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The commercial microwave oven was modified in order to make a lab scale microwave vacuum dryer. The dryer was used to investigate drying characteristic of purple-fleshed sweet potato slices. Two levels of power and two kinds of blanched pre-treatment was applied to the tuber slices. The experimental results showed that the lab scale microwave vacuu...
Citations
... The process reduced drying time to 7 min, achieving 7.5% moisture content. This method offers a rapid drying process with improved color preservation compared to hot water blanching [40]. Steam blanching significantly influences digestibility and β-carotene concentration in dried cassava, with drum-dried flours exhibiting higher digestibility, and air oven-dried samples showing elevated β-carotene levels [27]. ...
Cassava tuber is an essential staple crop in tropical regions with versatile applications in the food, feed, and industrial sectors. However, its high moisture content and perishable nature necessitate efficient preservation methods to extend its shelf life and enhance its value. Pre-drying, drying, and post-drying processes play pivotal roles in maintaining the quality and usability of cassava products. This review comprehensively examines the current status and future directions in the pre-drying, drying, and post-drying processes of cassava tuber. Various pre-drying or pretreatment methods and drying techniques are evaluated for their impacts on drying kinetics and product quality. Additionally, challenges and limitations in achieving high-quality processing of cassava flour are identified. Future directions in cassava drying methods emphasize the integration of combined pre-drying and drying techniques to optimize resource utilization and processing efficiency. Furthermore, the adoption of advanced online measurement and control technologies in drying equipment is highlighted for real-time monitoring and optimization of drying parameters. The importance of optimizing existing processes to establish a comprehensive cassava industrial chain and foster the development of the cassava deep-processing industry is emphasized. This review provides valuable insights into the current trends and future prospects in cassava drying technologies, aiming to facilitate sustainable and efficient utilization of cassava resources for various applications.
