Legal blends between olive oil and other vegetable oils: Quantification of olive oil and identification of “virgin olive oils”, “refined olive oils” and “olive pomace oils”
The development of a standardized method for quantification of olive oil in legal blends with other vegetable oils is required for the marketing of these products according to the European Legislation and, therefore, to protect the consumer.In this paper triacylglycerols, fatty acids, waxes, squalen...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-08-01
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| Series: | Talanta Open |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666831921000096 |
| _version_ | 1819123615741771776 |
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| author | Giovanni Presti Salvatore Giuliano Eleonora Gulotta Maria Monfreda |
| author_facet | Giovanni Presti Salvatore Giuliano Eleonora Gulotta Maria Monfreda |
| author_sort | Giovanni Presti |
| collection | DOAJ |
| description | The development of a standardized method for quantification of olive oil in legal blends with other vegetable oils is required for the marketing of these products according to the European Legislation and, therefore, to protect the consumer.In this paper triacylglycerols, fatty acids, waxes, squalene and the total esterified sterols were analysed and processed by chemometrics tools. PCA highlighted a trend in separation of samples according to their percentage of olive oil. Quantification was done by PLS, giving a prediction error lower than 5% in a calibration range from 25% to 80% of olive oil. Therefore, the proposed method is suitable to resolve legal blends.Furthermore, although not yet required by the EU legislation, a method was developed for the identification of ''virgin olive oils'', ''refined olive oils'' and ''olive pomace oils'' in blends, using SIMCA; 86.67% of the external test set was correctly classified. |
| first_indexed | 2024-12-22T07:11:10Z |
| format | Article |
| id | doaj.art-b549c8eaeabf4e1aab0f56a3919fc7f9 |
| institution | Directory Open Access Journal |
| issn | 2666-8319 |
| language | English |
| last_indexed | 2024-12-22T07:11:10Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Talanta Open |
| spelling | doaj.art-b549c8eaeabf4e1aab0f56a3919fc7f92022-12-21T18:34:31ZengElsevierTalanta Open2666-83192021-08-013100039Legal blends between olive oil and other vegetable oils: Quantification of olive oil and identification of “virgin olive oils”, “refined olive oils” and “olive pomace oils”Giovanni Presti0Salvatore Giuliano1Eleonora Gulotta2Maria Monfreda3Chemical Laboratory of Palermo, Italian Customs and Monopolies Agency, via Crispi, 143 - 90133 Palermo, ItalyChemical Laboratory of Palermo, Italian Customs and Monopolies Agency, via Crispi, 143 - 90133 Palermo, ItalyChemical Laboratory of Palermo, Italian Customs and Monopolies Agency, via Crispi, 143 - 90133 Palermo, ItalyCentral Directorate Antifraud and Controls, Laboratories Office, Italian Customs and Monopolies Agency, via M. Carucci 71, 00143 Rome, Italy; Corresponding author.The development of a standardized method for quantification of olive oil in legal blends with other vegetable oils is required for the marketing of these products according to the European Legislation and, therefore, to protect the consumer.In this paper triacylglycerols, fatty acids, waxes, squalene and the total esterified sterols were analysed and processed by chemometrics tools. PCA highlighted a trend in separation of samples according to their percentage of olive oil. Quantification was done by PLS, giving a prediction error lower than 5% in a calibration range from 25% to 80% of olive oil. Therefore, the proposed method is suitable to resolve legal blends.Furthermore, although not yet required by the EU legislation, a method was developed for the identification of ''virgin olive oils'', ''refined olive oils'' and ''olive pomace oils'' in blends, using SIMCA; 86.67% of the external test set was correctly classified.http://www.sciencedirect.com/science/article/pii/S2666831921000096Olive oilLegal blendPrincipal component analysisSoft independent models of class analogyPartial least squares |
| spellingShingle | Giovanni Presti Salvatore Giuliano Eleonora Gulotta Maria Monfreda Legal blends between olive oil and other vegetable oils: Quantification of olive oil and identification of “virgin olive oils”, “refined olive oils” and “olive pomace oils” Talanta Open Olive oil Legal blend Principal component analysis Soft independent models of class analogy Partial least squares |
| title | Legal blends between olive oil and other vegetable oils: Quantification of olive oil and identification of “virgin olive oils”, “refined olive oils” and “olive pomace oils” |
| title_full | Legal blends between olive oil and other vegetable oils: Quantification of olive oil and identification of “virgin olive oils”, “refined olive oils” and “olive pomace oils” |
| title_fullStr | Legal blends between olive oil and other vegetable oils: Quantification of olive oil and identification of “virgin olive oils”, “refined olive oils” and “olive pomace oils” |
| title_full_unstemmed | Legal blends between olive oil and other vegetable oils: Quantification of olive oil and identification of “virgin olive oils”, “refined olive oils” and “olive pomace oils” |
| title_short | Legal blends between olive oil and other vegetable oils: Quantification of olive oil and identification of “virgin olive oils”, “refined olive oils” and “olive pomace oils” |
| title_sort | legal blends between olive oil and other vegetable oils quantification of olive oil and identification of virgin olive oils refined olive oils and olive pomace oils |
| topic | Olive oil Legal blend Principal component analysis Soft independent models of class analogy Partial least squares |
| url | http://www.sciencedirect.com/science/article/pii/S2666831921000096 |
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