Rapid and Automated Method for Detecting and Quantifying Adulterations in High-Quality Honey Using Vis-NIRs in Combination with Machine Learning

Honey is one of the most adulterated foods, usually through the addition of sweeteners or low-cost honeys. This study presents a method based on visible near infrared spectroscopy (Vis-NIRs), in combination with machine learning (ML) algorithms, for the correct identification and quantification of a...

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Main Authors: José Luis P. Calle, Irene Punta-Sánchez, Ana Velasco González-de-Peredo, Ana Ruiz-Rodríguez, Marta Ferreiro-González, Miguel Palma
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/12/13/2491
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author José Luis P. Calle
Irene Punta-Sánchez
Ana Velasco González-de-Peredo
Ana Ruiz-Rodríguez
Marta Ferreiro-González
Miguel Palma
author_facet José Luis P. Calle
Irene Punta-Sánchez
Ana Velasco González-de-Peredo
Ana Ruiz-Rodríguez
Marta Ferreiro-González
Miguel Palma
author_sort José Luis P. Calle
collection DOAJ
description Honey is one of the most adulterated foods, usually through the addition of sweeteners or low-cost honeys. This study presents a method based on visible near infrared spectroscopy (Vis-NIRs), in combination with machine learning (ML) algorithms, for the correct identification and quantification of adulterants in honey. Honey samples from two botanical origins (orange blossom and sunflower) were evaluated and adulterated with low-cost honey in different percentages (5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, and 50%). The results of the exploratory analysis showed a tendency to group the samples according to botanical origin, as well as the presence of adulteration. A supervised analysis was performed to detect the presence of adulterations. The best performance with 100% accuracy was achieved by support vector machines (SVM) and random forests (RF). A regression study was also carried out to quantify the percentage of adulteration. The best result was obtained by support vector regression (SVR) with a coefficient of determination (R<sup>2</sup>) of 0.991 and a root mean squared error (RMSE) of 1.894. These results demonstrate the potential of combining ML with spectroscopic data as a method for the automated quality control of honey.
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spelling doaj.art-0e1f42728b1f4ac49761a699fb59b43b2023-11-18T16:33:17ZengMDPI AGFoods2304-81582023-06-011213249110.3390/foods12132491Rapid and Automated Method for Detecting and Quantifying Adulterations in High-Quality Honey Using Vis-NIRs in Combination with Machine LearningJosé Luis P. Calle0Irene Punta-Sánchez1Ana Velasco González-de-Peredo2Ana Ruiz-Rodríguez3Marta Ferreiro-González4Miguel Palma5Department of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), IVAGRO, 11510 Puerto Real, SpainDepartment of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), IVAGRO, 11510 Puerto Real, SpainDepartment of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), IVAGRO, 11510 Puerto Real, SpainDepartment of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), IVAGRO, 11510 Puerto Real, SpainDepartment of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), IVAGRO, 11510 Puerto Real, SpainDepartment of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), IVAGRO, 11510 Puerto Real, SpainHoney is one of the most adulterated foods, usually through the addition of sweeteners or low-cost honeys. This study presents a method based on visible near infrared spectroscopy (Vis-NIRs), in combination with machine learning (ML) algorithms, for the correct identification and quantification of adulterants in honey. Honey samples from two botanical origins (orange blossom and sunflower) were evaluated and adulterated with low-cost honey in different percentages (5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, and 50%). The results of the exploratory analysis showed a tendency to group the samples according to botanical origin, as well as the presence of adulteration. A supervised analysis was performed to detect the presence of adulterations. The best performance with 100% accuracy was achieved by support vector machines (SVM) and random forests (RF). A regression study was also carried out to quantify the percentage of adulteration. The best result was obtained by support vector regression (SVR) with a coefficient of determination (R<sup>2</sup>) of 0.991 and a root mean squared error (RMSE) of 1.894. These results demonstrate the potential of combining ML with spectroscopic data as a method for the automated quality control of honey.https://www.mdpi.com/2304-8158/12/13/2491honeyadulterationmachine learningvisible near infrared spectroscopysupport vector machinerandom forest
spellingShingle José Luis P. Calle
Irene Punta-Sánchez
Ana Velasco González-de-Peredo
Ana Ruiz-Rodríguez
Marta Ferreiro-González
Miguel Palma
Rapid and Automated Method for Detecting and Quantifying Adulterations in High-Quality Honey Using Vis-NIRs in Combination with Machine Learning
Foods
honey
adulteration
machine learning
visible near infrared spectroscopy
support vector machine
random forest
title Rapid and Automated Method for Detecting and Quantifying Adulterations in High-Quality Honey Using Vis-NIRs in Combination with Machine Learning
title_full Rapid and Automated Method for Detecting and Quantifying Adulterations in High-Quality Honey Using Vis-NIRs in Combination with Machine Learning
title_fullStr Rapid and Automated Method for Detecting and Quantifying Adulterations in High-Quality Honey Using Vis-NIRs in Combination with Machine Learning
title_full_unstemmed Rapid and Automated Method for Detecting and Quantifying Adulterations in High-Quality Honey Using Vis-NIRs in Combination with Machine Learning
title_short Rapid and Automated Method for Detecting and Quantifying Adulterations in High-Quality Honey Using Vis-NIRs in Combination with Machine Learning
title_sort rapid and automated method for detecting and quantifying adulterations in high quality honey using vis nirs in combination with machine learning
topic honey
adulteration
machine learning
visible near infrared spectroscopy
support vector machine
random forest
url https://www.mdpi.com/2304-8158/12/13/2491
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