AI Article Synopsis
- A new method was developed to quickly boost triacylglycerol (TAG) and fatty acid production in Chlorella sp. through mild electric stimulation.
- Applying a current of 31 mA for 4 hours increased TAG levels by 2.1 times compared to untreated cells and significantly raised polyunsaturated fatty acids.
- The study suggests that the increased TAG and fatty acids result from stimulated fatty acid biosynthesis and metabolic processes in the algal cells due to the electric treatment.
Article Abstract
In this work, a new stress-based method for rapid induction of triacylglycerol (TAG) and total and polyunsaturated fatty acid accumulations in Chlorella sp. by mild electric stimulation is presented. When a cathodic current of 31 mA (voltage: 4 V) was applied to the algal cells for 4 h, the TAG content of the electro-treated cells was sharply increased to a level 2.1 times that of the untreated control. The contents of the polyunsaturated linoleic (C18:2n6) and linolenic (C18:3n3) acids in the electro-treated cells were also 36 and 57% higher than those in the untreated cells, respectively. Cyclic voltammetry and various biochemical analyses indicate that TAG and fatty acid formations are electro-stimulated via de novo fatty acid biosynthesis and metabolic transformation in the Chlorella cells.
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| http://dx.doi.org/10.1016/j.biortech.2019.121950 | DOI Listing |
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