Usages: For selective isolation of Gram-negative bacteria, especially for Shigella and Salmonella.
Principle: Yeast extract powder provide nitrogen, vitamins, growth factors; sodium chloride to maintain osmotic equilibrium ferric ammonium citrate of iron salts to produce a black iron sulfide; agar as medium coagulant; phenol red as pH indicator.
Formulation（per liter）: Xylose 3.50g L-Lysine 5.00g Lactose 7.50g Sucrose 7.50 g Sodium Chloride 5.00 g Yeast Extract 3.00g Sodium Desoxycholate 2.50g Sodium Thiosulphate 6.80g Fe-Ammonium Citrate 0.80g Phenol Red 0.08g Agar 13.50 Final PH 7.4±0.2
How to use: 1.Suspend 55.2g in 1Lof distilled or deionized water. Heat with frequent agitation and boil to completely dissolve the powder. Do not autoclave ,cool to 50℃ and pour into sterile petri dishes. 2.Dilluted and treated samples.
Quality control: Quality control strains were inoculated ,and cultured at 36 ± 1 ℃ for 24h ,results show as follows: strain name strain code growth feature Arizona bacteria CMCC (B) 47001 good black colonies Salmonella typhimurium CMCC (B) 50115 good black colonies Streptococcus faecalis CMCC32223 prohibited —
Storage: Store in a dark, cool and dry place, tighten the cap immediately after use. Storage period of three years.
Specifications: 250g/bottle
Other Products
Phosphate Assay Kit
Product Info
Document
Product Info
K-PHOS
SKU: 700004326
100 assays (manual) / 400 assays (auto-analyser)
Content:
100 assays (manual) / 400 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:
Phosphate
Assay Format:
Spectrophotometer, Auto-analyser
Detection Method:
Absorbance
Wavelength (nm):
360
Signal Response:
Increase
Linear Range:
0.1 to 10 μg of phosphate per assay
Limit of Detection:
0.16 mg/L
Reaction Time (min):
~ 20 min
Application examples:
Processed foods and drinks, bakery products, dairy products, waste water samples, cosmetics, pharmaceuticals and other materials (e.g. biological cultures, etc.).
The Phosphate Assay Kit is a rapid, simple, reliable and accurate method for the specific measurement and analysis of phosphate in water, foodstuffs, beverages and other materials. The phosphate detection reaction employs the defined chemical substrate 2-amino-6-mercapto-7-methylpurine ribonucleoside (MESG). In the presence of phosphate, the substrate is converted enzymatically by purine nucleoside phosphorylase (PNPase) to the products ribose 1-phosphate and 2-amino-6-mercapto-7-methylpurine. An application note describes the dephosphorylation reaction of phytic acid using phytase and alkaline phosphatase (sold separately), and subsequent phosphate detection using the reagents provided in K-PHOS.
This method is suitable for analysis using spectrophotometer and auto-analyser.
Note for Content: The number of manual tests per kit can be doubled if all volumes are halved.
Need other products? See our complete list of assay kits.
Advantages
Chemically defined detection method
All reagents stable for > 2 years after preparation
Rapid reaction (~ 20 min)
Mega-Calc™ software tool is available from our website for hassle-free raw data processing
Standard included
Suitable for manual and auto-analyser formats
Document
The Phosphate Assay Kit is a rapid, simple, reliable and accurate method for the specific measurement and analysis of phosphate in water, foodstuffs, beverages and other materials. The phosphate detection reaction employs the defined chemical substrate 2-amino-6-mercapto-7-methylpurine ribonucleoside (MESG). In the presence of phosphate, the substrate is converted enzymatically by purine nucleoside phosphorylase (PNPase) to the products ribose 1-phosphate and 2-amino-6-mercapto-7-methylpurine. An application note describes the dephosphorylation reaction of phytic acid using phytase and alkaline phosphatase (sold separately), and subsequent phosphate detection using the reagents provided in K-PHOS.
Isolate DNA from a wide range of food materials. (e.g boiled, fluid, processed or raw food products)
No hazardous chemicals required (e.g. phenol or chloroform)
Effective lysis with Proteinase K and optional lysozyme treatment
Fast (less than 15 minutes hands-on time) and convenient processing using a rapid spin-column format
Wide compatibility with a variety of food products for GMO-DNA isolation
Universal protocol for food related pathogen DNA isolation (Gram positive and Gram negative)
This kit provides a rapid spin column method for the isolation and purification of total DNA from a wide range of food samples originating from animals or plants. The kit is designed for identification of GMO-DNA or animal components in food and feed and can be used for a wide range of starting materials including raw or processed food, meat, liquids, sauces and dairy products including milk, cheese and yogurt.
This kit also provides a convenient method for the detection of food-related pathogens and will isolate such DNA (enriched or as is) including Gram-positive bacteria, Gram-negative bacteria, yeast and fungi which may contaminate food sources. A number of pathogens have been tested including E. coli O157:H7, Staphylococcus, Listeria monocytogenes, Salmonella enterica & Campylobacter jejuni. The purified DNA is of the highest integrity, and can be used in a number of downstream applications including PCR based detection, sequencing and genotyping.
Maximum Amount of Starting Material: Solid food material Liquid sample (e.g. milk or concentrated juice)
200 mg 1 mL to 1.5 mL
Time to Complete 10 Purifications
45 minutes
Storage Conditions and Product Stability All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 1 year after the date of shipment. The kit contains a ready-to-use Proteinase K, which is dissolved in a specially prepared storage buffer. The buffered Proteinase K is stable for up to 1 year after the date of shipment when stored at room temperature.
Samples Tested by PCR
Food Materials
Samples that Have Been Tested by PCR
Plant related
Cereal, Jam, Chocolate, Spices, Sauce
Animal related
Raw and processed meat products (e.g. ham, beef jerky, taco seasoned ground beef, pork and sausage)
Dairy product
Milk, Yogurt, Cheese
Pathogens (enriched from food samples)
E. coli O157:H7 from food sample Staphylococcus from milk Listeria monocytogenes from milk Salmonella enterica from raw meat Campylobacter jejuni from milk
CE-IVDR marked in accordance with the European Commission Regulation (EU) No. 2017/746.
Ideal for use in in vitro diagnostic workflows
Simultaneous isolation of both host DNA and microbial DNA (universal protocol)
Eliminates PCR inhibitors including humic acids
Fully compatible with Norgen’s Stool Nucleic Acid Collection and Transport Tubes
High quality DNA for sensitive downstream applications including PCR, qPCR, sequencing and microarray
This kit provides a convenient and rapid method to isolate total DNA from fresh, frozen and preserved stool samples, including those preserved using Norgen’s Stool Nucleic Acid Collection and Preservation Devices Dx (Cat. Dx45660). The universal protocol conveniently allows for the isolation of total genomic DNA from all the various microorganisms and host cells found in the stool sample simultaneously. The kit removes all traces of humic acids and other inhibitors using Bead Tubes and a combination of chemical and physical homogenization and lysis, without the need of any phenol-chloroform extractions. A simple and rapid spin column procedure is then used to further purify the DNA with high yields and molecular weights of up to 50 kb plus. The purified DNA is of the highest quality and is fully compatible with all downstream applications such as PCR, qPCR, NGS and microarrays since all humic acid substances and other PCR inhibitors are removed during the isolation process.
NOTE: This product is not available for sale in the United States.
200 mg (fresh/frozen stool) or 400 μL (preserved stool)
Type of Stool Processed
Frozen, fresh or preserved stool
Format
Spin Column
Maximum Column Binding Capacity
50 μg
Maximum Column Loading Volume
650 μL
Elution Volume
50 μL
Time to Complete 10 Purifications
30 minutes
Applications
PCR, qPCR, Southern Blot Analysis, Sequencing, Microarray Analysis.
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.
