Characterization of Cassava Starch Extruded Sheets Incorporated with Tucuma Oil Microparticles

Author(s)

Santos, Priscila Dayane de Freitas ; Siqueira, Larissa do Val ; Tadini, Carmen Cecilia ; Favaro-Trindade, Carmen Silvia

• Document type: Journal article
• Source: PROCESSES; v. 11, n. 3, p. 15-pg., 2023-03-01.

Abstract

The application of biopolymers and feasible technologies to obtain sheets is crucial for the large-scale production of food packages and for reducing plastic pollution. Additionally, the inclusion of additives in sheets can affect and improve their properties. This work aimed to incorporate tucuma oil (TO) and TO microparticles produced by spray drying (SD), spray chilling (SC), and their combination (SDC) into extruded cassava starch sheets and to evaluate the effect of such addition on their physical, optical, and mechanical properties. Gum Arabic and vegetable fat were used as wall materials for SD and SC/SDC, respectively. The sheets enriched with tucuma oil (FO) and the microparticles produced by SD, SC and SDC (FSD, FSC, and FSDC, respectively) presented yellow color (hue angle around 90 degrees) and higher opacity (11.6-25.3%) when compared to the control (6.3%). All sheets showed high thickness (1.3-1.8 mm), and the additives reduced the water solubility of the materials (from 27.11% in the control to 24.67-25.54% in enriched samples). The presence of large SDC particles, as evidenced by Scanning Electron Microscopy (SEM), caused discontinuity of the sheet structure and decreased mechanical strength of the FSDC. One may conclude that potential active packages were obtained by extrusion of cassava starch sheets added with pure and encapsulated TO. (AU)

• FAPESP's process: 19/21700-7 - Mathematical modeling and experimental validation of an extrusion process to produce biodegradable cassava starch pellets
• Grantee: Larissa do Val Siqueira
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 16/12385-2 - Development of low density polymer films for smart packaging
• Grantee: Carmen Cecilia Tadini
• Support Opportunities: Multi-user Equipment Program