An international project developed, quality-tested, and measured isotope−delta values of 10 new food matrix reference materials (RMs) for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements to support food authenticity testing and food provenance verification. These new RMs, USGS82 to USGS91, will enable users to normalize measurements of samples to isotope−delta scales. The RMs include (i) two honeys from Canada and tropical Vietnam, (ii) two flours from C3 (rice) and C4 (millet) plants, (iii) four vegetable oils from C3 (olive, peanut) and C4 (corn) plants, and (iv) two collagen powders from marine fish and terrestrial mammal origins. An errors-in-variables regression model included the uncertainty associated with the measured and assigned values of the RMs, and it was applied centrally to normalize results and obtain consensus values and measurement uncertainties. Utilization of these new RMs should facilitate mutual compatibility of stable isotope data if accepted normalization procedures are applied and documented.

Food matrix reference materials for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements: collagens, flours, honeys, and vegetable oils / Schimmelmann, A.; Qi, H.; Dunn, P. J. H.; Camin, F.; Bontempo, L.; Potočnik, D.; Ogrinc, N.; Kelly, S.; Carter, J. F.; Abrahim, A.; Reid, L. T.; Coplen, T. B.. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - 68:39(2020), pp. 10852-10864. [10.1021/acs.jafc.0c02610]

Food matrix reference materials for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements: collagens, flours, honeys, and vegetable oils

Camin F.;
2020-01-01

Abstract

An international project developed, quality-tested, and measured isotope−delta values of 10 new food matrix reference materials (RMs) for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements to support food authenticity testing and food provenance verification. These new RMs, USGS82 to USGS91, will enable users to normalize measurements of samples to isotope−delta scales. The RMs include (i) two honeys from Canada and tropical Vietnam, (ii) two flours from C3 (rice) and C4 (millet) plants, (iii) four vegetable oils from C3 (olive, peanut) and C4 (corn) plants, and (iv) two collagen powders from marine fish and terrestrial mammal origins. An errors-in-variables regression model included the uncertainty associated with the measured and assigned values of the RMs, and it was applied centrally to normalize results and obtain consensus values and measurement uncertainties. Utilization of these new RMs should facilitate mutual compatibility of stable isotope data if accepted normalization procedures are applied and documented.
2020
39
Schimmelmann, A.; Qi, H.; Dunn, P. J. H.; Camin, F.; Bontempo, L.; Potočnik, D.; Ogrinc, N.; Kelly, S.; Carter, J. F.; Abrahim, A.; Reid, L. T.; Coplen, T. B.
Food matrix reference materials for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements: collagens, flours, honeys, and vegetable oils / Schimmelmann, A.; Qi, H.; Dunn, P. J. H.; Camin, F.; Bontempo, L.; Potočnik, D.; Ogrinc, N.; Kelly, S.; Carter, J. F.; Abrahim, A.; Reid, L. T.; Coplen, T. B.. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - 68:39(2020), pp. 10852-10864. [10.1021/acs.jafc.0c02610]
File in questo prodotto:
File Dimensione Formato  
acs.jafc.0c02610.pdf

Solo gestori archivio

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 3.37 MB
Formato Adobe PDF
3.37 MB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/280061
Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 18
  • ???jsp.display-item.citation.isi??? 18
social impact