Effect of Sweet Potato Starch on Rheological Properties and Emulsion Stability of Salad Dressings

Due to its gelling and thickening properties, sweet potato starch (<i>Ipomoea batatas</i> L.) could be a promising ingredient to improve characteristics such as the viscosity and consistency of foods like dressings. The objective of this study was to use sweet potato starch by adding it...

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Main Authors: Cynthia Torres-Álvarez, Karla G. García-Alanís, Carlos A. Amaya-Guerra, Ethel D. Cabello-Ruiz, Abelardo Chávez-Montes, Sandra L. Castillo-Hernández, Minerva Bautista-Villarreal
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Language:English
Published: MDPI AG 2025-06-01
Series:Polysaccharides
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Online Access:https://www.mdpi.com/2673-4176/6/2/51
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author Cynthia Torres-Álvarez
Karla G. García-Alanís
Carlos A. Amaya-Guerra
Ethel D. Cabello-Ruiz
Abelardo Chávez-Montes
Sandra L. Castillo-Hernández
Minerva Bautista-Villarreal
author_facet Cynthia Torres-Álvarez
Karla G. García-Alanís
Carlos A. Amaya-Guerra
Ethel D. Cabello-Ruiz
Abelardo Chávez-Montes
Sandra L. Castillo-Hernández
Minerva Bautista-Villarreal
author_sort Cynthia Torres-Álvarez
collection DOAJ
description Due to its gelling and thickening properties, sweet potato starch (<i>Ipomoea batatas</i> L.) could be a promising ingredient to improve characteristics such as the viscosity and consistency of foods like dressings. The objective of this study was to use sweet potato starch by adding it to salad dressing-type emulsion formulations. Sweet potato starch was characterized (microscopic appearance, granule size, and thermal properties). Four formulations (F1–F4) were developed incorporating different amounts of sweet potato starch (2 and 4%), and were characterized by particle size, emulsion stability, rheology, and sensory analysis. The starch granules were oval shaped, with a size range of 10–33 μm, and a temperature and enthalpy gelatinization (ΔH) of 69.08 °C and 10.72 J/g, respectively. The formulations were evaluated for 30 days, the particle size had a range of 2.18–13.88 μm, the emulsion stability was 98.89–100%, all formulations presented a creaming index at 0%, and the coalescence rate obtained values between −2.33 × 10<sup>−8</sup> and 7 × 10<sup>−8</sup><i>Kc</i> (s<sup>−1</sup>) showing a significant difference. The consistency coefficient (K) was obtained, 2.477–35.207 Pa·s<sup>n</sup>, and there was no significant difference between F1 and F2 with respect to a commercial dressing. In the sensory analysis, F2 presented greater acceptance. The values obtained suggest that sweet potato starch could be used in this type of food, showing similarities to the commercial brand.
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spelling doaj-art-bb67b83e09954b9a9b50c9d26f85fa452025-08-20T03:16:36ZengMDPI AGPolysaccharides2673-41762025-06-01625110.3390/polysaccharides6020051Effect of Sweet Potato Starch on Rheological Properties and Emulsion Stability of Salad DressingsCynthia Torres-Álvarez0Karla G. García-Alanís1Carlos A. Amaya-Guerra2Ethel D. Cabello-Ruiz3Abelardo Chávez-Montes4Sandra L. Castillo-Hernández5Minerva Bautista-Villarreal6Facultad de Agronomía, Universidad Autónoma de Nuevo León, Francisco Villa s/n, Ex−Hacienda El Canadá, General Escobedo C.P. 66050, MexicoDepartamento de Alimentos, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Av. Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza C.P. 66455, MexicoDepartamento de Alimentos, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Av. Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza C.P. 66455, MexicoDepartamento de Química, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Av. Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza C.P. 66455, MexicoDepartamento de Química, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Av. Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza C.P. 66455, MexicoDepartamento de Alimentos, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Av. Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza C.P. 66455, MexicoDepartamento de Alimentos, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Av. Pedro de Alba s/n, Cd. Universitaria, San Nicolás de los Garza C.P. 66455, MexicoDue to its gelling and thickening properties, sweet potato starch (<i>Ipomoea batatas</i> L.) could be a promising ingredient to improve characteristics such as the viscosity and consistency of foods like dressings. The objective of this study was to use sweet potato starch by adding it to salad dressing-type emulsion formulations. Sweet potato starch was characterized (microscopic appearance, granule size, and thermal properties). Four formulations (F1–F4) were developed incorporating different amounts of sweet potato starch (2 and 4%), and were characterized by particle size, emulsion stability, rheology, and sensory analysis. The starch granules were oval shaped, with a size range of 10–33 μm, and a temperature and enthalpy gelatinization (ΔH) of 69.08 °C and 10.72 J/g, respectively. The formulations were evaluated for 30 days, the particle size had a range of 2.18–13.88 μm, the emulsion stability was 98.89–100%, all formulations presented a creaming index at 0%, and the coalescence rate obtained values between −2.33 × 10<sup>−8</sup> and 7 × 10<sup>−8</sup><i>Kc</i> (s<sup>−1</sup>) showing a significant difference. The consistency coefficient (K) was obtained, 2.477–35.207 Pa·s<sup>n</sup>, and there was no significant difference between F1 and F2 with respect to a commercial dressing. In the sensory analysis, F2 presented greater acceptance. The values obtained suggest that sweet potato starch could be used in this type of food, showing similarities to the commercial brand.https://www.mdpi.com/2673-4176/6/2/51sweet potato starchrheologysalad dressings
spellingShingle Cynthia Torres-Álvarez
Karla G. García-Alanís
Carlos A. Amaya-Guerra
Ethel D. Cabello-Ruiz
Abelardo Chávez-Montes
Sandra L. Castillo-Hernández
Minerva Bautista-Villarreal
Effect of Sweet Potato Starch on Rheological Properties and Emulsion Stability of Salad Dressings
Polysaccharides
sweet potato starch
rheology
salad dressings
title Effect of Sweet Potato Starch on Rheological Properties and Emulsion Stability of Salad Dressings
title_full Effect of Sweet Potato Starch on Rheological Properties and Emulsion Stability of Salad Dressings
title_fullStr Effect of Sweet Potato Starch on Rheological Properties and Emulsion Stability of Salad Dressings
title_full_unstemmed Effect of Sweet Potato Starch on Rheological Properties and Emulsion Stability of Salad Dressings
title_short Effect of Sweet Potato Starch on Rheological Properties and Emulsion Stability of Salad Dressings
title_sort effect of sweet potato starch on rheological properties and emulsion stability of salad dressings
topic sweet potato starch
rheology
salad dressings
url https://www.mdpi.com/2673-4176/6/2/51
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