1.46751

Readyplate XLD Agar acc ISO 6579

For isolation and differentiation of Salmonella, box of 20 plates, plate diam. 90 mm

• 同義詞: Xylose Lysine Deoxycholate Agar
• 分類程式碼代碼: 41106217
• NACRES: NA.74

屬性

• agency: APHA; ISO 19250; ISO 6579
• 品質等級: 300
• 形狀: solid
• 特點: ready-to-use
• 包裝: box of 20 plates
• 製造商／商標名: ReadyPlate^™
• 儲存條件: (Store dry and tightly closed)
• 板直徑: 90 mm
• 顏色: red
• 應用: food and beverages; industrial qc; microbiology
• 儲存溫度: 15-25°C
• 適合性: Salmonella spp.

描述

一般說明

XLD agar is a selective agar that enables the identification of Salmonella species over other bacteria. This medium relies on three indicator systems:

1. Degradation of xylose, lactose, and sucrose to acid causes phenol red to change its color to yellow.
2. Production of hydrogen sulfide is indicated by thiosulfate and iron (III) salt, which react to form a precipitate of black iron sulfide in the colonies.
3. The appearance of a purple coloration around the colonies due to an increase in pH indicates bacteria that decarboxylate lysine to cadaverine.

These reactions can proceed simultaneously or successively and may cause the pH indicator to exhibit various shades of color, or it may change its color from yellow to red on prolonged incubation. The culture medium is moderately selective thus, the growth of unwanted organisms is suppressed, while sought bacteria can be tentatively grouped by reading the net effect of carbohydrate dissimilation, lysine decarboxylation, and the formation of hydrogen sulfide leading to black colonies. Agar is the solidifying agent.

應用

ReadyPlate^™ XLD Agar plates are suitable for isolation and differentiation of Salmonella from food and animal feed, water, and other materials.

法律資訊

READYPLATE is a trademark of Merck KGaA, Darmstadt, Germany

安全資訊

• 儲存類別代碼: 13 - Non Combustible Solids
• 水污染物質分類（WGK）: WGK 2
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable