The use of hydrogel structures in production of extruded rice and investigation of its qualitative characteristics

Abstract The aim of this study was to investigate the quality parameters of extruded rice containing hydrogel and comparing with natural rice (Hashemi variety rice). Extruded rice was produced with composite hydrogel (gellan, xanthan and sodium alginate) at the concentrations of 0.0 (control sample)...

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Bibliographic Details
Main Authors: Sara Naji‐Tabasi, Mostafa Shahidi‐Noghabi, Atena Modiri Dovom, Maryam Davtalab
Format: Article
Language:English
Published: Wiley 2023-10-01
Series:Food Science & Nutrition
Subjects:
Online Access:https://doi.org/10.1002/fsn3.3466
Description
Summary:Abstract The aim of this study was to investigate the quality parameters of extruded rice containing hydrogel and comparing with natural rice (Hashemi variety rice). Extruded rice was produced with composite hydrogel (gellan, xanthan and sodium alginate) at the concentrations of 0.0 (control sample), gellan (0.5%)‐alginate (0.5%) (GA1), gellan (1%)‐alginate (1%) (GA2), gellan (0.5%)‐alginate (0.5%)‐xanthan (0.1%) (GAX 1%), and gellan (1%)‐alginate (1%)‐xanthan (0.2%) (GAX2%). The use of hydrogels had no significant effect on moisture content, ash content, cooking time, and color properties of extruded rice (p ≥ .05). In contrast, hydrogel significantly increased water absorption ratio (WAR), water solubility index (WSI), water absorption index (WAI), and textural properties (p ˂ .05) of extruded rice. This observation supports the highest score found for extruded rice containing GA2% and GAX2% in sensory properties, which were similar to natural rice. GA2% rice sample showed the similar texture characteristic, cooking feature, and color parameter to natural rice, ultimately, showing better organoleptic properties.
ISSN:2048-7177