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Preparation of Bacillus Subtilis 5% Oil Miscible Flowable Concentrate(OF)

LIU Ya(Chemical Engineering Design Institute of Anhui Province,Hefei 230009,China)  
A formulation of 5% Bacillus subtilis OF was developed and the best formula and its manufacturing process were described as well.The formulation of OF consisted of Bacillus subtilis spore powder 5%,ABS Ca emulsifier 8%,phenyl phenol polyoxyethylene polyoxypropylene ether emulsifier 8%,anti-freeze agents 5%,xanthan gum 2%,antifoaming agent 0.3% and vegetable oil.Storage stability tests showed that the decomposition rate of the active ingredient was less than 5% at(54±2)℃ for 14 days.The physical and chemical properties of the formulated product confirmed to the requirements of OF formulation.
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