- Title
- Effects of ultrasound on glass transition temperature of freeze-dried pear (Pyrus pyrifolia) using DMA thermal analysis
- Creator
- Islam, Nahidul; Zhang, Min; Liu, Huihua; Xinfeng, Cheng
- Date
- 2015
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/81483
- Identifier
- vital:8250
- Identifier
-
https://doi.org/10.1016/j.fbp.2014.02.004
- Identifier
- ISSN:0960-3085
- Abstract
- The effect of ultrasound pretreatment at various power (360 W, 600 W and 960 W, frequency 20 kHz) on the glass transition temperature of freeze dried pear (Pyrus pyrifolia) has been studied. DMA temperature plots were divided into four sections (A - glassy region, B - transition region, C - Rubbery plateau region and D - terminal region) with the aim to analyze their properties changed with sonication. Under the same freeze drying condition, with the increase in ultrasonic power, dried pear showed higher glass transition in terms of storage modulus, loss modulus and loss tangent peak. Also a decrease in a
- Publisher
- Institution of Chemical Engineers
- Relation
- Food and Bioproducts Processing Vol. 94, no. (2015), p. 229-238
- Rights
- © 2014 The Institution of Chemical Engineers. Published by Elsevier B.V.
- Rights
- This metadata is freely available under a CCO license
- Subject
- 0904 Chemical Engineering; 0908 Food Sciences; 1003 Industrial Biotechnology; SEM; Low temperature drying; Scanning electron microscopy; Temperature; Textures; Thermoanalysis; Ultrasonics; DMA; Freeze drying; Porous structures; Rubbery plateaus; Terminal regions; Texture profile; Ultrasonic power; Ultrasound pre treatments; Glass transition; Pyrus pyrifolia
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