Abstract
Activity of bacterial Azospirillum lipoferum laccase on phenolic derivatives was studied by spectrophotometry, HPLC and GC/MS. Phenolic compounds of the syringic type (aldehyde, acid or acetophenone) were transformed into 2,6-dimethoxy-1,4-benzoquinone (2,6-DMBQ). Comparison has been made with the fungal Pyricularia oryzae laccase. Transformation of other phenolic acid derivatives, related to lignin metabolism, have been studied with both bacterial and fungal enzymes, using spectrophotometric analysis.
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