1.46476

ReadyTube^® Half Fraser Broth

For enrichment of samples for Listeria sp. and Listeria monocytogenes in accordance to ISO 11190, pkg of (225 mL in 250 mL bottle with blue screw cap and 3 loci (6 bottles per box))

• 别名: Fraser Broth
• 分類程式碼代碼: 41106212
• NACRES: NA.74

属性

• agency: ISO 11190
• 品質等級: 300
• 形狀: liquid (ready-to-use)
• 特點: ready-to-use
• 製造商／商標名: ReadyTube^®
• 包裝: pkg of (225 mL in 250 mL bottle with blue screw cap and 3 loci (6 bottles per box))
• pH值: 7.2 ( in H₂O)
• 應用: environmental; food and beverages; microbiology
• 儲存溫度: 2-8°C
• 適合性: selective for Listeria spp.

说明

一般說明

ReadyTube^® is ready to use media to provide the highest level of quality and testing confidence for improving accuracy and significantly reducing the risk of false results. ReadyTube^® Half Fraser broth is a selective enrichment medium designed to help recovery of Listeria sp.

應用

ReadyTube^® Fraser broth is used for the primary and secondary selective enrichment of Listeria sp. from food and animal feed as well as from environmental samples and other materials.

分析報告

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.

法律資訊

READYTUBE is a registered trademark of Merck KGaA, Darmstadt, Germany

安全信息

• 儲存類別代碼: 12 - Non Combustible Liquids
• 水污染物質分類（WGK）: WGK 2
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable