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Title 

Optimized co-production of lipids and carotenoids from Ettlia sp. by regulating stress conditions

Authors 

Nakyeong LeeSo Ra KoChi-Yong AhnHee-Mock Oh

Publisher 

Elsevier

Issue Date 

2018

Citation 

Bioresource Technology

Keywords 

CarotenoidsEttliaLight stressLipidTemperature

Abstract 

This study used a single strain Ettlia sp. YC001 and two stages to optimize the production of three materials: lipids, lutein, and β-carotene. In the cultivation stage for lutein production, different temperatures, light qualities, and intensities were applied. The highest biomass was obtained at 35 °C, but the maximum lutein productivity of 6.1 mg/L/d achieved at 25 °C. In the stress stage for lipids and β-carotene production, UV-A and nitrogen starvation were applied. While UV stress increased the chlorophyll-a and β-carotene content. The β-carotene, oleic acid, and lipids significantly increased under nitrogen starvation with a high light intensity of 1200 ?mol/m2/s, plus the Ettlia sp. changed from green to red. The results showed that Ettlia sp. can be an effective microalga for the co-production of lutein, β-carotene, and biodiesel

ISSN 

0960-8524

Link 

http://dx.doi.org/10.1016/j.biortech.2018.03.006

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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