NH-bis(PEG2-propargyl) is a multi-branched linker with two terminal propargyl groups and an amino group. The propargyl groups reacts with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry to yield a stable triazole linkage. The amino group is reactive with carboxylic acids, activated NHS esters, and carbonyls. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
NH-bis(PEG2-propargyl) is a multi-branched linker with two terminal propargyl groups and an amino group. The propargyl groups reacts with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry to yield a stable triazole linkage. The amino group is reactive with carboxylic acids, activated NHS esters, and carbonyls. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
K-FRUC
SKU: 700004285
100 assays per kit
| Content: | 100 assays per kit |
| Shipping Temperature: | Ambient |
| Storage Temperature: | Short term stability: 2-8oC, Long term stability: See individual component labels |
| Stability: | > 2 years under recommended storage conditions |
| Analyte: | Fructan |
| Assay Format: | Spectrophotometer |
| Detection Method: | Absorbance |
| Wavelength (nm): | 410 |
| Signal Response: | Increase |
| Linear Range: | 2.3 to 55 µg of D-fructose or D-glucose per assay |
| Limit of Detection: | 0.16 g/100 g |
| Total Assay Time: | ~ 90 min |
| Application examples: | Flours, infant formula, animal feed, pet foods, plant materials (e.g. onion), food products and other materials |
| Method recognition: | AACC Method 32-32.01, AOAC Method 999.03, AOAC Method 2016.14, AOAC Method 2018.07 and CODEX Method Type III |
The Fructan Assay Kit is suitable for the specific measurement of fructan in plant extracts, animal feed and food products containing starch, sucrose and other sugars. It is used in three validated methods for the determination of fructan: AOAC method 999.03 (foods), AOAC method 2018.07 (Animal Feed) and AOAC method 2016.14 (infant formula and adult nutritionals).
New, improved procedure.
In the most recent development, a recombinant endo-levanase has been incorporated into the fructanase mixture, extending the use of the method to the measurement of levan-type fructans as are present in grasses such as timothy, cocksfoot, ryegrass and red fescue.
The method described in this booklet employs ultra-pure, recombinant enzymes and specifically measures fructans including inulin-type fructans from chicory, dahlia, jerusalem artichoke; highly branched fructans from onion and wheat stems and leaves; and levan-type fructans from pasture grasses such as timothy grass. The enzymes employed are completely devoid of contaminating enzymes active on β-glucan or gluco-oligosaccharides.
Browse our full range of polysaccharide assay kits.
Validation of Methods
Advantages
The Fructan Assay Kit is suitable for the specific measurement of fructan in plant extracts, animal feed and food products containing starch, sucrose and other sugars. It is used in three validated methods for the determination of fructan: AOAC method 999.03 (foods), AOAC method 2018.07 (Animal Feed) and AOAC method 2016.14 (infant formula and adult nutritionals).
Norgen’s AAV Quantification Kit is designed for the detection of adeno-associated virus (AAV) inverted terminal repeat (ITR) sequences in a real-time PCR based on the use of TaqMan® technology. A purified standard based solely on the AAV2 ITR sequence purified using Norgen’s proprietary silicon carbide technology simplifies the generation of a reliable standard curve for AAV quantification. Avoidance of a plasmid based standard eliminates problems associated with efficient melting of the ITR sequence due to coupling of the ITR to the much longer plasmid sequence, as well as variability due to rearrangements/duplications/deletions of the recombination prone ITR. An easy and rapid method for viral DNA extraction simplifies the step of obtaining AAV DNA while simultaneously eliminating contaminating non-encapsidated DNA. Norgen’s AAV Quantification Kit can facilitate pre-clinical studies that require accurate vector titration as well as interlab comparisons of vector quantities. This kit is designed for research use only and not for use in diagnostic procedures.
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Storage Conditions and Product Stability
All kit components should be stored at -20°C upon arrival. Repeated thawing and freezing (> 2 x) of the Master Mix and Positive Control should be avoided, as this may affect the performance of the assay. If the reagents are to be used only intermittently, they should be frozen in aliquots. All reagents can be stored for 1 year at -20°C without showing any reduction in performance.
| Component | Cat. 63800 (24 rxns) |
|---|---|
| Enzyme Incubation Buffer A | 500 µL |
| DNase I | 25 µL |
| DNase Stop Solution | 100 µL |
| 2X PCR Mastermix | 350 µL |
| AAV Primer & Probe Mix | 90 µL |
| AAV Standard | 6 µL |
| Nuclease-Free Water (Negative Control) | 1.25 mL |
| Product Insert | 1 |
DBCO-PEG9-DBCO is a click chemistry linker with two DBCO groups and a hydrophilic PEG spacer arm. DBCO is reactive with azide-bearing compounds or biomolecules to form a stable triazole linkage without copper catalyst. The hydrophilic PEG9 arm increase water solubility and membrane permability. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
DBCO-PEG9-DBCO is a click chemistry linker with two DBCO groups and a hydrophilic PEG spacer arm. DBCO is reactive with azide-bearing compounds or biomolecules to form a stable triazole linkage without copper catalyst. The hydrophilic PEG9 arm increase water solubility and membrane permability. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
