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PENG J, LIU C, XING S, BAI K, LIU F. The application of electrostatic field technology for the preservation of perishable foods. FOOD SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1590/fst.121722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jiakun PENG
- China Agricultural University, China; China Agricultural University, China
| | - Chune LIU
- China Agricultural University, China
| | | | - Kaikai BAI
- China Agricultural University, China; China Agricultural University, China
| | - Feng LIU
- China Agricultural University, China
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Punthi F, Yudhistira B, Gavahian M, Chang CK, Cheng KC, Hou CY, Hsieh CW. Pulsed electric field-assisted drying: A review of its underlying mechanisms, applications, and role in fresh produce plant-based food preservation. Compr Rev Food Sci Food Saf 2022; 21:5109-5130. [PMID: 36199192 DOI: 10.1111/1541-4337.13052] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 08/26/2022] [Accepted: 09/04/2022] [Indexed: 01/28/2023]
Abstract
Drying is a key processing step for plant-based foods. The quality of dried products, including the physical, nutritional, microbiological, and sensory attributes, is influenced by the drying method used. Conventional drying technologies have low efficiency and can negatively affect product quality. Recently, pulsed electric field (PEF)-assisted techniques are being explored as a novel pretreatment for drying. This review focuses on the application of PEF as pretreatment for drying plant-based products, the preservation effects of this pretreatment, and its underlying mechanisms. A literature search revealed that PEF-assisted drying is beneficial for maintaining the physicochemical properties of the dried products and preserving their color and constituent chemical compounds. PEF-assisted drying promotes rehydration and improves the kinetics of drying. Unlike conventional technologies, PEF-assisted drying enables selective cell disintegration while maintaining product quality. Before the drying process, PEF pretreatment inactivates microbes and enzymes and controls respiratory activity, which may further contribute to preservation. Despite numerous advantages, the efficiency and applicably of PEF-assisted drying can be improved in the future.
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Affiliation(s)
- Fuangfah Punthi
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, Republic of China
| | - Bara Yudhistira
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, Republic of China.,Department of Food Science and Technology, Sebelas Maret University, Surakarta, Indonesia
| | - Mohsen Gavahian
- Department of Food Science, National Pingtung University of Science and Technology, Pingtung, Taiwan, Republic of China
| | - Chao-Kai Chang
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, Republic of China
| | - Kuan-Chen Cheng
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan, Republic of China.,Graduate Institute of Food Science Technology, National Taiwan University, Taipei, Taiwan, Republic of China.,Department of Optometry, Asia University, Taichung, Taiwan, Republic of China.,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, Republic of China
| | - Chih-Yao Hou
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan, Republic of China
| | - Chang-Wei Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan, Republic of China.,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan, Republic of China
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Method for Prolonging the Shelf Life of Apples after Storage. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12083975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study investigated the effects of the use of low magnetic fields as a potential method for improving the quality of apples after storage. The fruit were exposed to 100 μT magnetic fields for 8 h per day and kept for a period of two weeks in room conditions. The results showed that the samples that were treated with a magnetic field generally had a higher value ratio of total soluble solid and titratable acidity compared to the untreated samples, which indicated their higher quality. Continuous treatment with a magnetic field influenced the mechanical properties of apples, as demonstrated by the greater firmness, lower weight loss and suppressed CO2 production of the apples that were stored in room conditions. After the treatment of the apples, a new product was produced with greater firmness, higher quality potential (the ratio of total soluble solid and titratable acidity) and an extended shelf life/lower respiration rate. Therefore, treatment with a magnetic field can be used to extend the shelf life of apples and needs to be demonstrated by further investigations.
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