烟酸测定培养基

NA.85

建议用于烟酸或烟酰胺的微生物学测定。

成分 (g/L)
酸水解酪蛋白(不含维生素)，12.00
右旋糖，40.00
醋酸钠，20.00
L-半胱氨酸，0.40
DL-色氨酸，0.20
硫酸腺嘌呤，0.02
盐酸鸟嘌呤，0.02
尿嘧啶，0.02
盐酸硫胺，0.0002
泛酸钙，0.0002
盐酸吡多辛，0.0004
核黄素，0.0004
对氨基苯甲酸，0.0002
生物素，0.00008
磷酸氢二钾，1.00
磷酸二氢钾，1.00
硫酸镁，0.40
氯化钠，0.02
硫酸亚铁，0.02
硫酸锰，0.02

Suspend 7.51 g of Niacin Assay Medium in 100 ml of distilled water. Boil to dissolve the medium completely. Mix well to distribute the slight precipitate evenly. For the assay, dispense 5 ml of medium per assay tube (containing increasing amounts of standard or unknown) and make up the total volume to 10 ml per tube with distilled water. Sterilize by autoclaving at 15 lbs. pressure (121℃) for 10 minutes. Cool immediately.

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.

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

powder

200

limited shelf life, expiry date on the label

NutriSelect^® Plus

microbiological culture: suitable

6.8±0.2 (25 ℃)

food and beverages
pharmaceutical
microbiology

2-8℃

nonselective for Lactobacillus spp.

11 - Combustible Solids

WGK 1

Eyeshields, Gloves, type N95 (US)