Maria Cristina Dantas Vanetti

Prof. Maria Cristina Dantas Vanetti

Departament of Microbiology, Federal University of Viçosa (UFV), Viçosa, Brazil

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 February 2015 in Journal of Food Science and Technology
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Journal Article
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CPCláudia Vieira Prudêncio
Cláudia Vieira Prudêncio
MSMiriam Teresinha dos Santos
Miriam Teresinha dos Santos
Maria Cristina Dantas VanettiMaria Cristina Dantas Vanetti
Maria Cristina Dantas Vanetti

1 November 2014 in International Journal of Food Microbiology
Verified
Journal Article
Closed access
NPNatan De Jesus Pimentel-Filho
Natan De Jesus Pimentel-Filho
MMMayra Carla de Freitas Martins
Mayra Carla de Freitas Martins
GNGuilherme Bicalho Nogueira
Guilherme Bicalho Nogueira
HMHilario Mantovani
Hilario Mantovani
Maria Cristina Dantas VanettiMaria Cristina Dantas Vanetti
Maria Cristina Dantas Vanetti

17 July 2015 in Journal of Food Science
Verified
Journal Article
Closed access
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SMSolimar G. Machado
Solimar G. Machado
FSFernanda L. da Silva
Fernanda L. da Silva
DBDenise M.S. Bazzolli
Denise M.S. Bazzolli
Marc HeyndrickxMarc Heyndrickx
Marc Heyndrickx
PCPaulo M. de A. Costa
Paulo M. de A. Costa
Maria Cristina Dantas VanettiMaria Cristina Dantas Vanetti
Maria Cristina Dantas Vanetti

1 May 2015 in Brazilian Journal of Microbiology
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Journal Article
Open access
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MMMaurílio Lopes Martins
Maurílio Lopes Martins
UPUelinton Pinto
Uelinton Pinto
Katharina RiedelKatharina Riedel
Katharina Riedel
Maria Cristina Dantas VanettiMaria Cristina Dantas Vanetti
Maria Cristina Dantas Vanetti
The practice of refrigerating raw milk at the farm has provided a selective advantage for psychrotrophic bacteria that produce heat-stable proteases and lipases causing severe quality problems to the dairy industry. In this work, a protease (AprX) and a lipase (LipM) produced by Pseudomonas fluorescens 041, a highly proteolytic and lipolytic strain isolated from raw milk obtained from a Brazilian farm, have been purified and characterized. Both enzymes were purified as recombinant proteins from Escherichia coli. The AprX metalloprotease exhibited activity in a broad temperature range, including refrigeration, with a maximum activity at 37 °C. It was active in a pH range of 4.0 to 9.0. This protease had maximum activity with the substrates casein and gelatin in the presence of Ca+2. The LipM lipase had a maximum activity at 25 °C and a broad pH optimum ranging from 7.0 to 10. It exhibited the highest activity, in the presence of Ca+2, on substrates with long-chain fatty acid residues. These results confirm the spoilage potential of strain 041 in milk due to, at least in part, these two enzymes. The work highlights the importance of studies of this kind with strains isolated in Brazil, which has a recent history on the implementation of the cold chain at the dairy farm.


1 August 2018 in Microbial Pathogenesis
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Journal Article
Closed access
Felipe Alves de AlmeidaFelipe Alves de Almeida
Felipe Alves de Almeida
EVErika Lorena Giraldo Vargas
Erika Lorena Giraldo Vargas
DCDeisy Guimarães Carneiro
Deisy Guimarães Carneiro
UPUelinton Pinto
Uelinton Pinto
Maria Cristina Dantas VanettiMaria Cristina Dantas Vanetti
Maria Cristina Dantas Vanetti