摘要:
Provided are methods for rapid detection of microbial contaminants in fresh foods, comprising obtaining a product sample (preferably at or near the time of harvest of the product), applying, prior to any chilling of the sample or the product, an amount of a enrichment medium sufficient to cover the sample surfaces to provide a non-chilled sample for incubation, incubating the non-chilled sample for a time period and at a temperature sufficient to allow for amplification and enrichment of a non-cold-shocked target microbe, followed by recovering all or a portion of the enrichment media, concentrating the target microbes from the recovered enrichment medium, and detecting the concentrated target microbes.
摘要:
Aspects of the present invention provide novel multi-targeted microbiological screening and monitoring methods having substantial utility for monitoring and control of microbial growth and contaminants, microbiological processes, predictive microbiology, and for exposure and risk assessment. Microbial markers shared by both target and index microbes are used in novel methods for microbial monitoring, monitoring of microbial performance potential, trend analysis, and statistical process control (SPC) in processes or systems that are receptive to a plurality of genetically distinct microbes.
摘要:
Particular aspects provide a method of sampling, testing and validating test lots (e.g., single-unit production lots), comprising: assembling a plurality of product portions from each of a plurality of test lots and combining the collected product portions to provide a corresponding set of test lot samples (wherein each test lot sample is attributed to a particular corresponding test lot); enriching the set of test lot samples; removing equal portions of each enriched sample, and combining the removed portions to provide a modular composite sample; and testing of the modular composite sample for the target agent/organism, wherein where such testing is positive, individual test lots may nonetheless yet be validated by further testing of a respective enriched test lot sample and obtaining a negative test result. The methods have broad utility for monitoring all sorts of test lots (e.g., environmental lots, production lots, pharmaceutical lots, etc.) and for efficiently affecting informed, targeted remedial measures.
摘要:
Provided are integrated automated systems for quantitative and/or qualitative microbiological assessment and/or analyte assessment of samples using in situ generated culture devices. The systems comprise: an integrated automated system comprising sterile media and/or buffer reagents, culture device parts, and automated components for media and/or buffer handling, test sample handling, culture device assembly, and microbial enumeration and/or detection, all within a sterile environment; and one or more processors; and memory, including computer-executable instructions that, if executed by the one or more processors, cause the integrated automated system to determine that a coded test sample, loaded into the system, is to be quantitatively and/or qualitatively assessed, and accordingly process and microbiologically assess the coded test sample using, for quantitative assessment, one or more specified in situ generated culture devices for quantitative assessment, thereby eliminating the need to sterilize, ship, store, and/or open ex situ fabricated culture devices prior to inoculation thereof.
摘要:
Provided are sealable transport incubators for uniform incubation of sample specimens (e.g., microbial samples) during transport between two locations (e.g., microbial sampling and detection locations, the incubators comprising a multi-slot thermal-transfer divider each in uniform thermal communication with a heat source (e.g., electrical or phase change materials (PCM), and configured to provide for uniform heat transfer and distribution to the sample specimen during transport in the transport incubator. Additionally provided are methods for expediting provision of microbial assay detection results (e.g., using the disclosed sealable transport incubators).
摘要:
Aspects of the present invention provide novel multi-targeted microbiological screening and monitoring methods having substantial utility for monitoring and control of microbial growth and contaminants, microbiological processes, predictive microbiology, and for exposure and risk assessment. Microbial markers shared by both target and index microbes are used in novel methods for microbial monitoring, monitoring of microbial performance potential, trend analysis, and statistical process control (SPC) in processes or systems that are receptive to a plurality of genetically distinct microbes.
摘要:
Provided are methods for growing and shipping sprouts and microgreens in the same container, growing while in shipment using moisture provided in a water-absorbent layer, with optional added beneficials, and including methods for producing sprouts and microgreens for consumption, and for pharmaceutical/nutriceutical use, comprising growth of sprouts in retail-ready containers, the container comprising a moisture-retaining layer of agar media or the like providing water for growth and obviating the need for irrigation during sprout growth. In certain aspects, media is supplemented with beneficial organisms or additives such as probiotic microbes, vitamins (e.g., B12), cofactors, nutrients, and other items (e.g., phytochemicals, natural colors, and antioxidants) which promote the growth of the beneficial microbes on the product, and/or which become incorporated into the product. In certain aspects, added beneficial microorganisms are selected to compete antagonize human pathogens such as Listeria, Salmonella, enterohaemorrhagic E. coli, Yersinia, and/or spoilage organisms (e.g., Erwinia, Pseudomonas and Xanthomonas).
摘要:
Provided are integrated automated systems for quantitative and/or qualitative microbiological assessment and/or analyte assessment of samples using in situ generated culture devices. The systems comprise: an integrated automated system comprising sterile media and/or buffer reagents, culture device parts, and automated components for media and/or buffer handling, test sample handling, culture device assembly, and microbial enumeration and/or detection, all within a sterile environment; and one or more processors; and memory, including computer-executable instructions that, if executed by the one or more processors, cause the integrated automated system to determine that a coded test sample, loaded into the system, is to be quantitatively and/or qualitatively assessed, and accordingly process and microbiologically assess the coded test sample using, for quantitative assessment, one or more specified in situ generated culture devices for quantitative assessment, thereby eliminating the need to sterilize, ship, store, and/or open ex situ fabricated culture devices prior to inoculation thereof.
摘要:
Aspects of the present invention provide novel multi-targeted microbiological screening and monitoring methods having substantial utility for monitoring and control of microbial growth and contaminants, microbiological processes, predictive microbiology, and for exposure and risk assessment. Microbial markers shared by both target and index microbes are used in novel methods for microbial monitoring, monitoring of microbial performance potential, trend analysis, and statistical process control (SPC) in processes or systems that are receptive to a plurality of genetically distinct microbes.
摘要:
The invention provides methods and kits for the rapid confirmation of an initial analyte test result. In a preferred embodiment, the process confirms the presence of a given microbial target in a mixed culture, or a mixed enrichment media, even when the competing organisms in the mix belong to related species, or are various biotypes of the same species.