title: Application of Tunable Diode Laser Spectroscopy for the Assessment of Food Quality.
abstract: Adequate food packaging is important to ensure food quality and prolong the shelf life of food. Frequently, the method of modified atmosphere packaging (MAP) is used. We used a tunable diode laser spectroscopy technique to detect the oxygen content in food packages, e.g., in packaged milk and bread. Different detection geometries were adopted to be able to collect scattering light that had passed through the gas volume in the packages, and to avoid the disturbance of ambient air. Furthermore, studies of the bread-baking process have been performed by measuring the water vapor signals in a fermenting dough. The results demonstrate that the technique has a great potential for nonintrusive assessment of food quality and the bread-baking process.
authors.affiliation: 1 Center of Optical and Electromagnetic Research, South China Normal University, University City Campus, Guangzhou, China.
authors.forename: Tianqi
authors.initials: T
authors.lastname: Li
authors.affiliation: 1 Center of Optical and Electromagnetic Research, South China Normal University, University City Campus, Guangzhou, China.
authors.forename: Huiying
authors.initials: H
authors.lastname: Lin
authors.affiliation: 1 Center of Optical and Electromagnetic Research, South China Normal University, University City Campus, Guangzhou, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Zhang
authors.affiliation: 1 Center of Optical and Electromagnetic Research, South China Normal University, University City Campus, Guangzhou, China.|2 Lund Laser Center, Lund University, Lund, Sweden.
authors.forename: Katarina
authors.initials: K
authors.lastname: Svanberg
authors.affiliation: 1 Center of Optical and Electromagnetic Research, South China Normal University, University City Campus, Guangzhou, China.|2 Lund Laser Center, Lund University, Lund, Sweden.
authors.forename: Sune
authors.initials: S
authors.lastname: Svanberg
mesh_terms: D001939:Bread / Q000032:analysis; D005285:Fermentation; D005504:Food Analysis / Q000379:methods*; D018857:Food Packaging; D063427:Food Quality; D013057:Spectrum Analysis / Q000379:methods*; D013227:Steam / Q000032:analysis
chemical_list: D013227:Steam
keywords: GASMAS; Tunable diode laser spectroscopy; absorption spectroscopy; food safety; gas in scattering media absorption spectroscopy