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Regulation of different light conditions for efficient biomass production and protein accumulation of
Spirulina platensis - Journal of Oceanology and Limnology Vol. 42, Issue 1, Pages: 174-186(2024)
- Affiliations：
1.State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, China
2.Tongwei Co., Ltd., Healthy Aquaculture Key Laboratory of Sichuan Province, Chengdu 610093, China
- Author bio：
zhangl21@tongwei.com;
gebaosheng@upc.edu.cn
- Funds：
DOI：10.1007/s00343-023-2360-x
CLC：Received：07 November 2022，
Accepted：08 December 2022，
Online First：16 January 2023，
Published：03 January 2024
- Accepted：
Scan QR Code
ZHANG Yufei,LI Xianjun,LI Yuhui,et al.Research PaperRegulation of different light conditions for efficient biomass production and protein accumulation of Spirulinaplatensis[J].Journal of Oceanology and Limnology,2024,42(01):174-186.
ZHANG Yufei,LI Xianjun,LI Yuhui,et al.Research PaperRegulation of different light conditions for efficient biomass production and protein accumulation of Spirulinaplatensis[J].Journal of Oceanology and Limnology,2024,42(01):174-186. DOI： 10.1007/s00343-023-2360-x.
摘要
Abstract
Light plays an important role in the photosynthesis and metabolic process of microalgae. However
how different light conditions regulate the biomass production and protein accumulation of microalgae is mostly unknown. In this study
the influence of different light conditions
including light colors
densities
and light꞉dark cycles on the cell growth and biochemical composition of
Spirulina
platensis
was symmetrically characterized. Under different colored lights
S
.
platensis
all shows an increase trend within the increased light intensity ranges; however
each showing different optimal light intensities. At the same light intensity
different colored lights show different growth rate of
S
.
platensis
following the sequence of red
>
white
>
green
>
yellow
>
blue. The maximum growth rate and protein accumulation were determined as 21.88 and 5.10 mg/(L·d)
when illuminated under red LED. The energy efficiency of different light sources was calculated and ranked as red
>
white
>
blue≈green
>
yellow. Transcriptomic analysis suggests that red light can promote cell growth and protein accumulation by up-regulating genes related to photosynthesis
carbon fixation
and C-N metabolism pathways. This study provides a conducive and efficient way to promote biomass production and protein accumulation of
S
.
platensis
by regulating light conditions.
关键词
Keywords
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