Changes in Cracking Behavior and Milling Quality of Selected Australian Rice Varieties Due to Postdrying Annealing and Subsequent Storage

Truong, T, Truong, V, Fukai, S and Bhandari, B 2012, 'Changes in Cracking Behavior and Milling Quality of Selected Australian Rice Varieties Due to Postdrying Annealing and Subsequent Storage', Drying Technology, vol. 30, no. 16, pp. 1831-1843.


Document type: Journal Article
Collection: Journal Articles

Title Changes in Cracking Behavior and Milling Quality of Selected Australian Rice Varieties Due to Postdrying Annealing and Subsequent Storage
Author(s) Truong, T
Truong, V
Fukai, S
Bhandari, B
Year 2012
Journal name Drying Technology
Volume number 30
Issue number 16
Start page 1831
End page 1843
Total pages 13
Publisher Taylor & Francis
Abstract This study investigated the effect of drying temperatures, annealing regimes, and storage conditions on the level of rice kernel fissuring, mechanical strength, and head rice yield of three Australian-grown rice varieties, namely, Kyeema (long grain), Amaroo, and Reiziq (medium grains). Paddy samples were dried at 40, 60, and 80°C and then annealed for 0, 40, 80, and 120 min at the same drying temperature. It was found that annealing slightly improved the head rice yield with an increase in stiffness of rice kernels. The number of fissured kernels decreased with prolonged annealing duration of 80-120 min. During the storage period of up to 4 months at 4, 20, and 38°C, all measured parameters, such as percentage of fissured kernels, hardness, stiffness, head rice yield, and pasting properties, also showed increasing trends. A relatively rapid change in these physical properties of all rice samples was observed during storage at 38°C. A significant increase in stiffness of rice during storage at 38°C suggested that physical aging occurs during storage of rice below its glass transition temperature (55°C).
Subject Food Processing
Food Chemistry and Molecular Gastronomy (excl. Wine)
Keyword(s) Annealing
Drying
Mechanical strength
Milling quality
Rice
Storage
Tempering
DOI - identifier 10.1080/07373937.2012.710692
Copyright notice © 2012 Taylor & Francis Group, LLC
ISSN 0737-3937
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