The plate-and-frame filter is widely used in antibiotics purificationInstead of substitution washing method, cross washing method was used in the filtration.The results of application of new technol. showed that it could decrease the amount of washing water to 50%, reduce the consumption of extractant and improve the yield.
Zhongguo Yiyao Gongye Zazhi
Effects of corn steep liquor on penicillin fermentation
作者: Li, Qinggang ; Pang, Qiaolan
In penicillin fermentation medium, the effects of corn steep liquor concentration on mycelia, metabolism of ammonia nitrogen and glucose, fermentation time and potency were investigated.The optimum concentration of corn steep liquor was 3.6%-4.0%, and the first time for feeding of ammonium sulfate was around 30-50h, which was beneficial for increase of the potency, the improvement of the broth quality, and the decrease of the fermentation cost.
CrystEngComm
Influence of intermolecular interactions and crystal structure on desolvation mechanisms of solvates
The desolvation processes of the solvates were systematically investigated by various analytical techniques and were analyzed based on the intermolecular interactions, molecular networks, void types, proportion of voids and packing patterns.