In order to investigate the effects of pH value of water phase on the octanol/water partition coefficient of benzoic acid derivatives,the shake-flask method was used to determine the octanol/water partition coefficient of benzoic acid,o-chloro-benzoic acid,m-nitro-benzoic acid and p-methyl-benzoic acid at different pH value of water phase.

Fermentation process and engineering parameters obtained from bacillus thuingiensis shake flask;

The biotransformation of adenosine to ATP using immobilized saccharamyces cerivisae in multifunctional shake flask of Y Z type was studied and the process parameter curves were obtained.

cerevisiaeobtaining by sampling from specially designed shake flask in the course of fermentation werecomparied with only analysis these parametes in the end of fermentation,throungh comparison andanalysis,the sampling analysis method was proved reliable.

A Y Z type multi function shaking flask and its on line measurement system especially designed of the parameters are introduced for the basic research of flask fermentation.

Studies on the conditions of cold-adapted β-galactosidase flask fermentation by strain 14-1;

The fermentation culture medium and shaking flask fermentation conditions of glutathione have been researched by using orthogonal experiments with Saccharomyces cerevisiae.