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Merck
CN

17226

通用啤酒琼脂

NutriSelect® Plus, powder, selective for Lactobacillus spp., pack of 500 g, suitable for microbiology

别名:

UB 琼脂

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NACRES:
NA.74
UNSPSC Code:
41171605
Manufacturer/tradename:
NutriSelect® Plus
Form:
powder
Suitability:
Acinetobacter spp., Pediococcus spp., selective for Candida spp., selective for Escherichia coli, selective for Lactobacillus spp., selective for Pichia spp., selective for Proteus spp., selective for Saccharomyces spp., selective for Zygosaccharomyces spp., selective for coliforms
Application(s):
bioburden testing
food and beverages, microbiology
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sterility

non-sterile

form

powder

Quality Level

shelf life

limited shelf life, expiry date on the label

composition

agar, 12 g/L , dextrose, 16.1 g/L , dipotassium phosphate, 0.31 g/L , ferrous sulfate, 0.006 g/L , magnesiumsulfate, 0.12 g/L , manganese sulfate, 0.006 g/L , monopotassium phosphate, 0.31 g/L , peptonized milk, 15 g/L , sodium chloride, 0.006 g/L , tomato juice, 12.2 g/L , yeast extract, 6.1 g/L

packaging

pack of 500 g

manufacturer/tradename

NutriSelect® Plus

technique(s)

microbiological culture: suitable

final pH

6.3±0.2 (25 °C)

application(s)

bioburden testing
food and beverages, microbiology

suitability

Acinetobacter spp., Pediococcus spp., selective for Candida spp., selective for Escherichia coli, selective for Lactobacillus spp., selective for Pichia spp., selective for Proteus spp., selective for Saccharomyces spp., selective for Zygosaccharomyces spp., selective for coliforms

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General description

Universal Beer Agar is a base medium supplemented with beer. Its characteristics are closer to natural environmental conditions found in a typical brewery. Thus, it supports the growth of more lactic acid bacteria and yields larger colonies in a shorter time than other brewer’s media. The addition of beer gives the medium some selectivity to the organisms adapted to existing conditions in the brewery. Hop and alcohol inhibit the growth of many other microorganisms, which are not adapted to the beer matrix.

Application

Universal Beer Agar is suitable for culturing spoilage microorganisms of significance in the brewing industry (bacteria like Lactobacillus, Pediococcus, Acetobacter, and yeasts).

Preparation Note

Suspend 62.16 g in 750 ml of distilled water. Heat to boiling to dissolve the medium completely. Add 250 ml beer, without degassing, to the hot medium and mix gently. Dispense as desired and sterilize by autoclaving at 121°C for 10 minutes. If required, add 1 ug/ml (Cat. No. 01810) of Cycloheximide to sterile medium prior to dispensing.

Other Notes

We offer two media types: the superior granulated GranuCult® and the cost-efficient powdered NutriSelect® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.

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

法规信息

动植物来源培养基
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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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商品

Traditional methods are based morphology, staining methods, enzyme reactions (metabolism) and diverse media.

Probiotics exhibit an inhibitory effect on pathogens, help prevent chronic intestinal inflammatory diseases or atopic syndromes, and support the immune system.

Cost-effective molecular biology method for lactobacilli detection is presented as an alternative to PCR-based methods.

实验方案

Yeast culture techniques: Model systems for eukaryotic studies with liquid media or agar plate growth.

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