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Optimization of Conditions for a Freeze-Dried Restructured Strawberry Block by Adding Guar Gum, Pectin and Gelatin

With its high moisture content and tender texture, fresh strawberry is very susceptible to mechanical damage and microbial infection. Drying is one of the most frequently employed methods to extend its shelf life, and freeze-dried restructured strawberry block (FRSB) is an emerging popular food. Her...

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Detalles Bibliográficos
Autores principales: Hu, Jiaqi, Sun, Xiyun, Xiao, Hongwei, Yang, Feifei, Liu, Chunju, Wang, Haiou, Zhang, Honglin, Zhang, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658006/
https://www.ncbi.nlm.nih.gov/pubmed/36365264
http://dx.doi.org/10.3390/plants11212809
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author Hu, Jiaqi
Sun, Xiyun
Xiao, Hongwei
Yang, Feifei
Liu, Chunju
Wang, Haiou
Zhang, Honglin
Zhang, Wei
author_facet Hu, Jiaqi
Sun, Xiyun
Xiao, Hongwei
Yang, Feifei
Liu, Chunju
Wang, Haiou
Zhang, Honglin
Zhang, Wei
author_sort Hu, Jiaqi
collection PubMed
description With its high moisture content and tender texture, fresh strawberry is very susceptible to mechanical damage and microbial infection. Drying is one of the most frequently employed methods to extend its shelf life, and freeze-dried restructured strawberry block (FRSB) is an emerging popular food. Here, in order to enhance the quality of FRSB, edible gums of guar gum, pectin, and gelatin were added and the combination was optimized using response surface methodology (RSM) with chewiness, hardness, and organoleptic evaluations of the dried sample as the response indicators. The results showed that the combination addition of 0.10% guar gum, 0.22% pectin, and 0.30% gelatin contributed to the highest comprehensive quality of the dried sample. Compared with the untreated sample, the optimal combination addition of the three edible gums resulted in a higher moisture content for the dried sample (increased by 0.8%), and increased the chewiness, hardness, and porosity by 82.04%, 27.09%, and 3.01%, respectively, while maintaining more original color and forming a denser porous microstructure. The findings in the current work will be useful for the application of edible gums in freeze-dried restructured fruits and vegetables.
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spelling pubmed-96580062022-11-15 Optimization of Conditions for a Freeze-Dried Restructured Strawberry Block by Adding Guar Gum, Pectin and Gelatin Hu, Jiaqi Sun, Xiyun Xiao, Hongwei Yang, Feifei Liu, Chunju Wang, Haiou Zhang, Honglin Zhang, Wei Plants (Basel) Article With its high moisture content and tender texture, fresh strawberry is very susceptible to mechanical damage and microbial infection. Drying is one of the most frequently employed methods to extend its shelf life, and freeze-dried restructured strawberry block (FRSB) is an emerging popular food. Here, in order to enhance the quality of FRSB, edible gums of guar gum, pectin, and gelatin were added and the combination was optimized using response surface methodology (RSM) with chewiness, hardness, and organoleptic evaluations of the dried sample as the response indicators. The results showed that the combination addition of 0.10% guar gum, 0.22% pectin, and 0.30% gelatin contributed to the highest comprehensive quality of the dried sample. Compared with the untreated sample, the optimal combination addition of the three edible gums resulted in a higher moisture content for the dried sample (increased by 0.8%), and increased the chewiness, hardness, and porosity by 82.04%, 27.09%, and 3.01%, respectively, while maintaining more original color and forming a denser porous microstructure. The findings in the current work will be useful for the application of edible gums in freeze-dried restructured fruits and vegetables. MDPI 2022-10-22 /pmc/articles/PMC9658006/ /pubmed/36365264 http://dx.doi.org/10.3390/plants11212809 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hu, Jiaqi
Sun, Xiyun
Xiao, Hongwei
Yang, Feifei
Liu, Chunju
Wang, Haiou
Zhang, Honglin
Zhang, Wei
Optimization of Conditions for a Freeze-Dried Restructured Strawberry Block by Adding Guar Gum, Pectin and Gelatin
title Optimization of Conditions for a Freeze-Dried Restructured Strawberry Block by Adding Guar Gum, Pectin and Gelatin
title_full Optimization of Conditions for a Freeze-Dried Restructured Strawberry Block by Adding Guar Gum, Pectin and Gelatin
title_fullStr Optimization of Conditions for a Freeze-Dried Restructured Strawberry Block by Adding Guar Gum, Pectin and Gelatin
title_full_unstemmed Optimization of Conditions for a Freeze-Dried Restructured Strawberry Block by Adding Guar Gum, Pectin and Gelatin
title_short Optimization of Conditions for a Freeze-Dried Restructured Strawberry Block by Adding Guar Gum, Pectin and Gelatin
title_sort optimization of conditions for a freeze-dried restructured strawberry block by adding guar gum, pectin and gelatin
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658006/
https://www.ncbi.nlm.nih.gov/pubmed/36365264
http://dx.doi.org/10.3390/plants11212809
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