Influence of Modern Sterilization Methods on Food Quality

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Packaging and Preservation".

Deadline for manuscript submissions: closed (22 August 2022) | Viewed by 2358

Special Issue Editor

School of Food Science and Technology, Jiangnan University, Wuxi, China
Interests: non-conventional technology; food waste; non-thermal effect; extraction; modification
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As consumers increasingly prefer “all-natural” and healthy foods, there has been an increasing demand for nontoxic, residual-free, and environmentally friendly food processing techniques. Sterilization is the key unit operation of food processing. Currently, there are many emerging sterilization technologies, but heat treatment is still the most effective and economical method in food processing. Additionally, most modern sterilization methods using the help of the nonthermal effect improve performance in terms of inactivating pathogens. Indeed, combinations with thermal or nonthermal effects have been explored extensively for the preservation of foods.

In this Special Issue, we focus on modern sterilization technologies, including UHT, continuous-flow pasteurization, cold plasma sterilization, ultra-high hydrostatic pressure sterilization, microwave sterilization, high-voltage pulsed electric field sterilization, ohmic heating, induced electric field sterilization, ultrasonic sterilization, irradiation sterilization, infrared ray sterilization, and pulsed intensity light. Comprehensive technical discussions and various analysis methods on food quality following the abovementioned sterilization treatment are particularly welcome.

Dr. Na Yang
Guest Editor

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Keywords

  • foods emerging technologies
  • heat treatment
  • nonthermal effect
  • food sterilization
  • enzyme inactivation
  • quality factor
  • physicochemical properties

Published Papers (1 paper)

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Research

12 pages, 1980 KiB  
Article
Study on Active Particles in Air Plasma and Their Effect on α-Amylase
by Cunshe Chen, Ruohao Sun, Ping Liu, Jufang Yang, Zhixuan Ouyang and Zhihua Pang
Foods 2022, 11(18), 2896; https://doi.org/10.3390/foods11182896 - 18 Sep 2022
Cited by 1 | Viewed by 1422
Abstract
As a new technology for food processing, plasma has good prospects for protein modification. This study investigated the effect of plasma on the activity of the α-amylase. The composition of the active particles in air plasma generated by spark discharge was analyzed and [...] Read more.
As a new technology for food processing, plasma has good prospects for protein modification. This study investigated the effect of plasma on the activity of the α-amylase. The composition of the active particles in air plasma generated by spark discharge was analyzed and determined. Furthermore, the quantitative analysis of the active particles such as H2O2, O3, and -OH was made by the chemical detection method. Powdered α-amylase was treated with plasma in various conditions, in which α-amylase and the variation of α-amylase activity under the action of air plasma were quantitatively analyzed. The results showed that the concentration of active particles in the system was positively correlated with the action time for air plasma. After 5 min of plasma action, the concentration of O3 and H2O2 was large enough for food disinfection, but the concentration of -OH was smaller and its lifetime was extremely short. Moreover, it was determined that the optimum action time for the activation of solid powdered α-amylase by air plasma was 120 s. With higher energy, the air plasma acts directly on solid powdered α-amylase to destroy its spatial structure, resulting in enzyme inactivation, sterilization, and disinfection. Full article
(This article belongs to the Special Issue Influence of Modern Sterilization Methods on Food Quality)
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