| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 |
25권 2호 |
| 발표분야 |
포스터-생물공학 |
| 제목 |
Enhancement of astaxanthin production from fresh Haematococcus pluvialis via the heat stress-driven Haber-Weiss reaction under autotrophic condition |
| 초록 |
Photoautotrophic astaxanthin production using Haematococcus pluvialis has a variety of advantages of preventing bacterial contamination and augmenting astaxanthin titer and CO2 conversion. Although multiple adverse conditions to implement an increment in astaxanthin production were previously reported, high temperatures were not a feasible stress for efficacious photoautotrophic induction in our work. Because the capacity of carotenogenesis was highly depressed by the less reactive oxygen species (LROS; O2- and H2O2) excessively generated at high temperatures (30-36°C) in contrast to the more reactive oxygen species (MROS; O2 and OH•). This inefficient astaxanthin production was resolved by accelerating Iron-catalyzed Haber-Weiss reaction to convert LROS into MROS, facilitating lipid peroxidation. The heat stress-driven Haber Weiss reaction will improve the photoautotrophic astaxanthin production from H. pluvialis under high temperatures via the ratio control. |
| 저자 |
이지영1, 홍민의1, 장원석2, 심상준1
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| 소속 |
1고려대, 2한국지역난방공사 |
| 키워드 |
Haematococcus pluvialis; Astaxanthin; heat-stress; autotrophic
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| E-Mail |
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