92435
TBX 琼脂
NutriSelect® Plus, powder, for Escherichia coli, pkg of 100 g, pkg of 500 g
别名:
胰蛋白胨胆汁 X-葡萄糖苷酸琼脂
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关于此项目
NACRES:
NA.85
UNSPSC Code:
41171606
Manufacturer/tradename:
NutriSelect® Plus
Agency:
according to ISO 13136:2012, according to ISO 16649, according to ISO 9308-4:2025
Form:
powder
Suitability:
Escherichia coli, selective and differential for coliforms
Application(s):
agriculture
bioburden testing
environmental
food and beverages
microbiology
water monitoring
bioburden testing
environmental
food and beverages
microbiology
water monitoring
Quality Segment
agency
according to ISO 13136:2012, according to ISO 16649, according to ISO 9308-4:2025
sterility
non-sterile
form
powder
shelf life
limited shelf life, expiry date on the label
composition
agar, 15 g/L , bile salts, 1.5 g/L , X-β-D-glucuronide, 0.075 g/L , peptone, 20 g/L
packaging
pkg of 100 g, pkg of 500 g
manufacturer/tradename
NutriSelect® Plus
final pH
7.2±0.2 (25 °C in H2O)
application(s)
agriculture
bioburden testing
environmental
food and beverages
microbiology
water monitoring
suitability
Escherichia coli, selective and differential for coliforms
General description
TBX Agar (Tryptone Bile X-glucuronide Agar) is a chromogenic medium designed for the selective detection and enumeration of Escherichia coli in foodstuffs, animal feed, and water. E coli cells absorb x-glucuronide and the intracellular glucuronidase splits the bond between the chromophore and the glucuronide. The released chromophore gives blue to blue-green coloration to the colonies. The peptone provides the essential growth nutrients to the organisms. Bile salts mixture inhibits Gram-positive organisms and the high incubation temperature of 44 °C further suppresses non-target organisms.
Application
显色琼脂用于检测和计数食品、动物饮料和水中大肠杆菌的数量。
Features and Benefits
NutriSelect® Plus is a powdered culture media offering
- Quality control with growth promotion test according to industry standards
- Quality assurance acc. to ISO 9001
- Cost-efficient powdered media
Preparation Note
将36.6 g悬浮于1L蒸馏水中。在沸水浴或流动蒸汽中加热，直到介质完全溶解。在121°C下高温灭菌15分钟。在水浴中冷却至45-50°C，轻轻搅拌并取15ml倒入无菌培养皿中。如在+2至+8°C且避光环境下保存，培养皿可在1周内保持稳定状态。
Other Notes
我们现提供两种类型的培养基：GranuCult®优质颗粒状培养基和NutriSelect®高性价比粉末状培养基，满足用户不同层次的需求。
商标后的品级称号basic（基础）、plus（加强）或prime（特级）代表产品的不同质控水平，从基础的质控到标准质控加强版到全面合规的特级质控水平。
商标后的品级称号basic（基础）、plus（加强）或prime（特级）代表产品的不同质控水平，从基础的质控到标准质控加强版到全面合规的特级质控水平。
Legal Information
GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany
存储类别
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)