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Optimization of Spray-Drying Process of Jerusalem artichoke Extract for Inulin Production

Jerusalem artichoke is an important natural matrix for inulin production. In this experiment, response surface methodology (RSM) was employed to optimize the spray-drying parameters in order to determine the maximal inulin yield. For this study, three independent variables (heating temperature (Tª,...

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Detalles Bibliográficos
Autores principales: Zhu, Zhenzhou, Wu, Mailing, Cai, Jie, Li, Shuyi, Marszałek, Krystian, Lorenzo, Jose M., Barba, Francisco J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539007/
https://www.ncbi.nlm.nih.gov/pubmed/31035438
http://dx.doi.org/10.3390/molecules24091674
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author Zhu, Zhenzhou
Wu, Mailing
Cai, Jie
Li, Shuyi
Marszałek, Krystian
Lorenzo, Jose M.
Barba, Francisco J.
author_facet Zhu, Zhenzhou
Wu, Mailing
Cai, Jie
Li, Shuyi
Marszałek, Krystian
Lorenzo, Jose M.
Barba, Francisco J.
author_sort Zhu, Zhenzhou
collection PubMed
description Jerusalem artichoke is an important natural matrix for inulin production. In this experiment, response surface methodology (RSM) was employed to optimize the spray-drying parameters in order to determine the maximal inulin yield. For this study, three independent variables (heating temperature (Tª, 110–120 °C), creep speed (V, 18–22 rpm) and pressure (P, 0.02–0.04 MPa)) were used in the experimental design. Using the Box–Behnken design, the optimal parameters obtained were: drying temperature 114.6 °C, creep speed 20.02 rpm, and pressure: 0.03 MPa. The inulin yield, water content and particle size of inulin obtained by spray-drying and freeze-drying were compared. In this regard, the spray-dried inulin consisted of a white powder having a fine particle size, and the freeze-dried inulin had a pale-yellow fluffy floc. On the other hand, the drying methods had a great influence on the appearance and internal structure of inulin powder, since the spray-dried inulin had a complete and uniform shape and size, whereas the freeze-dried inulin had a flocculated sheet structure. The analysis showed that the spray-drying led to a higher inulin yield, lower water content and better surface structure than freeze-drying.
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spelling pubmed-65390072019-05-31 Optimization of Spray-Drying Process of Jerusalem artichoke Extract for Inulin Production Zhu, Zhenzhou Wu, Mailing Cai, Jie Li, Shuyi Marszałek, Krystian Lorenzo, Jose M. Barba, Francisco J. Molecules Article Jerusalem artichoke is an important natural matrix for inulin production. In this experiment, response surface methodology (RSM) was employed to optimize the spray-drying parameters in order to determine the maximal inulin yield. For this study, three independent variables (heating temperature (Tª, 110–120 °C), creep speed (V, 18–22 rpm) and pressure (P, 0.02–0.04 MPa)) were used in the experimental design. Using the Box–Behnken design, the optimal parameters obtained were: drying temperature 114.6 °C, creep speed 20.02 rpm, and pressure: 0.03 MPa. The inulin yield, water content and particle size of inulin obtained by spray-drying and freeze-drying were compared. In this regard, the spray-dried inulin consisted of a white powder having a fine particle size, and the freeze-dried inulin had a pale-yellow fluffy floc. On the other hand, the drying methods had a great influence on the appearance and internal structure of inulin powder, since the spray-dried inulin had a complete and uniform shape and size, whereas the freeze-dried inulin had a flocculated sheet structure. The analysis showed that the spray-drying led to a higher inulin yield, lower water content and better surface structure than freeze-drying. MDPI 2019-04-29 /pmc/articles/PMC6539007/ /pubmed/31035438 http://dx.doi.org/10.3390/molecules24091674 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhu, Zhenzhou
Wu, Mailing
Cai, Jie
Li, Shuyi
Marszałek, Krystian
Lorenzo, Jose M.
Barba, Francisco J.
Optimization of Spray-Drying Process of Jerusalem artichoke Extract for Inulin Production
title Optimization of Spray-Drying Process of Jerusalem artichoke Extract for Inulin Production
title_full Optimization of Spray-Drying Process of Jerusalem artichoke Extract for Inulin Production
title_fullStr Optimization of Spray-Drying Process of Jerusalem artichoke Extract for Inulin Production
title_full_unstemmed Optimization of Spray-Drying Process of Jerusalem artichoke Extract for Inulin Production
title_short Optimization of Spray-Drying Process of Jerusalem artichoke Extract for Inulin Production
title_sort optimization of spray-drying process of jerusalem artichoke extract for inulin production
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539007/
https://www.ncbi.nlm.nih.gov/pubmed/31035438
http://dx.doi.org/10.3390/molecules24091674
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