赖氨酸培养基

NA.85

用于接种用酵母中野生酵母的分离和计数。

成分 (g/L)
右旋糖，44.50
磷酸二氢钾，1.78
硫酸镁，0.89
氯化钙，0.178
氯化钠，0.089
腺嘌呤，0.00178
DL-甲硫氨酸，0.000891
L-组氨酸 0.000891
DL-色氨酸，0.000891
硼酸，0.0000089
硫酸锌，0.0000356
钼酸铵，0.0000178
硫酸锰，0.0000356
硫酸亚铁，0.0002225
L-赖氨酸，1.00
肌醇，0.02
泛酸钙，0.002
硫胺素，0.0004
吡哆醇，0.0004
对氨基苯甲酸，0.0002
烟酸，0.0004
核黄素，0.0002
生物素，0.000002
叶酸，0.000001
琼脂，17.80

Suspend 6.6 g of Lysine Medium in 100 ml of distilled water containing 0.84 ml of potassium lactate solution ~60% (Cat. No. 60389). Boil to dissolve the medium completely. Cool to 50 ℃. Adjust the pH to 5.0 with a 10% solution of Lactic Acid (Cat. No. 69778) and pour into sterile petri plates.NoteThe degree of contamination is expressed as the number of wild yeast cells per million cells of the original inoculum. The number of cells in the inoculum is important as a small number (100-1000) grow to a limited extent while 10′000 brewing yeast cells provide a direct measure of contaminant wild yeasts.

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

200

non-sterile

powder

limited shelf life, expiry date on the label

NutriSelect^® Plus

microbe id | utilization test: suitable
microbiological culture: suitable

5.0±0.2 (25 ℃)

food and beverages
microbiology

nonselective for Candida spp.
nonselective for Pichia spp.
nonselective for Saccharomyces spp.
nonselective for Zygosaccharomyces spp.

11 - Combustible Solids

WGK 2

Eyeshields, Gloves, type N95 (US)