Enzyme production and chemical alterations of Eucalyptus grandis wood during biodegradation by Ceriporiopsis subvermispora in cultures supplemented with Mn2+, corn steep liquor and glucose

Vicentim, Marcos Paulo; Ferraz, André

doi:10.1016/j.enzmictec.2006.05.021

Cited by 36 publications

(19 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Only MnP was detected in E. globulus decayed by C. subvermispora with values of 500 IU kg ¡1 wood after 15 days of biodegradation up to 1,000 IU kg ¡1 wood after 60 days of incubation. As previously reported, C. subvermispora did not show laccase activity during wood biodegradation of hardwood or softwood when there was no addition of carbon and nitrogen sources to the culture medium [28,40].…”

Section: Biopulping Of Eucalyptus Globulussupporting

confidence: 79%

Evaluation of the white-rot fungi Ganoderma australe and Ceriporiopsis subvermispora in biotechnological applications

Mendonça

Jara

González

et al. 2008

J Ind Microbiol Biotechnol

View full text Add to dashboard Cite

Ganoderma australe is a white-rot fungus that causes a selective wood biodelignification in some hardwoods found in the Chilean rainforest. Ceriporiopsis subvermispora is also a lignin-degrading fungus used in several biopulping studies. The enzymatic system responsible for lignin degradation in wood can also be used to degrade recalcitrant organic pollutants in liquid effluents. In this work, two strains of G. australe and one strain of C. subvermipora were comparatively evaluated in the biodegradation of ABTS and the dye Poly R-478 in liquid medium, and in the pretreatment of Eucalyptus globulus wood chips for further kraft biopulping. Laccase was detected in liquid and wood cultures with G. australe. Ceriporiopsis subvermispora produce laccase and manganese peroxidase when grown in liquid medium and only manganese peroxidase was detected during wood decay. ABTS was totally depleted by all strains after 8 days of incubation while Poly R-478 was degraded up to 40% with G. australe strains and up to 62% by C. subvermispora after 22 days of incubation. Eucalyptus globulus wood chips decayed for 15 days presented 1-6% of lignin loss and less than 2% of glucan loss. Kraft pulps with kappa number 15 were produced from biotreated wood chips with 2% less active alkali, with up to 3% increase in pulp yield and up to 20% less hexenuronic acids than pulps from undecayed control. Results showed that G. australe strains evaluated were not as efficient as C. subvermispora for dye and wood biodegradation, but could be used as a feasible alternative in biotechnological processes such as bioremediation and biopulping.

show abstract

Section: Biopulping Of Eucalyptus Globulussupporting

confidence: 79%

Evaluation of the white-rot fungi Ganoderma australe and Ceriporiopsis subvermispora in biotechnological applications

Mendonça

Jara

González

et al. 2008

J Ind Microbiol Biotechnol

View full text Add to dashboard Cite

show abstract

“…To determine the impact of various culture supplements such as glucose, corn steep liquor, and Mn 2+ on enzyme production, C. subvermispora was grown on E. grandis for two weeks, and then the extracted enzymes were evaluated, including MnP, laccase, and xylanase [154]. MnP was detected under all culture conditions, as was xylanase.…”

Section: +mentioning

confidence: 99%

Mixed Enzyme Systems for Delignification of Lignocellulosic Biomass

Woolridge

2014

Catalysts

View full text Add to dashboard Cite

Abstract:The application of enzymes such as laccase and xylanase for the preparation of cellulose from lignocellulosic material is an option for those industries seeking to reduce the use of chlorine-containing bleach agents, thus minimizing the environmental impact of their processes. Mixed hydrolytic and oxidative enzyme systems have been well described in the context of biopulping, and thus provide good precedent regarding effectiveness, despite the susceptibility of xylanase to inactivation by laccase-generated oxidants. This paper examines the progress towards development of sequential and simultaneous mixed enzyme systems to accomplish delignification.

show abstract

“…The dried plant samples were ground in a stainless steel mill to pass through a 20-mesh sieve. The milled samples were digested using a digesdahl apparatus with concentrated H 2 SO 4 and H 2 O 2 (Vicentim and Ferraz, 2007). To determine Cd content, the solution was analyzed in ICP-OES equipment.…”

Section: Methodsmentioning

confidence: 99%

Assisted phytoremediation of Cd-contaminated soil using poplar rooted cuttings

Alizadeh¹,

Zahedi-Amiri²,

Savaghebi-Firoozabadi³

et al. 2012

International Agrophysics

View full text Add to dashboard Cite

A b s t r a c t. To investigate the effect of amended substrates on cadmium uptake by one-year old poplar rooted cuttings a pot culture was carried out. Pots were filled with three substrates. Four treatments of Cd supply including were organized. The results showed that higher biomass productions in substrates A and B compare to substrate C, led to an increase total Cd uptake two times more than that in substrate C, at 150 mg kg -1 concentration. Meanwhile maximum total uptake occurred in substrate B at 100 mg kg -1 concentration. Using synthetic chelators such as ethylenediaminetetraacetic acid in order to achieve high removal rate led to increased environmental impacts while they are not expected when such environmental friendly approaches are applied.K e y w o r d s: soil, cadmium, ethylenediaminetetraacetic acid, phytoextraction, substrate

show abstract

Enzyme production and chemical alterations of Eucalyptus grandis wood during biodegradation by Ceriporiopsis subvermispora in cultures supplemented with Mn2+, corn steep liquor and glucose

Cited by 36 publications

References 30 publications

Evaluation of the white-rot fungi Ganoderma australe and Ceriporiopsis subvermispora in biotechnological applications

Evaluation of the white-rot fungi Ganoderma australe and Ceriporiopsis subvermispora in biotechnological applications

Mixed Enzyme Systems for Delignification of Lignocellulosic Biomass

Assisted phytoremediation of Cd-contaminated soil using poplar rooted cuttings

Contact Info

Product

Resources

About