Bioconversion of eucalyptus bark waste into soil conditioner

Yadav, K. R.; Sharma, Rajesh K.; Kothari, R. M.

doi:10.1016/s0960-8524(01)00061-x

Cited by 32 publications

(20 citation statements)

References 9 publications

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“…The ash content of bark was 1.96%, which is lower than some previously reported values for Eucalyptus globulus, e.g., 4.7% (Vázquez et al 2008) and 4.9% (Yadav et al 2002), but similar to other reported values, e.g., 2.9% (Miranda et al 2012) and 2.3% (Mota et al 2012, Pereira 1988. The wood had nearly five times less ash (0.42%) than bark, which is in agreement with published results (Queiroz 1973;Pereira and Sardinha 1984).…”

Section: Chemical Compositioncontrasting

confidence: 65%

Modeling and Optimization of Eucalyptus globulus Bark and Wood Delignification using Response Surface Methodology

Neiva¹,

Gominho²,

Pereira³

2014

BioResources

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Statistical models and optimization of Eucalyptus globulus Labill. wood and bark delignification were achieved using response surface methodology (RSM). A central composite design was outlined to model the simultaneous influence of active alkali (AA), reaction temperature (T), and reaction time (t) on pulp yield (η) and kappa number (k) during the kraft pulping of wood and bark. Experimental results were fitted to a second-order polynomial with linear interaction of factors. The statistical models showed high coefficients of determination for both wood (R . Using these models, the optimum conditions to attain a pulp with the highest yield at an acceptable kappa number (below 17) were determined. For wood, the pulp yield was 51.6% (51.5% predicted) and the kappa number was 16.1 (16.9 predicted) under optimized conditions (AA = 21%, T = 151 ºC, and t = 118 min). For bark, the pulp yield was 51.3% (51.0% predicted) and the kappa number was 19.4 (16.9 predicted) under optimized conditions (AA = 15%, T = 166 ºC, and t = 114 min). The degree of polymerization (DP) of the carbohydrates for the optimized pulps, 1430 and 1151 for wood and bark, respectively, suggests low levels of polysaccharide degradation. The bark delignification showed similar behavior to wood.

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Section: Chemical Compositioncontrasting

confidence: 65%

Modeling and Optimization of Eucalyptus globulus Bark and Wood Delignification using Response Surface Methodology

Neiva¹,

Gominho²,

Pereira³

2014

BioResources

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“…have not only imparted the attributes of soil conditioners, but also retarded the incidence of pests, presumably due to presence of terpenoids, alkaloids and flavonoids in the bark (Yadav et al, 2002).…”

Section: Use Of Soil Conditionersmentioning

confidence: 99%

Sustainable Irrigation Practices in India

Rajapure¹,

Kothari²

2012

Irrigation Systems and Practices in Challenging Environments

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“…As pesquisas relacionadas à utilização de fungos causadores de podridão branca têm aumentado a atenção nos últi-mos anos devido ao reconhecimento da sua importância em diferentes áreas da ciência como, por exemplo, na biodegradação de compostos xenobióticos (Rabinovich et al, 2004;Tortella et al 2005;Patel et al, 2009) e decomposição de resí-duos madeireiros (Yadav et al, 2002;Luna et al, 2004;Fernandes et al, 2005;Alfenas et al, 2007;Van Heerden et al, 2008).…”

Section: Introductionunclassified

“…O processo de avaliação de microrganismos quanto ao potencial biodegradador pode ser realizado com base, por exemplo, no crescimento micelial (Yadav et al, 2002), densidade micelial ou vigor micelial (Abreu et al, 2007), perda de massa (Fernandes et al, 2005;Abreu et al, 2007), produção de biomassa (Paes et al, 2002) e atividade enzimática (Wesenberg et al 2003, Rabinovich et al, 2004Tang & Zhong, 2004).…”

Section: Introductionunclassified

Avaliação do potencial de degradação de fungos causadores de podridão branca

Silva

Marino

Lopes

et al. 2010

Agraria

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O objetivo deste trabalho foi avaliar o potencial degradador in vitro de fungos causadores de podridão branca em serragem de clones de eucalipto. As espécies fúngicas de podridão branca utilizadas nos testes in vitro foram: Pycnoporus sanguineus, Phellinus gilvus e Schizophyllum commune. O experimento foi realizado em arranjo fatorial 3 x 3, disposto em delineamento inteiramente casualizado. Os parâmetros analisados foram: diâmetro do crescimento micelial (cm), velocidade de crescimento (cm dia -1 ), densidade micelial dos isolados fúngicos e perda de massa da serragem (%). Os isolados Phellinus gilvus e Pycnoporus sanguineus apresentaram maior velocidade de crescimento e resultaram em maior perda de massa da serragem em relação ao Schizophyllum commune. Pycnoporus sanguineus apresentou maior adensamento micelial que os demais isolados em todos os clones testados. Dentre os clones testados, o 2361 foi o que resultou em menor velocidade de crescimento dos isolados fún-gicos e menor perda de massa da serragem, mas favoreceu a formação de micélio mediamente a fortemente adensado em todos os isolados fúngicos. Dos isolados testados, Pycnoporus sanguineus e Phellinus gilvus foram os mais eficientes na degradação in vitro da serragem de eucalipto. Palavras-chave: biodegradação, basidiomicetos, eucaliptoEvaluating the degradation potential of whiterot fungi AB S TR ACTThe objective of this work was to evaluate the in vitro degrading potential of white-rot fungi in sawdust of eucalyptus clones. The white-rot fungi species tested were: Pycnoporus sanguineus, Phellinus gilvus and Schizophyllum commune. The experiment was carried out in factorial arrangement 3 x 3, displayed in a completed randomized design. The analysed parameters were: diameter of the mycelial growth (cm), speed of growth (cm day -1 ), mycelial density of the fungal isolate and loss of sawdust mass (%). The isolated Pycnoporus sanguineus and Phellinus gilvus presented higher speed growth and resulted in higher loss of sawdust mass when compared to Schizophyllum commune. Pycnoporus sanguineus presented the highest mycelial density in all clones tested. Clone 2361 resulted in the smallest fungal isolate growth and smaller loss of sawdust mass, but it favored the formation of moderately and highly dense mycelial in all isolates. The most efficient in in vitro degradation of eucalyptus sawdust was achieved with Pycnoporus sanguineus and Phellinus gilvus.

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Bioconversion of eucalyptus bark waste into soil conditioner

Cited by 32 publications

References 9 publications

Modeling and Optimization of Eucalyptus globulus Bark and Wood Delignification using Response Surface Methodology

Modeling and Optimization of Eucalyptus globulus Bark and Wood Delignification using Response Surface Methodology

Sustainable Irrigation Practices in India

Avaliação do potencial de degradação de fungos causadores de podridão branca

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