Open AccessDescription of atmospheric freeze-drying of brown seaweeds (Saccherina Latissima) with respect to thermal properties and phase transitions
Author(s) -
Ignat Tolstorebrov,
Trygve Magne Eikevik,
Inna Petrova,
Michael Bantle
Publication year - 2018
Language(s) - English
Resource type - Conference proceedings
DOI - 10.4995/ids2018.2018.7696
Subject(s) - freeze drying , water content , phase transition , freezing point , materials science , melting point , glass transition , chemistry , thermodynamics , chromatography , composite material , polymer , geology , physics , geotechnical engineering
Thermal properties of brown seaweeds (Saccharina latissima) were determined using DSC technique in the temperature range between -150.0 and 50.0 °C. The following phase transitions were detected: glass transitions, incipient point of ice melting and freezing point. The ice content and amount of unfrozen water was detected by analysis of the melting peak. The ice content reduction in the product was predicted for different moisture contents and temperatures for atmospheric freeze-drying processKeywords: brown seaweeds, ice fraction, freeze-drying, glass transition