Journal
BIORESOURCE TECHNOLOGY
Volume 250, Issue -, Pages 449-456Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.11.067
Keywords
Low-starch algae; Freshwater algae; Salinity stress; Starch-to-lipid shift; Carbon partitioning
Funding
- National Science Fund for Excellent Young Scholars [51322811]
- Science and Technology Development Planning of Shandong Province [2012GGE27027]
- Program for New Century Excellent Talents in University of Ministry of Education of China [NCET-12-0341]
Ask authors/readers for more resources
Salinity stress has been verified to be a successful approach to enhance lipid production in high-starch marine algae, and salinity-induced carbon flow switching has been proposed as an algal response specific to brackish water. With the aim of testing this assumption, Chlorella sorokiniana SDEC-18, a low-starch freshwater alga, was grown in BG11 medium with NaCl addition at various concentrations (0, 2, 5, 10, 20, and 30 g/L). The results showed that salinity stress promoted carbon redistribution and starch conversion to lipid. The most desirable lipid productivity of 19.66 mg/L.d occurred in the medium with 20 g/L NaCl, about 2.16 times as high as that in the BG11 medium control. Moreover, microalgae with salinity stress were able to produce biodiesel with a more suitable cloud point, due to a decrease in the saturated fatty acid content. This therefore confirms that low-starch freshwater microalgae can also carry out salinity-induced carbon flow switching.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available