Proteus vulgaris

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Sandra Helinck - One of the best experts on this subject based on the ideXlab platform.

  • Effects of Proteus vulgaris growth on the establishment of a cheese microbial community and on the production of volatile aroma compounds in a model cheese.
    Journal of Applied Microbiology, 2009
    Co-Authors: Pawinee Deetae, Henry-eric Spinnler, Francoise Irlinger, Pascal Bonnarme, Jerome Mounier, Sandra Helinck
    Abstract:

    Aims: To investigate the impact of Proteus vulgaris growth on a multispecies ecosystem and on volatile aroma compound production during cheese ripening. Methods and Results: The microbial community dynamics and the production of volatile aroma compounds of a nine-species cheese ecosystem were compared with or without the presence of P. vulgaris in the initial inoculum. Proteus vulgaris was able to colonize the cheese surface and it was one of the dominant species, representing 37% of total isolates at the end of ripening with counts of 9Æ2 log10 CFU g)1. In the presence of P. vulgaris, counts of Arthrobacter arilaitensis, Brevibacterium aurantiacum and Hafnia alvei significantly decreased. Proteus vulgaris influenced the production of total volatile aroma compounds with branched-chain aldehydes and their corresponding alcohols being most abundant. Conclusions: Proteus vulgaris was able to successfully implant itself in a complex cheese ecosystem and significantly contributed to the organoleptic properties of cheese during ripening. This bacterium also interacted negatively with other bacteria in the ecosystem studied. Significance and Impact of the Study: This is the first time that the impact of a Gram-negative bacterium

  • effects of Proteus vulgaris growth on the establishment of a cheese microbial community and on the production of volatile aroma compounds in a model cheese
    Journal of Applied Microbiology, 2009
    Co-Authors: Pawinee Deetae, Henry-eric Spinnler, Francoise Irlinger, Pascal Bonnarme, Jerome Mounier, Sandra Helinck
    Abstract:

    Aims: To investigate the impact of Proteus vulgaris growth on a multispecies ecosystem and on volatile aroma compound production during cheese ripening. Methods and Results: The microbial community dynamics and the production of volatile aroma compounds of a nine-species cheese ecosystem were compared with or without the presence of P. vulgaris in the initial inoculum. Proteus vulgaris was able to colonize the cheese surface and it was one of the dominant species, representing 37% of total isolates at the end of ripening with counts of 9AE2 log10 CFU g )1 . In the presence of P. vulgaris, counts of Arthrobacter arilaitensis, Brevibacterium aurantiacum and Hafnia alvei significantly decreased. Proteus vulgaris influenced the production of total volatile aroma compounds with branched-chain aldehydes and their corresponding alcohols being most abundant. Conclusions: Proteus vulgaris was able to successfully implant itself in a complex cheese ecosystem and significantly contributed to the organoleptic properties of cheese during ripening. This bacterium also interacted negatively with other bacteria in the ecosystem studied. Significance and Impact of the Study: This is the first time that the impact of a Gram-negative bacterium on cheese microbial ecology and functionality has been described.

Yuriy A. Knirel - One of the best experts on this subject based on the ideXlab platform.

  • Structure of a glucosyl phosphate-containing O-polysaccharide of Proteus vulgaris O42.
    Carbohydrate Research, 2007
    Co-Authors: A V Perepelov, Yuriy A. Knirel, A S Shashkov, Beata Bartodziejska, Marianna Wykrota, Antoni Rozalski
    Abstract:

    Abstract An O-polysaccharide was isolated by mild acid degradation of the lipopolysaccharide of Proteus vulgaris O42 and studied by sugar and methylation analyses along with 1H, 13C and 31P NMR spectroscopy. The following structure of the polysaccharide having a linear pentasaccharide phosphate repeating unit was established: Download : Download full-size image where the degree of O-acetylation is ∼80% on GlcNAc and ∼40% on each of the FucNAc residues. A weak serological cross-reaction of anti-P. vulgaris O42 serum with the lipopolysaccharide of P. vulgaris O39 was observed and accounted for by the sharing of a disaccharide fragment of the O-polysaccharides.

  • STRUCTURE AND CROSS-REACTIVITY OF THE O-ANTIGEN OF Proteus vulgaris O8
    Carbohydrate Research, 1999
    Co-Authors: A V Perepelov, Antoni Rozalski, D Babicka, A S Shashkov, N P Arbatsky, S N Senchenkova, Yuriy A. Knirel
    Abstract:

    Abstract A high-molecular-mass O-specific polysaccharide was obtained by mild acid degradation of Proteus vulgaris O8 lipopolysaccharide followed by gel permeation chromatography. Studies of the polysaccharide by sugar and methylation analyses and 1H and 13C NMR spectroscopy, including 2D COSY, TOCSY, NOESY, and H-detected 1H,13C heteronuclear multiple-quantum coherence (HMQC) experiments, demonstrated the presence of a tetrasaccharide repeating unit having the following structure: Download : Download full-size image The role of an epitope associated with the α- l -FucpNAc-(1→3)- d -GlcpNAc disaccharide in serological cross-reactivity of P. vulgaris O8 is discussed.

  • structure and serological specificity of a new acidic o specific polysaccharide of Proteus vulgaris o45
    FEBS Journal, 1999
    Co-Authors: Beata Bartodziejska, Antoni Rozalski, A S Shashkov, Agnieszka Torzewska, Aleksei A Grachev, Andrzej Ziolkowski, Nikolay A Paramonov, Yuriy A. Knirel
    Abstract:

    The following structure of the O-specific polysaccharide (OPS) of Proteus vulgaris O45 lipopolysaccharide (LPS) was established using 1H- and 13C-NMR spectroscopy, including two-dimensional NOESY and H-detected 1H, 13C heteronuclear multiple-quantum coherence (HMQC) experiments: Immunochemical studies, using rabbit polyclonal anti-P. vulgaris O45 serum and LPS, OPS and Smith-degraded OPS of P. vulgaris O45, showed the importance of β-d-GlcA in manifesting the serological specificity of the O-antigen studied.

  • structure of the o specific polysaccharide of Proteus vulgaris o25 containing 3 o r 1 carboxyethyl d glucose
    FEBS Journal, 1997
    Co-Authors: Yuriy A. Knirel, Evgeny V. Vinogradov, A S Shashkov, Andrzej Ziolkowski, Nikolay A Paramonov, Wieslaw Kaca, Maciej Cedzynski, Antoni Rozalski
    Abstract:

    The O-specific polysaccharide of Proteus vulgaris 025 was studied by acid hydrolysis and by 1H-NMR and 13C-NMR spectroscopies, including one-dimensional NOE and two-dimensional COSY and heteronuclear 13C,1H correlation (HETCOR) spectroscopy. The polysaccharide was found to contain 3-O-[(R)-1-carboxyethyl]-D-gIucose (D-RGLC), and the following structure of the pentasaccharide repeating unit was established:

A S Shashkov - One of the best experts on this subject based on the ideXlab platform.

  • Structure of a glucosyl phosphate-containing O-polysaccharide of Proteus vulgaris O42.
    Carbohydrate Research, 2007
    Co-Authors: A V Perepelov, Yuriy A. Knirel, A S Shashkov, Beata Bartodziejska, Marianna Wykrota, Antoni Rozalski
    Abstract:

    Abstract An O-polysaccharide was isolated by mild acid degradation of the lipopolysaccharide of Proteus vulgaris O42 and studied by sugar and methylation analyses along with 1H, 13C and 31P NMR spectroscopy. The following structure of the polysaccharide having a linear pentasaccharide phosphate repeating unit was established: Download : Download full-size image where the degree of O-acetylation is ∼80% on GlcNAc and ∼40% on each of the FucNAc residues. A weak serological cross-reaction of anti-P. vulgaris O42 serum with the lipopolysaccharide of P. vulgaris O39 was observed and accounted for by the sharing of a disaccharide fragment of the O-polysaccharides.

  • Structure and cross-reactivity of the O-antigen of Proteus vulgaris O8.
    Carbohydrate research, 1999
    Co-Authors: A V Perepelov, D Babicka, A S Shashkov, N P Arbatsky, S N Senchenkova, A Rozalski, Y A Knirel
    Abstract:

    A high-molecular-mass O-specific polysaccharide was obtained by mild acid degradation of Proteus vulgaris O8 lipopolysaccharide followed by gel permeation chromatography. Studies of the polysaccharide by sugar and methylation analyses and 1H and 13C NMR spectroscopy, including 2D COSY, TOCSY, NOESY, and H-detected 1H, 13C heteronuclear multiple-quantum coherence (HMQC) experiments, demonstrated the presence of a tetrasaccharide repeating unit having the following structure: [sequence: see text] The role of an epitope associated with the alpha-L-FucpNAc-(1-->3)-D-GlcpNAc disaccharide in serological cross-reactivity of P. vulgaris O8 is discussed.

  • STRUCTURE AND CROSS-REACTIVITY OF THE O-ANTIGEN OF Proteus vulgaris O8
    Carbohydrate Research, 1999
    Co-Authors: A V Perepelov, Antoni Rozalski, D Babicka, A S Shashkov, N P Arbatsky, S N Senchenkova, Yuriy A. Knirel
    Abstract:

    Abstract A high-molecular-mass O-specific polysaccharide was obtained by mild acid degradation of Proteus vulgaris O8 lipopolysaccharide followed by gel permeation chromatography. Studies of the polysaccharide by sugar and methylation analyses and 1H and 13C NMR spectroscopy, including 2D COSY, TOCSY, NOESY, and H-detected 1H,13C heteronuclear multiple-quantum coherence (HMQC) experiments, demonstrated the presence of a tetrasaccharide repeating unit having the following structure: Download : Download full-size image The role of an epitope associated with the α- l -FucpNAc-(1→3)- d -GlcpNAc disaccharide in serological cross-reactivity of P. vulgaris O8 is discussed.

  • structure and serological specificity of a new acidic o specific polysaccharide of Proteus vulgaris o45
    FEBS Journal, 1999
    Co-Authors: Beata Bartodziejska, Antoni Rozalski, A S Shashkov, Agnieszka Torzewska, Aleksei A Grachev, Andrzej Ziolkowski, Nikolay A Paramonov, Yuriy A. Knirel
    Abstract:

    The following structure of the O-specific polysaccharide (OPS) of Proteus vulgaris O45 lipopolysaccharide (LPS) was established using 1H- and 13C-NMR spectroscopy, including two-dimensional NOESY and H-detected 1H, 13C heteronuclear multiple-quantum coherence (HMQC) experiments: Immunochemical studies, using rabbit polyclonal anti-P. vulgaris O45 serum and LPS, OPS and Smith-degraded OPS of P. vulgaris O45, showed the importance of β-d-GlcA in manifesting the serological specificity of the O-antigen studied.

  • structure of the o specific polysaccharide of Proteus vulgaris o25 containing 3 o r 1 carboxyethyl d glucose
    FEBS Journal, 1997
    Co-Authors: Yuriy A. Knirel, Evgeny V. Vinogradov, A S Shashkov, Andrzej Ziolkowski, Nikolay A Paramonov, Wieslaw Kaca, Maciej Cedzynski, Antoni Rozalski
    Abstract:

    The O-specific polysaccharide of Proteus vulgaris 025 was studied by acid hydrolysis and by 1H-NMR and 13C-NMR spectroscopies, including one-dimensional NOE and two-dimensional COSY and heteronuclear 13C,1H correlation (HETCOR) spectroscopy. The polysaccharide was found to contain 3-O-[(R)-1-carboxyethyl]-D-gIucose (D-RGLC), and the following structure of the pentasaccharide repeating unit was established:

Pawinee Deetae - One of the best experts on this subject based on the ideXlab platform.

  • Effects of Proteus vulgaris growth on the establishment of a cheese microbial community and on the production of volatile aroma compounds in a model cheese.
    Journal of Applied Microbiology, 2009
    Co-Authors: Pawinee Deetae, Henry-eric Spinnler, Francoise Irlinger, Pascal Bonnarme, Jerome Mounier, Sandra Helinck
    Abstract:

    Aims: To investigate the impact of Proteus vulgaris growth on a multispecies ecosystem and on volatile aroma compound production during cheese ripening. Methods and Results: The microbial community dynamics and the production of volatile aroma compounds of a nine-species cheese ecosystem were compared with or without the presence of P. vulgaris in the initial inoculum. Proteus vulgaris was able to colonize the cheese surface and it was one of the dominant species, representing 37% of total isolates at the end of ripening with counts of 9Æ2 log10 CFU g)1. In the presence of P. vulgaris, counts of Arthrobacter arilaitensis, Brevibacterium aurantiacum and Hafnia alvei significantly decreased. Proteus vulgaris influenced the production of total volatile aroma compounds with branched-chain aldehydes and their corresponding alcohols being most abundant. Conclusions: Proteus vulgaris was able to successfully implant itself in a complex cheese ecosystem and significantly contributed to the organoleptic properties of cheese during ripening. This bacterium also interacted negatively with other bacteria in the ecosystem studied. Significance and Impact of the Study: This is the first time that the impact of a Gram-negative bacterium

  • effects of Proteus vulgaris growth on the establishment of a cheese microbial community and on the production of volatile aroma compounds in a model cheese
    Journal of Applied Microbiology, 2009
    Co-Authors: Pawinee Deetae, Henry-eric Spinnler, Francoise Irlinger, Pascal Bonnarme, Jerome Mounier, Sandra Helinck
    Abstract:

    Aims: To investigate the impact of Proteus vulgaris growth on a multispecies ecosystem and on volatile aroma compound production during cheese ripening. Methods and Results: The microbial community dynamics and the production of volatile aroma compounds of a nine-species cheese ecosystem were compared with or without the presence of P. vulgaris in the initial inoculum. Proteus vulgaris was able to colonize the cheese surface and it was one of the dominant species, representing 37% of total isolates at the end of ripening with counts of 9AE2 log10 CFU g )1 . In the presence of P. vulgaris, counts of Arthrobacter arilaitensis, Brevibacterium aurantiacum and Hafnia alvei significantly decreased. Proteus vulgaris influenced the production of total volatile aroma compounds with branched-chain aldehydes and their corresponding alcohols being most abundant. Conclusions: Proteus vulgaris was able to successfully implant itself in a complex cheese ecosystem and significantly contributed to the organoleptic properties of cheese during ripening. This bacterium also interacted negatively with other bacteria in the ecosystem studied. Significance and Impact of the Study: This is the first time that the impact of a Gram-negative bacterium on cheese microbial ecology and functionality has been described.

Antoni Rozalski - One of the best experts on this subject based on the ideXlab platform.

  • Structure of a glucosyl phosphate-containing O-polysaccharide of Proteus vulgaris O42.
    Carbohydrate Research, 2007
    Co-Authors: A V Perepelov, Yuriy A. Knirel, A S Shashkov, Beata Bartodziejska, Marianna Wykrota, Antoni Rozalski
    Abstract:

    Abstract An O-polysaccharide was isolated by mild acid degradation of the lipopolysaccharide of Proteus vulgaris O42 and studied by sugar and methylation analyses along with 1H, 13C and 31P NMR spectroscopy. The following structure of the polysaccharide having a linear pentasaccharide phosphate repeating unit was established: Download : Download full-size image where the degree of O-acetylation is ∼80% on GlcNAc and ∼40% on each of the FucNAc residues. A weak serological cross-reaction of anti-P. vulgaris O42 serum with the lipopolysaccharide of P. vulgaris O39 was observed and accounted for by the sharing of a disaccharide fragment of the O-polysaccharides.

  • STRUCTURE AND CROSS-REACTIVITY OF THE O-ANTIGEN OF Proteus vulgaris O8
    Carbohydrate Research, 1999
    Co-Authors: A V Perepelov, Antoni Rozalski, D Babicka, A S Shashkov, N P Arbatsky, S N Senchenkova, Yuriy A. Knirel
    Abstract:

    Abstract A high-molecular-mass O-specific polysaccharide was obtained by mild acid degradation of Proteus vulgaris O8 lipopolysaccharide followed by gel permeation chromatography. Studies of the polysaccharide by sugar and methylation analyses and 1H and 13C NMR spectroscopy, including 2D COSY, TOCSY, NOESY, and H-detected 1H,13C heteronuclear multiple-quantum coherence (HMQC) experiments, demonstrated the presence of a tetrasaccharide repeating unit having the following structure: Download : Download full-size image The role of an epitope associated with the α- l -FucpNAc-(1→3)- d -GlcpNAc disaccharide in serological cross-reactivity of P. vulgaris O8 is discussed.

  • structure and serological specificity of a new acidic o specific polysaccharide of Proteus vulgaris o45
    FEBS Journal, 1999
    Co-Authors: Beata Bartodziejska, Antoni Rozalski, A S Shashkov, Agnieszka Torzewska, Aleksei A Grachev, Andrzej Ziolkowski, Nikolay A Paramonov, Yuriy A. Knirel
    Abstract:

    The following structure of the O-specific polysaccharide (OPS) of Proteus vulgaris O45 lipopolysaccharide (LPS) was established using 1H- and 13C-NMR spectroscopy, including two-dimensional NOESY and H-detected 1H, 13C heteronuclear multiple-quantum coherence (HMQC) experiments: Immunochemical studies, using rabbit polyclonal anti-P. vulgaris O45 serum and LPS, OPS and Smith-degraded OPS of P. vulgaris O45, showed the importance of β-d-GlcA in manifesting the serological specificity of the O-antigen studied.

  • structure of the o specific polysaccharide of Proteus vulgaris o25 containing 3 o r 1 carboxyethyl d glucose
    FEBS Journal, 1997
    Co-Authors: Yuriy A. Knirel, Evgeny V. Vinogradov, A S Shashkov, Andrzej Ziolkowski, Nikolay A Paramonov, Wieslaw Kaca, Maciej Cedzynski, Antoni Rozalski
    Abstract:

    The O-specific polysaccharide of Proteus vulgaris 025 was studied by acid hydrolysis and by 1H-NMR and 13C-NMR spectroscopies, including one-dimensional NOE and two-dimensional COSY and heteronuclear 13C,1H correlation (HETCOR) spectroscopy. The polysaccharide was found to contain 3-O-[(R)-1-carboxyethyl]-D-gIucose (D-RGLC), and the following structure of the pentasaccharide repeating unit was established:

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