Usages: Yeast extract is made from yeast, used in microbiological culture media as a source of nitrogen and B vitamins.
Technical specification: Total nitrogen(TN)—————————≥10.0% Amino nitrogen(AN) ————————≥4.0% Moisture—————————————≤5.0% Ash———————————————≤10.0% Clˉ——————————————–<2.0%
Storage: Keep container tightly closed, store in a cool, dry place, away from bright light.
Specifications: 500g/bottle; 10kg/bag
Other Products
FFPE RNA Purification Kits
Product Info
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Product Info
Overview
Extract total RNA (including microRNA) from FFPE samples
No phenol extraction step
Includes DNase for optional on-column DNA removal
Isolated RNA is of the highest quality and integrity
Isolate a diversity of RNA species
Purified RNA is suitable for a variety of downstream applications, including Small RNA Sequencing. Find out more information on Norgen’s NGS services
Purification is based on spin column chromatography that uses Norgen’s proprietary resin separation matrix
Norgen’s FFPE RNA Purification Kits provide a rapid method for the isolation and purification of total RNA (including microRNA) from formalin-fixed paraffin-embedded (FFPE) tissue samples in as little as 1 hour. Using formalin to fix tissues leads to crosslinking of the RNA and proteins, and the process of embedding the tissue samples can also lead to fragmentation of the RNA over time. Norgen’s FFPE RNA Purification Kits provide conditions that allow for the partial reversing of the formalin modifications, resulting in a high quality and yield of RNA. These kits are able to purify all sizes of RNA, from large mRNA and ribosomal RNA down to microRNA (miRNA) and small interfering RNA (siRNA), depending on the age of the FFPE tissue as fragmentation of the RNA is known to occur over time. The RNA is preferentially purified from other cellular components without the use of phenol or chloroform.
FFPE RNA Purification Kit (Spin Column)
Maximum loading volume of 650 μL per column, and a maximum binding capacity of 50 μg per column.
Purification is based on 96-well column chromatography using Norgen’s proprietary resin as the separation matrix. Purification can be performed using either a vacuum manifold or centrifugation. Maximum loading volume of 400 μL per well, and a maximum binding capacity of 50 μg per well.
5 slices of < 20 µm thick paraffin slices 25 mg of unsectioned block
Average Yield
Variable due to age of paraffin blocks ~2-3 µg of Total RNA per 1 mg of fresh FFPE hamster kidney
* Time required for purification varies by length of Proteinase K incubation and formalin crosslink-reversal
Storage Conditions and Product Stability All solutions should be kept tightly sealed and stored at room temperature. The DNAse I and Proteinase K should be stored at -20°C upon arrival. This kit is stable for 1 year from the date of shipment.
Heat-Labile Exonuclease I (HL-ExoI) is a 3’ – 5’ exonuclease, specific for single stranded DNA. The enzyme is recombinantly produced in E. coli. HL-ExoI is active at 25 – 37°C and inactivated by 1 minute incubation at 80°C or 15 minutes at 60°C.
HL-ExoI is used for degradation of ssDNA such as primers and oligos. It is also ideal for treatment of sensitive samples and useful in the development of novel molecular diagnostics applications.
Key Features
3’-5’ exonuclease specific for single stranded DNA
High activity at 25 – 37°C
Easily heat-inactivated by 1 min incubation at 80°C, or 15 min at 60°C
Moderate salt tolerance
Application
Removal of primers post-PCR prior to DNA sequencing or SNP detection
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Properties
Quality Control
ArcticZymes is dedicated to the quality of our products. We manufacture all products at our ISO 13485 certified facility in Norway.
Document
Heat-Labile Exonuclease I (HL-ExoI) is a 3’ – 5’ exonuclease, specific for single stranded DNA. The enzyme is recombinantly produced in E. coli. HL-ExoI is active at 25 – 37°C and inactivated by 1 minute incubation at 80°C or 15 minutes at 60°C.