title: Spectroscopy analysis of phenolic and sugar patterns in a food grade chestnut tannin.
abstract: Tannin of chestnut (Castanea sativa Mill.) wood, commonly used in winemaking was characterised with a spectroscopy qualitative approach that revealed its phenolic composition: several vibrational diagnostic bands assigned using the Attenuated Total Reflectance-Infrared Spectroscopy, and fragmentation patterns obtained using the Laser-Desorption-Ionization Time-of-Flight technique evidenced polygalloylglucose, e.g. castalagin/vescalagin-like structures as the most representative molecules, together with sugar moieties. The implication of these findings on winemaking application and the potential influence of the chemical structure on the sensory properties of wine are discussed.
authors.affiliation: Department of Agricultural and Food Sciences, University of Bologna, Piazza Goidanich 60, Cesena (FC) 47521, Italy. Electronic address: arianna.ricci4@unibo.it.
authors.forename: A
authors.initials: A
authors.lastname: Ricci
authors.affiliation: LERMAB, Nancy University, 27 rue du Merle Blanc, BP 1041, 88051 Epinal, France.
authors.forename: M-C
authors.initials: MC
authors.lastname: Lagel
authors.affiliation: Department of Agricultural and Food Sciences, University of Bologna, Piazza Goidanich 60, Cesena (FC) 47521, Italy.
authors.forename: G P
authors.initials: GP
authors.lastname: Parpinello
authors.affiliation: LERMAB, Nancy University, 27 rue du Merle Blanc, BP 1041, 88051 Epinal, France; Department of Physics, King Abdulaziz University, Jeddah, Saudi Arabia.
authors.forename: A
authors.initials: A
authors.lastname: Pizzi
authors.affiliation: School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
authors.forename: P A
authors.initials: PA
authors.lastname: Kilmartin
authors.affiliation: Department of Agricultural and Food Sciences, University of Bologna, Piazza Goidanich 60, Cesena (FC) 47521, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Versari
mesh_terms: D001578:Benzopyrans / Q000032:analysis; D004040:Dietary Carbohydrates / Q000032:analysis*; D029962:Fagaceae / Q000737:chemistry*; D009754:Nuts / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D017550:Spectroscopy, Fourier Transform Infrared; D013634:Tannins / Q000032:analysis*; D014920:Wine / Q000032:analysis*; D014934:Wood / Q000737:chemistry
chemical_list: D001578:Benzopyrans; D004040:Dietary Carbohydrates; D010636:Phenols; D013634:Tannins
keywords: ATR-FTIR; Castanea sativa Mill; MALDI-TOF; Oenological tannins; Sugars