TY - JOUR
T1 - High viscosity change of corn starch suspensions prepared from granules quick treated with cold plasma
AU - López-Echevarría, Gerardo
AU - Mendez-Montealvo, Guadalupe
AU - Nieto-Pérez, Martin
AU - Velazquez, Gonzalo
AU - Herrera-Gomez, Alberto
AU - Huerta-Ruelas, Jorge
N1 - Publisher Copyright:
© 2022 Wiley-VCH GmbH.
PY - 2023/2
Y1 - 2023/2
N2 - This work evaluates the effect of cold plasma treatment with exposure times of 5, 10, and 15 min, on the granule properties and the rheological changes of corn starch suspensions. The exposure to plasma led to the deposition of a thin coat with a thickness proportional to treatment time, thereby improving the hydrophobic state of starch granules before and after the paste or gel conformation. Changes in rheological properties are observed after only 5 min of cold plasma treatment. A small effect is detected at a molecular level, as shown by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction, and differential scanning calorimetry (DSC). The proposed treatment is an eco-friendly method to obtain hydrophobic corn starch with no structural changes. The paste formation test showed a reduction of 48% of original viscosity for native starch.
AB - This work evaluates the effect of cold plasma treatment with exposure times of 5, 10, and 15 min, on the granule properties and the rheological changes of corn starch suspensions. The exposure to plasma led to the deposition of a thin coat with a thickness proportional to treatment time, thereby improving the hydrophobic state of starch granules before and after the paste or gel conformation. Changes in rheological properties are observed after only 5 min of cold plasma treatment. A small effect is detected at a molecular level, as shown by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction, and differential scanning calorimetry (DSC). The proposed treatment is an eco-friendly method to obtain hydrophobic corn starch with no structural changes. The paste formation test showed a reduction of 48% of original viscosity for native starch.
KW - cold plasma
KW - dielectric barrier discharges (DBD)
KW - hexamethyldisiloxane (HMDSO)
KW - hydrophobic coatings
KW - surface modification
UR - http://www.scopus.com/inward/record.url?scp=85141527871&partnerID=8YFLogxK
U2 - 10.1002/ppap.202200113
DO - 10.1002/ppap.202200113
M3 - Artículo
AN - SCOPUS:85141527871
SN - 1612-8850
VL - 20
JO - Plasma Processes and Polymers
JF - Plasma Processes and Polymers
IS - 2
M1 - 2200113
ER -