ArticleUltrasonics sonochemistry2025
Ultrasonic-assisted coating and UV irradiation as hurdle technology to augment anti-browning and disinfection efficacy on fresh-cut apples.
Article in Ultrasonics sonochemistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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7 authors.
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Abstract
Fresh-cut fruits are prone to quality deterioration from enzymatic browning and microbial contamination. Ultraviolet (UV) irradiation is a conventional method for disinfection and browning inhibition but does not provide prolonged effects post-treatment. Coating serves as a preservation technique offering continuous protection for fresh produce through solution immersion. However, this method involves solution waste and potential cross-contamination. Ultrasonic atomization coating (UA) is an emerging non-thermal technology that generates less waste and eliminates cross-contamination risk compared to traditional methods. In this study, ascorbic acid (AA), a common anti-browning agent, was selected as coating solution. Results showed that 1 % AA applied via UA for 3 min and UV irradiation for 10 min were optimal single treatment conditions, and 7 min of UV followed by 3 min of UA was optimal combined treatment. The effects of UV-UA, UV, and UA on physiological characteristics and microbial inactivation of fresh-cut apples during storage (0-2 days) were evaluated. UV-UA treatment more effectively inhibited peroxidase and polyphenol oxidase activities, reaching 57-60 % and 72-84 % of control group levels during storage, thereby reducing browning index. The disinfection efficacy against Salmonella Typhimurium and Escherichia coli O157:H showed UV-UA was comparable to UV at day 0, and achieved lowest microbial counts (3.84-4.04 log CFU/g) during storage (days 1-2). Similarly, UV-UA's disinfection efficacy against aerobic mesophilic bacteria, molds, and yeasts matched UV at day 0, resulting in lowest counts (2.09-2.46 log CFU/g) during days 1-2. In conclusion, UV-UA integrates UV disinfection with UA's sustained effects while avoiding liquid waste and cross-contamination issues of traditional coating methods.
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