in this study, variations of the pasting properties, swelling power and solubility of two rice starches, low amylose (8.7%) and high amylose (26%) at two citric acid concentrations (0 and 0.01 m) was investigated. the results showed that the peak viscosity and breakdown viscosity of rice starch decreased significantly (p 0.05).the swelling power and solubility of both starch pastes with and wit...

Sago starch is usually chemically modified to overcome and improve the unstable properties of native sago starch during processing. In this study, sago starch was treated in hydrochloric acid in the presence of methanol, ethanol and 2-propanol at 45C for 1 hour. Granule size, granular structure and solubility of the modified starch were investigated. Results showed that recovery yields of the m...

Several physical and chemical treatments were employed to modify Taro (Colocasia esculenta) starch. Th e eff ects of pH and heating temperature on their swelling powers and solubilities were studied. At 95 oC, heat-moisture treated, oxidized and acetylated starches were more soluble, while cross-linked starch was less soluble as compared to raw starch. Heat-moisture treated and chemically modif...

Using a sedimentation method, the extracted starch from Dioscorea hispida tuber was characterized for their morphological, thermal and other physicochemical properties such as total starch content, moisture content, pH, water binding capacity (WBC), solubility and swelling power. The starch content extracted from the tuber was 11.46% with the WBC and moisture content were 107% and 249% respecti...

Starch was isolated from cocoyam (Xanthosoma sagittifolium). It was further modified by acetylation using NaOH and NaHCO3 at room temperature (28±3 oC). The pasting and physicochemical properties of the native and modified starches were then studied. Pasting properties of the alkaline modified cocoyam starches showed higher peak viscosities (245.92-256.96 RVU) compared to low peak viscosity (21...

Cereal Chem. 67(6):529-532 The water solubilization and apparent molecular weights of starch evident, the HPSEC-determined water solubility increased with decreasing polymers from extruded corn starch and extruded decorticated sorghum extrusion moisture. Decreased water solubility of corn starch, however, flours were characterized by aqueous high-performance size-exclusion was caused by extrusi...

Attempts were made to explore the potential of hybrid sorghum (Variety CSH-9) to prepare starch by wet milling process. Starch yield from sorghum found to be 72.5 percent. The starch so prepared was further utilized for the production of carboxymethyl starch (CMS) derivative. The reaction conditions during chemical modification of sorghum starch such as reaction time and monochloroacetic (MCA) ...

Background and Objectives: As chemical methods are commonly used to modify the starch properties, in this study, the influence of chemical modification using POCl3 on the rice starch function was evaluated. Materials and Methods: Rice starch was isolated by alkaline extraction of the proteins and cross-linked rice starches were prepared from reactions between native rice starch (low and high a...

the effects of zinc oxide nanorod (zno-n) incorporation on thephysicochemical properties of tapioca starch / bovin gelatin composite film such as water absorption capacity (wаc), water solubility and permeability to water vapour (wvp) were investigated. in this search, zno-n was homogenized by sonication and added into tapioca starch / bovine gelаtin dispersions аt different concentrations (e.g...