Back to Search
Start Over
Thermal properties of fruit juices as a function of concentration and temperature determined using the photopyroelectric (PPE) method
- Source :
- Journal of the Science of Food and Agriculture. 79:1361-1366
- Publication Year :
- 1999
- Publisher :
- Wiley, 1999.
-
Abstract
- The photopyroelectric (PPE) method is proposed as a new technique for thermal characterisation of fruit juices. By combining different geometries and experimental conditions, the PPE method was shown capable of providing temperature-dependent (between 0 and 70 °C) values of thermophysical parameters (thermal diffusivity, thermal effusivity, thermal conductivity and volume specific heat) for juices having different Brix index. The computer-controlled PPE cell allowed stable temperature variation rates and continuous signal acquisition. The experimental data were used to develop empirical models and hence prediction equations for all the thermal parameters. © 1999 Society of Chemical Industry
Details
- ISSN :
- 10970010 and 00225142
- Volume :
- 79
- Database :
- OpenAIRE
- Journal :
- Journal of the Science of Food and Agriculture
- Accession number :
- edsair.doi...........5db89d06ac4f62395932d4a367eda8aa
- Full Text :
- https://doi.org/10.1002/(sici)1097-0010(199908)79:11<1361::aid-jsfa372>3.0.co;2-3