Article, 2018

Design and evaluation of an in-line system for gas sensing in flow-packed products

Food Packaging and Shelf Life, ISSN 2214-2894, Volume 17, Pages 91-98, 10.1016/j.fpsl.2018.06.006

Contributors

Cocola, Lorenzo (Corresponding author) [1] Fedel, Massimo [1] Tondello, Giuseppe [2] Frazzi, Giancarlo [3] Poletto, Luca 0000-0002-0914-0531 [1] Bardenshtein, Alexander [4] Landa, Stanislav [4] Allermann, Helle [4]

Affiliations

  1. [1] Istituto di Fotonica e Nanotecnologie
    2. [NORA names: Italy; Europe, EU; OECD];
  2. [2] LPRO srl, Via del Lavoro, 1, 36043 Camisano Vicentino VI, Italy
    3. [NORA names: Italy; Europe, EU; OECD];
  3. [3] FT System srl, Via Leonardo da Vinci, 117, 29010 Alseno PC, Italy
    4. [NORA names: Italy; Europe, EU; OECD];
  4. [4] Danish Technological Institute
    5. [NORA names: Danish Technological Institute; GTS Institutes; Denmark; Europe, EU; Nordic; OECD]

Abstract

A method for the in-line application of Tunable Diode Laser Absorption Spectroscopy (TDLAS) for headspace oxygen sensing in flow-packed products is presented. This is one of the first automated, industrial application on food packaging samples of a well known spectroscopic technique.The developed instrument is discussed starting from its sensor design with details on the optical working principles to point out the peculiarities and application issues linked with this particular technique. A production line implementation of the sensor is then presented, based on a conveyor belt for automatic sampling. This device was also integrated with line automation in order to enable measurement on the full production. Both in-line and off-line instruments were validated against traditional, industry-standard invasive measurement techniques. The accuracy of the measurement applied to regular samples from production line was found better than 0.4% vol. O2.

Keywords

O2, absorption spectroscopy, accuracy, application issues, application of Tunable Diode Laser Absorption Spectroscopy, applications, automatic sampling, automation, belt, conveyor, conveyor belt, design, devices, diode laser absorption spectroscopy, evaluation, food, food packaging samples, gas, gas sensing, headspace, implementation, in-line, in-line applications, in-line system, industrial applications, instrument, invasive measurement techniques, issues, laser absorption spectroscopy, lines, measurement techniques, measurements, method, off-line instrument, oxygen sensing, packaging samples, peculiarities, principles, product line implementation, production, production line, samples, sensing, sensor, sensor design, spectroscopic techniques, spectroscopy, system, technique, tunable diode laser absorption spectroscopy, working principle

Funders

  • European Commission

Data Provider: Digital Science

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