Physical properties of wheat flour composites dry-coated with microparticulated soybean hulls and rice flour and their use for low-fat doughnut preparation

Ju Hun Lee, Ah Ra Cho, Joo Yeon Hong, Dong June Park, Seung Taik Lim

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Air-classified wheat flour was dry-coated with microparticulated rice flour (30%, db) and/or microparticulated soybean hulls (up to 10%, db) using a hybridization system, and the physical properties of the dry-coated wheat flour were examined. The composite wheat flours exhibited the higher water-holding capacity but lower swelling power and oil-holding capacity than their counterpart mixtures. In pasting viscosity, the composites of wheat and rice flours had substantially lower values for peak viscosity and breakdown than did pure wheat flour. The incorporation of soybean hulls to the composites of wheat and rice flours further reduced the peak viscosity. The composites with rice flour and soybean hulls showed slightly higher melting (gelatinization) temperatures but lower melting enthalpy compared to the counterpart mixtures. By using the composite flours for the deep-fat fried doughnut preparation, the oil uptake could be substantially reduced by approximately 30%, in comparison to pure wheat flour or the mixture samples. The composite wheat flours with microparticulated rice flour and soybean hulls produced dough matrices with improved compactness and cell structure, which were attributed to the reduced fat uptake during frying.

Original languageEnglish
Pages (from-to)636-643
Number of pages8
JournalJournal of Cereal Science
Volume56
Issue number3
DOIs
Publication statusPublished - 2012 Nov 1

Fingerprint

doughnuts
soybean hulls
rice flour
Flour
Soybeans
wheat flour
Triticum
physical properties
Physical properties
Fats
Composite materials
lipids
Viscosity
viscosity
Oils
melting
uptake mechanisms
oils
Freezing
Swelling

Keywords

  • Deep-fat frying
  • Doughnut
  • Dry particle coating
  • Rice flour
  • Soybean hull

ASJC Scopus subject areas

  • Food Science
  • Biochemistry

Cite this

Physical properties of wheat flour composites dry-coated with microparticulated soybean hulls and rice flour and their use for low-fat doughnut preparation. / Lee, Ju Hun; Cho, Ah Ra; Hong, Joo Yeon; Park, Dong June; Lim, Seung Taik.

In: Journal of Cereal Science, Vol. 56, No. 3, 01.11.2012, p. 636-643.

Research output: Contribution to journalArticle

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