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Universal Journal of Agricultural Research Vol. 12(3), pp. 493 - 505
DOI: 10.13189/ujar.2024.120305
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Using Industrial Fluidized Bed Heat Treatment to Eliminate Stored Insect Pests from Rice and Its Effect on Grain Quality


K. Boonsa-nga 1,2, D. Bundhurat 2,3, V. Changrue 2,3, Y. Chanbang 2,4,*
1 Postharvest Technology Research Center, Faculty of Agriculture, Chiang Mai University, Thailand
2 Postharvest Technology Innovation Center, Ministry of Higher Education, Science, Research and Innovation, Thailand
3 Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, Thailand
4 Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Thailand

ABSTRACT

Fluidized bed drying (FBD) heat treatment at 60℃ for 120 s using an industrial fluidized bed system was utilized for rice milling in Nakhon Ratchasima Province, Thailand. This process was considered one of the most appealing technologies for controlling insect pests in stored Khao Dawk Mali 105 rough rice harvested during the 2021 wet season. The industrial fluidized bed system has a loading capacity of 20–25 tons/hr and a flow rate of 8 m/s. This treatment lowered the rice moisture content from 28%–30% to 16%–18%. After air-drying had reduced the moisture content to 14%, 5-kg rough rice samples were stored in plastic bags and evaluated over a 12-month period. There was substantially greater insect infestation in the untreated control rice compared with the FBD-treated rice. The physical and chemical qualities of the rice were slightly impacted by FBD treatment. FBD-treated rice had a significantly lower percentage of whole grain kernels than the untreated control rice. With prolonged storage, the brightness (L*), whiteness index, gel consistency, alkali spreading value, amylose content, and aromatic 2-acetyl-1-pyrroline content decreased significantly. However, both untreated and FBD-treated rice met the Thai Agricultural Standard (TAS): Thai Hom Mali Rice.

KEYWORDS
Fluidized Bed Heat Treatment, Stored Insect Pests, Grain Quality

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] K. Boonsa-nga , D. Bundhurat , V. Changrue , Y. Chanbang , "Using Industrial Fluidized Bed Heat Treatment to Eliminate Stored Insect Pests from Rice and Its Effect on Grain Quality," Universal Journal of Agricultural Research, Vol. 12, No. 3, pp. 493 - 505, 2024. DOI: 10.13189/ujar.2024.120305.

(b). APA Format:
K. Boonsa-nga , D. Bundhurat , V. Changrue , Y. Chanbang (2024). Using Industrial Fluidized Bed Heat Treatment to Eliminate Stored Insect Pests from Rice and Its Effect on Grain Quality. Universal Journal of Agricultural Research, 12(3), 493 - 505. DOI: 10.13189/ujar.2024.120305.