{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T06:46:16Z","timestamp":1785739576503,"version":"3.56.0"},"reference-count":32,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Given the scarce data in the literature regarding the lanthanide content of Greek monofloral honey, Sc (Scandium), Y (Yttrium), La (Lanthanum), Ce (Cerium), Pr (Praseodymium), Nd (Neodymium), Sm (Samarium), Eu (Europium), Gd (Gadolinium), Tb (Terbium), Dy (Dysprosium), Ho (Holmium), Er (Erbium), Tm (Thulium), Yb (Ytterbium), Lu (Lutetium) and Th (Thorium) were determined in honeydew and nectar honey, using inductively coupled plasma mass spectrometry (ICP-MS). Results showed that, in general, honeydew honey had a higher lanthanide content than nectar honey, even though the determined values were below the limit of quantification. Preliminary reference values in this case for pine honey were Ce (26.82 \u00b1 21.49 ng\/L) and La (15.25 \u00b1 11.82 ng\/L). Adulteration testing was also performed using elemental analysis coupled to isotope ratio mass spectrometry (EA-IRMS), where no adulteration with cheap sugars was detected. Factor analysis identified the principal lanthanides related to honey botanical origin, basically Ce, and the k-NN algorithm classified the samples, achieving a training classification rate of 81.8% and a hold-out classification rate of 76.5%. Even in low amounts, lanthanides may contribute to the botanical origin identification of monofloral honey.<\/jats:p>","DOI":"10.3390\/molecules31152685","type":"journal-article","created":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T06:17:40Z","timestamp":1785737860000},"page":"2685","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Lanthanide Content and Adulteration Testing of Greek Honeydew and Nectar Honey"],"prefix":"10.3390","volume":"31","author":[{"given":"Eleni C.","family":"Mazarakioti","sequence":"first","affiliation":[{"name":"Department of Food Science & Technology, School of Agricultural Sciences, University of Patras, G. Seferi 2, 30100 Agrinio, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vassilios K.","family":"Karabagias","sequence":"additional","affiliation":[{"name":"Department of Food Science & Technology, School of Agricultural Sciences, University of Patras, G. Seferi 2, 30100 Agrinio, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sofia","family":"Karabournioti","sequence":"additional","affiliation":[{"name":"Attiki Bee Culturing Co.\u2014Alex. Pittas S.A., 9 Protomagias Street, Kryoneri, 14568 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-8995-6673","authenticated-orcid":false,"given":"Dimitrios G.","family":"Lazaridis","sequence":"additional","affiliation":[{"name":"Department of Food Science & Technology, School of Agricultural Sciences, University of Patras, G. Seferi 2, 30100 Agrinio, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6429-1842","authenticated-orcid":false,"given":"Anastasios","family":"Zotos","sequence":"additional","affiliation":[{"name":"Department of Sustainable Agriculture, University of Patras, G. Seferi 2, 30100 Agrinio, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6439-2734","authenticated-orcid":false,"given":"Angelos","family":"Patakas","sequence":"additional","affiliation":[{"name":"Department of Food Science & Technology, School of Agricultural Sciences, University of Patras, G. Seferi 2, 30100 Agrinio, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7802-8781","authenticated-orcid":false,"given":"Athanasios","family":"Ladavos","sequence":"additional","affiliation":[{"name":"Department of Food Science & Technology, School of Agricultural Sciences, University of Patras, G. Seferi 2, 30100 Agrinio, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3488-2684","authenticated-orcid":false,"given":"Ioannis K.","family":"Karabagias","sequence":"additional","affiliation":[{"name":"Department of Food Science & Technology, School of Agricultural Sciences, University of Patras, G. Seferi 2, 30100 Agrinio, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,1]]},"reference":[{"key":"ref_1","unstructured":"European Union (2002). Council Directive 2001\/110\/EC of 20 December 2001 relating to honey. 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