Research Article Open Access

Amphoteric Starch in Simultaneous Process Preparation with Box-Behnken Design for Optimal Conditions

Sopa Cansee, Juntanee Uriyapongson, Commueng Watyotha, Thavachai Thivavarnvongs and Jatuphong Varith

Abstract

Cassava starch was chemically modified to produce an amphoteric starch. The amphoteric starch was prepared in a simultaneous process which was evaluated in relation to four factors: temperature (45-55 °C), 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC, 4-12%) and sodium tripolyphosphate (STP, 2-8%) concentrations, and reaction time (2-6 h). The extent of amphoteric starch produced was determined by the degree of substitution (DS) of the nitrogen content and percentage of phosphorus content. In addition, a quantitative response of yield and whiteness as well as pasting characteristics were tested. Response surface analysis showed that the DS (0.01-0.05) increased with increasing temperature, CHPTAC and reaction time. The phosphorus content (0.09-0.34%) followed a parabolic shape with all of the factors. Consequently, the response surface methodology appears to be a powerful technique to determine the optimal conditions for the production of amphoteric starches.

American Journal of Applied Sciences
Volume 5 No. 11, 2008, 1535-1542

DOI: https://doi.org/10.3844/ajassp.2008.1535.1542

Submitted On: 3 December 2007 Published On: 30 November 2008

How to Cite: Cansee, S., Uriyapongson, J., Watyotha, C., Thivavarnvongs, T. & Varith, J. (2008). Amphoteric Starch in Simultaneous Process Preparation with Box-Behnken Design for Optimal Conditions . American Journal of Applied Sciences, 5(11), 1535-1542. https://doi.org/10.3844/ajassp.2008.1535.1542

  • 2,414 Views
  • 3,909 Downloads
  • 3 Citations

Download

Keywords

  • Amphoteric starch
  • Box-Behnken design
  • Response surface methodology