Temperature-dependent etherification of cassava starch with CHPTAC for cationic starch production
2024
Sri Rahayu | Basuki Wirjosentono | Evi Oktavia | Cut Fatimah Zuhra | Khatarina Meldawati Pasaribu | Averroes Fazlur Rahman Piliang | Nico Setyawan Sihotang | Juliati Br Tarigan | Jonathan Siow | Ronn Goei | Alfred Iing Yoong Tok | Saharman Gea
This research explores utilizing abundant and economical cassava as a raw material for producing cationic starch in Indonesia. Cationic starch was synthesized by etherifying cassava starch with CHPTAC monomer at 50–90 °C. Successful cationic modification was confirmed via FTIR and NMR spectra. Characterization revealed the 80 °C product exhibited optimal properties: high degree of substitution (0.35) and reaction efficiency (98 ± 1.2 %). The amorphous form of the 80 °C product reduced its thermal resistance. This economically viable process uses readily available cassava to produce high-value cationic starch, currently an expensive imported product, demonstrating potential to enhance domestic production and reduce import reliance.
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