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

    摘要: 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.

    DEVICE FOR ENUMERATING MICROORGANISMS

    公开(公告)号:US20210114017A1

    公开(公告)日:2021-04-22

    申请号:US17056884

    申请日:2019-05-23

    IPC分类号: B01L3/00 C12Q1/04

    摘要: A microbial detection device and methods of use are provided. The device comprises a water-proof pouch that includes a first wall portion, a second wall portion, and a porous membrane filter disposed in the pouch between the first and second wall portions. The filter membrane divides the pouch into first and second compartments. A dry, cold water-soluble gelling agent is adhered to the pouch in the first compartment and an absorbent pad is disposed in the second compartment. A release liner removably adhered to the first adhesive layer.

    Microbial detection devices including adhesive masked nutrients and methods of using the same

    公开(公告)号:US11408023B2

    公开(公告)日:2022-08-09

    申请号:US16461397

    申请日:2017-12-22

    摘要: Devices for microbial detection of microorganisms are provided including a body member including a substrate having a first major surface and a second major surface. The device further includes a substantially dry, first microbial growth nutrient composition disposed on a portion of the first major surface, a first adhesive composition adhered to the first microbial growth nutrient composition, and a cold-water-soluble first hydrogel-forming composition adhered to the first adhesive composition. The device also includes a cover sheet attached to the body member, where the cover sheet includes a first major surface facing the body member. Devices including a water-proof pouch are also provided. Methods for detecting and enumerating at least one microorganism in a sample are additionally provided, using the devices.

    DEVICE FOR GROWING MICROORGANISMS
    10.
    发明申请

    公开(公告)号:US20220213421A1

    公开(公告)日:2022-07-07

    申请号:US17610670

    申请日:2020-05-29

    摘要: A device for growing microorganisms. The device includes a body member comprising a self-supporting, water-proof substrate having upper and lower surfaces; a hydrophobic spacer element adhered to the upper surface of the substrate forming side walls to retain a predetermined amount of liquid in contact with the substrate, wherein the hydrophobic spacer element has a hole therein; a fluid control film in the hole of the hydrophobic spacer element; a cover sheet having an inner-facing surface and an outer-facing surface, the cover sheet adhered to at least a portion of the body member; and a substantially dry, first microbial growth nutrient composition disposed on a portion of the inner surface of the cover sheet; a first adhesive composition adhered to the first microbial growth nutrient composition; and a cold-water-soluble first hydrogel-forming composition adhered to the first adhesive composition.