DataExpo GAKG DeepReport Navigation

Copyright©2015-2024 Acemap, Inc. Shanghai Jiao Tong University. All rights reserved.

沪ICP备18028330号

LG

Luiz Gustavo Covizzi

Universidade Federal do Paraná

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Robert F. H. Dekker

Universidade Tecnológica Federal do Paraná

Ellen Cristine Giese

Centro de Tecnologia Mineral

Aneli M. Barbosa

Universidade Estadual de Londrina

Maria de Lourdes Corradi da Silva

Universidade Estadual Paulista (Unesp)

Carolina Castilho Garcia

Universidade Tecnológica Federal do Paraná

Maria Aparecida Mauro

Universidade Estadual Paulista (Unesp)

Keila de Souza Silva

Universidade Estadual de Maringá

Fabio Shindi Uchidate

Universidade Estadual Paulista (Unesp)

Roberto da Silva

Universidade Estadual Paulista (Unesp)

Nilson K. Monteiro

Universidade Estadual Paulista (Unesp)

Cooperative Institutions

Universidade Estadual Paulista (Unesp)

Universidade Estadual de Londrina

Universidade de São Paulo

Universidade Tecnológica Federal do Paraná

Lakehead University

Universidade Estadual de Campinas (UNICAMP)

Murdoch University

University of Castilla-La Mancha

Centro Universitário de Rio Preto

Universidade do Oeste Paulista

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Influência de Tween na produção de lacases constitutivas e indutivas pelo Botryosphaeria sp

Acta Scientiarum Biological Sciences (2004)

Aneli M. Barbosa‐Dekker Ellen Cristine Giese Luiz Gustavo Covizzi Robert F. H. Dekker

Botryosphaeria sp. is a ligninolytic fungus that produces laccase. It was previously established that veratryl alcohol (VA) strongly induced laccase production in this ascomyceteous. It is well known that surfactants such as Tween - 80 can increase the production of some fungal exo-enzymes. It has been reported that Tween-80 can also induce laccase production in basidiomycetes. In this work, the influence of Tweens 20, 40, 60 and 80 on the production of constitutive laccases (in the absence of VA) and inducible laccases (in the presence of VA) by Botryosphaeria sp. was evaluated, separately. Laccase activity was assayed using two putative laccase substrates: ABTS (PPO - I) and DMP (PPO - II). All of the Tweens examined increased the production of both constitutive and inducible laccase PPO - I, but did not affect the production of constitutive laccase PPO - II. Tweens 60 and 20 increased the production of inducible laccase PPO - II, while Tween 80 and 40 did not cause any effect

ABTS

10.4025/actascibiolsci.v26i4.1536

Cite

Citations (10)

Enzymatic hydrolysis of botryosphaeran and laminarin by β-1,3-glucanases produced by Botryosphaeria rhodina and Trichoderma harzianum Rifai

Process Biochemistry (2006)

Ellen Cristine Giese Luiz Gustavo Covizzi Robert F. H. Dekker Nilson K. Monteiro Maria de Lourdes Corradi da Silva

Laminarin

Trichoderma harzianum

Enzymatic Hydrolysis

Glucanase

10.1016/j.procbio.2005.12.023

Cite

Citations (28)

Branqueamento de mamão: efeito na desidratação osmótica e caracterização da invertase da fruta

Ciência Rural (2021)

Carolina Castilho Garcia Fabio Shindi Uchidate Keila de Souza Silva Luiz Gustavo Covizzi Maria Aparecida Mauro

EnglishThis research evaluated the influence of blanching on osmotic dehydration in sucrose solutions of papaya of Formosa cultivar. The characterization of invertase present in the fruits was also done. Blanching possibly caused damages to the cellular structure resulting in higher water loss, sugar gain and, thus, effective diffusion coefficients than fresh papayas during osmotic dehydration. The invertase extracted from papaya pulp presented optimum temperature of 45 °C and optimum pH of 4.8. Considering the low production cost of papaya and the invertase characteristics, the fruit shows to be a potential source for the referred enzyme extraction portuguesO objetivo desse trabalho foi avaliar a influencia do branqueamento na desidratacao osmotica de mamao Formosa em solucoes de sacarose. A caracterizacao da invertase presente nos frutos tambem foi realizada. O branqueamento possivelmente danificou a estrutura celular do vegetal resultando em maior perda de agua, ganho de acucar e, consequentemente, maior coeficiente de difusao do que os mamoes frescos apos a desidratacao osmotica. A invertase extraida da polpa do mamao apresentou temperatura otima de 45 °C e pH otimo de 4.8. Considerando o baixo custo de producao do mamao e as caracteristicas da invertase, essa fruta apresenta-se como potencial fonte de extracao da enzima.

Osmotic dehydration

Blanching

Cite

Citations (0)

Imobilização de células microbianas e suas aplicações biotecnológicas

Semina Ciências Exatas e Tecnológicas (2007)

Luiz Gustavo Covizzi Ellen Cristine Giese Eleni Gomes Robert F. H. Dekker Roberto da Silva

This work presents an overview of different methods and carriers used to immobilize microbial cells. Methods of adsorption, entrapment and encapsulation of microorganisms are discussed, as well as of natural immobilization. The use of physical and chemical proceedings to immobilize cells in order to enhance the yields of bacteria, yeast and fungal metabolites by fermentation processes are described, as well as their biotechnological applications as biocatalystis.

10.5433/1679-0375.2007v28n2p143

Cite

Citations (31)

Comparison of Botryosphaeran production by the ascomyceteous fungusBotryosphaeria sp., grown on different carbohydrate carbon sources, and their partial structural features

Journal of Basic Microbiology (2004)

Rosangela M. Steluti Ellen Cristine Giese Mariane M. Piggato Andressa F. G. Sumiya Luiz Gustavo Covizzi

Abstract The influence of glucose concentration and other carbohydrates (monosaccharides: fructose, galactose, mannose; polyols: mannitol and sorbitol; disaccharides: lactose, sucrose and commercial sucrose; and industrial sugarcane molasses) were compared as sole carbon sources for the production of Botryosphaeran, an exopolysaccharide (EPS) produced by Botryosphaeria sp. The optimum glucose concentration for EPS production was 50 g l –1 . With the exception of mannitol, the fungus produced EPS on all carbon sources studied, with highest yields occurring with sucrose followed by glucose. All EPS showed exclusively glucose after acid hydrolysis and monosaccharide analysis. FTIR spectroscopy demonstrated the presence of β‐anomers indicating that all the EPS produced by Botryosphaeria sp. on the different carbon sources were essentially of the β‐ D ‐glucan type. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Monosaccharide

Carbon fibers

10.1002/jobm.200410415

Cite

Citations (63)

Influence of nutrients on enhancing laccase production by Botryosphaeria rhodina MAMB-05.

Robert F. H. Dekker Aneli M. Barbosa Ellen Cristine Giese Saulo D S Godoy Luiz Gustavo Covizzi

Carbon source

Cite

Citations (69)

Seleção de um suporte sintético para imobilizar células do Botryospaheria rhodina e comparação da produção de lacase por células livres e imobilizadas

Aleph UCLA Undergraduate Research Journal for the Humanities and Social Sciences (2007)

Luiz Gustavo Covizzi

Cite

Citations (0)

Botryosphaeran, a new substrate for the production of β-1,3-glucanases by Botryosphaeria rhodina and Trichoderma harzianum Rifai

Process Biochemistry (2005)

Ellen Cristine Giese Luiz Gustavo Covizzi Dionísio Borsato Robert F. H. Dekker Maria de Lourdes Corradi da Silva

Glucanase

Trichoderma harzianum

Botryosphaeria

Trichoderma

10.1016/j.procbio.2005.04.004

Cite

Citations (18)

Blanching of papaya: effect on osmotic dehydration and characterization of the fruit invertase

Ciência Rural (2021)

Carolina Castilho Garcia Fabio Shindi Uchidate Keila de Souza Silva Luiz Gustavo Covizzi Maria Aparecida Mauro

ABSTRACT: This research evaluated the influence of blanching on osmotic dehydration in sucrose solutions of papaya of Formosa cultivar. The characterization of invertase present in the fruits was also done. Blanching possibly caused damages to the cellular structure resulting in higher water loss, sugar gain and, thus, effective diffusion coefficients than fresh papayas during osmotic dehydration. The invertase extracted from papaya pulp presented optimum temperature of 45 °C and optimum pH of 4.8. Considering the low production cost of papaya and the invertase characteristics, the fruit shows to be a potential source for the referred enzyme extraction.

Blanching

Osmotic dehydration

Osmosis

10.1590/0103-8478cr20200725

Cite

Citations (2)