推薦產品
agency
APHA
ISO 11290
品質等級
法律遵循
according to FDA (BAM)
無菌
sterile; γ-irradiated
形狀
medium granules (dehydrated (DCM))
包裝
pkg of 60 pieces
pkg of
製造商／商標名
ReadyBag®
技術
microbiological culture: suitable
pH值
7.0-7.4 (25 °C, 55 g/L in H2O)
溶解度
55 g/L
應用
food and beverages
microbiology
pathogen testing
儲存溫度
15-25°C
適合性
Listeria spp. (spp.)
一般說明
Readybag® Half FRASER broth with supplements come in pre-weighed and gamma-irradiated to speed up and simplify food pathogen testing routines. This helps to eliminate all the media preparation steps from the workflow. The Readybag® single-use pouches remove the necessity of weighing, autoclaving, supplement handling, and extra lab space or equipment. It only requires the addition of sterile water before incubation.
The high nutrient content and the large buffer capacity of the Readybag® Half FRASER broth (with supplements) create optimum growth conditions for Listeria spp. Lithium chloride, nalidixic acid, and acriflavine hydrochloride inhibit the growth of accompanying bacteria. Esculin and ammonium iron (III) citrate forms a black complex of esculetin with iron (III) ions and facilitates the detection of β-D-glucosidase activity. But this reaction is not exclusive to Listeria spp. Hence, every primary and secondary enrichment in Fraser broth must be sub-cultured on selective plating media.
The high nutrient content and the large buffer capacity of the Readybag® Half FRASER broth (with supplements) create optimum growth conditions for Listeria spp. Lithium chloride, nalidixic acid, and acriflavine hydrochloride inhibit the growth of accompanying bacteria. Esculin and ammonium iron (III) citrate forms a black complex of esculetin with iron (III) ions and facilitates the detection of β-D-glucosidase activity. But this reaction is not exclusive to Listeria spp. Hence, every primary and secondary enrichment in Fraser broth must be sub-cultured on selective plating media.
應用
Readybag® Half FRASER broth (with supplements) is suitable for the primary selective enrichment of Listeria spp. from food and animal feed, environmental samples, and other materials.
包裝
Each sachet contains 12.5 g of granulated Half Fraser broth to which 225 mL of sterile water is added
法律資訊
READYBAG is a registered trademark of Merck KGaA, Darmstadt, Germany
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
分析證明 (COA)
輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號，寫有 ‘Lot’或‘Batch’.。
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文章
Detection of Listeria monocytogenes in food and environmental samples according to ISO 11290-1, FDA-BAM and USDA-FSIS
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