INVESTIGADORES
WUNDERLIN Daniel Alberto
artículos
Título:
Linking soil, water and honey composition to assess the geographical origin of Argentinean honey by multielemental and isotopic analyses.
Autor/es:
BARONI, M.V.; PODIO, N.S.; BADINI, R.; INGA, C.M.; OSTERA, H.; CAGNONI, M.; GAUTIER, E.; PERAL-GARCIA, P.; HOOGEWERFF, J.; WUNDERLIN D.A.
Revista:
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Editorial:
AMER CHEMICAL SOC
Referencias:
Lugar: Washington; Año: 2015 vol. 63 p. 4638 - 4645
ISSN:
0021-8561
Resumen:
The aim of this study was to investigate if elemental and isotopic signatures of Argentinean  honey can be used to develop a reliable fingerprint to assess its geographical provenance.  Honey, soil and water from three regions (Córdoba, Buenos Aires and Entre Ríos) were collected. The multi-elemental composition was determined by ICP-MS. δ1329 C wasmeasured by isotopic ratio mass spectrometry, while 87Sr/8630 Sr ratio was determined using thermal ionization mass spectrometry. The data were analyzed by chemometrics looking for the association between the elements, stable isotopes and honey samples from three studied areas. Honey samples were differentiated by classification trees and discriminant analysis using a combination of 8 key variables (Rb, K/Rb, B, U, 87Sr/8634 Sr, Na, La and Zn), presenting differences among the studied regions. The application of canonical correlation analysis and generalized procrustes analysis showed 91.5% consensus between soil, water and honey samples, in addition to clear differences between studied areas. To our knowledge, this is the first report demonstrating the correspondence between soil, water and honey samples using different statistical methods, showing that elemental and isotopic honey compositions are related to soil and water characteristics of the site of origin.