Physicochemical, Functional, and Nutraceutical Properties of Eggplant Flours Obtained by Different Drying Methods

The importance of consuming functional foods has led the food industry to look for alternative sources of ingredients of natural origin. Eggplants are a type of vegetable that is valued for its content in phytochemical compounds and it is due to the fact that this research is conducted towards the d...

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Main Authors: Jenny R. Rodriguez-Jimenez, Carlos A. Amaya-Guerra, Juan G. Baez-Gonzalez, Carlos Aguilera-Gonzalez, Vania Urias-Orona, Guillermo Nino-Medina
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/23/12/3210
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author Jenny R. Rodriguez-Jimenez
Carlos A. Amaya-Guerra
Juan G. Baez-Gonzalez
Carlos Aguilera-Gonzalez
Vania Urias-Orona
Guillermo Nino-Medina
author_facet Jenny R. Rodriguez-Jimenez
Carlos A. Amaya-Guerra
Juan G. Baez-Gonzalez
Carlos Aguilera-Gonzalez
Vania Urias-Orona
Guillermo Nino-Medina
author_sort Jenny R. Rodriguez-Jimenez
collection DOAJ
description The importance of consuming functional foods has led the food industry to look for alternative sources of ingredients of natural origin. Eggplants are a type of vegetable that is valued for its content in phytochemical compounds and it is due to the fact that this research is conducted towards the development of eggplant flour as a proposal to be used as a functional ingredient in the food industry. In this study, the eggplant fruits were divided into four groups, based on the drying method and the equipment used: Minced, drying oven (T1); sliced, drying oven (T2); sliced and frozen, drying tunnel (T3); and sliced, drying tunnel (T4). All the eggplant flours showed the same trend regarding their antioxidant capacity and phenolic content in the order T2 > T4 > T1 > T3. The freezing of eggplant was found to have a negative effect on functional and antioxidant properties. With respect to their nutritional composition, the flours did not change in their crude fiber, protein, and fat contents. In general terms, the T2 flour is a potential ingredient for the preparation of foods with functional properties since it is rich in phenolic compounds and antioxidants.
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spelling doaj.art-20ea6ff3f48048a3bad9b5c0ddae9afe2022-12-21T18:11:40ZengMDPI AGMolecules1420-30492018-12-012312321010.3390/molecules23123210molecules23123210Physicochemical, Functional, and Nutraceutical Properties of Eggplant Flours Obtained by Different Drying MethodsJenny R. Rodriguez-Jimenez0Carlos A. Amaya-Guerra1Juan G. Baez-Gonzalez2Carlos Aguilera-Gonzalez3Vania Urias-Orona4Guillermo Nino-Medina5Facultad de Ciencias Biologicas, Universidad Autonoma de Nuevo Leon, Ave. Universidad S/N, Cd. Universitaria, 66450 San Nicolas de los Garza, MexicoFacultad de Ciencias Biologicas, Universidad Autonoma de Nuevo Leon, Ave. Universidad S/N, Cd. Universitaria, 66450 San Nicolas de los Garza, MexicoFacultad de Ciencias Biologicas, Universidad Autonoma de Nuevo Leon, Ave. Universidad S/N, Cd. Universitaria, 66450 San Nicolas de los Garza, MexicoFacultad de Ciencias Biologicas, Universidad Autonoma de Nuevo Leon, Ave. Universidad S/N, Cd. Universitaria, 66450 San Nicolas de los Garza, MexicoLaboratorio de Quimica y de Alimentos, Facultad de Salud Publica y Nutricion, Universidad Autonoma de Nuevo Leon, Col. Mitras Centro, C.P. 64460 Monterrey, Nuevo Leon, MexicoLaboratorio de Quimica y Bioquimica, Facultad de Agronomia, Universidad Autonoma de Nuevo Leon, Francisco Villa S/N, Col. Ex-Hacienda El Canada, C.P. 66050 General Escobedo, Nuevo Leon, MexicoThe importance of consuming functional foods has led the food industry to look for alternative sources of ingredients of natural origin. Eggplants are a type of vegetable that is valued for its content in phytochemical compounds and it is due to the fact that this research is conducted towards the development of eggplant flour as a proposal to be used as a functional ingredient in the food industry. In this study, the eggplant fruits were divided into four groups, based on the drying method and the equipment used: Minced, drying oven (T1); sliced, drying oven (T2); sliced and frozen, drying tunnel (T3); and sliced, drying tunnel (T4). All the eggplant flours showed the same trend regarding their antioxidant capacity and phenolic content in the order T2 > T4 > T1 > T3. The freezing of eggplant was found to have a negative effect on functional and antioxidant properties. With respect to their nutritional composition, the flours did not change in their crude fiber, protein, and fat contents. In general terms, the T2 flour is a potential ingredient for the preparation of foods with functional properties since it is rich in phenolic compounds and antioxidants.https://www.mdpi.com/1420-3049/23/12/3210eggplantflourphenolicsantioxidant activityfunctional ingredient
spellingShingle Jenny R. Rodriguez-Jimenez
Carlos A. Amaya-Guerra
Juan G. Baez-Gonzalez
Carlos Aguilera-Gonzalez
Vania Urias-Orona
Guillermo Nino-Medina
Physicochemical, Functional, and Nutraceutical Properties of Eggplant Flours Obtained by Different Drying Methods
Molecules
eggplant
flour
phenolics
antioxidant activity
functional ingredient
title Physicochemical, Functional, and Nutraceutical Properties of Eggplant Flours Obtained by Different Drying Methods
title_full Physicochemical, Functional, and Nutraceutical Properties of Eggplant Flours Obtained by Different Drying Methods
title_fullStr Physicochemical, Functional, and Nutraceutical Properties of Eggplant Flours Obtained by Different Drying Methods
title_full_unstemmed Physicochemical, Functional, and Nutraceutical Properties of Eggplant Flours Obtained by Different Drying Methods
title_short Physicochemical, Functional, and Nutraceutical Properties of Eggplant Flours Obtained by Different Drying Methods
title_sort physicochemical functional and nutraceutical properties of eggplant flours obtained by different drying methods
topic eggplant
flour
phenolics
antioxidant activity
functional ingredient
url https://www.mdpi.com/1420-3049/23/12/3210
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