Accumulation of Astaxanthin Was Improved by the Nonmotile Cells of Haematococcus pluvialis.

ABSTRACT: The current commercial production of natural astaxanthin is mainly carried out using Haematococcus pluvialis vegetative cells in the "two-stage" batch mode. The motile vegetative cells are more sensitive to stress than nonmotile vegetative cells, thereby affecting the overall astaxanthin productivity in H. pluvialis cultures. In this study, we compared the differences between motile cells and nonmotile cells in astaxanthin productivity, morphological changes, the mortality rate, and the diameter of the formed cysts. The experimental design was achieved by two different types H. pluvialis cell under continuous light of 80 μmol photons m^-2 s^-1 for a 9-day induction period. The highest astaxanthin concentration of 48.42 ± 3.13 mg L^-1

SUBMITTER: Li F 

PROVIDER: S-EPMC6379868 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature