Study of Replacing Calcium Carbonate with Ammonium Feeding in Gibberellins A4＋7 Fermentation
Effects of replacing calcium carbonate with ammonium feeding in gibberellins GA4＋7 fermentation and recovered rate were studied. The research showed that the continuous ammonium feeding technique could be utilized in gibberellins GA4＋7 fermentation and production, and could positively enhance the production of gibberellins GA4＋7. The yield/titer was 6% higher than control and recovered rate was 4% higher because the negative effect of calcium on nltrafiltration membrane （NF） and nanofiltration membrane （NF） was eliminated.
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维普
