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Comparison between Quality Traits of Solar-Dried and Freeze-Dried Origanum syriacum L. (Za’atar)

There is growing interest in Origanum syriacum due to attractive culinary applications and functional properties. Solar drying is the most common conventional method for drying Origanum syriacum L. (Za’atar) in Mediterranean region. This study aimed to evaluate the quality traits of solar dried za’a...

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Autores principales: Alwafa, Reem Abu, Mudalal, Samer, Shraim, Faisal, Mauriello, Gianluigi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9103257/
https://www.ncbi.nlm.nih.gov/pubmed/35567112
http://dx.doi.org/10.3390/plants11091110
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author Alwafa, Reem Abu
Mudalal, Samer
Shraim, Faisal
Mauriello, Gianluigi
author_facet Alwafa, Reem Abu
Mudalal, Samer
Shraim, Faisal
Mauriello, Gianluigi
author_sort Alwafa, Reem Abu
collection PubMed
description There is growing interest in Origanum syriacum due to attractive culinary applications and functional properties. Solar drying is the most common conventional method for drying Origanum syriacum L. (Za’atar) in Mediterranean region. This study aimed to evaluate the quality traits of solar dried za’atar in comparison to freeze dried za’atar. Proximate composition (moisture, protein, fat, fiber, carbohydrates, and ash), color index (L*a*b*), macro and microstructure, sensory, and microbiological characteristics were evaluated. Solar dried za’atar exhibited significantly lower fat content (1.10 vs. 1.64%, p < 0.05) than freeze dried za’atar. Solar drying led to severe changes in color values compared to freeze drying. Solar drying exhibited loss in the structural integrity and leave hairs more than freeze drying. Moreover, freeze-dried za’atar exhibited significantly lower total aerobic count (4.92 vs. 5.23, p < 0.05) and yeasts and mold count (4.59 vs. 5.36, p < 0.05) than solar-dried za’atar. Panelists were able significantly to differentiate between solar- and freeze dried za’atar. Freeze-dried za’atar had significantly lower hedonic score of color, odor, taste, and overall acceptance than solar dried za’atar. In conclusion, using freeze drying achieved good improvements in some quality traits for za’atar while solar dried za’atar showed better sensory perception.
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spelling pubmed-91032572022-05-14 Comparison between Quality Traits of Solar-Dried and Freeze-Dried Origanum syriacum L. (Za’atar) Alwafa, Reem Abu Mudalal, Samer Shraim, Faisal Mauriello, Gianluigi Plants (Basel) Article There is growing interest in Origanum syriacum due to attractive culinary applications and functional properties. Solar drying is the most common conventional method for drying Origanum syriacum L. (Za’atar) in Mediterranean region. This study aimed to evaluate the quality traits of solar dried za’atar in comparison to freeze dried za’atar. Proximate composition (moisture, protein, fat, fiber, carbohydrates, and ash), color index (L*a*b*), macro and microstructure, sensory, and microbiological characteristics were evaluated. Solar dried za’atar exhibited significantly lower fat content (1.10 vs. 1.64%, p < 0.05) than freeze dried za’atar. Solar drying led to severe changes in color values compared to freeze drying. Solar drying exhibited loss in the structural integrity and leave hairs more than freeze drying. Moreover, freeze-dried za’atar exhibited significantly lower total aerobic count (4.92 vs. 5.23, p < 0.05) and yeasts and mold count (4.59 vs. 5.36, p < 0.05) than solar-dried za’atar. Panelists were able significantly to differentiate between solar- and freeze dried za’atar. Freeze-dried za’atar had significantly lower hedonic score of color, odor, taste, and overall acceptance than solar dried za’atar. In conclusion, using freeze drying achieved good improvements in some quality traits for za’atar while solar dried za’atar showed better sensory perception. MDPI 2022-04-20 /pmc/articles/PMC9103257/ /pubmed/35567112 http://dx.doi.org/10.3390/plants11091110 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
Alwafa, Reem Abu
Mudalal, Samer
Shraim, Faisal
Mauriello, Gianluigi
Comparison between Quality Traits of Solar-Dried and Freeze-Dried Origanum syriacum L. (Za’atar)
title Comparison between Quality Traits of Solar-Dried and Freeze-Dried Origanum syriacum L. (Za’atar)
title_full Comparison between Quality Traits of Solar-Dried and Freeze-Dried Origanum syriacum L. (Za’atar)
title_fullStr Comparison between Quality Traits of Solar-Dried and Freeze-Dried Origanum syriacum L. (Za’atar)
title_full_unstemmed Comparison between Quality Traits of Solar-Dried and Freeze-Dried Origanum syriacum L. (Za’atar)
title_short Comparison between Quality Traits of Solar-Dried and Freeze-Dried Origanum syriacum L. (Za’atar)
title_sort comparison between quality traits of solar-dried and freeze-dried origanum syriacum l. (za’atar)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9103257/
https://www.ncbi.nlm.nih.gov/pubmed/35567112
http://dx.doi.org/10.3390/plants11091110
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