70168

脱水纯化牛胆汁

suitable for microbiology, extracted under controlled conditions from purified fresh bile

• 同義詞: Bile acids sodium salt, cholic acid-deoxycholic acid sodium salt mixture
• 分類程式碼代碼: 41106212
• NACRES: NA.85

屬性

• 品質等級: 100
• 無菌: non-sterile
• 形狀: powder
• 雜質: ~5% sodium chloride
• 燃燒殘留物: ≤22% (as SO₄)
• 損耗: ≤8% loss on drying
• pH值: 6.0-9.2 (2% in H₂O)
• 溶解度: distilled water: freely soluble
• 應用: microbiology

描述

一般說明

脱水纯化的新鲜胆汁，在胆汁培养基中用作选择性抑制剂。牛胆汁干粉是通过低温脱水制备而成，可确保产品的均匀性，并解决了供应新鲜胆汁时遇到的问题。8% 至 10% 胆汁干粉溶液相当于新鲜胆汁。1 克干燥的牛胆汁相当于 8 克新鲜胆汁。

應用

Ox bile is used as a selective agent in culture media for selective growth of intestinal bacteria like E. coli, other feacal coliforms, feacal streptococci. But it is also used as a selective agent in media for detection of Yersinia enterocolitica, Aeromonas hydrophila and Vibrio species. Bile salts may be used as one of the selective agents to prevent the growth of injured Escherichia coli cells, in an experiment done to identify the specific agent in the selective media which would inhibit the growth of the injured Escherichia coli ML30 cells. It may also be used for identification of isolates of Vibrio vulnificus (Beneckea) which is a halophilic bacterium, found responsible for causing several human infections.

安全資訊

• 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
• 個人防護裝備: Eyeshields, Gloves, type N95 (US)