The growth status of ten yeasts in the presence of several different polar organic solvents such as petroleum benzine

glycol methyl ether and polyethylene glycol octylphenyl ether and the living and growth of the yeasts in organic solvents with different logP value were examined.It is discovered that most of these yeasts can keep alive and grow in the presence of organic solvents. Especially the growth of Hansenula anomala in polyethylene glycol octylphenyl ethet

the CFU can reach 41%. These results show that the living and growth of the yeasts in the presence of organic solvents are strictly related with strain characters. Based on above results

the effects of the concentration of Mg2+ and the temperature on the living and growth of the yeasts in organic solvents were studied. For different yeasts the effect of Mg2+ is obviously different. The rising of temperature is unfavourable for the living and growth of the yeasts. Appropriate temperature is necessary for the yeasts to keep alive and grow in organic solvents and further bring into play the maximum catalysis efficiency in organic solvents.