Migiation Behaviour of Plumbum and Arsenic on Cordyceps Sinsesis Fermentation
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Abstract:
The influence of plumbum and arsenic on the submerged fermentation with paecilomyces hepialid has been investigated. The results showed that plumbum had little effect on the fermentation with paecilomyces hepialid, but arsenic showed high cell toxicity during the fermentation. When the arsenic concentration was 100 μg/kg, the yields of polysaccharide and mannitol decreased by 28% and 14%, respectively. When plumbum and arsenic concentrations were in range of 0~100 μg/kg, the curves described by the lead and arsenic concentration in the mycelia and the culture medium fitted well to linear equation and logistic equation, respectively.
