TCO-PEG12-DBCO

K-MBG4

SKU: 700004319

100 assays (manual) / 400 assays (auto-analyser)

The MBG4 reagent contains a single substrate, namely 4,6-O-benzylidene-2-chloro-4-nitrophenyl-β-(3¹-β-D-cellotriosyl-glucoside) (BCNPBG4). The benzylidene acetal group prevents any hydrolytic action by exo-acting hydrolytic enzymes such as β-glucosidase or cellobiohydrolase.

Mixed linkage β-glucanase (endo-1,3:1,4-β-glucanase) / lichenase (EC 3.2.1.73) acts specifically to release 2-chloro-4-nitrophenol (CNP) from this substrate. The rate of release of CNP is directly related to the β-glucanase/lichenase activity in a sample. The reaction is terminated and the phenolate colour is developed on addition of Tris buffer solution (pH = 10.0).

Note that the substrate is not hydrolysed by β-glucosidase or cellobiohydrolase. The substrate can be hydrolysed by certain endo-cellulases (e.g. Trichoderma sp.) but this does not result in an increase in absorbance.

Discover more assay kits for enzyme activity measurement.

Data calculators are located in the Documents tab.

Advantages

• Very cost effective 
• All reagents stable for > 2 years 
• Specific for endo-1,3:1,4-β-glucanase/lichenase 
• Simple, convenient, rapid assay 
• Well suited to automation 
• Malt flour standard and lichenase standard included

The MBG4 reagent contains a single substrate, namely 4,6-O-benzylidene-2-chloro-4-nitrophenyl-β-(31-β-D-cellotriosyl-glucoside) (BCNPBG4). The benzylidene acetal group prevents any hydrolytic action by exo-acting hydrolytic enzymes such as β-glucosidase or cellobiohydrolase.

The NGS DNA Fragmentation & Library Prep Kit (illumina and MGI Platforms) was developed for construction of high quality libraries for next generation sequencing. The kit uses intact genomic DNA (EDTA-free DNA or DNA resuspended in TE buffer) as input DNA without an additional DNA fragmentation step. Our technology provides a fast and simple workflow. DNA libraries can be generated around 2 hours with only 10 min hands-on time. Library multiplexing is possible.

NGS DNA Fragmentation & Library Prep Kit Workflow

The incorporation of DNA fragmentation in the kit makes it possible to directly use intact genomic DNA as input DNA without the need of mechanical DNA shearing or enzymatic DNA fragmentation. The NGS DNA Fragmentation & Library Prep Kit does not generate sequencing bias as compared to library using mechanical sheared DNA as input. Sequence coverage is also consistent between enzymatic shearing and mechanical shearing. The library size is inversely correlated with the incubation time of step 1 at 20°C.

Three index types are available for the kit of the illumina platform:

Non-index (Cat.# 30026): Libraries do not have index.

Index (Cat.# 30028): Each of the index primers contains a unique index sequence of 6 bases. Library multiplexing for 48 samples is possible. Index information can be downloaded here.

Unique dual index (Cat.# 30030): Library multiplexing for 96 samples is possible. With the unique features of our 4-Base Difference Index System, the index sequence is 8-base long and each index has 4 bases different from others. Our unique dual index primers effectively identify sequencing errors such as index hopping, mis-assignment of reads, and de-multiplexing errors etc. The unique dual index primers set consists of 96 pre-mixed unique pairs of  index primers. Index information can be downloaded here.

Indexes are available for the MGI platform kits (Cat.# 34028).

Kit features:

• • • 1.5-hour protocol from intact genomic DNA to NGS library
    • Intact genomic DNA as input, DNA fragmentation is not needed.
    • Works with both EDTA-free DNA and DNA resuspended in TE buffer
    • Simple workflow: Less steps
    • Guaranteed quality: Higher library conversion efficiency

Library conversion efficiency: 100 ng, 300 ng and 500 ng of intact genomic DNA were used as input.

The library size is inversely correlated with the incubation time of step 1 at 20°C.

NGS data comparison: enzymatic shearing versus mechanical shearing

Enzymatic shearing
• DNA shearing and library prep: BioDynami NGS DNA Fragmentation & Library Prep Kit
Mechanical shearing
• DNA shearing: Covaris sonication
• Library prep: BioDynami NGS DNA Library Prep Kit.

The NGS DNA Fragmentation & Library Prep Kit (illumina and MGI Platforms) was developed for construction of high quality libraries for next generation sequencing. The kit uses intact genomic DNA (EDTA-free DNA or DNA resuspended in TE buffer) as input DNA without an additional DNA fragmentation step. Our technology provides a fast and simple workflow. DNA libraries can be generated around 2 hours with only 10 min hands-on time. Library multiplexing is possible.

K-ASPTM

50 assays (manual) / 500 assays (microplate) / 500 assays (auto-analyser)

This product has been discontinued (read more).

The Aspartame test kit is a simple and reliable method for the specific measurement and analysis of Aspartame in beverages and foodstuffs.

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 MegaQuant^TM  Wave Spectrophotometer (D-MQWAVE).

We have a wide range of other assay kit products.

Advantages

• Very cost effective 
• All reagents stable for > 12 months after preparation 
• Only enzymatic kit available 
• Measures aspartame and breakdown products (L-aspartate and aspartame acid) 
• Very specific 
• Very rapid reaction 
• Mega-Calc™ software tool is available from our website for hassle-free raw data processing 
• Standard included 
• Suitable for manual, microplate and auto-analyser formats

The Aspartame test kit is a simple and reliable method for the specific measurement and analysis of Aspartame in beverages and foodstuffs.