In this study, we report for the first time to our knowledge, about theimpact of drying methods (freeze-drying versus spray-drying) onastaxanthin content in H. pluvialis powder.
We also report here howthe astaxanthin esters, and free (cis/trans) astaxanthin content in thedried powder change over time under vacuum and non-vacuum condi-tions and at different storage temperatures. This will help to understandhow the different drying methods as well as temperature and vacuumconditions could affect astaxanthin stability in H. pluvialis powder.