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Article

Rapid Authentication of Potato Chip Oil by Vibrational Spectroscopy Combined with Pattern Recognition Analysis

1
Department of Food Science and Technology, The Ohio State University, 110 Parker Food Science and Technology Building, 2015 Fyffe Road, Columbus, OH 43210, USA
2
Department of Food Engineering, Faculty of Engineering, Adnan Menderes University, Aydin 09100, Turkey
*
Author to whom correspondence should be addressed.
Foods 2021, 10(1), 42; https://doi.org/10.3390/foods10010042
Received: 20 November 2020 / Revised: 17 December 2020 / Accepted: 21 December 2020 / Published: 25 December 2020
The objective of this study was to develop a rapid technique to authenticate potato chip frying oils using vibrational spectroscopy signatures in combination with pattern recognition analysis. Potato chip samples (n = 118) were collected from local grocery stores, and the oil was extracted by a hydraulic press and characterized by fatty acid profile determined by gas chromatography equipped with a flame ionization detector (GC-FID). Spectral data was collected by a handheld Raman system (1064 nm) and a miniature near-infrared (NIR) sensor, further being analyzed by SIMCA (Soft Independent Model of Class Analogies) and PLSR (Partial Least Square Regression) to develop classification algorithms and predict the fatty acid profile. Supervised classification by SIMCA predicted the samples with a 100% sensitivity based on the validation data. The PLSR showed a strong correlation (Rval > 0.97) and a low standard error of prediction (SEP = 1.08–3.55%) for palmitic acid, oleic acid, and linoleic acid. 11% of potato chips (n = 13) indicated a single oil in the label with a mislabeling problem. Our data supported that the new generation of portable vibrational spectroscopy devices provided an effective tool for rapid in-situ identification of oil type of potato chips in the market and for surveillance of accurate labeling of the products. View Full-Text
Keywords: rapid authentication; handheld Raman; NIR; fatty acid profile; oil qualification rapid authentication; handheld Raman; NIR; fatty acid profile; oil qualification
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MDPI and ACS Style

Yao, S.; Aykas, D.P.; Rodriguez-Saona, L. Rapid Authentication of Potato Chip Oil by Vibrational Spectroscopy Combined with Pattern Recognition Analysis. Foods 2021, 10, 42. https://doi.org/10.3390/foods10010042

AMA Style

Yao S, Aykas DP, Rodriguez-Saona L. Rapid Authentication of Potato Chip Oil by Vibrational Spectroscopy Combined with Pattern Recognition Analysis. Foods. 2021; 10(1):42. https://doi.org/10.3390/foods10010042

Chicago/Turabian Style

Yao, Siyu; Aykas, Didem P.; Rodriguez-Saona, Luis. 2021. "Rapid Authentication of Potato Chip Oil by Vibrational Spectroscopy Combined with Pattern Recognition Analysis" Foods 10, no. 1: 42. https://doi.org/10.3390/foods10010042

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