Study of the Targeted Regulation of Rice Drying Characteristics and Quality
Source abstract
Abstract
As the pre-process of storage and processing, rice drying is a key link to ensuring grain quality. A scientific and reasonable drying process can maintain grain quality and realize grain loss reduction, energy savings, and emission reduction. By establishing the response surface (RSM) regression model, the relationship between various experimental factors and quality indicators was analyzed, and the reasons for the results were explained. The optimized parameter combination was a hot air temperature of 43.14 °C, hot air humidity of 48.00%, initial moisture content of 23.80%, hot air velocity of 0.70 m/s, and hysteresis ratio of 3.55. Under this parameter combination, the drying characteristics (net drying time = 157.61 min, germination rate = 94.15%), processing quality (burst waist increase rate = 3.48%, whole rice rate = 70.458%), and nutritional quality (fatty acid value = 20.93 mg, resistant starch concentration = 195.26 μg/g, protein content change = 8.53 g/100 g, fat content change = 2.37 g/100 g) of rice after drying improved. The relative error between the validation results and the optimized results was 4.68%, indicating that the optimized process parameters can improve the efficiency and quality of rice drying. According to the regression model, the process reference chart with the process retrieval and prediction function was drawn, and the corresponding high-quality control scheme was given, providing a reference for the parameter settings of actual drying operations. The optimized drying process parameter combination effectively reduced the moisture gradient inside rice grains, drying stress, and the occurrence of cracks, thereby improving the appearance, quality and nutritional value of rice after drying. Moreover, the process reference chart can provide a reference for the actual preliminary processing technology of rice after production and a theoretical basis for an in-depth exploration of the mechanism of changes in rice quality.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Food Quality and Safety Studies · Freezing and Crystallization Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
College of Mechanical and Electrical Engineering, Xinjiang Production and Construction Corps Key Laboratory of Utilization and Equipment of Special Agricultural and Forestry Products in Southern Xinjiang, Tarim University, Alar 843300, China
National Engineering Research Centre for Grain Storage and Logistics, Beijing 102209, China
Funding
Academy of National Food and Strategic Reserves Administration · Henana Key Laboratory of Grain and oil storage facility & safety, HAUT
References (38)
Show source-provided references
1. Intermittent Drying of Rice Grains with Husk: Modelling and Experimentation10.4028/www.scientific.net/DF.25.9 ↗
2. Study on the drying process of rice with variable temperature and hot air based on glass transition
3. Jin, Y., Yin, J., Xie, H., and Zhang, Z. (2021). Reconstruction of Rice Drying Model and Analysis of Tempering Characteristics Based on Drying Accumulated Temperature. Appl. Sci., 11.10.3390/app112311113 ↗
4. Relationship between accumulated temperature and quality of paddy10.1080/10942912.2019.1566241 ↗
5. Effects of infrared radiation drying and heat pump drying combined with tempering on the quality of long-grain paddy rice10.1111/ijfs.13834 ↗
6. Numerical simulation and optimization of rice isothermal drying-slow quenching process
7. Study on drying retarding characteristics and crack generation law of rice
8. Effects of hot air assisted radio frequency drying on heating uniformity, drying characteristics and quality of paddy10.1016/j.lwt.2022.113131 ↗
9. Investigation of Physicochemical and Textural Properties of Brown Rice by Hot Air Assisted Radio Frequency Drying10.1007/s11947-023-03001-8 ↗
10. Starch gelatinization and drying of paddy using microwave rotary drum dryer: Optimization, kinetics, and cooking studies10.1080/07373937.2020.1741605 ↗
11. Optimization of hot air drying process of corn using genetic algorithm and response surface methodology10.1080/10942912.2020.1754233 ↗
12. Jin, Y., Yin, J., Xie, H., and Zhang, Z. (2023). Investigation of a Precise Control Scheme for Rice Quality. Appl. Sci., 13.10.3390/app13137532 ↗
13. A neural network model used in continuous grain dryer control system10.1080/07373937.2021.1891930 ↗
14. Wu, W., Jin, Y., Zhang, Y., Han, F., Xu, Y., Chen, L., Qin, X., Wu, Y., Liu, E., and Wang, T. (2016). The Utility Model Relates to a Vertical Moisture Heat Controlled Speed Thin Layer Drying Test Bed. (CN105486073B).
15. (2008). Oilseeds—Determination of Moisture and Volatile Matter Content (Standard No. GB/T 14489.1-2008).
16. (1985). Inspection of Grain and Oilseeds--Methods for Determination of Yellow-Coloured Rice and Cracked Kernels (Standard No. GB/T 5496-1985).
17. (2008). Determination of Head Rice Yield of Paddy (Standard No. GB/T 21719-2008).
18. (2014). Determination of Resistant Starch in Rice and Its Products—Spectrophotometric Method (Standard No. NY/T 2638-2014).
19. (2012). Inspection of Grain and Oils—Determination of Fat Acidity of Cereal and Cereal Products—Instrumental Analysis Method (Standard No. GB/T 29405-2012).
20. (2010). Inspection of Grain and Oils—Crude Protein Determination in Rice—Near-Infrared Method (Standard No. GB/T 24897-2010).
21. Effect of drying conditions on the quality of IRGA 424 rice10.1002/jsfa.9349 ↗
22. Development of germinating rate model and influencing parameters for paddy rice drying in a deep fixed-bed
23. Danyang, W., Jie, W., Wenze, Y., Zhipeng, W., Benhua, Z., Bo, X., and Hong, G. (2021). Research on drying characteristics of rice and construction of dynamic model. J. Shenyang Agric. Univ.
24. Microwave drying of germinated brown rice: Correlation of drying characteristics with the final quality10.1016/j.ifset.2021.102673 ↗
25. Characteristics of functional brown rice prepared by parboiling and microwave drying10.1016/j.jspr.2021.101796 ↗
26. Optimization and experiment of process parameters of rice drying with hot air
27. Spatio-temporal changes in annual accumulated temperature in China and the effects on cropping systems, 1980s to 200010.3354/cr00823 ↗
28. Effect of tempering approach following cross-flow drying on rice milling yields10.1080/07373937.2018.1564760 ↗
29. Multi-objective optimization of hybrid microwave-fluidized bed drying conditions of rice using response surface methodology10.1016/j.jspr.2022.101956 ↗
30. Microwave reheating increases the resistant starch content in cooked rice with high water contents10.1016/j.ijbiomac.2021.06.136 ↗
31. Variation of resistant starch content in different processing types and their starch granules properties in rice10.1016/j.carbpol.2021.118742 ↗
32. Sustainable rice bran protein: Composition, extraction, quality properties and applications10.1016/j.tifs.2024.104355 ↗
33. Abd Rahim, F.N., Ibadullah, W.Z.W., Saari, N., Brishti, F.H., Mustapha, N.A., Ahmad, N., and Arulrajah, B. (2023). The effect of alkaline extraction and drying techniques on the physicochemical, structural properties and functionality of rice bran protein concentrates. Int. J. Biol. Macromol., 242.10.1016/j.ijbiomac.2023.124908 ↗
34. Comparative study of structural and functional characterization of bran protein concentrates from superfine, fine and coarse rice cultivars10.1016/j.ijbiomac.2017.12.161 ↗
35. Research progress on the relationship between rice protein and rice taste quality
36. Correlation between physical and chemical properties of rice and eating quality
37. Quality change and dynamics of rice during storage
38. Optimization of thin layer hot air drying process of rice and mathematical model fitting