Cited by 177Food composition and propertiesAgricultural Engineering and MechanizationProteins in Food Systems

Milling of Rice Grains. The Degradation on Three Structural Levels of Starch in Rice Flour Can Be Independently Controlled during Grinding

Tran, Thuy T. B., Shelat, Kinnari J., Tang, Daniel, Li, Enpeng, Gilbert, Robert G., Hasjim, Jovin·2011·Journal of Agricultural and Food Chemistry

Abstract

Whole polished rice grains were ground using cryogenic and hammer milling to understand the mechanisms of degradation of starch granule structure, whole (branched) molecular structure, and individual branches of the molecules during particle size reduction (grinding). Hammer milling caused greater degradation to starch granules than cryogenic milling when the grains were ground to a similar volume-median diameter. Molecular degradation of starch was not evident in the cryogenically milled flours, but it was observed in the hammer-milled flours with preferential cleavage of longer (amylose) branches. This can be attributed to the increased grain brittleness and fracturability at cryogenic temperatures, reducing the mechanical energy required to diminish the grain size and thus reducing the probability of chain scission. The results indicate, for the first time, that branching, whole molecule, and granule structures of starch can be independently altered by varying grinding conditions, such as grinding force and temperature.

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Crossref · 10.1021/jf105021r

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Authors
Tran, T. T. B., Shelat, K. J., Tang, D., Li, E., Gilbert, R. G., & Hasjim, J.
Affiliations
The University of Queensland (AU)
Corresponding author
Hasjim, Jovin
Venue
Journal of Agricultural and Food Chemistry
Published
2011-03-23
Volume
59
Issue
8
Pages
3964-3973
ISSN
  • 0021-8561 (ISSN-L)
  • 1520-5118
OpenAlex
W2073362904
Cited by
177
References
35
Citations by year
2026: 17 · 2025: 10 · 2024: 8 · 2023: 11 · 2022: 6 · 2021: 13 · 2020: 18 · 2019: 9 · 2018: 14 · 2017: 14 · 2016: 10 · 2015: 21 · 2014: 12 · 2013: 9 · 2012: 4
FWCI
7.67
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Agricultural and Food Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Food composition and properties
  • Physical Sciences › Engineering › Mechanical Engineering › Agricultural Engineering and Mechanization
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Proteins in Food Systems
Keywords
rice flour, starch degradation, starch granule structure, amylose, starch branching, cryogenic grinding, hammer milling, particle size reduction, chain scission, grinding temperature, grinding force
MeSH terms
Flour, Microscopy, Electron, Scanning, Particle Size, Probability, Oryza, Starch, Molecular Structure

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