title: Chemometrical characterization of four italian rice varieties based on genetic and chemical analyses.
abstract: This paper describes a method for achieving qualitative identification of four rice varieties from two different Italian regions. To estimate the presence of genetic diversity among the four rice varieties, we used polymerase chain reaction-randomly amplified polymorphic DNA (PCR-RAPD) markers, and to elucidate whether a relationship exists between the ground and the specific characteristics of the product, we studied proximate composition, fatty acid composition, mineral content, and total antioxidant capacity. Using principal component analysis on genomic and compositional data, we were able to classify rice samples according to their variety and their district of production. This work also examined the discrimination ability of different parameters. It was found that genomic data give the best discrimination based on varieties, indicating that RAPD assays could be useful in discriminating among closely related species, while compositional analyses do not depend on the genetic characters only but are related to the production area.
authors.affiliation: Department of Pharmaceutical Science, University of Ferrara, Via Fossato di Mortara 17/19, 44100 Ferrara, Italy.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Brandolini
authors.forename: Jean Daniel
authors.initials: JD
authors.lastname: Coïsson
authors.forename: Paola
authors.initials: P
authors.lastname: Tedeschi
authors.forename: Daniela
authors.initials: D
authors.lastname: Barile
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Cereti
authors.forename: Annalisa
authors.initials: A
authors.lastname: Maietti
authors.forename: Giorgio
authors.initials: G
authors.lastname: Vecchiati
authors.forename: Aldo
authors.initials: A
authors.lastname: Martelli
authors.forename: Marco
authors.initials: M
authors.lastname: Arlorio
mesh_terms: D000975:Antioxidants / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D007558:Italy; D008903:Minerals / Q000032:analysis; D012275:Oryza / Q000737:chemistry* / Q000235:genetics* / Q000254:growth & development; D019105:Random Amplified Polymorphic DNA Technique; D012639:Seeds / Q000737:chemistry
chemical_list: D000975:Antioxidants; D005227:Fatty Acids; D008903:Minerals