Study on the Microwave Vacuum Drying Characteristics and Drying Kinetic Model of Lycium barbarum Extract
In order to investigate the microwave vacuum drying characteristics of Lycium barbarum extract, the prediction model of drying kinetics of the relationship between its moisture ratio and drying time was established by investigating the influence rule of microwave power density and the initial relati...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | zho |
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The editorial department of Science and Technology of Food Industry
2023-03-01
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| Series: | Shipin gongye ke-ji |
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| Online Access: | http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022040215 |
| _version_ | 1811162789105893376 |
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| author | Guo QING Jian XU Yanyan MIAO Yongping ZHANG Luona ZHAO Chun CHENG Qi WU Jing WU |
| author_facet | Guo QING Jian XU Yanyan MIAO Yongping ZHANG Luona ZHAO Chun CHENG Qi WU Jing WU |
| author_sort | Guo QING |
| collection | DOAJ |
| description | In order to investigate the microwave vacuum drying characteristics of Lycium barbarum extract, the prediction model of drying kinetics of the relationship between its moisture ratio and drying time was established by investigating the influence rule of microwave power density and the initial relative density of the extract on the temperature, dry basis moisture content and water loss rate of the extract, and the model was validated. The experimental results showed that the microwave vacuum drying process of Lycium barbarum extract could be divided into two stages: The extract was transformed from a fluid state to a semi-fluid state (stage I) and from a semi-fluid state to a dry paste state (stage II). The higher the microwave power density and the initial relative density, the rising trend of the temperature of the extract seemed more obvious. The faster the water content of the dry base decreased, the greater the change in the rate of water loss, and the shorter the drying time required. By fitting six commonly used empirical models for thin-layer drying, among which the Wang model R2 was between 0.98878~0.99902, \begin{document}$ X $\end{document}2 and SSE were less than 0.0017 and 0.00849, which were the smallest values among the six models. And after verification, the predicted values of the model were basically fitted with the experimental values, which could better predict the moisture of Lycium barbarum extract during microwave vacuum drying change rule. |
| first_indexed | 2024-04-10T06:34:49Z |
| format | Article |
| id | doaj.art-1f14048dacf4484a93b25e26adf6cde2 |
| institution | Directory Open Access Journal |
| issn | 1002-0306 |
| language | zho |
| last_indexed | 2024-04-10T06:34:49Z |
| publishDate | 2023-03-01 |
| publisher | The editorial department of Science and Technology of Food Industry |
| record_format | Article |
| series | Shipin gongye ke-ji |
| spelling | doaj.art-1f14048dacf4484a93b25e26adf6cde22023-03-01T01:21:35ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062023-03-0144522222910.13386/j.issn1002-0306.20220402152022040215-5Study on the Microwave Vacuum Drying Characteristics and Drying Kinetic Model of Lycium barbarum ExtractGuo QING0Jian XU1Yanyan MIAO2Yongping ZHANG3Luona ZHAO4Chun CHENG5Qi WU6Jing WU7College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, ChinaCollege of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, ChinaCollege of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, ChinaCollege of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, ChinaCollege of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, ChinaCollege of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, ChinaGuizhou Xinqi Microwave Industry Co., Ltd., Guiyang 550025, ChinaGuizhou Xinqi Microwave Industry Co., Ltd., Guiyang 550025, ChinaIn order to investigate the microwave vacuum drying characteristics of Lycium barbarum extract, the prediction model of drying kinetics of the relationship between its moisture ratio and drying time was established by investigating the influence rule of microwave power density and the initial relative density of the extract on the temperature, dry basis moisture content and water loss rate of the extract, and the model was validated. The experimental results showed that the microwave vacuum drying process of Lycium barbarum extract could be divided into two stages: The extract was transformed from a fluid state to a semi-fluid state (stage I) and from a semi-fluid state to a dry paste state (stage II). The higher the microwave power density and the initial relative density, the rising trend of the temperature of the extract seemed more obvious. The faster the water content of the dry base decreased, the greater the change in the rate of water loss, and the shorter the drying time required. By fitting six commonly used empirical models for thin-layer drying, among which the Wang model R2 was between 0.98878~0.99902, \begin{document}$ X $\end{document}2 and SSE were less than 0.0017 and 0.00849, which were the smallest values among the six models. And after verification, the predicted values of the model were basically fitted with the experimental values, which could better predict the moisture of Lycium barbarum extract during microwave vacuum drying change rule.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022040215lycium barbarum extractmicrowave vacuum dryingdrying characteristicsdrying kinetics model |
| spellingShingle | Guo QING Jian XU Yanyan MIAO Yongping ZHANG Luona ZHAO Chun CHENG Qi WU Jing WU Study on the Microwave Vacuum Drying Characteristics and Drying Kinetic Model of Lycium barbarum Extract Shipin gongye ke-ji lycium barbarum extract microwave vacuum drying drying characteristics drying kinetics model |
| title | Study on the Microwave Vacuum Drying Characteristics and Drying Kinetic Model of Lycium barbarum Extract |
| title_full | Study on the Microwave Vacuum Drying Characteristics and Drying Kinetic Model of Lycium barbarum Extract |
| title_fullStr | Study on the Microwave Vacuum Drying Characteristics and Drying Kinetic Model of Lycium barbarum Extract |
| title_full_unstemmed | Study on the Microwave Vacuum Drying Characteristics and Drying Kinetic Model of Lycium barbarum Extract |
| title_short | Study on the Microwave Vacuum Drying Characteristics and Drying Kinetic Model of Lycium barbarum Extract |
| title_sort | study on the microwave vacuum drying characteristics and drying kinetic model of lycium barbarum extract |
| topic | lycium barbarum extract microwave vacuum drying drying characteristics drying kinetics model |
| url | http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022040215 |
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