title: Buckwheat and Millet Affect Thermal, Rheological, and Gelling Properties of Wheat Flour.
abstract: Buckwheat (BF) and millet (MF) are recommended as healthy foods due to their unique chemical composition and health benefits. This study investigated the thermal and rheological properties of BF-WF (wheat flour) and MF-WF flour blends at various ratios (0:100 to 100:0). Increasing BF or MF concentration led to higher cold paste viscosity and setback viscosity of pasting properties gel adhesiveness, storage modulus (G') and loss modulus (G″) of dynamic oscillatory rheology, and yield stress (σ0 ) of flow curve of WF. BF and MF addition decreased peak viscosity and breakdown of pasting, gel hardness, swelling volume, and consistency coefficient (K) of flow curve of WF. Thermal properties of the blends appeared additive of that of individual flour. Nonadditive effects were observed for some property changes in the mixtures, and indicated interactions between flour components. This may provide a physicochemical basis for using BF and MF in formulating novel healthy products.
authors.affiliation: Glyn O. Philips Hydrocolloid Research Centre, Hubei Univ. of Technology, Wuhan, 430068, China.|School of Biological Sciences, Univ. of Hong Kong, Pokfulam Road, Hong Kong.|School of Chemical Sciences, Univ. of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
authors.forename: Kao
authors.initials: K
authors.lastname: Wu
authors.affiliation: Glyn O. Philips Hydrocolloid Research Centre, Hubei Univ. of Technology, Wuhan, 430068, China.
authors.forename: Renyou
authors.initials: R
authors.lastname: Gan
authors.affiliation: Glyn O. Philips Hydrocolloid Research Centre, Hubei Univ. of Technology, Wuhan, 430068, China.
authors.forename: Shuhong
authors.initials: S
authors.lastname: Dai
authors.affiliation: Life Science and Technology Center, China Natl. Seed Group Co., Ltd, Wuhan, 430075, China.
authors.forename: Yi-Zhong
authors.initials: YZ
authors.lastname: Cai
authors.affiliation: Glyn O. Philips Hydrocolloid Research Centre, Hubei Univ. of Technology, Wuhan, 430068, China.|School of Biological Sciences, Univ. of Hong Kong, Pokfulam Road, Hong Kong.
authors.forename: Harold
authors.initials: H
authors.lastname: Corke
authors.affiliation: School of Chemical Sciences, Univ. of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
authors.forename: Fan
authors.initials: F
authors.lastname: Zhu
mesh_terms: D002523:Edible Grain; D019612:Fagopyrum; D005433:Flour / Q000032:analysis*; D005511:Food Handling / Q000379:methods*; D005782:Gels; D006801:Humans; D000066928:Millets; D028321:Plant Preparations; D012212:Rheology; D013696:Temperature; D014908:Triticum; D014783:Viscosity
chemical_list: D005782:Gels; D028321:Plant Preparations
keywords: buckwheat; composite flour; gel texture; gelatinization; millet; pasting; rheology