HCM050 Potato Dextrose Agar

DBCO-Maleimide is a sulfhydryl reactive reagent containing a maleimide group and a DBCO moiety. Maleimide group specifically and efficiently reacts with thiols to form thioether bonds. The low mass weight will add minimal spacer to modified molecules and will enable simple and efficient incorporation of DBCO moiety into cysteine-containing peptides or other thiol-containing biomolecules. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DBCO-Maleimide is a sulfhydryl reactive reagent containing a maleimide group and a DBCO moiety. Maleimide group specifically and efficiently reacts with thiols to form thioether bonds. The low mass weight will add minimal spacer to modified molecules and will enable simple and efficient incorporation of DBCO moiety into cysteine-containing peptides or other thiol-containing biomolecules. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Introduction

Usages:
Peptone obtained by enzymatic digestion of selected animal tissues, widely used in the preparation of microbiological culture media.

Technical specification:
Total nitrogen(TN)—————————≥14.5%
Amino nitrogen(AN) ————————≥2.0%
Moisture—————————————≤5.0%
Ash———————————————≤5.0%
Clˉ——————————————–≤3.0%
PH(2% solution)——————————5-7

Storage: Keep container tightly closed, store in a cool, dry place, away from bright light.

Specifications: 500g/bottle; 10kg /bag

500g/bottle; 10kg /bag

Introduction

Usages:
For isolating lactose-fermenting Gram-negative enteric bacilli.

Principle:
Peptones are sources of nitrogen and other nutrients. Lactose is a fermentable carbohydrate. When lactose is fermented, alocal pH drop around the colony causes a color change in the pH indicator (neutral red) and bile precipitation. Bile salts,bile salts no. 3, oxgall and crystal violet are selective agents that inhibit growth of gram-positive organisms. Agar is the solidifying agent.

Formulation（per liter）:

How to use：
1.Suspend 50 g in 1 L of distilled or deionized water. Heat to boiling to dissolve completely. Autoclave at 121°C for 15 minutes.

2.Transfer 1 mL of Soybean–Casein Digest Broth to 100 mL of MacConkey Broth, and incubate at 42 to 44 for 24 to 48 hours. Subculture on a plate of MacConkey Agar at 30 to 35 deg.C for 18 to 72 hours.

Quality control：
          　　

Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of three years.

Specifications: 250g/bottle

250g