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Half Fraser Broth in Bags

品牌
Millipore
货号
0120216
规格纯度
For enrichment of samples for Listeria sp. and Listeria monocytogenes in accordance with ISO 11290, suitable for microbiology
参考价格
810.52 *本价格含增值税费
促销
服务
  • 原厂保证
  • 包邮
  • 增值税票
数量
-+
产品名称:
Half Fraser Broth in Bags
Fraser broth primary enrichment
产品介绍:

产品说明

一般描述

Half Fraser broth is a selective enrichment medium designed to help the recovery of Listeria sp. This medium contains peptone, casein, yeast extract, and meat extract, which provide essential nutrients like carbon and nitrogenous compounds, including vitamins, amino acids, and trace ingredients. Phosphates buffer the medium while sodium chloride maintains osmotic equilibrium. Nalidixic acid and acriflavine inhibit the growth of Gram-negative and Gram-positive organisms respectively, except Listeria sp. Listeria sp. hydrolyze esculin to glucose and esculetin. The latter combines with ferric ions of ferric ammonium citrate, resulting in the formation of 6-7-Dihydroxycoumarin, a black-brown complex. Ferric ammonium citrate also enhances the growth of L. monocytogenes. The high salt tolerance (of sodium chloride) of Listeria is used as means to inhibit the growth of Enterococci. Lithium chloride is also used to inhibit Enterococci, which also possess the ability to hydrolyze esculin.

应用

Half Fraser broth is used for the selective pre-enrichment and detection of Listeria sp. in food and environmental specimens.

产品性质

质量水平200
agencyISO 11290
according to ISO 11290
无菌性sterile
形式liquid
保质期limited shelf life, expiry date on the label
特点ready-to-use
组成acriflavin hydrochloride, 0.0125 g/L
ammonium ferric citrate, 0.5 g/L
casein peptone, 5 g/L
di-sodium phosphate dihydrate, 12.0 g/L
esculin, 1.0 g/L
lithium chloride, 3.0 g/L
meat extract, 5 g/L
meat peptone, 5 g/L
nalidixic acid, 0.010 g/L
potassium dihydrogen phosphate, 1.35 g/L
sodium chloride, 20 g/L
yeast extract, 5 g/L
technique(s)microbiological culture: suitable
最终pH7.2±0.2 (25 ℃)
application(s)agriculture
environmental
food and beverages
industrial qc
pathogen testing
sample preparation
microbiology
适用性Listeria spp.

安全信息

储存分类代码12 - Non Combustible Liquids
WGKWGK 2
闪点(F)Not applicable
闪点(C)Not applicable

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