International Journal of Food and Fermentation Technology
  • Year: 2024
  • Volume: 14
  • Issue: 1

Effect of concentration and hydrocolloids formation on rheological properties of gelatinized cassava starch and jackfruit seeds starch dispersions

1Department of Agricultural Process Engineering, College of Agricultural Engineering and Technology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist Ratnagiri (Maharashtra State), India

2Department of Post-Harvest Engineering, Post-Graduate Institute of Post-harvest Technology and Management, Killa-Roha, Dist: Raigad (Maharashtra State) (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli-Campus Roha) India

*Corresponding author: swami_shrikant1975@yahoo.co.in

Online published on 29 November, 2024.

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 𢙀 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 𢙀 2.4316 × 105 and the corresponding parameters were correlated with starch concentration.

Keywords

Cassava starch, Jackfruit seeds starch, Viscosity and rheology