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
bioburden testing
clinical testing
environmental
food and beverages, microbiology
sterility
non-sterile
Quality Segment
form
powder
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
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。
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。
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。
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
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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)