Two-step cultivation for production of astaxanthin in Chlorella zofingiensis using a patented energy-free rotating floating photobioreactor (RFP).
Two-step cultivation for production of astaxanthin in Chlorella zofingiensis using a patented energy-free rotating floating photobioreactor (RFP).
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DOI：
10.1016/j.biortech.2016.10.081
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发表时间：
2017
影响因子：
11.4
通讯作者：
Zhao Zhang;Jim Junhui Huang;Dongzhe Sun;Yuan-Kun Lee;Feng Chen
中科院分区：
文献类型：
--
作者：
Zhao Zhang;Jim Junhui Huang;Dongzhe Sun;Yuan-Kun Lee;Feng Chen
In the present study, high light and nitrogen starvation with glucose-fed to the culture was found efficient to induce astaxanthin accumulation inChlorella zofingiensis. Therefore, a two-step cultivation strategy including high biomass yield fermentation and outdoor induction with an energy-free RFP was conducted. During the fermentation, the highest cell density of 98.4 g L−1and astaxanthin yield of 73.3 mg L−1were achieved, which were higher than those so far reported inC. zofingiensis. During the outdoor induction, astaxanthin content was further increased by 1.5-fold leading to the highest astaxanthin productivity of 5.26 mg L−1day−1under an optimal dilution of 5-fold. Our work thus provided an effective two-step cultivation strategy for production of astaxanthin byC. zofingiensis.
