Drying Technology Used in Food Processing and Preservation

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

Deadline for manuscript submissions: 31 December 2024 | Viewed by 2840

Special Issue Editors


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Guest Editor
Department of Food Science and Engineering, Haide College, Ocean University of China, Qingdao 266100, China
Interests: food processing and engineering; food preservation and shelf-life extension; spray-dried; drying techniques; drying temperature

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Guest Editor
Institute of Nutrition and Health, School of Public Health, Qingdao University, Qingdao 266071, China
Interests: food processing; drying techniques; food preservation; shelf life

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Guest Editor
School of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
Interests: food processing; oil processing and nutrition

Special Issue Information

Dear Colleagues,

Drying is a widely used method in the food industry for extending the shelf life, improving the food safety and quality, or reducing the volume of food products. At the same time, different drying technologies can have a significant impact on the texture, microstructure, or reconstitution properties of food. Currently, common drying techniques used in the industry mainly include hot air drying, freeze drying, microwave drying, infrared radiation drying, spouted bed drying technology, and fluidized bed drying technology. Therefore, this Special Issue—entitled “Drying Techniques Used in Food Processing and Preservation”—aims to present high-quality papers that review traditional and novel drying technologies, along with the pre-treatment methods used in food production and storage. Additionally, studies that explore the improvement of existing drying technologies and their impact on food quality and safety, as well as their role in enhancing drying efficiency, cost-effectiveness, and environment-friendliness, are welcome.

Dr. Fanqianhui Yu
Dr. Suisui Jiang
Dr. Xing Qiao
Guest Editors

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Keywords

  • drying technology
  • drying principles
  • food safety and quality
  • food processing
  • food properties

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Published Papers (1 paper)

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Research

14 pages, 1738 KiB  
Article
Empirical Modeling of the Drying Kinetics of Red Beetroot (Beta vulgaris L.; Chenopodiaceae) with Peel, and Flour Stability in Laminated and Plastic Flexible Packaging
by Elisabete Piancó de Sousa, Emanuel Neto Alves de Oliveira, Thamirys Lorranne Santos Lima, Rafael Fernandes Almeida, Jefferson Henrique Tiago Barros, Clara Mariana Gonçalves Lima, Angelo Maria Giuffrè, Jolanta Wawrzyniak, Sławomir Wybraniec, Henrique Douglas Melo Coutinho and Bruno Fonsêca Feitosa
Foods 2024, 13(17), 2784; https://doi.org/10.3390/foods13172784 - 1 Sep 2024
Cited by 1 | Viewed by 2261
Abstract
Despite the high global production of beetroot (Beta vulgaris L.), its peel is often discarded. Transforming beetroot into flour can reduce waste, improve food security, and decrease environmental pollution. However, large-scale feasibility depends on understanding drying kinetics and optimal storage conditions. This [...] Read more.
Despite the high global production of beetroot (Beta vulgaris L.), its peel is often discarded. Transforming beetroot into flour can reduce waste, improve food security, and decrease environmental pollution. However, large-scale feasibility depends on understanding drying kinetics and optimal storage conditions. This study aimed to investigate the effects of different temperatures in the convective drying of whole beetroot and evaluate the influence of laminated flexible and plastic packaging on flour stability over two months. Drying kinetics were analyzed using five models, with the Page and Logarithm models showing the best fit (R2 > 0.99). Def values (1.27 × 10−9 to 2.04 × 10−9 m2 s−1) increased with rising temperatures while drying time was reduced (from 820 to 400 min), indicating efficient diffusion. The activation energy was 29.34 KJ mol−1, comparable to other plant matrices. Drying reduced moisture and increased ash concentration in the flour. The flour showed a good water adsorption capacity and low cohesiveness, making it marketable. Laminated packaging was more effective in controlling physicochemical parameters, reducing hygroscopicity, and maintaining quality over 60 days. In summary, the Page model can predict beetroot drying kinetics effectively, and laminated packaging can control flour stability. Full article
(This article belongs to the Special Issue Drying Technology Used in Food Processing and Preservation)
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