Oxalic acid extraction as a posttreatment to increase the brightness of kraft pulps bleached by white-rot fungi

M. T. Moreira; G. Feijoo; J. Lema; J. A. Field; R. Sierra-Alvarez

doi:10.1007/BF00157361

Oxalic acid extraction as a posttreatment to increase the brightness of kraft pulps bleached by white-rot fungi

M. T. Moreira
, G. Feijoo
, J. Lema
, J. A. Field
, R. Sierra-Alvarez

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Pulp brightness gains obtained by fungal biobleaching are often decreased by dark MnO₂ deposits which are formed by the biologically- mediated oxidation of Mn(II). Oxalic acid extraction of O₂-delignified kraft pulps bleached by several white-rot fungi was found to increase pulp brightness by up to 9.7 ISO points due to MnO₂ dissolution. These results indicate that pulp extraction with oxalic acid can be used in order to accurately assess the net brightness gains achieved by fungal biobleaching.

Original language	English (US)
Pages (from-to)	559-564
Number of pages	6
Journal	Biotechnology Techniques
Volume	10
Issue number	8
DOIs	https://doi.org/10.1007/BF00157361
State	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

Biochemistry
Applied Microbiology and Biotechnology

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10.1007/BF00157361

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@article{3ed2901b053d4e61a8140a8bda9cf5e2,

title = "Oxalic acid extraction as a posttreatment to increase the brightness of kraft pulps bleached by white-rot fungi",

abstract = "Pulp brightness gains obtained by fungal biobleaching are often decreased by dark MnO2 deposits which are formed by the biologically- mediated oxidation of Mn(II). Oxalic acid extraction of O2-delignified kraft pulps bleached by several white-rot fungi was found to increase pulp brightness by up to 9.7 ISO points due to MnO2 dissolution. These results indicate that pulp extraction with oxalic acid can be used in order to accurately assess the net brightness gains achieved by fungal biobleaching.",

author = "Moreira, \{M. T.\} and G. Feijoo and J. Lema and Field, \{J. A.\} and R. Sierra-Alvarez",

year = "1996",

doi = "10.1007/BF00157361",

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pages = "559--564",

journal = "Biotechnology Techniques",

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TY - JOUR

T1 - Oxalic acid extraction as a posttreatment to increase the brightness of kraft pulps bleached by white-rot fungi

AU - Moreira, M. T.

AU - Feijoo, G.

AU - Lema, J.

AU - Field, J. A.

AU - Sierra-Alvarez, R.

PY - 1996

Y1 - 1996

N2 - Pulp brightness gains obtained by fungal biobleaching are often decreased by dark MnO2 deposits which are formed by the biologically- mediated oxidation of Mn(II). Oxalic acid extraction of O2-delignified kraft pulps bleached by several white-rot fungi was found to increase pulp brightness by up to 9.7 ISO points due to MnO2 dissolution. These results indicate that pulp extraction with oxalic acid can be used in order to accurately assess the net brightness gains achieved by fungal biobleaching.

AB - Pulp brightness gains obtained by fungal biobleaching are often decreased by dark MnO2 deposits which are formed by the biologically- mediated oxidation of Mn(II). Oxalic acid extraction of O2-delignified kraft pulps bleached by several white-rot fungi was found to increase pulp brightness by up to 9.7 ISO points due to MnO2 dissolution. These results indicate that pulp extraction with oxalic acid can be used in order to accurately assess the net brightness gains achieved by fungal biobleaching.

UR - https://www.scopus.com/pages/publications/0029789051

UR - https://www.scopus.com/pages/publications/0029789051#tab=citedBy

U2 - 10.1007/BF00157361

DO - 10.1007/BF00157361

M3 - Article

AN - SCOPUS:0029789051

SN - 0951-208X

VL - 10

SP - 559

EP - 564

JO - Biotechnology Techniques

JF - Biotechnology Techniques

IS - 8

ER -

Oxalic acid extraction as a posttreatment to increase the brightness of kraft pulps bleached by white-rot fungi

Abstract

ASJC Scopus subject areas

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