Viscosity and compressibility of diacylglycerol under high pressure

Aleksander Malanowski , Aleksander Rostocki , M. Szalewski , A. Balcerzak , Rafał Kościesza , Rafał Tarakowski , S. Ptasznik , Ryszard Siegoczyński


The influence of high pressure on viscosity and compressibility of diacylglycerol (DAG) oil has been presented in this paper. The investigated DAG oil was composed of 82% of DAGs and 18% TAGs (triacylglycerols). The dynamic viscosity of DAG was investigated as a function of the pressure up to 400 MPa. The viscosity was measured by means of the surface acoustic wave method, where the acoustic waveguides were used as sensing elements. As the pressure was rising, the larger ultrasonic wave attenuation was observed, whereas amplitude decreased with the liquid viscosity augmentation. Measured changes of physical properties were most significant in the pressure range near the phase transition. Deeper understanding of DAG viscosity and compressibility changes versus pressure could shed more light on thermodynamic properties of edible oils. © 2013 Copyright Taylor and Francis Group, LLC.
Author Aleksander Malanowski (FP / SRD)
Aleksander Malanowski,,
- Structural Research Division
, Aleksander Rostocki (FP / SRD)
Aleksander Rostocki,,
- Structural Research Division
, M. Szalewski
M. Szalewski,,
, A. Balcerzak
A. Balcerzak,,
, Rafał Kościesza (FP / SRD)
Rafał Kościesza,,
- Structural Research Division
, Rafał Tarakowski (FP / SRD)
Rafał Tarakowski,,
- Structural Research Division
, S. Ptasznik
S. Ptasznik,,
, Ryszard Siegoczyński (FP / SRD)
Ryszard Siegoczyński,,
- Structural Research Division
Journal seriesHigh Pressure Research, ISSN 0895-7959
Issue year2013
Publication size in sheets0.5
ASJC Classification3104 Condensed Matter Physics
Languageen angielski
Viscosity and compressibility of diacylglycerol under high pressure.pdf 416.73 KB
Score (nominal)25
Score sourcejournalList
ScoreMinisterial score = 25.0, 30-01-2020, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 30-01-2020, ArticleFromJournal
Publication indicators Scopus Citations = 3; WoS Citations = 2; Scopus SNIP (Source Normalised Impact per Paper): 2013 = 0.646; WoS Impact Factor: 2013 = 0.926 (2) - 2013=1.087 (5)
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