Journal
FOOD BIOSCIENCE
Volume 50, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.fbio.2022.102170
Keywords
Malus domestica; Electrolyzed water; Plasma activated water; Pulsed electric fields; Ozone; Fruit quality
Categories
Funding
- National Research Foundation (NRF) of South Africa
- HORTGRO science project
- [137990]
- [146360]
- [NF8- 2021]
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This review critically assess the application of emerging non-thermal technologies such as cold plasma, pulsed electric fields, ozone, electrolyzed water, and edible coatings in the apple fruit industry. It concludes that future research should focus on balancing the decontamination performance of these technologies with the preservation of essential nutritional quality attributes.
Apples are rich sources of bioactive compounds (e.g., anthocyanins, flavanols, flavonols, and antioxidant ac-tivity), and micronutrients (e.g., vitamins, zinc, and iron) that are essential for normal human body functions. These compounds in apples help to regulate immune responses and protect against chronic diseases by neutralizing and eliminating cellular free radicals. Apple fruit production is ranked second globally, which has economic implication. The conventional industry practice of using chlorine-based chemical disinfectants has been discouraged based on public health concerns, and by strict policies limiting chemical residues on fresh or minimally processed ready to eat fruit. Therefore, the aim of this review is to provide a critical assessment on the status of emerging non-thermal technologies such as cold plasma, pulsed electric fields, ozone, electrolyzed water, and edible coatings for the whole and minimally processed apple fruit industry. The influence of these non-thermal technologies on microbial decontamination, preservation of bioactive compounds, and overall quality of apples during storage is discussed. In addition, based on extensive report on various studies about non -thermal technologies for apples. This review concluded that future investigations should focus on balancing the decontamination performance of these non-thermal technologies with the preservation of essential nutritional quality attributes, providing guidance for the apple fruit industry.
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