For general bacterial culture, in particular for molecular biology experiments preservation and enrichment of E. coli.
Principle:
Peptone, yeast extract powder provide nitrogen, vitamins and growth factors; sodium chloride to maintain osmotic equilibrium; glucose as carbon source.
Formulation(per liter):
Peptone 10g
Sodium chloride 10g
Yeast extract powder 5g
Final pH7.0 ± 0.2
How to use:
1.Suspend 25g in 1 L of distilled water , stirring heated to boiling until completely dissolved, dispensing flask, autoclave at 121 for 15 minutes.
2.Diluted and treated samples.
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
DDL6 Refrigerated centrifuge widely used in the field of blood bank station, pharmaceutical factory and laboratory, can hold 500ml triple, 400ml triple and 250ml triple blood bags.
DDL6 Blood Bags Refrigerated Centrifuge Features:
1. Brushless frequency motor which in great torque, free maintenance, no powder pollution, quick in speed up and down.
2. Digital display which indicates the program, speed, time, RCF and temperature.
3. Micro computer control, there are 10 kinds of program and 10 kinds of acceleration/deceleration for your choice.
4. There are 6 kinds of rotors for your choice.
5. Electric lid lock, compact design, super speed and imbalance protection.
6. The centrifuge body is made of high-quality steel, safe and reliable.
Staphylococcus aureus Quantified Bacterial DNA Standard
Product Info
Document
Product Info
Overview
Quantified standard to be used as a positive control or PCR quantification standard
Vigorously quantified using multiple methods
Mastitis is the single most costly disease of dairy cattle resulting in the reduction of milk yield and quality. The inflammation of the utter is mainly caused by bacteria, and Staphylococcus aureus (S. aureus) is often considered the most common cause of contagious mastitis in dairy herds. S. aureus infection is estimated to be present in up to 90% of dairy farms and is responsible for 35% of the economic loss in the dairy industry. S. aureus is a facultatively anaerobic, Gram positive bacterium. The majority of S. aureus strains are catalase-positive and coagulase-positive, which forms the basis of traditional identification methodology.
Staphylococcus aureus Quantified Bacterial DNA Standard is prepared from cultured bacteria using Norgen’s sample preparation technology. The purified DNA is quantified vigorously using multiple methods including spectrophotometry, gel densitometry and real-time PCR. It is intended to be used as a positive control or PCR quantification standard for Staphylococcus aureus.
Upon receipt, store Norgen’s Staphylococcus aureus Quantified Bacterial DNA Standard at -20oC or lower. Avoid multiple freeze-thaw cycles. If needed, prepare smaller working aliquots and store at -20oC or lower.
