Culture device for lactic acid bacteria

    公开(公告)号:US10995356B2

    公开(公告)日:2021-05-04

    申请号:US15569579

    申请日:2016-04-26

    Abstract: The present disclosure provides a culture device for enumerating colonies of microorganisms. The device can comprise a base, a coversheet, and a nonporous spacer member disposed therebetween. The spacer member comprises an aperture that defines a growth compartment. Disposed in the growth compartment are a cold water-soluble gelling agent, a dry oxygen-scavenging reagent, a dry buffer system, and an effective amount of a dry carbon dioxide-generating reagent. The buffer system is selected such that, when the growth compartment is hydrated with a predetermined volume of deionized water, an aqueous mixture with a pH less than or equal to 6.35 is formed.

    METHOD OF DETECTING A SALMONELLA MICROORGANISM
    2.
    发明申请
    METHOD OF DETECTING A SALMONELLA MICROORGANISM 有权
    检测沙门氏菌微生物的方法

    公开(公告)号:US20140356888A1

    公开(公告)日:2014-12-04

    申请号:US14368525

    申请日:2012-12-18

    Abstract: A method of detecting a Salmonella microorganism is provided. The method includes the use of a selective growth medium, a first indicator system that is converted to a first detectable product by a Salmonella microorganism, and a second indicator system that is converted to a second detectable product by β-galactosidase enzyme activity. The method further comprises inoculating the growth medium and incubating the inoculated growth medium at a temperature higher than 40 degrees C.

    Abstract translation: 提供了一种检测沙门氏菌微生物的方法。 该方法包括使用选择性生长培养基,通过沙门氏菌微生物转化为第一可检测产物的第一指示剂系统和通过β-半乳糖苷酶活性转化为第二可检测产物的第二指示剂系统。 该方法还包括接种生长培养基并在高于40℃的温度下孵育接种的生长培养基。

    Method of detecting a salmonella microorganism

    公开(公告)号:US09920350B2

    公开(公告)日:2018-03-20

    申请号:US14368711

    申请日:2012-12-19

    CPC classification number: C12Q1/10 C12Q1/045 G01N2333/255 Y02A50/451

    Abstract: A composition is provided for detecting a Salmonella microorganism in sample. The composition comprises at least one first selective agent that inhibits the growth of Gram-positive microorganisms, a first differential indicator system comprising at least one first differential indicator compound that is converted to a first detectable product by a Salmonella microorganism, and a second differential indicator system comprising a second differential indicator compound that is converted by urease enzyme activity to a second detectable product. Optionally, the composition may comprise a third differential indicator system comprising a third differential indicator compound that is converted by a β-galactosidase enzyme activity to a third detectable product. Methods of using the composition to detect a Salmonella microorganism are also provided.

    Self-contained anaerobic culture device with microcompartments

    公开(公告)号:US11072771B2

    公开(公告)日:2021-07-27

    申请号:US15763744

    申请日:2016-09-27

    Abstract: In one aspect, the present disclosure provides a device. The device includes a body comprising a waterproof base, a waterproof coversheet attached to the base, and a channel disposed between the base and the coversheet. The channel has a perimeter and an opening that provides liquid access to the channel. A portion of the perimeter is defined by a waterproof seal. A dry first oxygen-scavenging reagent and an indicator reagent for detecting sulfate reduction by a sulfate-reducing bacterium are disposed in the device between the base and the coversheet. The waterproof base comprises a plurality of open microcompartment structures facing the coversheet.

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