This kit provides a rapid spin column method for the isolation and purification of genomic DNA from both Gram-negative and Gram-positive bacteria in milk samples. It can also be used to process challenging milk samples such as Mastitic milk for example. The kit is highly sensitive and can isolate DNA from a cell density of as little as 10 bacteria contained in 1 mL of milk. Genomic DNA is isolated in 45 minutes, free of inhibitors and ready for any number of downstream applications including PCR, qPCR and Southern Blot analysis, sequencing and more.
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| Kit Specifications | |
| Maximum Milk Input | 1 mL |
| Time to Complete 10 Purifications | 1 hour |
| DNA Yield* | 500 ng to 8 μg |
| Bacteria Species Processed | Gram positive and Gram negative |
| Minimum Detection Limit | 10 bacteria in 1 mL of milk |
*The range of the DNA yield will vary depending upon a number of factors including bacterial species and type of milk (fat content and %)
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. The Lysozyme should be stored at -20°C upon arrival, and the Resuspension Solution A should be stored at -20°C after addition of the lysozyme. The lyophilized Proteinase K should be stored at -20°C upon arrival and after reconstitution. This kit is stable for 1 year from the date of shipment.
| Component | Cat. 21550 (50 preps) |
|---|---|
| Resuspension Solution A | 6 mL |
| Buffer SK | 60 mL |
| Wash Solution A | 18 mL |
| Elution Buffer B | 15 mL |
| Proteinase K | 12 mg |
| Lysozyme (powder) | 120 mg |
| Spin Columns | 50 |
| Collection Tubes | 50 |
| Elution Tubes (1.7 mL) | 50 |
| Product Insert | 1 |
Fig 1. Only three steps will be need for Sample Preparation and only 20 minitutes will be taken for Sample Preparation.
Fig 2. Seven concentration samples of 0.3fg/μL, 3fg/μL, 30fg/μL, 300fg/μL, 3pg/μL, 30pg/μL, 300pg/μL were detected. CV of each concentration was < 30%, Regression coefficient associated with standard solutions was 0.99992, and amplification efficiency was 100.370%.
Fig 3. Five concentration samples of 0.1 fg/μL, 0.3 fg/μL, 0.5 fg/μL, 1 fg/μL and 3 fg/μL were detected, and 10 multiple wells were detected for each concentration. The CV of concentrati on values of samples with 0.3 fg/μL and above concentrations were less than 30%.
Fig 4. DNA recovery can be determined by including samples spiked with known DNA amounts which are prepared from the corresponding DNA standards. Typically, the range for this value varies from 70% to 130%.
Fig 5. Only one Reagent for qPCR MIX.
Note: Price not include shipment & duty, contact us to get full quote.
The resDNASEQ CHO Residual DNA Quantitation kit is designed for the quantification of residual DNA from CHO, in cell lines which are used for production of biopharmaceutical products. The Ducky Bio residual DNA CHO Assay, based on proven real-time qPCR technology, makes testing of residual DNA from the Chinese hamster ovary (CHO) cell line rapid, specifc. The PCR-based assay is sensitive and specific for DNA from the CHO cell line and not subject to detection of human or environmental DNA that might be introduced during sample handling. The kit was developed to meet the sensitivity requirements defined by WHO (10 ng CHO DNA per therapeutic dose).
Goat Anti-Rabbit (GAR) Conjugated Colloidal Gold for Lateral Flow (1mL of 10OD)
Product image shows functional testing of Goat Anti Rabbit 40nm colloidal gold on a lateral flow test.
Our products are produced in a state-of-the-art manufacturing facility that enable rapid turnaround times while ensuring batch to batch consistency and reliability.
Goat Anti-Rabbit (GAR) Conjugated Colloidal Gold for Lateral Flow (1mL of 10OD)
Product image shows functional testing of Goat Anti Rabbit 40nm colloidal gold on a lateral flow test.
Our products are produced in a state-of-the-art manufacturing facility that enable rapid turnaround times while ensuring batch to batch consistency and reliability.