Performance Evaluation of Top-Spray Fluidized Bed Coating for Healthy Coated Rice Production

Journal article

Authors/Editors

Strategic Research Themes

No matching items found.

Publication Details

Author list: Palamanit A., Prachayawarakorn S., Tungtrakul P., Soponronnarit S.

Publisher: Springer

Publication year: 2016

Journal: Food and Bioprocess Technology (1935-5130)

Volume number: 9

Issue number: 8

Start page: 1317

End page: 1326

Number of pages: 10

ISSN: 1935-5130

eISSN: 1935-5149

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84961627449&doi=10.1007%2fs11947-016-1720-3&partnerID=40&md5=519d52ea89c43379927f0d53ec310dcf

Languages: English-Great Britain (EN-GB)

View in Web of Science | View on publisher site | View citing articles in Web of Science

Abstract

Coating with top-spray fluidized bed at inappropriate operating condition not only provides low product quality but also leads to low coating efficiency and improper energy consumption. The objective of this study was therefore to study the effects of superficial air velocity (Vf), atomization air pressure (Ap), and recycled exhaust air (Ra) on the performance of top-spray fluidized bed coating (TSFBC) in terms of product quality, coating efficiency (CE), and energy consumption for producing turmeric extract coated rice (TECR). The experimental results showed that the operation of TSFBC without Ra provided the final moisture content (MC) of TECR lower than 12 % (wet basis (w.b.)) for all Vf’s and Ap’s. The lowering final MC of TECR below 11.8 % (w.b.) led to the fissure of all TECR kernels. The Ra with 80 % could significantly reduce the number of fissured kernels and the energy consumption of electric heater by 41.7–46.5 %. The operation of TSFBC at low Vf, i.e., 2 m/s, resulted in high number of uncoated white rice kernels (UCWR) for all Ap’s and Ra. When the Vf was increased to 2.5 or 3 m/s, the number of UCWR was significantly reduced and the value of CE was higher than that at 2 m/s. At such both velocities, the Ap and Ra insignificantly affected the CE but the Ra slightly affected the number of UCWR. © 2016, Springer Science+Business Media New York.

Keywords

Air suspension coating