Abstract: A microorganism detection medium, said detection being based on showing the presence of a microbial enzyme activity chosen from esterase and/or osidase and/or peptidase and/or sulfatase and/or phosphatase activities of microorganisms, preferably said microbial enzyme activity being an esterase activity, said medium comprising: at least one chromogenic and/or fluorogenic substrate specific to the enzyme activity sought, preferably specific to an esterase activity, at least one alkyl(thio)glycoside, at least one solvent (S).

Abstract: Use of at least one chromogenic and/or fluorogenic phosphatase substrate for the detection and/or enumeration of enterobacteria in a sample likely to contain them, such as a food sample.

Abstract: Use of at least one chromogenic and/or fluorogenic carboxylesterase and/or triacylglycerol-lipase substrate, to detect bacteria of the Bacillus cereus group in a sample capable of containing them.

Abstract: A microorganism detection medium, said detection being based on showing the presence of a microbial enzyme activity chosen from esterase and/or osidase and/or peptidase and/or sulfatase and/or phosphatase activities of microorganisms, preferably said microbial enzyme activity being an esterase activity, said medium comprising: at least one chromogenic and/or fluorogenic substrate specific to the enzyme activity sought, preferably specific to an esterase activity, at least one alkyl(thio)glycoside, at least one solvent (S).

Abstract: A microorganism detection medium, said detection being based on showing the presence of a microbial enzyme activity chosen from esterase and/or osidase and/or peptidase and/or sulfatase and/or phosphatase activities of microorganisms, preferably said microbial enzyme activity being an esterase activity, said medium comprising: at least one chromogenic and/or fluorogenic substrate specific to the enzyme activity sought, preferably specific to an esterase activity, at least one alkyl(thio)glycoside, at least one solvent (S).

Abstract: An antimicrobial compound, as well as the salts, derivatives and analogs thereof, said compound being represented by the general formula (I): wherein R1 represents a peptide part P1 or a peptide part P2.

Abstract: An antimicrobial compound, as well as the salts, derivatives and analogues thereof, said compound being represented by the general formula (I): wherein R1 represents a peptide part P1 or a peptide part P2.

Abstract: Use of at least one chromogenic and/or fluorogenic carboxylesterase and/or triacylglycerol-lipase substrate, to detect bacteria of the Bacillus cereus group in a sample capable of containing them.

Abstract: The present invention relates to the field of microbiological testing of food. It relates to a kit comprising a reaction medium containing at least one inhibitor of Gram-negative bacteria and a fluorescent substrate specific for PC-PLC. It further relates to a diagnostic kit for identifying bacteria of the Bacillus cereus group comprising a container of a selective or nonselective reaction medium with a pH between 6.8 and 8.0, the medium comprising at least one inhibitor of Gram-negative bacteria and a fluorescent phosphatidylcholine phospholipase C (PC-PLC) substrate.

Abstract: Use of at least one chromogenic and/or fluorogenic phosphatase substrate for the detection and/or enumeration of enterobacteria in a sample likely to contain them, such as a food sample.

Abstract: A microorganism detection medium, said detection being based on showing the presence of a microbial enzyme activity chosen from esterase and/or osidase and/or peptidase and/or sulfatase and/or phosphatase activities of microorganisms, preferably said microbial enzyme activity being an esterase activity, said medium comprising: at least one chromogenic and/or fluorogenic substrate specific to the enzyme activity sought, preferably specific to an esterase activity, at least one alkyl(thio)glycoside, at least one solvent (S).

Abstract: The present invention relates to the field of microbiological testing of food. It relates to a method for identifying bacteria of the Bacillus cereus group, comprising the steps consisting in: bringing a sample that may contain bacteria of the Bacillus cereus group, a reaction medium comprising at least one fluorescent phosphatidylcholine phospholipase C substrate and an inhibitor of Gram-negative bacteria into contact, in a container; incubating all of the above together; identifying the bacteria of the Bacillus cereus group by detecting the PC-PLC substrate hydrolysis reaction, in which the pH of the reaction medium and the time necessary for detecting the PC-PLC substrate hydrolysis reaction carried out are adapted in such a way that said hydrolysis reaction by the bacteria of the Bacillus cereus group is detected before the hydrolysis of the PC-PLC substrate by the Gram-positive bacteria other than those belonging to the Bacillus cereus group, and potentially present in the sample, is detectable.

Abstract: The present invention relates to a method for identifying bacteria of the Bacillus cereus group, comprising the following steps: (a) providing a sample that may contain bacteria of the Bacillus cereus group, a reaction medium comprising at least one fluorescent phosphatidylcholine phospholipase C (PC-PLC) substrate and an inhibitor of Gram-negative bacteria; (b) inoculating the reaction medium with the sample; (c) incubating the inoculated reaction medium; and (d) identifying the bacteria of the Bacillus cereus group by detecting the PC-PLC substrate hydrolysis reaction, in which the pH of the reaction medium and the time necessary for detecting the PC-PLC substrate hydrolysis reaction are adapted such that said hydrolysis reaction by bacteria of the Bacillus cereus group is detected before hydrolysis of the PC-PLC substrate by any Gram-positive bacteria other than those belonging to the Bacillus cereus group, that may be present in the sample.

Abstract: A reaction medium for the culture and/or detection and/or identification of bacteria of the Legionella genus includes at least one siliceous compound, where the siliceous compound is a nonpolar silica. A method for detecting and/or identifying bacteria of the Legionella genus, includes bringing a sample that may contain bacteria of the Legionella genus into contact with a reaction medium comprising at least one siliceous compound, incubating, and detecting the presence of bacteria of the Legionella genus.

Abstract: The present invention relates to a reaction medium comprising at least one beta-glucosidase substrate and a compound of the general formula Ar-beta-D-glucoside where Ar- designates an aromatic compound, different from said substrate. According to the invention, such a medium can be employed in a C. difficile detection and/or identification process.

Abstract: The present invention relates to the field of microbiological testing of food. It relates to a method for identifying bacteria of the Bacillus cereus group, comprising the steps consisting in: bringing a sample that may contain bacteria of the Bacillus cereus group, a reaction medium comprising at least one fluorescent phosphatidylcholine phospholipase C substrate and an inhibitor of Gram-negative bacteria into contact, in a container; incubating all of the above together; identifying the bacteria of the Bacillus cereus group by detecting the PC-PLC substrate hydrolysis reaction, in which the pH of the reaction medium and the time necessary for detecting the PC-PLC substrate hydrolysis reaction carried out are adapted in such a way that said hydrolysis reaction by the bacteria of the Bacillus cereus group is detected before the hydrolysis of the PC-PLC substrate by the Gram-positive bacteria other than those belonging to the Bacillus cereus group, and potentially present in the sample, is detectable.

Abstract: A reaction medium for the culture and/or detection and/or identification of bacteria of the Legionella genus includes at least one siliceous compound, where the siliceous compound is a nonpolar silica. A method for detecting and/or identifying bacteria of the Legionella genus, includes bringing a sample that may contain bacteria of the Legionella genus into contact with a reaction medium comprising at least one siliceous compound, incubating, and detecting the presence of bacteria of the Legionella genus.