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Merck
CN

70145

麦芽汁琼脂

NutriSelect® Plus, powder, for yeasts, for molds, pack of 100 g, pkg of 500 g, pkg of 2.5 kg, suitable for microbiology

别名:

Malt-based culture medium

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关于此项目

UNSPSC Code:
41171605
NACRES:
NA.74
eCl@ss:
42040102
Manufacturer/tradename:
NutriSelect® Plus
Form:
powder
Suitability:
molds
selective by low pH for Aspergillus spp.
selective by low pH for Candida spp.
selective by low pH for Penicillium spp.
selective by low pH for Pichia spp.
selective by low pH for Saccharomyces spp.
selective by low pH for Zygosaccharomyces spp.
yeasts
Application(s):
agriculture
bioburden testing
clinical testing
environmental
food and beverages
microbiology

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产品名称

麦芽汁琼脂, NutriSelect® Plus, powder, for yeasts, for molds, pack of 100 g, pkg of 500 g, pkg of 2.5 kg, suitable for microbiology

sterility

non-sterile

form

powder

Quality Level

200

shelf life

limited shelf life, expiry date on the label

composition

agar, 15 g/L
malt extract, 30 g/L
mycological peptone, 5 g/L

packaging

pack of 100 g
pkg of 2.5 kg
pkg of 500 g

manufacturer/tradename

NutriSelect® Plus

technique(s)

microbiological culture: suitable

final pH

5.4±0.2 (25 °C)

application(s)

agriculture
bioburden testing
clinical testing
environmental
food and beverages
microbiology

suitability

molds
selective by low pH for Aspergillus spp.
selective by low pH for Candida spp.
selective by low pH for Penicillium spp.
selective by low pH for Pichia spp.
selective by low pH for Saccharomyces spp.
selective by low pH for Zygosaccharomyces spp.
yeasts

相关类别

Application

麦芽提取物琼脂被推荐用于检测、分离和计数各种材料中的真菌、酵母菌和霉菌，特别适合酵母菌和霉菌，还可培养用于微生物维生素测定的试验菌株。

General description

麦芽提取物琼脂由于其丰富性和营养平衡而被认为是一种通用型生长培养基。它用于培养苛养菌。它们具有酸性pH值，用于酵母和霉菌的分离、培养和维护。麦芽提取物含有多糖，可作为能量来源。真菌蛋白胨用作氮源，琼脂是固化剂，可迅速产生生长旺盛，具有典型形态和色素沉着的微生物。可以添加乳酸、酒石酸或抗生素来抑制细菌生长，并使培养基更具选择性。Reiss建议使用改良麦芽提取物琼脂对 黄曲霉进行选择性培养。根据Rapp的说法，向麦芽提取物培养基中添加某些指示染料可区分酵母菌和细菌菌落。

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。
白色念珠菌菌落变异体的生物属性；研究生长在不同基质上的橘灰青霉的挥发性代谢物和其他指标

Preparation Note

将50 g物质悬浮于1升蒸馏水中，加热至沸腾溶解。在115°C下加热10分钟灭菌。为抑制细菌生长，可加入2 ml 10%无菌过滤乳酸，将pH值调节至3.5。

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

ppe

Eyeshields, Gloves, type N95 (US)

法规信息

动植物来源培养基
此项目有

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCN2863
BCCM5720
BCCL9932
BCCK3273
BCCH1946

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S Dutton et al.
Journal of general microbiology, 135(12), 3363-3372 (1989-12-01)
Twenty 'commensal' oral or 'pathogenic' vaginal isolates of Candida albicans were examined for colony morphology on malt/yeast-extract and serum-based agar media. Diverse and variable colony morphology was seen on serum agar. In 17 strains, selective subculture of morphologically atypical colonies
T Börjesson et al.
Applied and environmental microbiology, 56(12), 3705-3710 (1990-12-01)
Penicillium aurantiogriseum Dierckx was cultivated on six agar substrates (barley meal agar, oat meal agar, wheat meal agar, malt extract agar, Czapek agar, and Norkrans agar) and on oat grain for 5 days in cultivation vessels provided with an inlet
Eleftheria Barouni et al.
Food chemistry, 200, 76-82 (2016-02-03)
The object of the current study was to develop a new process for continuous Feta-type cheese production using a biocatalyst consisting of immobilized rennin on a tubular cellulose/starch gel (TC/SG) composite, which has been proven to be an appropriate carrier

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Yeast and Molds in Food and Beverages

Yeast is one of the most important microorganisms known and utilised by mankind. Ancient Middle Eastern civilisations used the organism to bake bread and to produce mead, beer and wine.

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