Year: 2024 | Month: June | Volume 14 | Issue 1
Effect of Concentration and Hydrocolloids Formation on Rheological Properties of Gelatinized Cassava Starch and Jackfruit Seeds Starch Dispersions
Sagar Nagnath Hundekari
Shrikant Baslingappa Swami
DOI:June
Abstract:
Rheological properties of gelatinized cassava starch dispersions at different starch concentrations (5.0, 10.0, 15.0, 20.0, and 25.0% w/v) with hydrocolloids i.e. sorbitol and glycerol were experimentally determined using a Brookfield Viscometerat various shear rate 0.08, 0.4, 0.66, 1.6, 2.66, 3.192, 5.32, 7.98, 13.3, 15.96 and 26.6(1/s). Starch dispersions showed shearthinning behavior. All the fluid exhibited pseudoplastic nature (n<1) Herschel-Bulkley model was well fitted to the experimental data with r2 ≥ 0.986 & MSE ≤ 134269.230. The corresponding parameters were correlated with starch concentration. Rheological properties of gelatinized jackfruit seed starch dispersions at different concentrations (5.0, 10.0, 15.0, 20.0, and 25.0% w/v) with hydrocolloids i.e. sorbitol and glycerol were experimentally determined using a Brookfield Viscometer at various shear rate 0.08, 0.4, 0.66, 1.6, 2.66, 3.192, 5.32, 7.98, 13.3, 15.96 and 26.6 (1/s). Starch dispersions showed shear-thinning behavior. All the fluid exhibited pseudoplastic nature (n<1) Herschel-Bulkley model was fitted to the experimental data with r2 ≥ 0.900 & MSE ≤ 2.4316 × 105 and the corresponding parameters were correlated with starch concentration.
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