Journals / Turkish Journal of Engineering and Environmental Sciences / 2001 / Cilt: 25 - Sayı: 6
Changes in Flow Behavior of Whey Protein Based Adible Coating Solutions with Concentration
- Pages
- 595–599
- DOI
- —
Abstract
The flow behavior of an edible coating solution prepared from whey protein isolate (WPI) and glycerol (G) as plasticizer was studied using a HAAKE rheometer. The parameters used were concentration (15.5, 18.0, 19.5, and 21.5oBrix WPI-G (8, 9, 10 and 11% w/w WPI, respectively)) and temperature (5, 10, 20, and 30oC). It was observed that with increasing concentration of WPI the flow behavior changed from Newtonian to pseudoplastic, to a degree retarded by temperature. For industrial applications, the use of 10% WPI solution below 30oC seemed to be quite satisfactory.
Özet
The flow behavior of an edible coating solution prepared from whey protein isolate (WPI) and glycerol (G) as plasticizer was studied using a HAAKE rheometer. The parameters used were concentration (15.5, 18.0, 19.5, and 21.5oBrix WPI-G (8, 9, 10 and 11% w/w WPI, respectively)) and temperature (5, 10, 20, and 30oC). It was observed that with increasing concentration of WPI the flow behavior changed from Newtonian to pseudoplastic, to a degree retarded by temperature. For industrial applications, the use of 10% WPI solution below 30oC seemed to be quite satisfactory.