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.
The HiPure Mini system provides a fast, simple, and cost-effective plasmid DNA miniprep method for routine molecular biology laboratory applications. HiPure Plasmid Mini Kits use silica membrane technology to eliminate the cumbersome steps associated with loose resins or slurries. Plasmid DNA purified with Mini Kits is immediately ready for use. Phenol extraction and ethanol precipitation are not required, and high quality plasmid DNA is eluted in a small volume of tris buffer or water.
Compared to other domestic products, Magen was the first to solve the stability problem of the column. Many other brands have unstable extraction concentrations, and the longer the time, the more unstable the column becomes. However, in our test of Magen kit, the quality and yield of plasmid extraction still remain stable after 5 years’ storage. For different customers, our kits can be customized. For example, Classic type is suitable for customers with low copy or unclear plasmid types. The rapid type is suitable for customers with high copy plasmids. Compared to many other brands, the plasmid DNA extracted by Magen has a longer preservation time and more thoroughly RNA removal.
Details
Specifications
Features
Specifications
Main Functions
Isolation up to 35μg plasmid DNA from 1-5ml bacterial culture
Applications
Enzyme digestion, sequencing, PCR, cloning, etc.
Purification method
Mini spin column
Purification technology
Silica technology
Process method
Manual (centrifugation or vacuum)
Sample type
Conventional plasmid, plasmid less than 30KB
Sample amount
High copy plasmid: 1-5ml culture mediumLow copy number plasmid : 5-10ml culture medium
Yield
5-35µg
Elution volume
≥30μl
Time per run
Complete 1-24 samples in 30 minutes
Liquid carrying volume per column
800µl
Binding yield of column
35µg
Principle
The HiPure Plasmid procedure is based on alkaline lysis of bacterial cells followed by adsorption of DNA onto silica in the presence of high salt. The unique silica membrane used in the kit completely replaces glass or silica slurries for plasmid DNA minipreps. The procedure consists of 3 basic steps: Preparation and clearing of a bacterial lysate by alkaline method，then transfer the supernatant to column to bind DNA. After washing proteins and other impurities, nucleic acid was finally eluted with low-salt buffer (10mm Tris, pH9.0, 0.5mm EDTA).
Advantages
High purity – purified plasmid can be directly used in sequencing, enzyme digestion and PCR, etc.
Fast – it takes only 1 minute to obtain supernatant by optimized solution (10 minutes for other brands)
High yield – up to 35µg plasmid can be binded in one column
Kit Contents
Contents
P100102
P100103
Purification Times
100 Preps
250 Preps
RNase A
5 mg
10 mg
Buffer P1
30 ml
80 ml
Buffer P2
30 ml
80 ml
Buffer P3
40 ml
100 ml
Buffer PW1
60 ml
140 ml
Buffer PW2*
20 ml
50 ml
Elution Buffer
15 ml
30 ml
HiPure DNA Mini Columns II
100
250
2 ml Collection Tubes
100
250
Storage and Stability
The kit components can be stored dry at room temperature (15-25°C) and are stable for at least 18 months under these conditions. If any precipitates form in the buffers, warm at 37℃ to dissolve. After addition of RNase A，Buffer P1 is stable for 6 months when stored at 2-8°C.
The HiPure Mini system provides a fast, simple, and cost-effective plasmid DNA miniprep method for routine molecular biology laboratory applications. HiPure Plasmid Mini Kits use silica membrane technology to eliminate the cumbersome steps associated with loose resins or slurries. Plasmid DNA purified with Mini Kits is immediately ready for use. Phenol extraction and ethanol precipitation are not required, and high quality plasmid DNA is eluted in a small volume of tris buffer or water.
Methyltetrazine-PEG4-DBCO is a PEG linker with a terminal TCO reactive reagent and a DBCO group. DBCO is commonly used for copper-free Click Chemistry reactions. Methyltetrazine can be used to convert azido-containing peptides or proteins into tetrazine-modified peptides or protein without catalyst or axillary reagents. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Document
Methyltetrazine-PEG4-DBCO is a PEG linker with a terminal TCO reactive reagent and a DBCO group. DBCO is commonly used for copper-free Click Chemistry reactions. Methyltetrazine can be used to convert azido-containing peptides or proteins into tetrazine-modified peptides or protein without catalyst or axillary reagents. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
