Description
- Appearance: White/Blue with lens
- • Length of strip: 86mm
- • Width of strip: 5mm
- • Length of device: 140mm
- • Width of device: 15mm
Intended Use
For the isolation and differentiation of sorbitol-negative Escherichia coli serotype O157 from food and animal feed and other materials
Principle and Interpretation
Enzymatic digest of casein and enzymatic digest of animal tissue provides nitrogen source, vitamins and growth factors; sodium chloride maintains balanced osmoticpressure; sorbitol is a fermentable sugar; No. 3 bile salt and crystal violet inhibit Gram-positive bacteria, potassiumtellurite inhibits non-o157 Escherichia coli, and cefixime inhibits Proteus; neutral red is a pH indicator; and agar is the coagulant of the culture medium.
Formulation
Ingredients | /liter |
Enzymatic digest of casein | 17.0g |
Enzymatic digest of animal tissue | 3.0g |
Sorbitol | 10.0g |
Bile salt No.3 | 1.5g |
Sodium chloride | 5.0g |
Neutral red | 0.03g |
Crystal violet | 0.001g |
Agar | 15.0g |
pH 7.1±0.2 at 25°C |
Preparation
Weigh 51.5g of this product, add 1L of distilled water or deionized water, stir, heat and boil until completely dissolved, dispense into Erlenmeyer flasks, and sterilize at 121℃ for 15min. Melt the sterilized culture medium and cool it to about 45℃, add 1 tube of supporting reagent (SR0240) (0.25mg potassium tellurite and 0.005mg Cefixime) to every 100mL of basal culture medium, mix and pour into the plate.
Quality Control
Cultural characteristics observed after incubation at 35-37°C for 18-24hours
Quality control strains | Growth | Colony color |
Escherichia coli ATCC25922 | PR≥0.7 | pale pink to red |
Escherichia coli 0157:H7 NCTC12900 | PR≥0.7 | colorless |
Staphylococcus aureus ATCC 25923 | Total inhibition | – |
Sorage and Shelf Life
Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
Precautions
1. When weighing the dehydrated medium, please wear masks to avoid causing respiratory system discomfort
2. Keep container tightly closed after using to prevent clumping.
Waste Disposal
Microbiological contamination was disposed by autoclaving at 121°C for 30 minutes.
Intended Use For the isolation and differentiation of sorbitol-negative Escherichia coli serotype O157 from food and animal feed and other materials Principle and Interpretation Enzymatic ……
Sample type purification kit guide
The 16S V1-V2 Library Preparation Kit for Illumina consists of the reagents and components required for library preparation of the 16S V1-V2 amplicon libraries to be used for next-generation sequencing on Illumina platforms. All molecular reagents including primers, enzyme mixes, indexes, and buffers are provided. Instructions for PCR clean up with the AMPure XP Magnetic Beads (supplied by customer) are also included for rapid purification of nucleic acid products generated at two steps of the workflow. The library prep workflow could be used for purified DNA inputs from different sources including stool, soil, water, saliva, plant, urine, skin swab, vaginal swab, cheek swab, nasal swab, plasma/serum, tongue swab, gum swab, and others.
The 16S V1-V2 Library Preparation Kit for Illumina has a streamlined procedure that reduces the handling time such that the library prep procedure can be completed in approximately 4 hours (see diagram below). Input DNA is first subjected to targeted PCR to amplify the V1-V2 region of the DNA encoding 16S rRNA. The post-PCR reaction is then cleaned up using AMPure XP beads. Dual index primers are then added using a limited-cycle PCR. The indexed amplicons flanked by 5′ and 3′ barcoded adaptors are then cleaned using AMPure XP beads. The libraries are then ready for quantification, pooling and sequencing.
Figure 1 / 3
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Minimum amount of starting material: | 2.5 µL of DNA (5 ng/µL) |
Time to complete library preparation: | 4 hours |
Storage Conditions and Product Stability
Norgen’s 16S V1-V2 Library Prep Kit for Illumina is shipped as one kit box (for the 24 prep kit) or two sub-component kits (for the 96 prep kit). All kits should be stored at -20°C upon arrival.
All kit components should remain stable for at least 1 year when stored at the specified storage conditions.
Step | Component | Cat. 70100 (24 preps) | Cat. 70110, 70120, 70130, 70140 (96 preps) |
---|---|---|---|
Amplicon PCR (PCR 1) | MGX Master Mix | 330 µL | 1,320 µL |
16S V1-V2 Primer Mix | 70 µL | 280 µL | |
Index PCR (PCR 2) | Indexing Master Mix | 660 µL | 2 x 1,320 µL |
N7xx Index Primer | 50 µL | 50 µL | |
S5xx Index Primer | 70 µL | 70 µL | |
PCR Clean-Up | Resuspension Buffer | 2 x 1,250 µL | 2 x 5,000 µL |
Nuclease-free water | 1,250 µL | 1 x 6,000 µL |
Application:
Bio filler equipment for acne scar, wrinkle removal
PRP/PPP FILLER & PLASMA GEL Filler
Converts Platalet-Rich Plasma into a Bio Gel for Facial &
Corporal Fillings
Operation Principle
Filler maker making fillers after incubating plasmas by using heating system.
Filler can make biofiller in two-step process. It proceeds controlled heating and cooling by bio filler maker.
Parameter setting
Activate incubating and cooling process after setting the timer to 3minutes at 70c, 10minutes at 90c, and 5minutes at cooling system.
Temperature range | 0-90ºC | Max Capacity | 10 Syringe |
Time | 0-99min | Display | Digital Display |
Program | A & B two programs | Record function | available |
Power Supply | 220/110V 50/60Hz | Size: | 29*28*14cm |
Weight | 6.5kgs | Warranty | One year |