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Production and Properties of Starch Phosphates Produced by the Extrusion Process
Author(s) -
Salay Elisabete,
Ciacco Cesar F.
Publication year - 1990
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.19900420106
Subject(s) - extrusion , plastics extrusion , absorption of water , starch , solubility , corn starch , chemistry , chemical engineering , materials science , sodium , nuclear chemistry , food science , composite material , organic chemistry , engineering
Corn starch was phosphated on a Brabender single screw extruder at different extrusion temperatures, sodium tripolyphosphate (STP) concentration and pH of the medium. The highest degree of substitution (DS) was obtained at extrusion temperature of 200°C, STP concentration equal or superior of 1.4g/100mL of water and pH of 8.5. The DS was related to paste clarity while the extrusion process, to the water absorption index and water solubility index, independently of the DS.