
Introduction
029120 Lugol Iodine
Usage:For starch hydrolysis test.
Specification:10ml.
10ml
029120 Lugol Iodine
Usage:For starch hydrolysis test.
Specification:10ml.
Listeria monocytogenes have emerged as significant foodborne pathogens that pose a serious public health problem. As the causative agent of Listeriosis, L. monocytogenes has the highest rate of fatality rate among all foodborne pathogens. L. monocytogenes is a facultatively intracellular, Gram-positive bacterium that could survive high and low temperatures, low pH. It is a rare causative agent of mastitis in cow. However, due to its ability to resist various food processing technologies as well as to grow at low temperature, L. monocytogenes is know to be associated with both raw and pasteurized milk, as well as dairy products such as cheese. As little as 1000 organisms may cause the disease with pregnant, new-born, and immunocompromised individuals the most susceptible.
Listeria monocytogenes TaqMan PCR Kit, 100 reactions
Listeria monocytogenes TaqMan PCR Probe/Primer Set and Controls, 100 reactions
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Storage Conditions and Product Stability
All kit components can be stored for 2 years after the date of production without showing any reduction in performance.
All kit components should be stored at -20°C upon arrival.
Component | Cat. TM30450 (100 preps) | Cat. TM30410 (100 preps) |
---|---|---|
MDx TaqMan 2X PCR Master Mix | 2 x 700 μL | – |
Listeria monocytogenes Primer & Probe Mix | 280 μL | 280 μL |
Listeria monocytogenes Positive Control | 150 μL | 150 μL |
Nuclease-Free Water (Negative Control) | 1.25 mL | 1.25 mL |
Product Insert | 1 | 1 |
K-AVCHO
SKU: 700004267
100 Assays of each per kit
Content: | 100 assays of each 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: | Available Carbohydrates, Dietary Fiber |
Assay Format: | Spectrophotometer |
Detection Method: | Absorbance |
Wavelength (nm): | 340 |
Signal Response: | Increase |
Linear Range: | 4 to 80 μg of D-glucose, D-fructose or D-galactose per assay |
Limit of Detection: | 1.475 g/100 g |
Reaction Time (min): | ~ 5 h |
Application examples: | Food ingredients, food products and other materials. |
Method recognition: | AOAC Method 2020.07 |
The Available Carbohydrates Assay Kit method is suitable for the determination of available carbohydrates (AVCHO) comprising *total digestible starch (TDS) plus maltodextrins, sucrose, D-glucose, D-fructose and lactose. New Improved method receiving ‘First Action’ status: AOAC 2020.07. This method is designed to simulate in vivo conditions in the human small intestine (i.e. a 4 h incubation time with PAA + AMG) in parallel with recent advances in Dietary Fiber (DF) methodology (K-RINTDF: AOAC Method 2017.16) and in accordance with the new (physiological based) definition of DF announced by Codex Alimentarius in 2009. Also, sucrose is hydrolysed with a specific “sucrase” enzyme which (unlike invertase which has been used traditionally for this reaction) has no action on fructo-oligosaccharides (FOS).
* Total digestible starch (TDS) is defined as starch that is digested in a 4 h period and is part of the carbohydrate that is available for digestion and absorption in the human small intestine.
See our full range of dietary fiber assay kits.
The Available Carbohydrates Assay Kit method is suitable for the determination of available carbohydrates (AVCHO) comprising *total digestible starch (TDS) plus maltodextrins, sucrose, D-glucose, D-fructose and lactose. New Improved method receiving ‘First Action’ status: AOAC 2020.07. This method is designed to simulate in vivo conditions in the human small intestine (i.e. a 4 h incubation time with PAA + AMG) in parallel with recent advances in Dietary Fiber (DF) methodology (K-RINTDF: AOAC Method 2017.16) and in accordance with the new (physiological based) definition of DF announced by Codex Alimentarius in 2009. Also, sucrose is hydrolysed with a specific “sucrase” enzyme which (unlike invertase which has been used traditionally for this reaction) has no action on fructo-oligosaccharides (FOS).
Sample type purification kit guide
The 16S V1-V2 Library Preparation Kit for Illumina consists of the reagents and components required for library preparation of the 16S V1-V2 amplicon libraries to be used for next-generation sequencing on Illumina platforms. All molecular reagents including primers, enzyme mixes, indexes, and buffers are provided. Instructions for PCR clean up with the AMPure XP Magnetic Beads (supplied by customer) are also included for rapid purification of nucleic acid products generated at two steps of the workflow. The library prep workflow could be used for purified DNA inputs from different sources including stool, soil, water, saliva, plant, urine, skin swab, vaginal swab, cheek swab, nasal swab, plasma/serum, tongue swab, gum swab, and others.
The 16S V1-V2 Library Preparation Kit for Illumina has a streamlined procedure that reduces the handling time such that the library prep procedure can be completed in approximately 4 hours (see diagram below). Input DNA is first subjected to targeted PCR to amplify the V1-V2 region of the DNA encoding 16S rRNA. The post-PCR reaction is then cleaned up using AMPure XP beads. Dual index primers are then added using a limited-cycle PCR. The indexed amplicons flanked by 5′ and 3′ barcoded adaptors are then cleaned using AMPure XP beads. The libraries are then ready for quantification, pooling and sequencing.
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Minimum amount of starting material: | 2.5 µL of DNA (5 ng/µL) |
Time to complete library preparation: | 4 hours |
Storage Conditions and Product Stability
Norgen’s 16S V1-V2 Library Prep Kit for Illumina is shipped as one kit box (for the 24 prep kit) or two sub-component kits (for the 96 prep kit). All kits should be stored at -20°C upon arrival.
All kit components should remain stable for at least 1 year when stored at the specified storage conditions.
Step | Component | Cat. 70100 (24 preps) | Cat. 70110, 70120, 70130, 70140 (96 preps) |
---|---|---|---|
Amplicon PCR (PCR 1) | MGX Master Mix | 330 µL | 1,320 µL |
16S V1-V2 Primer Mix | 70 µL | 280 µL | |
Index PCR (PCR 2) | Indexing Master Mix | 660 µL | 2 x 1,320 µL |
N7xx Index Primer | 50 µL | 50 µL | |
S5xx Index Primer | 70 µL | 70 µL | |
PCR Clean-Up | Resuspension Buffer | 2 x 1,250 µL | 2 x 5,000 µL |
Nuclease-free water | 1,250 µL | 1 x 6,000 µL |
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