Basic information
Flavor stability relates to the rate of flavor change through the shelf-life of packaged beer. The fermentation and the influence of yeast are key control points in the production of beer where flavor stability may be altered.
Experiment with brewing technique and use Paramagnetic Resonance Spectroscopy to predict when beer is getting bad.
Electron Paramagnetic Resonance Spectroscopy is a unique tool for direct free radicals detection. Accelerated beer aging test with ESR spin-trapping assay method is the easiest way and shorter analysis time to estimate the shelf life of beer.
Package for lag time beer test
- Benchtop ESR Spectrometer SPINSCAN XB
- Thermo Bath with magnetic stirring
- Flow through system (pump, cell, hoses)
- Lab ware
- Spin Trap Kit
- Software package
- Beer Lag Time apps
Peculiarities:
- Cavity Q factor and MW power measurement
- Magnetic field modulation – 10 kHz – 250 kHz
- Phase detection range 0-360 degrees
- First and second harmonics detection (in phase and out of phase)
- Amplitude resolution 24 bit
- Broad signal channel dynamic range – digitization up to 140 dB in one scan
- High magnetic field resolution – up to 256 000 pts for any sweep range
- Automatic self- test of system
- 2D – experiments (intensity vs MW power, modulation amplitude, temperature, etc.)
- Interface via Ethernet
- e-Spinoza Software– comprehensive user-oriented software kit with functions for acquisition and mathematic treatment
- Nice and ergonomic design
Key features
Detection of radicals initiated via various form of activated oxygen
Self oxidation control
Antioxidant effect control
Fenton reaction – traces of iron, copper and manganese
Accelerated shelf-life studies SOP for beer lag time measurements
Automatic and manual operation modes
Video
Technical data
Technical details
| Sensitivity | 8×109 spins / 0,1 mT |
| Resolution | 0,005 mT |
| Maximum magnetic field | 0,7 T |
| Sweep width | 10-4—0,65T |
| Operating Frequency | X-band |
| Microwave power | 0,01—200 mW |
| Magnetic field modulation | 10—250 kHz |
| MW bridge and cavity tuning | Automatic |
| Cavity | TE102 |
| Q unloaded | 5000 |
| Amplitude resolution | 24 bit |
Dimensions
| Overall dimensions | |
|---|---|
| Width | 470 mm |
| Length | 380 mm |
| Height | 260 mm |
| Weight (maximum) | 45 kg |
|---|
Technical details
| Sensitivity | 8×109 spins / 0,1 mT |
| Resolution | 0,005 mT |
| Maximum magnetic field | 0,7 T |
| Sweep width | 10-4—0,65T |
| Operating Frequency | X-band |
| Microwave power | 0,01—200 mW |
| Magnetic field modulation | 10—250 kHz |
| MW bridge and cavity tuning | Automatic |
| Cavity | TE102 |
| Q unloaded | 5000 |
| Amplitude resolution | 24 bit |
Dimensions
| Overall dimensions | |
|---|---|
| Width | 18,5″ |
| Length | 14.9″ |
| Height | 10.2″ |
| Weight (maximum) | 99.2 lbs |
|---|
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