Parra C, Santiago M F, Rodriguez J, Durán N
Biological Chemistry Laboratory, Universidade Estadual de Campinas, S.P., Brazil.
Biochem Biophys Res Commun. 1998 Aug 28;249(3):719-22. doi: 10.1006/bbrc.1998.9111.
The properties of a siderophore model, acetohydroxamic acid (AHA), of desferral were studied. The pH, ionic strength, and AHA/Fe(III) ratios for o-dianisidine oxidation were optimized. Phenoloxidase activity of hydroxamates/Fe(III) acting on o-dianisidine at pH 7.0 and pH 3.0 was observed. Under these conditions, AHA was able to reduce Fe(III) to Fe(II) followed by ferrozine complexation. AHA/Fe(III) complex degraded lignin and chlorolignins from kraft effluent E1 65% and 85%, respectively, after 24 h.
对去铁胺的铁载体模型乙酰氧肟酸（AHA）的性质进行了研究。优化了邻联茴香胺氧化反应的pH值、离子强度和AHA/Fe(III)比例。观察了异羟肟酸/Fe(III)在pH 7.0和pH 3.0条件下对邻联茴香胺的酚氧化酶活性。在这些条件下，AHA能够将Fe(III)还原为Fe(II)，随后进行亚铁嗪络合。24小时后，AHA/Fe(III)络合物分别降解了硫酸盐制浆废水E1中65%的木质素和85%的氯代木质素。
