Usages: For enumerating and enriching nonfastidious or fastidious bacteria.
Principle: Tryptone, peptone and yeast extract multivalent powder provides a nitrogen source, vitamins, and growth factors; sodium chloride to maintain osmotic balance.
Formulation（per liter）: Pancreatic Digest of Casein 15g Papaic Digest of Soybean 5g Sodium chloride 5g Agar 15g Final pH 7.3±0.2
How to use： 1.Suspend 40g in 1L of distilled water , stirring heated to boiling ,autoclave at 121℃ for 15 minutes. 2.Diluted and treated samples.
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.
Specifications: 250g/bottle
Other Products
AZtaq™ DNA Polymerase
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Product Info
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AZtaq™ DNA Polymerase is a high-quality DNA polymerase, originating form Thermus aquaticus. Being highly thermostable, AZtaq is ideal for use in polymerase chain reaction (PCR) applications.
The enzyme catalyses the synthesis of a complementary DNA strand using a primed DNA or cDNA strand as template. It possesses 5’-3’ exonuclease activity while lacking 3’-5’ proofreading activity.
AZtaq is compatible with the use of dUTP, enabling highly efficient removal of carry-over contamination with Cod UNG.
Key Features
Excellent qPCR Performance
Compatible with dUTP
Thermostable
Applications
PCR/qPCR
Figures
Properties
Quality Control
ArcticZymes is dedicated to the quality of our products. AZtaq is manufactured at our ISO 13485 certified facility in Norway.
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AZtaq™ DNA Polymerase is a high-quality DNA polymerase, originating form Thermus aquaticus. Being highly thermostable, AZtaq is ideal for use in polymerase chain reaction (PCR) applications.
Bioprocessing with Salt Active Nucleases – High Salt Conditions
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Bioprocessing with Salt Active Nucleases – High Salt Conditions
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For SAN HQ, SAN HQ ELISA Kit, and now SAN HQ GMP
SAN HQ GMP is biochemically identical to SAN HQ but produced under GMP conditions.
Applications
Purification of biologics from residual nucleic acids in biopharma manufacturing
Purification of recombinant proteins and enzymes for research and diagnostic use
Removal of unwanted nucleic acids contamination in molecular biology reagents in challenging conditions
Reduction of viscosity in biological samples during production and automation
Vaccine manufacturing and viral vector preparation
DNA removal in high-salt lysates
SAN HQ – Peak performance at high salt conditions
Salt Active Nuclease High Quality (SAN HQ) is a Bioprocessing Grade nuclease developed as the most efficient solution for removal of both single and double stranded DNA and RNA at high salt conditions.
This nonspecific endonuclease has peak activity at salt concentrations between 400 – 700 mM (Fig. 1)
Non-enveloped viruses like Adenoviruses and Adeno-Associated Viruses (AAV’s) are inherently more robust with two distinct advantages: 1) They exhibit higher tolerance to additives like salt and detergents and 2) their production often involves the lysis of host cells, allowing for harvesting non-secreted vectors.
For Adeno-Associated Viruses (AAVs), which are often harvested from crude cell lysate, the high salt tolerance of SAN HQ is particularly beneficial. Salt is typically added to such lysates to reduce viral aggregation, facilitating more effective nuclease action to digest residual DNA.
SAN HQ’s is engineered for optimum activity in these high salt environments ensuring that you achieve unparalleled DNA removal without compromising the integrity of these robust viral vectors.
Key Benefits
Optimized Residual DNA Removal: Ensures efficient degradation of residual DNA in high-salt conditions, meeting stringent quality requirements for biologics and vaccines.
Boosted AAV Vector Purification: Enhances the purification process for adeno-associated viral vectors in high-salt conditions, improving quality and yield.
Streamlined Workflow: Eliminates the need for desalting stages, simplifying the bioprocessing protocol and saving time and resources.
Enable High-Throughput Processes: Facilitates scale-up and automation by working effectively in high-salt environments, increasing operational throughput.
Potential Surge in Virus Yield: Operates under conditions that may boost the titer yield of AAV production, potentially enhancing overall viral yield.
Economized Enzyme Usage: Reduces the need for excess enzyme and additional process adjustments, resulting in significant cost savings.
Minimized Risk of Process Disruptions: Offers reliable performance in various high-salt bioprocessing conditions, reducing the likelihood of disruptions due to enzyme inhibition.
Reliability: Provides consistent enzyme activity in challenging high-salt conditions, adding a layer of predictability and dependability to your operations.
Broader Applicability: Versatile enough to be used in a wide range of viral vector systems, expanding your research and production capabilities.
Enhanced Viral Stability: High-salt levels stabilize viral vectors, and SAN HQ operates effectively in these conditions, maintaining high yield and quality.
Host Cell Lysis: Facilitates efficient lysis of host cells in high-salt conditions, optimizing the harvest of both secreted and non-secreted viral vectors.
Key Features
High purity (≥ 98%)
No protease detected
Supplied with extended product documentation
Compatible with SAN HQ ELISA
The Challenge in Removing Host Cell Chromatin Impurities
In bioprocessing, the primary role of a nuclease is to efficiently digest and fragment host-cell DNA into sufficiently small pieces, facilitating its removal during downstream processing. While most nucleases can effectively degrade naked DNA into tiny fragments under optimal conditions—as demonstrated by M-SAN HQ and SAN HQ, which can digest dsDNA into fragments smaller than 6 nt—the reality in bioprocessing is more complex. (See fig. 5)
The DNA targeted for removal often exists as chromatin, embedded in a complex matrix containing remnants of the lysed host cell as well as large amounts of the therapeutic product.The product may or may not have an affinity for the chromatin you aim to remove.
High salt is often applied to mitigate issues like aggregation. The real challenge lies in a nuclease’s ability to efficiently fragment chromatin under these more complicated, high-salt, conditions—not merely degrading naked DNA under ideal circumstances.
SAN HQ ELISA kit is developed for the detection and quantification of SAN HQ and SAN HQ GMP. The kit is designed as a classical sandwich ELISA, with two monoclonal antibodies specific towards SAN HQ nuclease (fig 6).
Features
Sensitive: 0.4 – 25.6 ng/ml
Precise: RSD ≤ 15%
Accurate: 100% ± 15%
Stability: 12 months when stored between +2°C to +8°C
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For SAN HQ, SAN HQ ELISA Kit, and now SAN HQ GMP
SAN HQ GMP is biochemically identical to SAN HQ but produced under GMP conditions.
Efficient depletion of bovine exosomes from Fetal Bovine Serum
Deplete exosome-sized vesicles from versatile FBS volumes
No protease treatment required
No time-consuming ultracentrifugation
No precipitation reagents required
No overnight incubation required
Exosome depletion confirmed by reduction of bovine miRNAs below detectable levels
The depleted FBS provides the same cellular growth rates as the standard FBS
Purification is based on Norgen’s proprietary Silicon Carbide resin matrix
Norgen’s FBS Exosome Depletion Kits provides a quick and easy protocol for the depletion of bovine exosomes from FBS prior to using it as a growth supplement in your culture medium. The FBS recovered from the depletion process is exosome-depleted and does not contain any quantifiable bovine miRNAs. Moreover, the exosome-depleted FBS will support the growth of your cells of interest similar to the non-depleted FBS. Norgen’s kits allow for the processing of different FBS volumes. The depletion is based on Norgen’s proprietary resin. These kits provide a clear advantage over other available kits in that they do not require ultracentrifugation, any special instrumentation, precipitation reagents or any protease treatments. More importantly, the depletion process is an inexpensive method for exosome depletion from FBS, as compared to the expensive current ready-to-use exosome-depleted media available on the market.
Background
Most culture medium used for the growth and propagation of cells in culture require the addition of fetal bovine serum (FBS) as a growth supplement to media. FBS is obtained from bovine (cow) serum, and therefore contains large quantities of bovine exosome vesicles. These exosomes may interfere with some types of studies, or may lead to unreliable results when studying the exosomes shed from your cells of interest in normal culture conditions. Therefore, the use of exosome-depleted FBS is highly recommended for many types of studies.
Up to 140 mL (FBS Exosome Depletion Kit I (Slurry Format) Up to 280 mL (FBS Exosome Depletion Kit II (Slurry Format)
Depletion
Deplete exosome-sized vesicle
Bovine miRNA
No detectable bovine miRNA
Time to Complete 6 Purifications
40 minutes
Storage Conditions and Product Stability All buffers should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years after the date of shipment.
