跳转至内容
Merck
所有图片(2)

Key Documents

View All Documentation

17222

Millipore

WL 营养琼脂

suitable for microbiology, NutriSelect® Plus,

for cultivation of microorganisms encountered in the brewing and fermentation industries

别名:

Wallerstein 实验室营养琼脂

登录查看公司和协议定价
所有图片(2)

About This Item

分類程式碼代碼:
41171605
NACRES:
NA.74

品質等級

200

無菌

non-sterile

形狀

powder

儲存期限

limited shelf life, expiry date on the label

成份

agar, 20 g/L
bromocresol green, 0.022 g/L
calcium chloride, 0.125 g/L
casein enzymic hydrolysate, 5 g/L
dextrose, 50 g/L
ferric chloride, 0.0025 g/L
magnesium sulfate, 0.125 g/L
manganese sulfate, 0.0025 g/L
monopotassium phosphate, 0.55 g/L
potassium chloride, 0.425 g/L
yeast extract, 4 g/L

製造商／商標名

NutriSelect® Plus

技術

microbiological culture: suitable

最終pH值

5.5±0.2 (25 °C)

應用

bioburden testing
food and beverages
microbiology

適合性

nonselective and differential for Candida spp.
nonselective and differential for Escherichia coli
nonselective and differential for Lactobacillus spp.
nonselective and differential for Pichia spp.
nonselective and differential for Proteus spp.
nonselective and differential for Saccharomyces spp.
nonselective and differential for Zygosaccharomyces spp.
nonselective and differential for bacteria (General Media)
nonselective and differential for coliforms
nonselective and differential for molds (General Media)
nonselective and differential for yeasts (General Media)

相关类别

一般說明

WL（Walerstein Laboratory）培养基遵照Green和Gray的配方配制，可用于检测酿造过程中的材料以及含有酵母和细菌混合菌群的工业发酵物。酵母提取物是维生素、氨基酸和痕量元素的来源。酶水解酪蛋白提供氮、氨基酸和碳。右旋糖是主要的碳和能量来源。磷酸钾是一种缓冲剂。培养基中的多种盐提供必需的离子，并有助于维持渗透平衡。溴甲酚绿作为pH指示剂，而琼脂则作为固化剂。WL营养琼脂是用于检测酿造过程中的材料以及含有酵母和细菌混合菌群的工业发酵物。

應用

WL营养琼脂适用于：
  • 使酵母母种复活并用于发酵后的种群动力学研究
  • 从奶酪中分离的酵母的形态表征
  • 用于平板培养发酵的葡萄酒的酵母菌分离

準備報告

将80.25 g悬浮于1L蒸馏水中。加热至沸腾以完全溶解培养基。在121°C加热15分钟进行高压蒸汽灭菌。如果需要得到6.5的pH值，添加1%碳酸氢钠溶液。

腳註

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。

法律資訊

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

儲存類別代碼

11 - Combustible Solids

水污染物質分類（WGK）

WGK 3

閃點（°F）

Not applicable

閃點（°C）

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)

从最新的版本中选择一种：

分析证书(COA)

Lot/Batch Number
BCCG6200
BCCF7291
BCCC6753
BCCB8222
BCBX3892

没有发现合适的版本？

如果您需要特殊版本，可通过批号或批次号查找具体证书。

搜索COA

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

Paper read at American Society of Brewing Chemists Meeting
Green, SR and Gray, PP
Wallerstein Laboratories Communications, 12, 43-43 (1950)
The impact of Saccharomyces cerevisiae on a wine yeast consortium in natural and inoculated fermentations
Bagheri B, et al.
Frontiers in Microbiology, 8, 1988-1988 (2017)
The rapid detection of brewery spoilage micro-organisms
Harrison J, et al.
Journal of the Institute of Brewing, 80(4), 390-398 (1974)
Selection of autochthonous Saccharomyces cerevisiae strains for production of typical Pinot Gris wines.
Schvarczova E, et al.
Journal of Food & Nutrition Research, 56(4) (2017)
Characterisation of yeast flora isolated from an artisanal Portuguese ewe's cheese
Malfeito-Ferreira M, et al.
International Journal of Food Microbiology (2000)

商品

Culture Method for Beer Quality Control

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

Culture Method for Beer Quality Control

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

Microbiological Media and Detection

Molecular biology-based methods, like PCR, can be used for lactobacilli detection. However, they are often quite expensive. We provide a revolutionary molecular biology method that is rapid, easy, and cost-effective.

Probiotics and Human Health

Today, diverse studies report the benefits of probiotics, such as inhibitory effects on pathogens, aid in the management or prevention of chronic intestinal inflammatory diseases or atopic syndromes, and support to the immune system. Potential beneficial applications abound, researchers continue to evaluate the effictiveness and clarify the mechanisms of action of probiotics.

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门