Huayi Cell Factory is a robust and easy-to-use cell culture platform for applications in the production of human and animal vaccines, therapeutic proteins, cell therapy, and gene therapy.
To address the needs of your workflow, We have three kinds of mouth, which is available on most cell culture products to ensure consistent performance from lot to lot and from format to format.
Huayi Cell Factory is a robust and easy-to-use cell culture platform for applications in the production of human and animal vaccines, therapeutic proteins, cell therapy, and gene therapy.
To address the needs of your workflow, We have three kinds of mouth, which is available on most cell culture products to ensure consistent performance from lot to lot and from format to format.
The product assembled with ultrasonic welded technology
Versatile port design facilitates both pouring and aseptic filling techniques
Gamma radiation sterilization
the cell culture surface area
of one 10-layer Cell Factory unit is equivalent to the area
of 36 T-175 flasks
Double Wide Mouth
Other Products
Fecal DNA Collection & Preservation Mini Tubes
Product Info
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Product Info
Overview
No need to immediately process samples
Includes pre-loaded beads for effective sample homogenization by bead beating (tubes are fully compatible with commercially available bead beating systems)
DNA preservation at room temperature over 2 years
Ship fecal samples at room temperature safely
Compatible with most DNA isolation methods
Norgen’s Fecal DNA Collection & Preservation Mini Tubes are designed for the rapid preservation of DNA from fresh fecal specimens. These tubes contain Norgen’s Fecal DNA Preservative in a liquid format. Moreover, each collection tube is preloaded with beads for effective sample homogenization in any commercially available bead beater equipment (e.g. MP Biomedicals’ FastPrep®-24). The user simply collects fecal samples into the tubes and mixes by shaking or vortexing until the feces is mixed well with preservative. The preservative prevents the growth of Gram-negative and Gram-positive bacteria and fungi, and also inactivates viruses allowing the resulting non-infectious samples to be handled and shipped safely. In addition, the preservative eliminates the need to immediately process or freeze samples and allows the samples to be shipped to centralized testing facilities at ambient temperatures. The components of the preservative allow the DNA in the samples to be preserved at room temperature for over 2 years.
This kit is highly suited to collection and preservation of fecal material from mouse, hamster, chinchilla, rabbit and more for microbiome studies and other applications.
DNA Isolation from Preservative
Fecal samples collected and preserved in Norgen’s Fecal DNA Collection and Preservation Mini Tubes are compatible with most fecal DNA isolation methods. Samples stored in the tubes have been used successfully with all of Norgen Biotek’s stool-based DNA isolation kits (please refer to Related Products table) and reagents.
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Storage Conditions and Product Stability All tubes should be kept tightly sealed and stored at room temperature (15 – 25°C) for up to 2 years without any reduction in performance.
Kit Components
Cat. 27650
Fecal DNA Collection & Preservation Mini Tubes (containing liquid preservative and beads)
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 2 years under recommended storage conditions
Analyte:
Pullulanase/Limit-Dextrinase
Assay Format:
Spectrophotometer
Detection Method:
Absorbance
Wavelength (nm):
400
Signal Response:
Increase
Limit of Detection:
0.18 U/mL for pullulanase preparations (50-fold dilution) 0.01 U/g for limit dextrinase in milled malt
Reproducibility (%):
~ 3%
Total Assay Time:
~ 10 min (Pullanase), ~ 30 min (Limit-Dextrinase)
Application examples:
Assay of microbial pullulanase preparations. Measurement of limit-dextrinase in malt extracts.
Method recognition:
Novel method
PullG6 assay for the measurement of pullulanase employs a water soluble defined substrate, namely 4,6-O-benzylidene-4-nitrophenyl-63-α-D-maltotriosyl-maltotriose (BPNPG3G3), coupled with the ancillary enzymes α-glucosidase and β-glucosidase. Upon hydrolysis of the substrate at the 1,6-α-linkage by pullulanase or limit-dextrinase, the released 4-nitrophenyl-β-maltotrioside is immediately hydrolysed to glucose and 4-nitrophenol by the concerted action of the α-glucosidase and β-glucosidase enzymes in the reagent mixture. The reaction is terminated and phenolate ions are developed by addition of dilute alkali. The absorbance is read at 400 nm and the value obtained correlates directly with pullulanase activity.
Available in 3 formats: Mini, Midi, and Maxi to suit your desired input volume
Remove endotoxins from up to 1 mg of DNA with the Maxi format kit
Fast and easy processing using a rapid spin-column format
These kits are designed for the rapid spin column removal of endotoxins from previously purified DNA. Norgen’s spin columns bind DNA while endotoxins, salts and other contaminants are washed away. These kits reduce endotoxins to 0.1 EU/μg DNA or less providing plasmid DNA that is immediately ready for transfections or other endotoxin-sensitive applications. Typical recovery of DNA is >90% of the starting sample.
Endotoxin Removal Kit (Mini)
This kit is designed for the rapid spin column removal of endotoxins from up to 25 µg of previously purified DNA. The convenient spin column procedure can be completed in approximately 20 minutes.
Endotoxin Removal Kit (Midi)
This kit is designed for the rapid spin column removal of endotoxins from up to 200 μg of previously purified DNA. The convenient spin column procedure can be completed in approximately 30 minutes.
Endotoxin Removal Kit (Maxi)
This kit is designed for the rapid spin column removal of endotoxins from up to 1 mg of previously purified DNA. The convenient spin column procedure can be completed in approximately 30 minutes.
About Endotoxins
Endotoxins (also called lipopolysaccharides), are cell-membrane components of Gram-negative bacteria such as E. coli. Endotoxins are released during the lysis step of plasmid purification and significantly reduce transfection efficiencies in endotoxin sensitive cell lines. Therefore, the removal of endotoxins from plasmid preparations is often necessary prior to the use of the DNA in such downstream applications.
Storage Conditions and Product Stability All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years after the date of shipment.
