Chao-Kai Chang, Ya-Ting Yang, Mohsen Gavahian, Kuan-Chen Cheng, Chih-Yao Hou, Min-Hung Chen, Shella Permatasari Santoso, Chang-Wei Hsieh
This study aimed to investigate the effects of the pulsed electric field (25, 50, and 100 kV/m) on the ripening of atemoya (Annona cherimola × Annona squamosa) and explore the mechanism of delayed ripening. The results showed that the 50 kV/m pulsed electric field (PEF) treatment significantly affected atemoya preservation, inhibited browning for up to 18 days, and reduced firmness loss by 27% to prolong the shelf-life of the treated sample to 30 days. Regarding the mechanisms, the shelf-life extension was consistent with PEF-induced enzyme inactivation. The 50 kV/m PEF treatments inhibited the respiration rate peak from the 15th day to the 18th day and decremented the activities of pectin methylesterase, polygalacturonase, cellulase, and amylase by 17.0%, 36.2%, 32.3%, and 39.0%, respectively. These results suggest that PEF could extend the shelf-life of atemoya and probably other climacteric fruits. © 2023 Elsevier Ltd
Department of Food Science and Biotechnology, National Chung Hsing University, South Dist, Taichung City, 402, Taiwan; Department of Food Science, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Institute of Biotechnology, National Taiwan University, Taipei, 10617, Taiwan; Graduate Institute of Food Science Technology, National Taiwan University, Taipei, 10617, Taiwan; Department of Optometry, Asia University, Taichung City, 413305, Taiwan; Department of Medical Research, China Medical University Hospital, Taichung City, 404333, Taiwan; Department of Seafood Science, National Kaohsiung University of Science and Technology, Nanzi Dist, Kaohsiung City, 81157, Taiwan; Agriculture & Food Agency Council of Agriculture, Executive Yuan Marketing & Processing Division 8, Chung Hsing New Village, Nantou, 540, Taiwan; Department of Chemical Engineering, Widya Mandala Surabaya Catholic University, Surabaya, 60114, Indonesia; Department of Chemical Engineering, National Taiwan University of Science and Techology, Daan Dist, Taipei, 10607, Taiwan