Reactivity of lignin-related phenols with haemoglobin and NaClO3 |
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| Authors: | Paul Ander Marian Stalmasek Bert Pettersson |
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| Affiliation: | (1) STFI, Box 5604, S-11486 Stockholm, Sweden;(2) Department A Forest Products, The Swedish University of Agricultural Sciences, P.O. Box 7008, S-75007 Uppsala, Sweden |
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| Abstract: | Summary Haemoglobin (Hb), in the presence of sodium chlorate (NaClO3), promoted the decraboxylation of vanillic acid, the oxidation of guaiacol and the demethoxylation of vanillic and ferulic acids with maximal activity at pH 3.5–4.0. These reactions were also mediated by Hb + chlorine dioxide (ClO2) with a similar pH profile. However, differences in the activity of sodium chlorite (NaClOP2) in the presence or absence of Hb were observed, especially at low pH values. It is speculated that ClO2 is mainly responsible for acitivities observedc. The Hb-dependent activity was more stable in the presence of NaClO3 than with hydrogen peroxide (H2O2). *** DIRECT SUPPORT *** AG903028 00008 |
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