Effects of hot air assisted radio frequency intermittent drying with tempering on the physicochemical properties of rough rice

被引：0
|
作者：
Mahmood N. [1 ]
Zhang Y. [1 ]
Yin J. [2 ]
Liu Y. [1 ]
机构：
[1] College of Engineering, China Agricultural University, Beijing
[2] Academy of National Food and Strategic Reserves Administration, Beijing
来源：
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | 2022年 / 38卷
关键词：
degree of freshness; drying; fatty acid value; head rice yield; radio frequency; rough rice;
D O I：
10.11975/j.issn.1002-6819.2022.z.038
中图分类号：
学科分类号：
摘要：
Hot Air Assisted Radio Frequency (HARF) drying with multistage tempering was applied for post-harvest treatment of rough rice. The effects of HARF drying were explored about various parameters such as electrode gap (100, 110, 120 mm), material temperature (50, 55, 60°C) and air velocity (0.5, 1.5, 2.5 m/s) along with Hot Air Drying (HAD) on rice quality. In this study, optimal HARF drying condition was recorded at electrode gap of 110 mm, temperature of 60°C and hot air velocity of 2.5 m/s. After milling, the Head Rice Yield (HRY), broken percentage, chalkiness, length to width (L/W) radio, percentage of unsound kernels, fatty acid value and degree of freshness were estimated. Results indicated that RF heating significantly enhanced HRY and degree of freshness while reducing the broken percentage up to 16.21%, 36.48% and 26.45% respectively, as compared to HAD. Yellowness, length to width ratio and fatty acid value of HAD and HARF dried samples were statistically not significant (P>0.05), while chalkiness of HARF dried rice was slightly higher than HAD samples. The research findings are critical for application of HARF drying on industrial scale to improve the quality of rice. © 2022 Chinese Society of Agricultural Engineering. All rights reserved.
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页码：331 / 338
页数：7
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  • [1] Behera G, Sutar P P., A comprehensive review of mathematical modeling of paddy parboiling and drying: Effects of modern techniques on process kinetics and rice quality, Trends in Food Science & Technology, 75, pp. 206-230, (2018)
  • [2] Rehal J, Kaur G J, Singh A K., Influence of milling parameters on head rice recovery: A review, International Journal of Current Microbiology and Applied Sciences, 6, 10, pp. 1278-1295, (2017)
  • [3] Wang T, Khir R, Pan Z, Et al., Simultaneous rough rice drying and rice bran stabilization using infrared radiation heating, LWT - Food Science and Technology, 78, pp. 281-288, (2017)
  • [4] Behera G, Sutar P P., Effect of convective, infrared and microwave heating on drying rates, mass transfer characteristics, milling quality and microstructure of steam gelatinized paddy, Journal of Food Process Engineering, 41, 8, (2018)
  • [5] Luo H, Li C, Zhang Y., Design and experimental study of 5HP-25 type grain dryer, Transactions of the Chinese Society of Agricultural Engineering, 37, 1, pp. 279-289, (2021)
  • [6] Zhou X, Wang S., Recent developments in radio frequency drying of food and agricultural products: A review, Drying Technology, 37, 3, pp. 271-286, (2018)
  • [7] Ling B, Cheng T, Wang S., Recent developments in applications of radio frequency heating for improving safety and quality of food grains and their products: A review, Critical Review in Food Science and Nutrition, 60, 15, pp. 2622-2642, (2019)
  • [8] Jiao Y, Tang J, Wang Y, Et al., Radio-frequency applications for food processing and safety, Annual Review of Food Science and Technology, 9, pp. 105-127, (2018)
  • [9] Shewale S R, Rajoriya D, Bhavya M L, Et al., Application of radiofrequency heating and low humidity air for sequential drying of apple slices: Process intensification and quality improvement, LWT - Food Science and Technology, 135, (2021)
  • [10] Xie Y, Zhang Y, Xie Y, Et al., Radio frequency treatment accelerates drying rates and improves vigor of corn seeds, Food Chemistry, 319, (2020)
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