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KMID : 1024619980180010035
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Food Science of Animal Resources
1998 Volume.18 No. 1 p.35 ~ p.41
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Changes of Rheological Properties of Yoghurt by Different Kinds Stabilizers
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Choi S.- H.
Chang W. K.
Jung J. K.
Oh D. K.
Lee B. O.
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Abstract
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The objective of this study was to examine the changes of physical properties by additions of different kinds of stabilizers milk proteins concentration, when stored at 4 or 20 for yoghurt. the results were summarized as follows: 1. Addition of 2% carboxyl methyl cellulose and carrageenan, gelation 0.4%, pectin and starch 0.6%, and carrageenan & pectin 0.8% in the manufacture of yoghurt increased the viscosity, water-holding capacity and protein hydration of yoghurt. 2. Addition of 3% skim milk powder, Ca-caseinate or Na-caseinate 0.6% increased the viscosity, water-holding capacity and protein hydration of yoghurt. 3. Twenty five percent of evaporation of milk promoted to build up the optimal structure of the micelles of yoghurt and improved viscosity, water-holding capacity and protein hydration of yoghurt. 4. Addition of stabilizers to yoghurt showed an increase of viscosity, water-holding capacity and protein hydration when compared with non-addition of stabilizers to yoghurt at 4, 20 storage for 12hrs, 96hrs followed by the decrease of it.
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KEYWORD
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yoghurt, stabilizer, viscosity, water-holding capacity, protein hydration
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