Abstract:In production of porcine interferon α (pIFN-α) by Pichia pastoris, improper glycerol feeding strategy leads to ethanol accumulation in the last stage of growth phase. In the present study, taking two runs with low ethanol accumulation under 2 g/L as control group, effects of long-term (>4 h) and instantaneous high ethanol concentration (>10 g/L) on pIFN-α production, and activities of key enzymes in carbon metabolism were discussed. As a result, compared with control group, pIFN-α expression level was decrease… Show more
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