Abstract
Abstract in Undetermined
The oxygen concentration in the headspace of a large number of liquid food containers is assessed with non-intrusive diode laser absorption spectroscopy. The results are compared to those given by a traditional intrusive measurement method. The upper portions of the containers are made of translucent but non-transparent plastic materials, through which the laser light is diffusively transmitted. Measurements are performed both on packages with modified atmosphere and with normal air conditions. It is concluded that the novel non-intrusive technique provides oxygen concentrations that generally differ by less than one percentage point from the reference sensor values.
The oxygen concentration in the headspace of a large number of liquid food containers is assessed with non-intrusive diode laser absorption spectroscopy. The results are compared to those given by a traditional intrusive measurement method. The upper portions of the containers are made of translucent but non-transparent plastic materials, through which the laser light is diffusively transmitted. Measurements are performed both on packages with modified atmosphere and with normal air conditions. It is concluded that the novel non-intrusive technique provides oxygen concentrations that generally differ by less than one percentage point from the reference sensor values.
| Original language | English |
|---|---|
| Pages (from-to) | 612-617 |
| Journal | Journal of Food Engineering |
| Volume | 111 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2012 |
Subject classification (UKÄ)
- Other Mechanical Engineering
- Atom and Molecular Physics and Optics
Free keywords
- Non-intrusive
- Laser
- Spectroscopy
- Headspace
- Gas sensing
- Modified atmosphere
- Packaging logistics