Enhancing lycopene analysis in microwave-vacuum dried tomato snack bars by NIR spectra and hyperspectral imaging

Date

2024-06-19

Author

Gül, Muhammed Rasim
Gülenç, Barış Ege
Eriklioğlu, Hilmi
Taş, Ozan
Öztop, Halil Mecit

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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The demand for healthy snacks requires examining lycopene levels in tomato products. Lycopene is an essential antioxidant that significantly adds to the nutritional value of these snacks. A study evaluated three methods for lycopene analysis in tomato snack bars: NIR spectra, hyperspectral imaging, and chemical analysis. This research will improve lycopene analysis in tomato-based snacks. Tomatoes were treated at 85°C for 3 minutes, then combined with pectin, protein, tomato powder, salt, and spices to make bars. The bars were chilled daily and dried in a microwave-vacuum dryer at 60% power for 10 minutes. We used non-destructive spectroscopy to measure lycopene levels in tomato snack bars by examining their NIR spectra. This method is fast and allows for real-time monitoring during production, which assures the preservation of product quality. We also used hyperspectral imaging to capture detailed spectral information across the snack bars. This method offers spatial resolution, which enables a thorough analysis of lycopene distribution within the product. To compare our techniques, we established a standard reference through traditional chemical analysis. This involved rigorous lycopene extraction and quantification, which provided a benchmark for comparing the new methods. Through a comparative analysis, we gained valuable insights into the effectiveness of each method. The use of NIR spectra allowed for rapid assessments, which showed a promising correlation with traditional chemical analysis. Hyperspectral imaging, on the other hand, provided detailed spatial data that uncovered variations in lycopene distribution. Although the traditional chemical analysis was timeconsuming and destructive, it did establish a reliable baseline for lycopene quantification. Our research suggests that NIR spectra and hyperspectral imaging can replace traditional chemical analysis for tomato snack bars' lycopene levels. This can modernize quality control in snacks, fostering innovation and better nutrition. This study has received funding from the European Union's Horizon 2020– PRIMA Section I Program under grant agreement # 2032 (FunTomP).Keywords: Lycopene Analysis, Tomato Snack Bars, NIR Spectra, Hyperspectral Imaging

URI

https://hdl.handle.net/11511/118200

Collections

Department of Food Engineering, Conference / Seminar