortech.2022.127922 |
| Abstract： | Fucoxanthin (Fx) has attracted great interest due to its remarkable biological activities such as antioxidant and anti-obesity, and its increasing demands in biopharmaceutical and cosmetic fields. However, its commercial production is limited by low yield and high cost. In this study, we isolated and identified a species of golden algae (Ochromonas sp.) capable of engulfing Microcystis aeruginosa (M. aeruginosa) and accumulating Fx. After 72 h mixotrophic cultivation of Ochromonas sp. and M. aeruginosa, the algal culture changed from green to yellow --brown, and the content of Fx and the daily production rate were up to 11.58 mg g-1, and 1.315 mg L-1 d(-1), respectively. The utilization rate of M. aeruginosa was 527.27 fg cell(-1). This study will not only provide a new thought to produce Fx in an efficient, low-cost, and sustainable way but an innovative method for the control and treatment of harmful cyanobacterial blooms from eutrophic freshwaters as well. |
