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논문 기본 정보

자료유형
학술저널
저자정보
Ginalska, Grazyna (Department of Biochemistry, Maria Curie-Sklodowska University) Cho, Nam-Seok (School of Forest Resources, Chungbuk National University) Lobarzewski, Jerzy (Department of Biochemistry, Maria Curie-Sklodowska University) Piccolo, Alessandro (Department of Chemical-Agricultural Sciences, The University of Federico II in Naples) Leonowicz, Andrzej (Department of Biochemistry, Maria Curie-Sklodowska University)
저널정보
한국목재공학회 목재공학(Journal of the Korean Wood Science and Technology) 목재공학 제29권 제3호
발행연도
2001.1
수록면
104 - 111 (8page)

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초록· 키워드

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There are some evidence that active enzymatic proteins, e.g. fungal laccase, exist in the naturally occured soil humus. This study was performed to investigate the covalent binding of fungal laccase to the humic acid-iron complex, and to measure laccase activity of immobilized ones. Seven methods were adopted to form the covalent binding of fungal laccase with soil humic acids complexed with iron. Using these seven methods it was possible to change the dimension of spacer arm between laccase and support, and also to regulate the mode of covalent binding of this enzyme. The spacer arm was regulated from 2C to 11C. There was not observed any straight relationship between the spacer arm longitude and the laccase activity after immobilization, but the binding mode more effective than the former. Three out of the seven methods gave the high activity of immobilized laccase, and which active products of laccase immobilization was stable up to 10 days after the process. It is indicated that natural soil condition might be prevented the laccase activation by the toxic influence of some phenolic humic compounds. It was shown, for the first time, the possibilities to obtain the high activity of fungal laccase by binding to humic acids, and especially in complex with iron.

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