BY-PASSING OF UNWANTED VANILLYL ALCOHOL FORMATION USING SELECTIVE ADSORBENTS TO IMPROVE VANILLIN PRODUCTION WITH PHANEROCHAETE-CHRYSOSPORIUM

Phanerochaete chrysosporium has been found to preferentially metaboliz e vanillic acid using a reduction pathway which leads to vanillyl alco hol via vanillin. In order to prevent vanillin transformation into unw anted vanillyl alcohol, the ability of different adsorbents to adsorb vanillin was investigated. XAD-2 resin was shown to be very efficient and selective for vanillin. When applied to the culture medium of P. c hrysosporium, the resin trapped the vanillin, which prevented the tran sformation of vanillin into vanillyl alcohol.