PMID- 37430976 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230718 IS - 2304-8158 (Print) IS - 2304-8158 (Electronic) IS - 2304-8158 (Linking) VI - 11 IP - 20 DP - 2022 Oct 15 TI - Determination of Saffron Quality through a Multi-Analytical Approach. LID - 10.3390/foods11203227 [doi] LID - 3227 AB - Currently, the specifications for the assessment of saffron quality are contained in the ISO 3632 technical standard. This norm evaluates saffron quality through a UV-Vis spectrophotometric method and grades the spice into three commercial categories. However, numerous studies have highlighted several weaknesses and limitations of the ISO method. For this reason, a new multi-analytical approach for the determination of saffron quality is proposed in this work. Different techniques were employed to assess saffron quality: UV-visible spectroscopy (UV-Vis), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDX) and inductively coupled plasma-optical emission spectroscopy (ICP-OES). The results show that the commercial grading based on the ISO 3632 methodology is not always in line with the observations made with the other techniques. Moreover, the use of two new techniques in the field of saffron quality determination, i.e., SEM-EDX and ICP-OES, proved to be effective for the determination of elemental composition and metal content, which are two important parameters to take into consideration when assessing the quality of the spice. FAU - Bergomi, Andrea AU - Bergomi A AUID- ORCID: 0000-0002-1587-4240 AD - Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milano, Italy. FAU - Comite, Valeria AU - Comite V AUID- ORCID: 0000-0002-9716-0080 AD - Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milano, Italy. FAU - Santagostini, Laura AU - Santagostini L AUID- ORCID: 0000-0002-1824-1617 AD - Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milano, Italy. FAU - Guglielmi, Vittoria AU - Guglielmi V AUID- ORCID: 0000-0002-7531-4536 AD - Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milano, Italy. FAU - Fermo, Paola AU - Fermo P AUID- ORCID: 0000-0003-2176-9188 AD - Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milano, Italy. LA - eng PT - Journal Article DEP - 20221015 PL - Switzerland TA - Foods JT - Foods (Basel, Switzerland) JID - 101670569 PMC - PMC9601413 OTO - NOTNLM OT - ATR-FTIR OT - ICP-OES OT - SEM-EDX OT - UV-vis spectroscopy OT - food quality OT - saffron COIS- The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. EDAT- 2023/07/11 06:42 MHDA- 2023/07/11 06:43 PMCR- 2022/10/15 CRDT- 2023/07/11 01:04 PHST- 2022/07/25 00:00 [received] PHST- 2022/09/02 00:00 [revised] PHST- 2022/10/12 00:00 [accepted] PHST- 2023/07/11 06:43 [medline] PHST- 2023/07/11 06:42 [pubmed] PHST- 2023/07/11 01:04 [entrez] PHST- 2022/10/15 00:00 [pmc-release] AID - foods11203227 [pii] AID - foods-11-03227 [pii] AID - 10.3390/foods11203227 [doi] PST - epublish SO - Foods. 2022 Oct 15;11(20):3227. doi: 10.3390/foods11203227.