EcoCult® Half FRASER broth with antibiotics

别名:Demi FRASER broth with antibiotics

属性
Agency
APHA
ISO 11290

质量水平
200

manufacturer/tradename
EcoCult®

technique(s)
microbiological culture: suitable

application(s)
food and beverages
microbiology
pathogen testing

储存温度
10-30°C

适用性
Listeria spp. (spp.)

说明
一般描述
EcoCult® Half FRASER (Demi FRASER) broth has high nutrient content and a large buffer capacity that creates optimum growth conditions for Listeria spp. Lithium chloride, nalidixic acid, and acriflavine hydrochloride largely inhibit the growth of accompanying bacteria. The detection of the β-D-glucosidase activity is possible by the addition of aesculin and ammonium iron (III) citrate, forming a black complex of aesculin with iron (III) ions. A black coloration can develop during incubation, but this reaction is not exclusive to Listeria spp. and cultures that show no blackening cannot be assumed to be free of Listeria spp. According to EN ISO 11290-1, every primary and secondary enrichment in Fraser broth has to be sub-cultured on selective plating media. The EcoCult® Half FRASER (Demi FRASER) Broth with antibiotics already contains the antibiotics, so it is only necessary to add the Ammonium iron (III) citrate (1.00092) for the preparation of the primary selective enrichment Half Fraser broth. For the secondary enrichment step, Fraser broth can be prepared by the addition of one additional vial reconstituted FRASER Listeria selective supplements (1.00093) per 500 mL prepared Half Fraser Broth.
应用
EcoCult® Half FRASER (Demi FRASER) broth with antibiotics is used for the primary selective enrichment of Listeria spp. (including L. monocytogenes) from food and animal feed as well as from environmental samples in the area of food production and food handling and other materials.
特点和优势
Compliance to major regulatory standards ISO, FDA-BAM, EPA or USP
Clear labeling and Certificate of Analysis to check compliance at a glance
Reliable and accurate quality in powder format
Cost-effective pricing

IF<5，赠送价值 500元礼品卡
5 ≤IF≤10，赠送价值 1000元礼品卡
IF≥10，赠送价值 1000元礼品卡+任意 1 款 ValukineTM 试剂盒


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为感谢各位老师对笃玛品牌的支持与厚爱，凡购买DUMABIO ELISA试剂盒，在SCI期刊杂志发表文中注明ELISA试剂盒采购上海笃玛生物科技有限公司（Shanghai DuMa Biotechnology Co., Ltd.）

Shanghai DuMa Biotechnology Co., Ltd.

发表刊物        影响因子           奖励金额
SCI期刊杂志      1.0≤1F＜3.0          200元
SCI期刊杂志      3.0≤1F＜6.0          400元
SCI期刊杂志      6.0≤1F＜10.0         600元
SCI期刊杂志      1F≥10                1000元