Energy efficient drying technologies for sweet potatoes: Operating and drying mechanism, quality-related attributes
Sweet potatoes (SPs) are a versatile tuberous crop used as subsistence and cash crop in raw and processed forms. The major issue with SPs is post-harvest losses, which result in noticeable quality decline because of inappropriate handling, storage, delayed transit, and sales, as well as microbiologi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-10-01
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| Series: | Frontiers in Nutrition |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fnut.2022.1040314/full |
| _version_ | 1797985799000555520 |
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| author | Muhammad Tayyab Rashid Kunlun Liu Mushtaque Ahmed Jatoi Bushra Safdar Dingyang Lv Qingyun Li |
| author_facet | Muhammad Tayyab Rashid Kunlun Liu Mushtaque Ahmed Jatoi Bushra Safdar Dingyang Lv Qingyun Li |
| author_sort | Muhammad Tayyab Rashid |
| collection | DOAJ |
| description | Sweet potatoes (SPs) are a versatile tuberous crop used as subsistence and cash crop in raw and processed forms. The major issue with SPs is post-harvest losses, which result in noticeable quality decline because of inappropriate handling, storage, delayed transit, and sales, as well as microbiological and enzymatic activity. Drying is an excellent strategy for managing short postharvest storage life, preserving nutrients, and maximizing long-term benefits. However, several parameters must be considered before drying SPs, such as relative humidity, temperature, drying duration, size, and shape. The current review looks at the factors influencing SPs' moisture loss, drying kinetics, diverse drying methods, pretreatments, operating conditions, and their efficacy in improving the drying process, functional, and nutritional qualities. An optimal drying process is required to preserve SPs to obtain concentrated nutrients and improve energy efficiency to be ecofriendly. Drying sweet potatoes using traditional methods such as sun or open-air drying was found to be a slow process that could result in a lower quality. Various advanced drying techniques, like vacuum, infrared, freeze drying, and pretreatments such as ultrasound and osmotic dehydration, have been developed and are successfully used globally. The best-fit thin-layer models (Hii, Page, two-term, logarithmic) utilized for drying SPs and appropriate modeling methods for optimizing drying procedures are also discussed. |
| first_indexed | 2024-04-11T07:22:46Z |
| format | Article |
| id | doaj.art-09d3ff434fdc453a9c47c082af7931cb |
| institution | Directory Open Access Journal |
| issn | 2296-861X |
| language | English |
| last_indexed | 2024-04-11T07:22:46Z |
| publishDate | 2022-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Nutrition |
| spelling | doaj.art-09d3ff434fdc453a9c47c082af7931cb2022-12-22T04:37:09ZengFrontiers Media S.A.Frontiers in Nutrition2296-861X2022-10-01910.3389/fnut.2022.10403141040314Energy efficient drying technologies for sweet potatoes: Operating and drying mechanism, quality-related attributesMuhammad Tayyab Rashid0Kunlun Liu1Mushtaque Ahmed Jatoi2Bushra Safdar3Dingyang Lv4Qingyun Li5College of Food Science and Engineering, Henan University of Technology, Zhengzhou, ChinaCollege of Food Science and Engineering, Henan University of Technology, Zhengzhou, ChinaDepartment of Botany, Shah Abdul Latif University, Khairpur, PakistanBeijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, ChinaCollege of Food Science and Engineering, Henan University of Technology, Zhengzhou, ChinaCollege of Food Science and Engineering, Henan University of Technology, Zhengzhou, ChinaSweet potatoes (SPs) are a versatile tuberous crop used as subsistence and cash crop in raw and processed forms. The major issue with SPs is post-harvest losses, which result in noticeable quality decline because of inappropriate handling, storage, delayed transit, and sales, as well as microbiological and enzymatic activity. Drying is an excellent strategy for managing short postharvest storage life, preserving nutrients, and maximizing long-term benefits. However, several parameters must be considered before drying SPs, such as relative humidity, temperature, drying duration, size, and shape. The current review looks at the factors influencing SPs' moisture loss, drying kinetics, diverse drying methods, pretreatments, operating conditions, and their efficacy in improving the drying process, functional, and nutritional qualities. An optimal drying process is required to preserve SPs to obtain concentrated nutrients and improve energy efficiency to be ecofriendly. Drying sweet potatoes using traditional methods such as sun or open-air drying was found to be a slow process that could result in a lower quality. Various advanced drying techniques, like vacuum, infrared, freeze drying, and pretreatments such as ultrasound and osmotic dehydration, have been developed and are successfully used globally. The best-fit thin-layer models (Hii, Page, two-term, logarithmic) utilized for drying SPs and appropriate modeling methods for optimizing drying procedures are also discussed.https://www.frontiersin.org/articles/10.3389/fnut.2022.1040314/fullsweet potatoesdrying methodskineticsmathematical modelingenergy considerations |
| spellingShingle | Muhammad Tayyab Rashid Kunlun Liu Mushtaque Ahmed Jatoi Bushra Safdar Dingyang Lv Qingyun Li Energy efficient drying technologies for sweet potatoes: Operating and drying mechanism, quality-related attributes Frontiers in Nutrition sweet potatoes drying methods kinetics mathematical modeling energy considerations |
| title | Energy efficient drying technologies for sweet potatoes: Operating and drying mechanism, quality-related attributes |
| title_full | Energy efficient drying technologies for sweet potatoes: Operating and drying mechanism, quality-related attributes |
| title_fullStr | Energy efficient drying technologies for sweet potatoes: Operating and drying mechanism, quality-related attributes |
| title_full_unstemmed | Energy efficient drying technologies for sweet potatoes: Operating and drying mechanism, quality-related attributes |
| title_short | Energy efficient drying technologies for sweet potatoes: Operating and drying mechanism, quality-related attributes |
| title_sort | energy efficient drying technologies for sweet potatoes operating and drying mechanism quality related attributes |
| topic | sweet potatoes drying methods kinetics mathematical modeling energy considerations |
| url | https://www.frontiersin.org/articles/10.3389/fnut.2022.1040314/full |
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