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Application of infrared radiation in the drying of food products

Huang, Dan LU ; Yang, Pei ; Tang, Xiaohong ; Luo, Lei and Sunden, Bengt LU (2021) In Trends in Food Science and Technology 110. p.765-777
Abstract

Background: Drying is an important method to preserve food products. Although many traditional drying technologies (hot air, freeze, microwave drying) have been applied successfully to various food products, each drying technique has its own advantages and disadvantages. Novel drying methods such as infrared drying, have become very popular. Scope and approach: This study gives an overview on the application of infrared radiation in the drying of food products in the last decade. The effects of main parameters (infrared power, intensity, distance, wavelength and drying temperature) and the introduction of infrared radiation on drying kinetics and food quality were discussed. Inconsistencies were pointed out and analyzed in detail. Key... (More)

Background: Drying is an important method to preserve food products. Although many traditional drying technologies (hot air, freeze, microwave drying) have been applied successfully to various food products, each drying technique has its own advantages and disadvantages. Novel drying methods such as infrared drying, have become very popular. Scope and approach: This study gives an overview on the application of infrared radiation in the drying of food products in the last decade. The effects of main parameters (infrared power, intensity, distance, wavelength and drying temperature) and the introduction of infrared radiation on drying kinetics and food quality were discussed. Inconsistencies were pointed out and analyzed in detail. Key findings and conclusions: Drying kinetics was improved by introducing infrared radiation and increased with increasing infrared power, intensity, drying temperature and decreasing infrared distance. However, a very high infrared power, intensity, drying temperature and a very low infrared distance should be avoided as the food products will be overheated. The effects of infrared parameters on food quality were unpredictable. The energy consumption under infrared radiation was also variable. When the reduction of drying time was considerable, the energy consumption decreased. When the reduction was insufficient, the energy consumption increased. The application of infrared radiation will also affect the food quality. Generally, the infrared radiation can decrease the water activity, reduce the total color change and improve the nutrient retention.

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; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Drying kinetics, Food quality, Infrared radiation, Parametric effects
in
Trends in Food Science and Technology
volume
110
pages
13 pages
publisher
Elsevier
external identifiers
  • scopus:85101701091
ISSN
0924-2244
DOI
10.1016/j.tifs.2021.02.039
language
English
LU publication?
yes
id
1895a688-5559-42d0-8395-e49f56d36f92
date added to LUP
2021-03-15 08:38:27
date last changed
2023-11-21 00:37:04
@article{1895a688-5559-42d0-8395-e49f56d36f92,
  abstract     = {{<p>Background: Drying is an important method to preserve food products. Although many traditional drying technologies (hot air, freeze, microwave drying) have been applied successfully to various food products, each drying technique has its own advantages and disadvantages. Novel drying methods such as infrared drying, have become very popular. Scope and approach: This study gives an overview on the application of infrared radiation in the drying of food products in the last decade. The effects of main parameters (infrared power, intensity, distance, wavelength and drying temperature) and the introduction of infrared radiation on drying kinetics and food quality were discussed. Inconsistencies were pointed out and analyzed in detail. Key findings and conclusions: Drying kinetics was improved by introducing infrared radiation and increased with increasing infrared power, intensity, drying temperature and decreasing infrared distance. However, a very high infrared power, intensity, drying temperature and a very low infrared distance should be avoided as the food products will be overheated. The effects of infrared parameters on food quality were unpredictable. The energy consumption under infrared radiation was also variable. When the reduction of drying time was considerable, the energy consumption decreased. When the reduction was insufficient, the energy consumption increased. The application of infrared radiation will also affect the food quality. Generally, the infrared radiation can decrease the water activity, reduce the total color change and improve the nutrient retention.</p>}},
  author       = {{Huang, Dan and Yang, Pei and Tang, Xiaohong and Luo, Lei and Sunden, Bengt}},
  issn         = {{0924-2244}},
  keywords     = {{Drying kinetics; Food quality; Infrared radiation; Parametric effects}},
  language     = {{eng}},
  pages        = {{765--777}},
  publisher    = {{Elsevier}},
  series       = {{Trends in Food Science and Technology}},
  title        = {{Application of infrared radiation in the drying of food products}},
  url          = {{http://dx.doi.org/10.1016/j.tifs.2021.02.039}},
  doi          = {{10.1016/j.tifs.2021.02.039}},
  volume       = {{110}},
  year         = {{2021}},
}