REACTIVITY OF LIGNIN-RELATED PHENOLS WITH HEMOGLOBIN AND NACLO3

被引:0
|
作者
ANDER, P [1 ]
STALMASEK, M [1 ]
PETTERSSON, B [1 ]
机构
[1] STFI,S-11486 STOCKHOLM,SWEDEN
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中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Haemoglobin (Hb), in the presence of sodium chlorate (NaClO3), promotes the decarboxylation 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 (NaClO2) in the presence or absence of Hb were observed, especially at low pH values. It is speculated that ClO2 is mainly responsible for the activities observed. The Hb-dependent activity was more stable in the presence of NaClO3 than with hydrogen peroxide (H2O2).
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页码:525 / 529
页数:5
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