64198
啤酒细菌培养基
NutriSelect® Plus, powder, selective for Lactobacillus spp., for Pediococcus spp., pack of 500 g, suitable for microbiology
别名:
Detection Agar for bacterial beer spoiler, Pedi-Lacto Selective Beer Agar
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关于此项目
NACRES:
NA.85
UNSPSC Code:
41171609
Manufacturer/tradename:
NutriSelect® Plus
Form:
powder
Suitability:
Leuconostoc spp., Pediococcus spp., selective for Lactobacillus spp., selective for Lactococcus spp.
Application(s):
bioburden testing
food and beverages, microbiology
food and beverages, microbiology
sterility
non-sterile
Quality Segment
form
powder
shelf life
limited shelf life, expiry date on the label
composition
bacteriological Agar, 15 g/L , beef extract, 2 g/L , chlorophenol red, 0.07 g/L ,
packaging
pack of 500 g
manufacturer/tradename
NutriSelect® Plus
technique(s)
microbiological culture: suitable
color
gray-brown
final pH
5.8±0.2 (25 °C)
application(s)
bioburden testing
food and beverages, microbiology
suitability
Leuconostoc spp., Pediococcus spp., selective for Lactobacillus spp., selective for Lactococcus spp.
General description
Nocive Brewers Bacteria Agar is a selective medium designed for thedetection of beer-spoiling microorganisms. Originally developed in Germany byBack and Dachs, the medium was later modified byNishikawa and Kohgo to reduce its inhibitory effects on beer-spoilingorganisms. Pancreatic digest of casein, yeast extract, and beef extract providesessential nitrogenous compounds, vitamins, and nutrients required for thegrowth of spoilage bacteria. Dextrose and maltose serve as fermentable sugars,while chlorophenol red acts as an indicator for acid production. Polysorbate 80neutralizes phenols, hexachlorophene, and formalin, and potassium acetatereplaces sodium acetate to make the medium less inhibitory. L-cysteinehydrochloride functions as a reducing agent, and L-malic acid supports thegrowth of lactic acid bacteria as a beneficial metabolite. Disodium phosphateserves as a buffering agent, while the low pH optimizes the growth of lacticacid bacteria and simultaneously inhibits other organisms. Agar is used as thesolidifying agent.
Application
用于检测酿酒厂的污染/腐败微生物的选择性培养基。
Features and Benefits
Features:
- High-Quality Standards: NutriSelect® Plus powdered culture media are made from carefully selected raw materials, ensuring consistent quality.
- Wide Range of Applications: Suitable for various microbiological needs, including academic research, food and beverage testing, and pharmaceutical applications.
- Regulatory Compliance: Products meet industry standards and are compliant with ISO 9001 quality assurance.
- Innovative Formulations: Includes novel media types such as non-animal-derived alternatives, synthetically defined media, and chromogenic media.
- Convenience and Safety: Easy-to-use powdered format with minimal clumping and excellent solubility, even in warm or humid conditions.
- Sustainability: Reduced risks associated with fine dust and toxic substance inhalation, ensuring a safer work environment. ·
- Extended Shelf Life: Products have a prolonged shelf life of up to five years.
- High Reproducibility: Ensures consistent results across batches, exceeding regulatory demands.
- Comprehensive Portfolio: A vast selection of over 350 products tailored to meet diverse microbiological testing needs.
Preparation Note
将66,3g培养基溶于500mL蒸馏水和500mL不含气体的啤酒中。充分混合。加热1分钟，同时不断搅拌以完全溶解所有成分。121°C下高压蒸汽灭菌15分钟。冷却至 50°C后倒入培养皿。
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
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable