Bo-Kuen Chen, Chao-Kai Chang, Kuan-Chen Cheng, Chih-Yao Hou, Jer-An Lin, Min-Hung Chen, Shella Permatasari Santoso, Chang-Pen Chen, Chang-Wei Hsieh
In this study, a pulsed electric field (PEF) was used to establish the preservation conditions of bananas (Musa spp.) and explore the effect on chilling injury (CI) inhibition. The response surface methodology (RSM) demonstrated that the PEF strength of 50 kV m−1 has a better inhibition effect on browning; however, adverse effects are caused when the PEF strength exceeds 100 kV m−1 in comparison with untreated group. The optimal conditions established using RSM were PEF strength 32 kV m−1, frequency 278 Hz, treatment time 32 min and width 600 μs, which can effectively inhibit the degree of banana browning by 131.6%. Further storage tests indicated that PEF could effectively improve fruit weight loss (18.91%), firmness (10.91%), browning and other changes associated with quality by maintaining the levels of total chlorophyll, carotenoids and ascorbic acid. This suggests that PEF has the potential to delay the CI of bananas stored at low temperatures and can maintain high fruit quality. © 2021 Elsevier Ltd
Department of Food Science and Biotechnology, National Chung Hsing University, 145 Xingda Rd., South Dist, Taichung City, 40227, Taiwan; Graduate Institute of Food Science and Technology, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan; Institute of Biotechnology, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan; Department of Medical Research, China Medical University Hospital, Taichung City, 404333, Taiwan; Department of Optometry, Asia University, 500, Lioufeng Rd., Wufeng, Taichung city, 41354, Taiwan; Department of Seafood Science, National Kaohsiung University of Science and Technology, 142, Haizhuan Rd., Nanzi Dist, Kaohsiung City, 81157, Taiwan; Graduate Institute of Food Safety, National Chung Hsing University, 145 Xingda Rd, South Dis, Taichung City, 40227, Taiwan; Agriculture and Food Agency (Marketing and Processing Division), Council of Agriculture, Executive Yuan, Nantou City, 54044, Taiwan; Department of Chemical Engineering, Widya Mandala Surabaya Catholic University, Kalijudan 37, Surabaya, 60114, East Java, Indonesia; Department of Chemical Engineering, National Taiwan University of Science and Techology, Keelung Rd. 43, Daan Dist, Taipei, 10607, Taiwan; Energy and Agile System Department, Metal Industries Research & Development Centre, 1001 Kaonan Highway, Kaohsiung City, 821011, Taiwan