Astaxanthin production by Phaffia rhodozyma and Haematococcus pluvialis: a comparative study
| Autor: | A. R. Domínguez-Bocanegra, Teresa Ponce-Noyola, J. A. Torres-Muñoz |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Pluvialis
Cell Culture Techniques Xanthophylls Applied Microbiology and Biotechnology Pigment chemistry.chemical_compound Astaxanthin Chlorophyta Botany Food science Biomass Haematococcus pluvialis biology Basidiomycota General Medicine biology.organism_classification Yeast Culture Media Oxygen Light intensity chemistry visual_art Fermentation visual_art.visual_art_medium Aeration Biotechnology |
| Zdroj: | Applied microbiology and biotechnology. 75(4) |
| ISSN: | 0175-7598 |
| Popis: | Phaffia rhodozyma (now Xanthophyllomyces dendrorhous) and Haematococcus pluvialis are known as the major prominent microorganisms able to synthesize astaxanthin natural pigment. Important research efforts have been made to determine optimal conditions for astaxanthin synthesis. When the focus is on astaxanthin production, the maximal reported value of 9.2 mg/g cell is obtained within H. pluvialis grown on BAR medium, under continuous illumination (345 micromol photon m(-2) s(-1)) and without aeration. Whereas fermentation by mutated R1 yeast grown on coconut milk produced 1,850 microg/g yeast. However, when looking at astaxanthin productivity, the picture is slightly different. The figures obtained with P. rhodozyma are rather similar to those of H. pluvialis. Maximal reported values are 170 microg/g yeast per day with a wild yeast strain and 370 microg/g yeast per day with mutated R1 yeast. In the case of H. pluvialis, maximal values ranged from 290 to 428 microg/g cell per day depending on the media (BG-11 or BAR), light intensity (177 micromol photon m(-2) s(-1)), aeration, etc. The main aim of this work was to examine how astaxanthin synthesis, by P. rhodozyma and H. pluvialis, could be compared. The study is based on previous works by the authors where pigment productions have been reported. |
| Databáze: | OpenAIRE |
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