Preliminary studies on fungal treatment of sugarcane straw for organosolv pulping

M. B.W. Saad; L. R.M. Oliveira; R. G. Cândido; G. Quintana; G. J.M. Rocha; A. R. Gonçalves

doi:10.1016/j.enzmictec.2008.03.006

Preliminary studies on fungal treatment of sugarcane straw for organosolv pulping

M. B.W. Saad, L. R.M. Oliveira, R. G. Cândido, G. Quintana, G. J.M. Rocha, A. R. Gonçalves

Research output: Contribution to journal › Article in an indexed scientific journal › peer-review

68 Scopus citations

Abstract

This work reports the effect of fungal pretreatment of sugarcane straw in the performance of the treated pulps. Fermentation time, fungal mycelium load and pretreatment scale were studied in the fungal treatment, and the best conditions were 15 days with 250 mg kg^-1 fungal mycelium per straw weight causing high lignin decomposition. At the largest scale tested (50 g straw) lignin degradation exceeded cellulose degradation by 2.4-fold. Acetosolv pulping was carried out in a tank reactor at 120 °C. The pulping kinetics showed that for biopulps the final lignin content was around 7.5% with a reduction of 40% in the pulping time to reach 12.5% pulp lignin, besides the factorial design showed that the biological pretreatment had a positive effect on the acetic acid reduction (21.5 wt.%) during pulping process.

Original language	English
Pages (from-to)	220-225
Number of pages	6
Journal	Enzyme and Microbial Technology
Volume	43
Issue number	2
DOIs	https://doi.org/10.1016/j.enzmictec.2008.03.006
State	Published - 5 Aug 2008

Bibliographical note

Funding Information:
The authors wish to thank technical assistance of Cibele Oliveira, Jussara Canilha, José Silva and José Tavares. This research has been supported by FAPESP, CNPq and CAPES.

Keywords

Biological pretreatment
Biopulping
Organosolv pulping
Sugarcane straw

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10.1016/j.enzmictec.2008.03.006

Cite this

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title = "Preliminary studies on fungal treatment of sugarcane straw for organosolv pulping",

abstract = "This work reports the effect of fungal pretreatment of sugarcane straw in the performance of the treated pulps. Fermentation time, fungal mycelium load and pretreatment scale were studied in the fungal treatment, and the best conditions were 15 days with 250 mg kg-1 fungal mycelium per straw weight causing high lignin decomposition. At the largest scale tested (50 g straw) lignin degradation exceeded cellulose degradation by 2.4-fold. Acetosolv pulping was carried out in a tank reactor at 120 °C. The pulping kinetics showed that for biopulps the final lignin content was around 7.5% with a reduction of 40% in the pulping time to reach 12.5% pulp lignin, besides the factorial design showed that the biological pretreatment had a positive effect on the acetic acid reduction (21.5 wt.%) during pulping process.",

keywords = "Biological pretreatment, Biopulping, Organosolv pulping, Sugarcane straw",

author = "Saad, {M. B.W.} and Oliveira, {L. R.M.} and C{\^a}ndido, {R. G.} and G. Quintana and Rocha, {G. J.M.} and Gon{\c c}alves, {A. R.}",

note = "Funding Information: The authors wish to thank technical assistance of Cibele Oliveira, Jussara Canilha, Jos{\'e} Silva and Jos{\'e} Tavares. This research has been supported by FAPESP, CNPq and CAPES.",

year = "2008",

month = aug,

day = "5",

doi = "10.1016/j.enzmictec.2008.03.006",

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AU - Saad, M. B.W.

AU - Oliveira, L. R.M.

AU - Cândido, R. G.

AU - Quintana, G.

AU - Rocha, G. J.M.

AU - Gonçalves, A. R.

N1 - Funding Information: The authors wish to thank technical assistance of Cibele Oliveira, Jussara Canilha, José Silva and José Tavares. This research has been supported by FAPESP, CNPq and CAPES.

PY - 2008/8/5

Y1 - 2008/8/5

N2 - This work reports the effect of fungal pretreatment of sugarcane straw in the performance of the treated pulps. Fermentation time, fungal mycelium load and pretreatment scale were studied in the fungal treatment, and the best conditions were 15 days with 250 mg kg-1 fungal mycelium per straw weight causing high lignin decomposition. At the largest scale tested (50 g straw) lignin degradation exceeded cellulose degradation by 2.4-fold. Acetosolv pulping was carried out in a tank reactor at 120 °C. The pulping kinetics showed that for biopulps the final lignin content was around 7.5% with a reduction of 40% in the pulping time to reach 12.5% pulp lignin, besides the factorial design showed that the biological pretreatment had a positive effect on the acetic acid reduction (21.5 wt.%) during pulping process.

AB - This work reports the effect of fungal pretreatment of sugarcane straw in the performance of the treated pulps. Fermentation time, fungal mycelium load and pretreatment scale were studied in the fungal treatment, and the best conditions were 15 days with 250 mg kg-1 fungal mycelium per straw weight causing high lignin decomposition. At the largest scale tested (50 g straw) lignin degradation exceeded cellulose degradation by 2.4-fold. Acetosolv pulping was carried out in a tank reactor at 120 °C. The pulping kinetics showed that for biopulps the final lignin content was around 7.5% with a reduction of 40% in the pulping time to reach 12.5% pulp lignin, besides the factorial design showed that the biological pretreatment had a positive effect on the acetic acid reduction (21.5 wt.%) during pulping process.

KW - Biological pretreatment

KW - Biopulping

KW - Organosolv pulping

KW - Sugarcane straw

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U2 - 10.1016/j.enzmictec.2008.03.006

DO - 10.1016/j.enzmictec.2008.03.006

M3 - Artículo en revista científica indexada

AN - SCOPUS:44449090630

SN - 0141-0229

VL - 43

SP - 220

EP - 225

JO - Enzyme and Microbial Technology

JF - Enzyme and Microbial Technology

IS - 2

ER -

Preliminary studies on fungal treatment of sugarcane straw for organosolv pulping

Abstract

Bibliographical note

Keywords

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