Listeria monocytogenes has emerged as a significant foodborne pathogen that poses a serious public health problem. As the causative agent of Listeriosis, L. monocytogenes has the highest rate of fatality among all foodborne pathogens. L. monocytogenes is a facultatively intracellular, Gram-positive bacterium. Due to its ability to survive high and low temperatures as well as low pH, it could resist various food processing technologies, as well as grow at food storage temperatures. L. monocytogenes is known to be associated with raw meat, unpasteurized milk and dairy products, vegetables, and seafood. As little as 1000 organisms may cause the disease with pregnant, new-born, and immunocompromised individuals being the most susceptible.
Norgen’s Listeria monocytogenes 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 Listeria monocytogenes.
Figure 1 / 1
Click for expanded view
| Volume Provided | 250 μL |
| DNA Quantity | 2 x 104 copies per μL |
Storage Conditions
Upon receipt, store Norgen’s Listeria monocytogenes Quantified Bacterial DNA Standard at -20oC or lower. Avoid multiple freeze-thaw cycle. If needed, prepare smaller working aliquots and store at -20oC or lower.
The Residual DNA Sample Preparation Kit uses chemical lysis and magnetic beads to extract DNA from diverse sample types, including samples that contain high protein and low DNA concentration. The kit extracts residual genomic DNA from products that are produced in cell lines such as CHO, E. coli, E1A, HEK293, Vero, NS0 and Baculovirus. For quantification of residual DNA, we recommend using the resDNASEQ Residual DNA Quantitation kit as described in the resDNASEQ Residual DNA Quantitation kit User Guide. To ensure accurate quantitative results, each sample in triplicate and perform a single PCR reaction for each extraction.
Video Player
Only three steps will be need for Sample Preparation，and the total time of Sample preparation is about 30 minites.
The good Recovery rate of Sample Preparation.
All components of the Sample Preparation Kit can be stored at room temperature.
Note: Price not include shipment & duty, contact us to get full quote.
The Residual DNA Sample Preparation Kit uses chemical lysis and magnetic beads to extract DNA from diverse sample types, including samples that contain high protein and low DNA concentration. The kit extracts residual genomic DNA from products that are produced in cell lines. The operation is easier and the higher nucleic acid yield is guaranteed at the same time.
