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Accumulation of Astaxanthin Was Improved by the Nonmotile Cells of Haematococcus pluvialis
Joint Authors
Huang, Xianghu
Cai, Minggang
Li, Feng
Lin, Mingwei
Wang, Jun
Zheng, Xuehong
Wu, Shaoting
An, Yu
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-02-05
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
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 was obtained in the nonmotile cell cultures with the highest the productivity of 5.04 ± 0.15 mg L−1 day−1, which was significantly higher than that in the motile cell cultures.
The microscopic examination of cell morphological showed a large number of photooxidative damaged cells occurring in the motile cell cultures, resulting in higher cell mortality rate (22.2 ± 3.97%) than nonmotile cell cultures (9.6 ± 0.63%).
In addition, the analysis results of cell diameter statistics indicated that nonmotile cells were more conducive to the formation of large astaxanthin-rich cysts than motile cells.
In conclusion, the works presented here suggest that the accumulation of astaxanthin was significantly improved by nonmotile cells of H.
pluvialis, which provided a possibility of optimizing the existing H.
pluvialis cultivation strategy for the industrial production.
American Psychological Association (APA)
Li, Feng& Cai, Minggang& Lin, Mingwei& Huang, Xianghu& Wang, Jun& Zheng, Xuehong…[et al.]. 2019. Accumulation of Astaxanthin Was Improved by the Nonmotile Cells of Haematococcus pluvialis. BioMed Research International،Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1127715
Modern Language Association (MLA)
Li, Feng…[et al.]. Accumulation of Astaxanthin Was Improved by the Nonmotile Cells of Haematococcus pluvialis. BioMed Research International No. 2019 (2019), pp.1-7.
https://search.emarefa.net/detail/BIM-1127715
American Medical Association (AMA)
Li, Feng& Cai, Minggang& Lin, Mingwei& Huang, Xianghu& Wang, Jun& Zheng, Xuehong…[et al.]. Accumulation of Astaxanthin Was Improved by the Nonmotile Cells of Haematococcus pluvialis. BioMed Research International. 2019. Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1127715
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1127715