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脱脂奶粉,Skim milk powder;suitable for microbiology

别名:1153630500;脱脂乳固形物;Skim milk powder, Dry skim milk, non-fat milk solids, skimmed milk powder

CAS号: 999999-99-4 EC索引号: 310-127-6
货号(SKU): 1.15363
CAS号: 999999-99-4
增值税发票 √ 技术支持 √ 质量保障 √ 全程可追溯 √
¥576.00

说明

一般描述

Skim milk powder is widely used in microbiology as a nutrient source in microbial culture media. It provides a complex mixture of nutrients, including protein, lactose, and minerals, that support the growth of a variety of microorganisms. Skim milk powder is commonly used in media formulations for the cultivation of lactic acid bacteria, including Streptococcus and Lactobacillus species. It can also be used as a supplement in media for the growth of other microbial cells, including fungi, yeasts, and some bacteria that utilize milk proteins as a nutrient source. Additionally, skim milk powder has the advantage of being shelf-stable and easily rehydratable, making it a convenient and cost-effective source of nutrients for microbial cultivation.
 

应用

Skim milk powder is usually used as an ingredient in many microbial culture media for the growth and identification of bacteria, yeasts, and molds from various pharmaceutical, environmental, food and beverage samples. Furthermore, it is described in the EN ISO 6887-4:2017 to be used as pre-enrichment broth for the detection of Salmonella spp. and STEC when testing cocoa and cocoa containing products (use 100 g/l; sterilize after reconstitution). As an ingredient in culture media Skim milk powder is usually employed in concentrations of 0.1 to 1.0%.
 

联系

Replaces: 1.15363.9017
 

分析说明

Assay protein (ex N, calc. on dried substance): ≥ 35 %
Lactose (enzymatically): 40 - 52 %
pH-value (1 %; water): 6 - 7
Fats: ≤ 1.5 %
Free acid (as lactic acid): ≤ 2 %
Ash (800 °C): ≤ 10 %
Water (according to Karl Fischer): ≤ 5.0 %
Suitability for microbiology: passes test
Microbiological test: passes test
Identity (NIR): passes test
 

其他说明

Rehydrating the Skim milk powder, or using it for the preparation of culture media, the milk powder should be gently added to water with proper stirring to make sure that no clumps are present in the rehydrated skim milk or the prepared media
 
 

属性

生物来源

bovine milk

质量水平

形式

solid

保质期

limited shelf life, expiry date on the label

pH值(酸碱度)

6-8 (20 °C, 20 g/L in H2O)

溶解性

700 g/L

堆积密度

500 kg/m3

application(s)

microbiology
pathogen testing

储存温度

15-25°C

 

安全信息

储存分类代码

11 - Combustible Solids

WGK

WGK 1

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 50 | 欧洲Eur. ≥ 12 | 東京Tokyo ≥ 20 | 香港与北京 ≥ 50