4.1 Article

Physicochemical Characterization of Arrowroot Starch (Maranta arundinacea Linn) and Glycerol/Arrowroot Starch Membranes

Journal

INTERNATIONAL JOURNAL OF FOOD ENGINEERING
Volume 10, Issue 4, Pages 727-735

Publisher

WALTER DE GRUYTER GMBH
DOI: 10.1515/ijfe-2014-0122

Keywords

Maranta arundinacea Linn; starch; glycerol membranes; food industrial applications

Funding

  1. Universidad Nacional de Colombia [QUIPU 2010100729, 2020100626]
  2. FAPESP [2012/24047-3]

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In the current work, physicochemical properties of arrowroot starch and thermal properties of glycerol/arrowroot starch membranes were investigated. Arrowroot starch exhibited high purity (starch content > 99%) with amylose content > 40% and granule size dispersion between 29 and 126 mu m. Arrowroot starch has a gelatinization temperature of 63.94 degrees C and a B-type crystalline structure. Arrowroot starch, in combination with three levels of glycerol, was used to manufacture membranes by casting method. Increasing the plasticizer effect due to glycerol content increased the water weight loss of the membranes at temperatures higher than 110 degrees C. Additionally, the onset temperature of the endothermic peak observed by differential scanning calorimetry and associated to water removal from the membranes changed with glycerol content. Physicochemical and thermal properties of arrowroot starch and glycerol/arrowroot starch membranes were similar to those reported previously for other starch sources. From the data obtained in this study, it is clear that arrowroot starch could have promising industrial applications.

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