Non-linear Rheological Properties of Soy Protein Isolate Dispersions and Acid-Induced Gels
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Chong-hao Bi
,
Zhi-gang Huang
Abstract
This study presents the non-linear viscoelastic properties of soy protein isolate (SPI) dispersions and acid-induced gels to considerable detail. The storage (G′) and loss (G′′) moduli of SPI dispersions showed Type III (week strain overshoot) and Type IV (strong strain overshoot) networks when the strain amplitudes varied between 0.01 and 1.00 and 1.00 to 100.00, respectively. In the case of acid-induced SPI gels the rheological parameters showed the characteristics of Type I (strain thinning) network. Fourier transform rheological experiments showed that the higher harmonic curves obtained u strain sweep test showed quite different shapes for SPI dispersions and gels. In the case of dispersions, the highest I3/1 (0.101) occurred at the strain amplitude of 0.40 and then decreased to below 0.02. In the case of acid-induced SPI gels, the I3/1 value began to be appreciable at the strain amplitude of 0.1 increased rapidly to its highest value (I3/1=0.05).
Funding statement: This research was supported by The National Key Research and Development Program of China (2016YFD0701801) and Commonweal Guild Grain Scientific Research Program of China (201513004).
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Artikel in diesem Heft
- Articles
- A Method to Analyze the Protein Denaturation of Whole Quail Egg Based on in situ NMR and MRI
- Non-linear Rheological Properties of Soy Protein Isolate Dispersions and Acid-Induced Gels
- Finite Element modeling of Mechanical Loading-Pumpkin Peel and flesh
- Frequency Sweep Test and Modal Analysis of Watermelon during Transportation
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- The Impact of Heat-Moisture Treatment on Physicochemical Properties and Retrogradation Behavior of Sweet Potato Starch
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- Hot-Melt Fluidized Bed Encapsulation of Citric Acid with Lipid
- Optimization of Enzyme-Assisted Extraction of Carotenoids Antioxidants from Cordyceps militaris Using Response Surface Methodology
- Optimization of Ultrasonic-Assisted Extraction for Pinocembrin from Flospopuli Using Response Surface Methodology
