Abstract
Study explains the influence of thermal properties on the atmospheric freeze-drying process of brown seaweeds in fluidized bed, especially on fluidization, that is important for efficient and rapid drying. Two different types of raw materials (washed and raw) were investigated using differential scanning calorimetry technique. Raw seaweeds contained high amount of salts and water soluble fraction on the surface, that influences significantly the amount of unfrozen water at low temperatures (up to 11.6 % w.b. at -25.0 °C), while washed seaweeds showed almost complete freezing without significant depressing of freezing point. The diagram that shows the amount of ice with respect to temperature and total moisture content was obtained. The efficient drying process can be obtained using washed seaweeds, which do not contain water-soluble elements on the surface, while raw seaweeds showed agglomeration of particles during drying, due to significant depression of freezing point.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
