Crosslink modification of tapioca starch with citric acid as a functional food

In this study, tapioca starch was successfully modified through a crosslinking reaction with citric acid. Tapioca and citric acid were reacted by setting the conditions during the reaction such as the concentration of citric acid, time reaction, pH, and temperature. Citric acid was chosen as the cro...

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Main Authors: Utomo, P., Nizardo, N. M., Saepudin, E.
Format: Conference Proceeding
Language:English
Subjects:
Acids
Citric acid
Crosslinking
Functional foods & nutraceuticals
Hydroxyl groups
Tapioca
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Nizardo, N. M.
Saepudin, E.
description In this study, tapioca starch was successfully modified through a crosslinking reaction with citric acid. Tapioca and citric acid were reacted by setting the conditions during the reaction such as the concentration of citric acid, time reaction, pH, and temperature. Citric acid was chosen as the crosslinker as it is Generally Recognized as Safe (GRAS) for food and its carboxylic groups can easily form crosslinking reactions with hydroxyl groups of starch through formation of ester at both ends of citrate. Characterization of the product with FT-IR showed that a peak at 1720 cm-1 indicates the presence of ester groups in the product. Characterization with XRD showed that modified starch has a lower level of crystallinity. Based on the results of several characterizations of starch citrate products, the functional properties of starch also change, such as the decrease of swelling power, solubility, and viscosity. Digestibility of starch citrate also decreased by 25 % compared to normal starch.
doi_str_mv 10.1063/5.0010364
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M. ; Saepudin, E.</creator><contributor>Ivandini, Tribidasari Anggraningrum ; Triyono, Djoko ; Mart, Terry</contributor><creatorcontrib>Utomo, P. ; Nizardo, N. M. ; Saepudin, E. ; Ivandini, Tribidasari Anggraningrum ; Triyono, Djoko ; Mart, Terry</creatorcontrib><description>In this study, tapioca starch was successfully modified through a crosslinking reaction with citric acid. Tapioca and citric acid were reacted by setting the conditions during the reaction such as the concentration of citric acid, time reaction, pH, and temperature. Citric acid was chosen as the crosslinker as it is Generally Recognized as Safe (GRAS) for food and its carboxylic groups can easily form crosslinking reactions with hydroxyl groups of starch through formation of ester at both ends of citrate. Characterization of the product with FT-IR showed that a peak at 1720 cm-1 indicates the presence of ester groups in the product. 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source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects Acids
Citric acid
Crosslinking
Functional foods & nutraceuticals
Hydroxyl groups
Tapioca
title Crosslink modification of tapioca starch with citric acid as a functional food
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