Effect of culture conditions on canthaxanthin production by Dietzia natronolimnaea HS-1.
This study investigated the effects of various culture parameters (carbon sources, temperature, initial pH of culture, NaCl concentration, and light) on the growth and canthaxanthin production by Dietzia natronolimnaea HS-1. The results showed that the most effective carbon source for growth and canthaxantin production was glucose, and the best pH and temperature were 7 and 31 degrees C, respectively. In addition, the biomass and canthaxanthin production increased in a medium without NaCl and in the presence of light. Under the optimized conditions, the maximum biomass, total carotenoid, and canthaxanthin production were 6.12 +/- 0.21 g/l, 4.51 +/- 0.20 mg/l, and 4.28 +/- 0.15 mg/l, respectively, in an Erlenmeyer flask system, yet increased to 7.25 g/l, 5.48 mg/l, and 5.29 mg/l, respectively, in a batch fermenter system.
Department of Food Science and Engineering, Faculty of Biosystem Engineering, University of Tehran, Tehran, Iran.
Faramarz
F
Khodaiyan
Seyed Hadi
SH
Razavi
Zahra
Z
Emam-Djomeh
Seyed Mohammad Ali
SM
Mousavi
Mohammad Amin
MA
Hejazi
D000192:Actinomycetales / Q000254:growth & development / Q000378:metabolism*; D018533:Biomass; D016644:Canthaxanthin / Q000096:biosynthesis*; D002244:Carbon / Q000378:metabolism; D003470:Culture Media; D005285:Fermentation; D006863:Hydrogen-Ion Concentration; D008027:Light; D012965:Sodium Chloride / Q000494:pharmacology; D013696:Temperature
D003470:Culture Media; D012965:Sodium Chloride; D016644:Canthaxanthin; D002244:Carbon