Abstract
Phenolic compounds regarded as important pharmaceuticals with various biological activities are found in low amounts in microalgae. The objective of this study was to increase the amount of phenolic compounds in Spirulina platensis by a two-step batch mode cultivation. The evaluation of the effect of the sudden shift from low light to high light on phenolic compound production, antioxidant activity, growth, and biomass composition of S. platensis was undertaken. The amount of phenolic compounds was significantly increased by approximately eightfold (p < 0.01) by the light treatment. There were also increases in total amounts of carbohydrate, phycocyanin, carotenoid, malondialdehyde, and antioxidant activities while there were significant decreases in total protein amounts (p < 0.05). The relationships between antioxidant activities and total amounts of phenolic compounds were significantly correlated at the 99% confidence level (p < 0.01) indicating that phenolic compounds were major contributors of antioxidant activities.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
