| Title | Ultrasonic Treatment Enhanced Astaxanthin Production of Haematococcus pluvialis |
|---|---|
| Author | Yun Hwan Park1†, Jaewon Park1,2†, Jeong Sik Choi1, Hyun Soo Kim3, Jong Soon Choi4,5*, and Yoon‑E Choi1* |
| Address | 1Division of Environmental Science & Ecological Engineering, Korea University, Seoul 02841, Republic of Korea, 2OJeong Resilience Institute, Korea University, Seoul 02841, Republic of Korea, 3Department of Electronic Engineering, Kwangwoon University, Seoul 01897, Republic of Korea, 4Division of Analytical Science, Korea Basic Science Institute, Daejeon 34133, Republic of Korea, 5Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea |
| Bibliography | Journal of Microbiology, 61(6),633-639, 2023, |
| DOI | 10.1007/s12275-023-00053-5 |
| Key Words | Haematococcus pluvialis · Astaxanthin · Ultrasonic treatment · Astaxanthin induction |
| Abstract | In this study, effects of ultrasonic treatment on Haematococcus pluvialis (H. pluvialis) were investigated. It has been confirmed that the ultrasonic stimulation acted as stress resources in the red cyst stage H. pluvialis cells containing astaxanthin, resulting in additional astaxanthin production. With the increase in production of astaxanthin, the average diameter of H. pluvialis cells increased accordingly. In addition, to determine how ultrasonic stimulation had an effect on the further biosynthesis of astaxanthin, genes related to astaxanthin synthesis and cellular ROS level were measured. As a result, it was confirmed that astaxanthin biosynthesis related genes and cellular ROS levels were increased, and thus ultrasonic stimulation acts as an oxidative stimulus. These results support the notion on the effect of the ultrasonic treatment, and we believe our novel approach based on the ultrasonic treatment would help to enhance the astaxanthin production from H. pluvialis. |