PMID- 36435104 OWN - NLM STAT- MEDLINE DCOM- 20221206 LR - 20221206 IS - 1873-7072 (Electronic) IS - 0308-8146 (Linking) VI - 405 IP - Pt B DP - 2023 Mar 30 TI - Discrimination on potential adulteration of extra virgin olive oils consumed in China by differential scanning calorimeter combined with dimensionality reduction classification techniques. PG - 134996 LID - S0308-8146(22)02958-2 [pii] LID - 10.1016/j.foodchem.2022.134996 [doi] AB - Thermal properties of extra virgin olive oil (EVOO) consumed in China were investigated through differential scanning calorimetry (DSC), Principal Component Analysis (PCA) dimension reduction analysis combined with K-nearest neighbors (KNN) and support vector machine (SVM) models were used to determine whether oil samples would be EVOO. Both models exhibited a 100% ability to distinguish EVOO from non-EVOO. Additionally, the discrimination test of canola oil was still limited from EVOO adulteration due to its similarity of cooling profiles with EVOO. Canola oil was artificially added into EVOO in 5%, 10%, 20% and 30% and DSC test results collected were detected in computer models. Both models effectively identified even 5% canola oil adulterated in EVOO; however, KNN (93.75%) model exhibited much higher accuracy than SVM (43.92%). In conclusion, DSC combined with KMN model analysis was more available for the adulteration detection of EVOO. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Huang, Kaiyuan AU - Huang K AD - Food Science and Technology Program, Department of Life Sciences, BNU-HKBU United International College, Zhuhai, China; Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China. FAU - Zhong, Peihao AU - Zhong P AD - Food Science and Technology Program, Department of Life Sciences, BNU-HKBU United International College, Zhuhai, China; Artificial Intelligence Program, The University of Edinburgh, Edinburgh, United Kingdom. FAU - Xu, Baojun AU - Xu B AD - Food Science and Technology Program, Department of Life Sciences, BNU-HKBU United International College, Zhuhai, China. Electronic address: baojunxu@uic.edu.cn. LA - eng PT - Journal Article DEP - 20221119 PL - England TA - Food Chem JT - Food chemistry JID - 7702639 RN - 0 (Rapeseed Oil) RN - 0 (Olive Oil) SB - IM MH - Rapeseed Oil MH - Olive Oil MH - China MH - *Drug Contamination MH - Calorimetry, Differential Scanning OTO - NOTNLM OT - Adulteration OT - Edible oil OT - Extra virgin olive oil OT - K-nearest neighbors model OT - Principal component analysis COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/11/27 06:00 MHDA- 2022/12/07 06:00 CRDT- 2022/11/26 18:32 PHST- 2022/08/27 00:00 [received] PHST- 2022/11/13 00:00 [revised] PHST- 2022/11/15 00:00 [accepted] PHST- 2022/11/27 06:00 [pubmed] PHST- 2022/12/07 06:00 [medline] PHST- 2022/11/26 18:32 [entrez] AID - S0308-8146(22)02958-2 [pii] AID - 10.1016/j.foodchem.2022.134996 [doi] PST - ppublish SO - Food Chem. 2023 Mar 30;405(Pt B):134996. doi: 10.1016/j.foodchem.2022.134996. Epub 2022 Nov 19.