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agency
ISO 6579
suitable for ISO
品質等級
形狀
powder
技術
microbiological culture: suitable
pH值
7.3±0.2 (25 °C)
應用
food and beverages
儲存溫度
15-25°C
適合性
selective for enterobacteriaceae: Salmonella spp.
一般說明
Chromocult® RAMBACH™ Agar is specifically designed for the differentiation of Salmonella species. The agar is chromogenic, providing two chromogenic substrates – propylene glycol and X-Gal ((5-bromo-4-chloro-3-indoyl- β-D-galactopyranoside).
Certain Salmonella species act on the propylene glycol producing acid which causes the pH indicator in the media to change color, and pinkish-red or crimson colonies appear. Additionally, other members of the family Enterobacteriaceae which are positive for the enzyme β-D-galactosidase cleave the substrate X-Gal and this results in the production of blue-green colonies.
Salmonella species that are positive for the β-D-galactosidase enzyme and can produce acid from propylene glycol appear as purple-violet colonies, while species that are capable of neither appear as yellow or colorless colonies.
Certain Salmonella species act on the propylene glycol producing acid which causes the pH indicator in the media to change color, and pinkish-red or crimson colonies appear. Additionally, other members of the family Enterobacteriaceae which are positive for the enzyme β-D-galactosidase cleave the substrate X-Gal and this results in the production of blue-green colonies.
Salmonella species that are positive for the β-D-galactosidase enzyme and can produce acid from propylene glycol appear as purple-violet colonies, while species that are capable of neither appear as yellow or colorless colonies.
應用
The Chromocult® RAMBACH™ Agar can be used for: -
- The detection of Salmonella in foodstuff, water, animal feed
- The differential diagnosis of Salmonella species in various samples
分析報告
- The dehydrated medium appears as dark-green color.
- The prepared medium is opaque and light pink in appearance.
- The pH value at 25 degrees is in the range of 7.1-7.5.
法律資訊
CHROMOCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
Rambach is a trademark of Balel S.A.
儲存類別代碼
10 - Combustible liquids
水污染物質分類(WGK)
WGK 3
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