Spectroscopic characterisation of acidified milk powders
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Spectroscopic characterisation of acidified milk powders. / Czaja, Tomasz Pawel; Vickovic, Dolores; Pedersen, Søren Juhl; Hougaard, Anni Bygvrå; Ahrné, Lilia.
I: International Dairy Journal, Bind 142, 105664, 2023.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Spectroscopic characterisation of acidified milk powders
AU - Czaja, Tomasz Pawel
AU - Vickovic, Dolores
AU - Pedersen, Søren Juhl
AU - Hougaard, Anni Bygvrå
AU - Ahrné, Lilia
N1 - Publisher Copyright: © 2023 The Author(s)
PY - 2023
Y1 - 2023
N2 - The production of acidified milk powders by spray drying is challenging due to particle deposition on the dryer surface, which reduces yield, and may impair product quality. The composition, especially lactic acid concentration, and powder particle surface properties, are important in this context. This study explored the possibility of monitoring the drying process using vibrational spectroscopy techniques such as near-infrared (NIR), attenuated total reflection (ATR) and Raman imaging. The results showed that these techniques provide complementary qualitative measurements regarding the composition of acidified milk powders that are useful for understanding and controlling their production. Raman imaging revealed lactic acid surface composition providing better understanding of wall deposition during spray drying. NIR and ATR provided information about the composition and molecular structural changes in powders occurring during the prolonged exposure of powder to the high drying temperature, which may be applicable for on-line and at-line process control, respectively.
AB - The production of acidified milk powders by spray drying is challenging due to particle deposition on the dryer surface, which reduces yield, and may impair product quality. The composition, especially lactic acid concentration, and powder particle surface properties, are important in this context. This study explored the possibility of monitoring the drying process using vibrational spectroscopy techniques such as near-infrared (NIR), attenuated total reflection (ATR) and Raman imaging. The results showed that these techniques provide complementary qualitative measurements regarding the composition of acidified milk powders that are useful for understanding and controlling their production. Raman imaging revealed lactic acid surface composition providing better understanding of wall deposition during spray drying. NIR and ATR provided information about the composition and molecular structural changes in powders occurring during the prolonged exposure of powder to the high drying temperature, which may be applicable for on-line and at-line process control, respectively.
U2 - 10.1016/j.idairyj.2023.105664
DO - 10.1016/j.idairyj.2023.105664
M3 - Journal article
AN - SCOPUS:85152122825
VL - 142
JO - International Dairy Journal
JF - International Dairy Journal
SN - 0958-6946
M1 - 105664
ER -
ID: 347889595