Introduction

Usages:
For isolation and enumeration of coagulase-positive staphylococci in foodstuffs.

Principle:
Tryptone, beef extract powder and yeast extract powder provides carbon and nitrogen sources, vitamins and growth factors; sodium pyruvate and glycine to stimulate the growth of Staphylococcus aureus; lithium chloride and potassium tellurite inhibit the non-staphylococcal microorganisms; containing lecithinase staphylococcal colonies produce degradation yolk make transparent circle, while the role of the lipase produced an opaque precipitate ring; coagulase-positive staphylococci can restore potassium tellurite and produce black colonies; agar is medium coagulant.

Formulation（per liter）:
Pancreatic Digest of Casein 10g
Beef Extract 5g
Yeast Extract 1g
Sodium Pyruvate 10g
Glycine 12g
Lithium Chloride 5g
Agar 20g
Final pH7.0 ± 0.2

How to use：
1.Suspend 63g in 950ML of distilled water , stirring heated to boiling ,autoclave at 121℃ for 15 minutes.
2.Diluted and treated samples.

Quality control：
          　　

Item	The name and number of strain	Growth	Colony Color
1	Staphylococcus aureus ATCC6538	Good	black
2	Staphylococcus epidermidis CMCC (B) 26069	Good	Green-blue
3	Escherichia coli ATCC25922	Not growth	—

Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.

Specifications: 250g/bottle
*Supplement: 029190 Egg Yolk Tellurite Emulsion

250g

Introduction

This product is designed for purification of high-molecular-weight genomic or mitochondrial DNA from a variety of tissue and culture cells. The convenient, scalable purification procedure removes contaminants and enzyme inhibitors such as proteins and divalent cation, and purified DNA is ready for immediate use in sensitive downstream applications or for archiving.

Details

Specifications

Features	Specifications
Main Functions	Isolation total DNA from tissue using economic salt out method
Applications	PCR, enzyme digestion, Southern hybridization,etc.
Purification technology	Salting out method
Process method	Manual (centrifugation or vacuum)
Sample type	Animal tissue
Sample amount	Unlimited
Elution volume	≥100μl
Time per run	Variation with sample amount

Principles

Cells are lysed with ananionic detergent in the presence of a DNA stabilizer. The DNA stabilizer limits the activity of intracellular DNases and also DNases found elsewhere in the environment. RNA is then removed by treatment with an RNA digesting enzyme. Other contaminants, such as proteins, are removed by salt precipitation. Finally, the genomic DNA is recovered by precipitation with alcohol and dissolved in Buffer TE. Purified DNA typically has an A260/A280 ratio between 1.7 and 1.9, and is up to 200 kb in size. The DNA can be safely stored at 2-8°C, -20°C, or -80°C.

Advantages

• Safe – without phenol chloroform extraction
• Environment friendly – the reagents used are safe, non-toxic and without pollution
• High molecular weight – the molecular weight of genomic DNA is about 50-150kb
• High purity – the purified DNA has A260/280=1.8-1.9, A260/230=2.0-2.5
• Unlimited sample size – solution type operation, sample volume can be adjusted at will
• Cost performance – the most economical nucleic acid extraction technology

Kit Contents

Contents	D331201	D331202	D331203
Purification Times	1 g	5 g	50 g
Proteinase K	330 µl	1.8 ml	18 ml
Buffer WTL	33 ml	160 ml	2 x 800 ml
Buffer PPS	12 ml	55 ml	500 ml
RNase Solution	330 µl	1.8 ml	18 ml
Buffer TE	12 ml	60 ml	200 ml

Storage and Stability

RNase Solution should be stored at 2-8°C upon arrival. However, short-term storage (up to 24 weeks) at room temperature (15-25°C) does not affect their performance. The remaining kit components can be stored dry at room temperature (15-25°C) and are stable for at least 18 months under these conditions. The entire kit can be stored at 2-8°C, but in this case buffers should be redissolved before use. Make sure that all buffers are at room temperature when used.

This product is designed for purification of high-molecular-weight genomic or mitochondrial DNA from a variety of tissue and culture cells. The convenient, scalable purification procedure removes contaminants and enzyme inhibitors such as proteins and divalent cation, and purified DNA is ready for immediate use in sensitive downstream applications or for archiving.

t-Boc-N-Amido-PEG3-propargyl enables formation of triazole linkage with azide-bearing compound via copper catalyzed Click Chemistry. Under mild acidic conditions, t-Boc group can be removed to yield the free amine. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

t-Boc-N-Amido-PEG3-propargyl enables formation of triazole linkage with azide-bearing compound via copper catalyzed Click Chemistry. Under mild acidic conditions, t-Boc group can be removed to yield the free amine. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.