endo-BCN-PEG2-PFP ester is a click chemistry active ester. The PFP esters have similar applications as the NHS esters, but are more stable in aqueous solution. They can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The BCN group can react with azide-tagged biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
endo-BCN-PEG2-PFP ester is a click chemistry active ester. The PFP esters have similar applications as the NHS esters, but are more stable in aqueous solution. They can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The BCN group can react with azide-tagged biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
K-PYRUV
SKU: 700004330
100 assays (manual) / 1000 assays (microplate) / 1000 assays (auto-analyser)
| Content: | 100 assays (manual) / 1000 assays (microplate) / 1000 assays (auto-analyser) |
| 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: | Pyruvic Acid |
| Assay Format: | Spectrophotometer, Microplate, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 340 |
| Signal Response: | Decrease |
| Linear Range: | 0.3 to 40 µg of pyruvic acid per assay |
| Limit of Detection: | 0.39 mg/L |
| Reaction Time (min): | ~ 3 min |
| Application examples: | Wine, beer, fruit juices, soft drinks, cheese, dietary supplements, pharmaceuticals and other materials (e.g. biological cultures, samples, etc.). |
| Method recognition: | Novel method |
For the specific and rapid measurement and analysis of pyruvic acid in beer, wine, fruit juice, food products and bodily fluids.
Note for Content: The number of manual tests per kit can be doubled if all volumes are halved. This can be readily accommodated using the MegaQuantTM Wave Spectrophotometer (D-MQWAVE).
Display our full list of assay kits for various organic acids.
Advantages
For the specific and rapid measurement and analysis of pyruvic acid in beer, wine, fruit juice, food products and bodily fluids.
Usages:
For the growth of pathogenic and non-pathogenic microorganisms.
Principle:
Polypeptone provide carbon and nitrogen sources, vitamins and growth factors; Neisseria starch can promote the growth characteristics and enhanced hemolytic streptococci; sodium chloride to maintain osmotic balance; agar as culture medium coagulant.
Formulation (per liter):
Peptone: 10g
Beef extract powder :10g
Sodium chloride: 5g
Agar :15g
Final pH 7.4 ± 0.2
How to use:
1. Suspend 40g of the product, adding 1 L of distilled or deionized water, ,heated to boiling stirring until completely dissolved, dispensing into flask, 121 autoclaved 15min.
2.After the medium is cooled to about 50 , sterile procedures, basal medium was added per 100mL defibrinated sheep or rabbit blood 5-10mL, shake pour plate; also dispensing sterile tubes set into the slope. Spare.
3. take the bacteria to be tested fresh pure cultures inoculated crossed or coated on the plate, set the temperature of the incubator training requirements were cultured for a predetermined time.
4. Observe the results.
Quality control:
The following were inoculated after 36 ± 1 for 24h , the results are as follows:
bacteria name bacteria No. growth status colony characteristics
Escherichia coli ATCC25922 not good hemolysis
Staphylococcus aureus, ATCC6538 good β-hemolytic
Beta-hemolytic streptococcus CMCC (B) 32210 good β-hemolytic
Streptococcus pneumoniae CMCC (B) 31001 good α-hemolytic
Storage: Store in a dark, cool and dry place, tighten the cap immediately after use. Storage period of three years.
500g
