title: Classification of pumpkin seed oils according to their species and genetic variety by attenuated total reflection Fourier-transform infrared spectroscopy.
abstract: Attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR), followed by multivariate treatment of the spectral data, was used to classify seed oils of the genus Cucurbita (pumpkins) according to their species as C. maxima, C. pepo, and C. moschata. Also, C. moschata seed oils were classified according to their genetic variety as RG, Inivit C-88, and Inivit C-2000. Up to 23 wavelength regions were selected on the spectra, each region corresponding to a peak or shoulder. The normalized absorbance peak areas within these regions were used as predictors. Using linear discriminant analysis (LDA), an excellent resolution among all categories concerning both Cucurbita species and C. moschata varieties was achieved. The proposed method was straightforward and quick and can be easily implemented. Quality control of pumpkin seed oils is important because Cucurbita species and genetic variety are both related to the pharmaceutical properties of the oils.
authors.affiliation: Pharmacy Department, Faculty of Chemistry, Central University Marta Abreu of Las Villas, Santa Clara, Cuba.
authors.forename: Yanelis
authors.initials: Y
authors.lastname: Saucedo-Hernández
authors.forename: María Jesús
authors.initials: MJ
authors.lastname: Lerma-García
authors.forename: José Manuel
authors.initials: JM
authors.lastname: Herrero-Martínez
authors.forename: Guillermo
authors.initials: G
authors.lastname: Ramis-Ramos
authors.forename: Elisa
authors.initials: E
authors.lastname: Jorge-Rodríguez
authors.forename: Ernesto F
authors.initials: EF
authors.lastname: Simí-Alfonso
mesh_terms: D028464:Cucurbita / Q000196:embryology* / Q000235:genetics; D016002:Discriminant Analysis; D010938:Plant Oils / Q000145:classification*; D012639:Seeds / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*
chemical_list: D010938:Plant Oils