Optimization of garlic (Allium sativum L.) vacuum drying process by response surface methodology (RSM)

The objective of this work was to optimize the vacuum drying of garlic in order to preserve good physical properties. Fresh garlic (Allium sativum L.) was dried by vacuum drying process under different drying conditions. Three level, three variable, Box-Behnken experimental design (BBD) with respons...

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Main Authors: Vakula Anita, Horecki-Tepić Aleksandra, Šumić Zdravko, Vidović Senka, Drinić Zorica, Pavlić Branimir
Format: Article
Language:English
Published: National Society of Processing and Energy in Agriculture, Novi Sad 2016-01-01
Series:Journal on Processing and Energy in Agriculture
Subjects:
Online Access:https://scindeks-clanci.ceon.rs/data/pdf/1821-4487/2016/1821-44871603114V.pdf
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author Vakula Anita
Horecki-Tepić Aleksandra
Šumić Zdravko
Vidović Senka
Drinić Zorica
Pavlić Branimir
author_facet Vakula Anita
Horecki-Tepić Aleksandra
Šumić Zdravko
Vidović Senka
Drinić Zorica
Pavlić Branimir
author_sort Vakula Anita
collection DOAJ
description The objective of this work was to optimize the vacuum drying of garlic in order to preserve good physical properties. Fresh garlic (Allium sativum L.) was dried by vacuum drying process under different drying conditions. Three level, three variable, Box-Behnken experimental design (BBD) with response surface methodology (RSM) was used for optimization of drying process in terms of physical properties (moisture content, water activity, total colour change and shear force). Heat surface temperature (48 - 78 °C), airpressure (30 - 330 mbar) and drying time (3 - 11 h) were investigated as independent variables. Experimental results were fitted to a second-order polynomial model, where multiple regression analysis and analysis of variance were used to determine fitness of the model and optimal conditions for investigated responses. Contour plots were generated from the mathematical model. The optimal conditions for vacuum drying and simultaneous optimization of all responses (physical properties of dried garlic) were heat surface temperature of 78 °C, airpressure of 30 mbar and drying time of 11 h. Chemical parameters (total phenols content and antioxidant activity) were investigated as significant quality indicators of dried garlic samples. Fresh garlic was also dried by lyophilization and conventional drying in order to compare quality of samples dried by different techniques. It could be concluded that vacuum drying results in dried products with good physical properties, which are similar to sample dried by lyophilization and significantly better than convective dried sample.
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spelling doaj.art-e8ae3788122c4be0a608c1f72a3d5b9e2022-12-22T04:36:46ZengNational Society of Processing and Energy in Agriculture, Novi SadJournal on Processing and Energy in Agriculture1821-44872956-01952016-01-012031141211821-44871603114VOptimization of garlic (Allium sativum L.) vacuum drying process by response surface methodology (RSM)Vakula Anita0Horecki-Tepić Aleksandra1https://orcid.org/0000-0002-2479-0313Šumić Zdravko2Vidović Senka3https://orcid.org/0000-0001-6936-3289Drinić Zorica4Pavlić Branimir5University of Novi Sad, Faculty of Technology, Novi Sad, SerbiaUniversity of Novi Sad, Faculty of Technology, Novi Sad, SerbiaUniversity of Novi Sad, Faculty of Technology, Novi Sad, SerbiaUniversity of Novi Sad, Faculty of Technology, Novi Sad, SerbiaUniversity of Novi Sad, Faculty of Technology, Novi Sad, SerbiaUniversity of Novi Sad, Faculty of Technology, Novi Sad, SerbiaThe objective of this work was to optimize the vacuum drying of garlic in order to preserve good physical properties. Fresh garlic (Allium sativum L.) was dried by vacuum drying process under different drying conditions. Three level, three variable, Box-Behnken experimental design (BBD) with response surface methodology (RSM) was used for optimization of drying process in terms of physical properties (moisture content, water activity, total colour change and shear force). Heat surface temperature (48 - 78 °C), airpressure (30 - 330 mbar) and drying time (3 - 11 h) were investigated as independent variables. Experimental results were fitted to a second-order polynomial model, where multiple regression analysis and analysis of variance were used to determine fitness of the model and optimal conditions for investigated responses. Contour plots were generated from the mathematical model. The optimal conditions for vacuum drying and simultaneous optimization of all responses (physical properties of dried garlic) were heat surface temperature of 78 °C, airpressure of 30 mbar and drying time of 11 h. Chemical parameters (total phenols content and antioxidant activity) were investigated as significant quality indicators of dried garlic samples. Fresh garlic was also dried by lyophilization and conventional drying in order to compare quality of samples dried by different techniques. It could be concluded that vacuum drying results in dried products with good physical properties, which are similar to sample dried by lyophilization and significantly better than convective dried sample.https://scindeks-clanci.ceon.rs/data/pdf/1821-4487/2016/1821-44871603114V.pdfgarlic (allium sativum l.)vacuum dryingphysical and chemical propertiesoptimizationresponse surface methodology (rsm)
spellingShingle Vakula Anita
Horecki-Tepić Aleksandra
Šumić Zdravko
Vidović Senka
Drinić Zorica
Pavlić Branimir
Optimization of garlic (Allium sativum L.) vacuum drying process by response surface methodology (RSM)
Journal on Processing and Energy in Agriculture
garlic (allium sativum l.)
vacuum drying
physical and chemical properties
optimization
response surface methodology (rsm)
title Optimization of garlic (Allium sativum L.) vacuum drying process by response surface methodology (RSM)
title_full Optimization of garlic (Allium sativum L.) vacuum drying process by response surface methodology (RSM)
title_fullStr Optimization of garlic (Allium sativum L.) vacuum drying process by response surface methodology (RSM)
title_full_unstemmed Optimization of garlic (Allium sativum L.) vacuum drying process by response surface methodology (RSM)
title_short Optimization of garlic (Allium sativum L.) vacuum drying process by response surface methodology (RSM)
title_sort optimization of garlic allium sativum l vacuum drying process by response surface methodology rsm
topic garlic (allium sativum l.)
vacuum drying
physical and chemical properties
optimization
response surface methodology (rsm)
url https://scindeks-clanci.ceon.rs/data/pdf/1821-4487/2016/1821-44871603114V.pdf
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