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Sikorska E, Wójcicki K, Kozak W, Gliszczyńska-Świgło A, Khmelinskii I, Górecki T, Caponio F, Paradiso VM, Summo C, Pasqualone A. Front-Face Fluorescence Spectroscopy and Chemometrics for Quality Control of Cold-Pressed Rapeseed Oil During Storage. Foods 2019; 8:foods8120665. [PMID: 31835617 PMCID: PMC6963837 DOI: 10.3390/foods8120665] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/04/2019] [Accepted: 12/05/2019] [Indexed: 12/31/2022] Open
Abstract
The aim of this study was to test the usability of fluorescence spectroscopy to evaluate the stability of cold-pressed rapeseed oil during storage. Freshly-pressed rapeseed oil was stored in colorless and green glass bottles exposed to light, and in darkness for a period of 6 months. The quality deterioration of oils was evaluated on the basis of several chemical parameters (peroxide value, acid value, K232 and K270, polar compounds, tocopherols, carotenoids, pheophytins, oxygen concentration) and fluorescence. Parallel factor analysis (PARAFAC) of oil excitation-emission matrices revealed the presence of four fluorophores that showed different evolution throughout the storage period. The fluorescence study provided direct information about tocopherol and pheophytin degradation and revealed formation of a new fluorescent product. Principal component analysis (PCA) performed on analytical and fluorescence data showed that oxidation was more advanced in samples exposed to light due to the photo-induced processes; only a very minor effect of the bottle color was observed. Multiple linear regression (MLR) and partial least squares regression (PLSR) on the PARAFAC scores revealed a quantitative relationship between fluorescence and some of the chemical parameters.
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Affiliation(s)
- Ewa Sikorska
- Institute of Quality Science, Poznań University of Economics and Business, al. Niepodległości 10, 61-875 Poznań, Poland
- Correspondence:
| | - Krzysztof Wójcicki
- Institute of Quality Science, Poznań University of Economics and Business, al. Niepodległości 10, 61-875 Poznań, Poland
| | - Wojciech Kozak
- Institute of Quality Science, Poznań University of Economics and Business, al. Niepodległości 10, 61-875 Poznań, Poland
| | - Anna Gliszczyńska-Świgło
- Institute of Quality Science, Poznań University of Economics and Business, al. Niepodległości 10, 61-875 Poznań, Poland
| | - Igor Khmelinskii
- Department of Chemistry and Pharmacy and Center of Electronics, Optoelectronics and Telecommunications, Faculty of Science and Technology, University of the Algarve, FCT, DQF and CEOT, Campus de Gambelas, 8005-139 Faro, Portugal
| | - Tomasz Górecki
- Faculty of Mathematics and Computer Science, Adam Mickiewicz University, Uniwersytetu Poznańskiego 4, 61-614 Poznań, Poland
| | - Francesco Caponio
- Food Science and Technology Unit, Department of Soil, Plant and Food Sciences, University of Bari, via Amendola 165/a, I-70126 Bari, Italy
| | - Vito M. Paradiso
- Food Science and Technology Unit, Department of Soil, Plant and Food Sciences, University of Bari, via Amendola 165/a, I-70126 Bari, Italy
| | - Carmine Summo
- Food Science and Technology Unit, Department of Soil, Plant and Food Sciences, University of Bari, via Amendola 165/a, I-70126 Bari, Italy
| | - Antonella Pasqualone
- Food Science and Technology Unit, Department of Soil, Plant and Food Sciences, University of Bari, via Amendola 165/a, I-70126 Bari, Italy
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Sánchez RJ, Fernández MB, Nolasco SM. Hexane‐Free Green Solvent Extraction of Canola Oil From Microwave‐Pretreated Seeds and of Antioxidant‐Rich Byproducts. EUR J LIPID SCI TECH 2018. [DOI: 10.1002/ejlt.201800209] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ramiro J. Sánchez
- TECSE, Facultad de IngenieríaUniversidad Nacional del Centro de la Provincia de Buenos AiresAvda del Valle 5737B7400JWIOlavarríaBuenos AiresArgentina
- CONICETComisión Nacional de Investigaciones Científicas y TécnicasBuenos AiresArgentina
| | - María B. Fernández
- TECSE, Facultad de IngenieríaUniversidad Nacional del Centro de la Provincia de Buenos AiresAvda del Valle 5737B7400JWIOlavarríaBuenos AiresArgentina
- CIFICENUniversidad Nacional del Centro de la Provincia de Buenos Aires − CONICET‐CICTandilArgentina
| | - Susana M. Nolasco
- TECSE, Facultad de IngenieríaUniversidad Nacional del Centro de la Provincia de Buenos AiresAvda del Valle 5737B7400JWIOlavarríaBuenos AiresArgentina
- CICComisión de Investigaciones Científicas de la Provincia de Buenos AiresBuenos AiresArgentina
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