TY - JOUR
T1 - Solute inclusion during progressive freeze concentration
T2 - A state diagram approach
AU - Vuist, Jan Eise
AU - Schutyser, Maarten A.I.
AU - Boom, Remko M.
N1 - Publisher Copyright:
© 2022 The Authors
PY - 2022/5
Y1 - 2022/5
N2 - We propose a conceptual model for progressive freeze concentration, which predicts solute loss through inclusion in the ice based on the system's phase behaviour as illustrated in a state diagram. We compare the outcomes of the model for sodium chloride, sucrose, and bovine serum albumin (BSA). For ice growth rates in the order 10−2 μm/s there was no solute inclusion for sodium chloride or sucrose, but above this range, local super-cooling gives rise to a freezing zone. In this freezing zone ice and solution co-exist and the resulting uneven advancement of the ice causes inclusions. The model predicts that for macromolecular solutions such as BSA, no inclusion will take place through the proposed mechanism.
AB - We propose a conceptual model for progressive freeze concentration, which predicts solute loss through inclusion in the ice based on the system's phase behaviour as illustrated in a state diagram. We compare the outcomes of the model for sodium chloride, sucrose, and bovine serum albumin (BSA). For ice growth rates in the order 10−2 μm/s there was no solute inclusion for sodium chloride or sucrose, but above this range, local super-cooling gives rise to a freezing zone. In this freezing zone ice and solution co-exist and the resulting uneven advancement of the ice causes inclusions. The model predicts that for macromolecular solutions such as BSA, no inclusion will take place through the proposed mechanism.
KW - Dewatering
KW - Progressive freeze concentration
KW - Solute inclusion
KW - State diagram
U2 - 10.1016/j.jfoodeng.2021.110928
DO - 10.1016/j.jfoodeng.2021.110928
M3 - Article
AN - SCOPUS:85123923898
SN - 0260-8774
VL - 320
JO - Journal of Food Engineering
JF - Journal of Food Engineering
M1 - 110928
ER -