Pulsed Electric Field Treatment of Sweet Potatoes to Reduce Oil and Acrylamide in Kettle Chips
Year: 2025
Type: article
Abstract: The purpose of this investigation was to utilize pulsed electric field (PEF) technology to make sweet potato kettle chips (SPKC) healthier by lowering the amount of oil absorbed and reducing the amount of acrylamide formed during frying. Sweet potatoes were treated continuously in an Elea PEF Advantage Belt One system and prepared as SPKC, without peeling and sliced to a thickness of 1.7 mm. The specific energy for PEF application was set to either low (1.5 kJ/kg) or high (3.0 kJ/kg) with a field strength of 1.0 kV/cm and a pulse width of 6 μm. Batches of 500 g unrinsed potato slices were fried in canola oil at 130 °C for 360 s. The oil content in 3.0 g of fried SPKC was 1.39 g or 46.3%, whereas the oil content was 37.9% for high and 37.7% for low PEF-treatment conditions. Acrylamide (AA) in the fried SPKC was quantified by mass spectrometry to be 0.668 μg/g in the non-PEF control and 0.498 μg/g for low and 0.370 μg/g for high PEF treatment. The results of this study support the use of PEF in SPKC processing to reduce oil absorbance during frying by up to 9% and lower AA by up to 45%.
Source: Foods
Authors: Mark M. Skinner, Morgan A. Fong, Tauras P. Rimkus, Alyssa N. Hendricks, Tina P. Truong, Luke G. Woodbury, Xinzhu Pu, Owen M. McDougal
Institution: Boise State University
Language: English
Subfield: Biotechnology
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $3,499
Awards: Center of Biomedical Research Excellence in Matrix Biology Phase II, G1010954494, G1062220900, MRI: Acquisition of an LC-MS for Multidisciplinary Research and Education, Center of Biomedical Research Excellence in Matrix Biology Phase 3, G1369413580, MRI: Track 1: Acquisition of a Liquid Chromatography-High Resolution Mass Spectrometry System for Multidisciplinary Research and Training, NSF Convergence Accelerator Track J Phase 2: Dairy NutriSols - Catalyzing technology adoption to promote food and nutrition security, Idaho INBRE Program, G2683875492, G2732365621, NSF Convergence Accelerator Track J: Dairy Protein Product Research and Innovation Hub, G3865719669, G4844227136, G6920179636, Convergent Engineering and Biomolecular Science, Acquisition of a Confocal Microscope for Multidisciplinary Research and Education, G9000326153
OpenAlex ID: W4407411582