K-DSTRS
SKU: 700004277
40 assays of each per kit
| Content: | 40 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: | Digestible Starch, Resistant Starch, Total Starch |
| Assay Format: | Spectrophotometer |
| Detection Method: | Absorbance |
| Wavelength (nm): | 510 |
| Signal Response: | Increase |
| Linear Range: | 4 to 100 μg of D-glucose per assay |
| Limit of Detection: | 3.1 g/100 g |
| Reaction Time (min): | ~ 360 min |
| Application examples: | Plant materials, starch samples and other materials. |
The Digestible and Resistant Starch Assay Kit (K-DSTRS) for the determination of digestible, resistant and total starch in starch samples, plant and other materials.
This method is based on the research of Englyst et al. (Ref) with some modifications. Digestion is performed using saturating levels of pancreatic α-amylase (PAA) and amyloglucosidase (AMG), but in stirred containers rather than shaken tubes, to simplify sample removal.
In line with Englyst definitions:
Rapidly digestible starch (RDS) is that starch which is digested within 20 min.
Slowly digestible starch (SDS) is that starch which is digested between 20 and 120 min.
A new term, ‘Total digestible starch (TDS)’ is introduced (and measured) to cover all starch that is digested within 4 h (the average time of residence of food in the human small intestine).
Resistant starch (RS) then, is that starch which is not digested within 4 h.
The incubation conditions parallel those used in AOAC Method 2017.16, a new, rapid integrated procedure for the measurement of total dietary fiber (Megazyme method K-RINTDF). This method is physiologically based and designed to fit the definition of DF announced by Codex Alimentarius in 2009.
See our full range of starch and dietary fiber assay kits.
The Digestible and Resistant Starch Assay Kit (K-DSTRS) for the determination of digestible, resistant and total starch in starch samples, plant and other materials.
HiPure RNA Clean Up Kit provides a rapid and easy method for the purification and concentrate RNA from enzymatic reactions or for desalting the RNA samples. RNA purified using HiPure RNA Clean Up Kit is ready for all downstream applications such as RT-PCR, Northern blotting, mRNA purification, nuclease protection, and in vitro translation.
Specifications
| Features | Specifications |
| Main Functions | Purification and concentration of RNA（mRNA>200nt or miRNA）from transcription products, DNase cleavage products, labeled products, and crude RNA products |
| Applications | Sequencing, ligation, enzyme digestion, RT-PCR, labeling, etc. |
| Purification method | Mini spin column |
| Purification technology | Silica technology |
| Process method | Manual (centrifugation or vacuum) |
| Sample type | Crude RNA, enzymatic reaction solution |
| Sample amount | ≤100μl |
| Recovery | 90% |
| Elution volume | ≥15μl |
| Time per run | ≤15 minutes |
| Liquid carrying volume per column | 800μl |
| Binding yield of column | 100μg |
The HiPure system uses a simple bind-wash-elute procedure. Binding buffer is added directly to the sample or other enzymatic reaction, and the mixture is applied to the column. Nucleic acids adsorb to the silica membrane in the high-salt conditions provided by the buffer. Impurities are washed away and pure RNA is eluted with a small volume of low-salt buffer provided or water, ready to use in all subsequent applications.
Advantages
Kit Contents
| Contents | R214402 | R214403 |
| Purification Times | 50 Preps | 250 Preps |
| Buffer GXP | 30 ml | 120 ml |
| Buffer RW2 | 20 ml | 2 x 50 ml |
| RNase-Free Water | 20 ml | 60 ml |
| HiPure RNA Mini Columns I | 50 | 250 |
| 2 ml Collection Tubes | 50 | 250 |
Storage and Stability
The Kit can be stored dry at room temperature (15-25°C) and are stable for at least 18 months under these conditions. The entire kit can be stored at 2-8°C, but in this case buffers should be redissolved before use. Make sure that all buffers are at room temperature when used.
HiPure RNA Clean Up Kit provides a rapid and easy method for the purification and concentrate RNA from enzymatic reactions or for desalting the RNA samples. RNA purified using HiPure RNA Clean Up Kit is ready for all downstream applications such as RT-PCR, Northern blotting, mRNA purification, nuclease protection, and in vitro translation.
Permagen’s 15 mL / 50 mL Adapter Plate was designed with automation in mind. The SBS/ SLAS footprint (127.75mm x 85.50mm) will act as an insert on your automated liquid handler allowing any of our Centrifuge Tube racks to essentially become ready for automation
Allows the transfer from large volumes into microplates etc. where magnetic separation cannot be achieved
Features include solid aluminum alloy design with hard coat finish for years of trouble-free use, and simple integration
MSR1550ADP
Works with any of our six position Centrifuge Tube Racks
Permagen’s 15 mL / 50 mL Adapter Plate was designed with automation in mind. The SBS/ SLAS footprint (127.75mm x 85.50mm) will act as an insert on your automated liquid handler allowing any of our Centrifuge Tube racks to essentially become ready for automation