title: Photostimulated luminescence detection and radiation effects on cinnamon (Cinnamomum zeylanicum) spice.
abstract: The increase of disease borne pathogens in foods has promoted the use of new technologies in order to eliminate these pathogen microorganisms and extend the shelf-life of the foodstuffs. In particular, Cinnamon (Cinnamomum zeylanicum) contains an important number of pathogen microorganisms and it is frequently sterilized by gamma radiation. However, it is important to develop the detection methods for irradiated food in order to keep the dose control and also to analyze the radiation effects in their chemical property. This work reports (i) the photostimulated luminescence (PSL) detection of irradiated cinnamon and thermoluminescence (TL) detection of the inorganic polymineral fraction separated from this spice, and (ii) the proximate chemical analysis carried out on fat, protein and dietetic fiber contents. The detection limits using the PSL and TL methods were 500 Gy and 10 Gy, respectively, and the fat content was increased significantly with the gamma dose that could be related to the lipid oxidation in the cinnamon.
authors.affiliation: Instituto de Física Arroyo Seco - CIFICEN (CONICET - UNCPBA), Pinto 399, 7000 Tandil, Argentina. Electronic address: jmarcass@exa.unicen.edu.ar.
authors.forename: J
authors.initials: J
authors.lastname: Marcazzó
authors.affiliation: Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, 04510 México D.F., México.
authors.forename: C E
authors.initials: CE
authors.lastname: Sanchez-Barrera
authors.affiliation: Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, 04510 México D.F., México.
authors.forename: A
authors.initials: A
authors.lastname: Urbina-Zavala
authors.affiliation: Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, 04510 México D.F., México.
authors.forename: E
authors.initials: E
authors.lastname: Cruz-Zaragoza
mesh_terms: D002935:Cinnamomum zeylanicum / Q000737:chemistry* / Q000528:radiation effects*; D005504:Food Analysis / Q000379:methods; D005511:Food Handling / Q000379:methods; D011829:Radiation Dosage; D017365:Spices / Q000032:analysis* / Q000528:radiation effects*; D013242:Sterilization / Q000379:methods*; D013819:Thermoluminescent Dosimetry / Q000379:methods*
keywords: Cinnamon; Gamma dose; Irradiated food; Photostimulated luminescence; Thermoluminescence