FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (6): 209-212.

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Fermentation Study of Carotenoids from Photosysnthetic Bacteria Strain ZY2159

 ZHAO  Feng-Mei, ZHAO  Chun-Gui, ZHAO  Yi, ZHAO  Sheng-Wang, YANG  Su-Ping   

  1. 1.Biology Research Institute of Shanxi, Taiyuan 030006, China; 2.School of Life Science and Technology, Shanxi University, Taiyuan 030006, China
  • Online:2007-06-15 Published:2011-12-31

Abstract: The effects of fermentation parameters and incubation condition on cell growth and carotenoids biosynthesis in photosynthetic bacteria strain ZY2159 were investigated. The results showed that the maximal biomass yield 15.4 g/L and carotenoids yield 50.9 mg/L are obtained with cells grown at 30 ℃ and 2000 lux light intensity in 5 L fermentor for 6 days. The optimal concentration of Fe3+ for cell growth and carotenoids biosynthesis is 15 mg/L.The optimal volume of inoculation and medium for cell growth and carotenoid accumulation are 10% and 70%, respectively. β-carotenone relatively content in total carotenoids is 22.3% by HPLC.

Key words: photosysnthetic bacteria, fermentation, carotenoid, HPLC