本发明涉及河豚毒素的生物合成方法，包括获取具有一种或多种弧菌的培养，如通过种菌培养；将弧菌培养和产生TTX有机体的组织提取物加入发酵器中的培养基中；和从所述发酵器分离纯化TTX。本发明的方法在约3-5天的时间得到大约0.5mg/L的TTX产出，TTX的纯度至少为90％
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Personal air supply devices integrated with chairs are adapted for use in conjunction with building or vehicle ventilation systems. The personal air supply devices include ducts, a tube and a nozzle arranged to direct a portion of the air from the building or vehicle ventilation system at the facial.....
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A vertical micro-injection molding machine, comprising: a plasticizing unit, which features a conveying path, the conveying path in which the molten material has a screw conveyor; an injection means for receiving from a good measure of the plasticizing unit molten material; one injection molding, fr.....
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