Production of Nigella sativa Beverage Powder under Foam Mat Drying Using Egg Albumen as a Foaming Agent

The aim of this study was to determine the feasibility of producing Nigella sativa powder under a foam mat drying technique. A central, composite design of experiments was used to optimize the drying condition and compare the solubility, the antioxidant and mineral content of roasted Nigella sati...

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Main Authors: Affandi, Norhazirah, Zzaman, Wahidu, Yang, Tajul Aris, Mat Easa, Azhar
Format: Article
Language:English
Published: MDPI AG 2017
Subjects:
Online Access:http://eprints.usm.my/37176/1/%28Production_of_Nigella_sativa%29_beverages-03-00009-v2.pdf
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author Affandi, Norhazirah
Zzaman, Wahidu
Yang, Tajul Aris
Mat Easa, Azhar
author_facet Affandi, Norhazirah
Zzaman, Wahidu
Yang, Tajul Aris
Mat Easa, Azhar
author_sort Affandi, Norhazirah
collection USM
description The aim of this study was to determine the feasibility of producing Nigella sativa powder under a foam mat drying technique. A central, composite design of experiments was used to optimize the drying condition and compare the solubility, the antioxidant and mineral content of roasted Nigella sativa, and the foam mat dried Nigella sativa powder. Foams were prepared from Nigella sativa solution by adding different concentrations of egg albumen (2.5%, 8.75%, and 15% w/w) and methyl cellulose (0, 0.5% and 1% w/w), using whipping times of 2, 5, and 8 min. The drying temperature was set at 50–70 �C, with a foam thickness of 1, 2, and 3 mm. The optimum recorded conditions for the foaming process were 15% of egg albumen concentration, 0.69% of methyl cellulose concentration, and a whipping time of 8 min. Thus, the optimum conditions for the drying process were 60 �C, with 2 mm of foam thickness. The results showed that there were significant differences in DPPH inhibition, the total phenolic content, and mineral content, whereas no significant differences were recorded in the water solubility index between the roasted Nigella sativa and the foam mat dried Nigella sativa powder.
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spelling usm.eprints-371762017-10-17T02:50:12Z http://eprints.usm.my/37176/ Production of Nigella sativa Beverage Powder under Foam Mat Drying Using Egg Albumen as a Foaming Agent Affandi, Norhazirah Zzaman, Wahidu Yang, Tajul Aris Mat Easa, Azhar T1-995 Technology(General) The aim of this study was to determine the feasibility of producing Nigella sativa powder under a foam mat drying technique. A central, composite design of experiments was used to optimize the drying condition and compare the solubility, the antioxidant and mineral content of roasted Nigella sativa, and the foam mat dried Nigella sativa powder. Foams were prepared from Nigella sativa solution by adding different concentrations of egg albumen (2.5%, 8.75%, and 15% w/w) and methyl cellulose (0, 0.5% and 1% w/w), using whipping times of 2, 5, and 8 min. The drying temperature was set at 50–70 �C, with a foam thickness of 1, 2, and 3 mm. The optimum recorded conditions for the foaming process were 15% of egg albumen concentration, 0.69% of methyl cellulose concentration, and a whipping time of 8 min. Thus, the optimum conditions for the drying process were 60 �C, with 2 mm of foam thickness. The results showed that there were significant differences in DPPH inhibition, the total phenolic content, and mineral content, whereas no significant differences were recorded in the water solubility index between the roasted Nigella sativa and the foam mat dried Nigella sativa powder. MDPI AG 2017 Article PeerReviewed application/pdf en http://eprints.usm.my/37176/1/%28Production_of_Nigella_sativa%29_beverages-03-00009-v2.pdf Affandi, Norhazirah and Zzaman, Wahidu and Yang, Tajul Aris and Mat Easa, Azhar (2017) Production of Nigella sativa Beverage Powder under Foam Mat Drying Using Egg Albumen as a Foaming Agent. beverages, 3 (9). pp. 1-15. ISSN 2306-5710 http://www.mdpi.com/2306-5710/3/1/9/htm
spellingShingle T1-995 Technology(General)
Affandi, Norhazirah
Zzaman, Wahidu
Yang, Tajul Aris
Mat Easa, Azhar
Production of Nigella sativa Beverage Powder under Foam Mat Drying Using Egg Albumen as a Foaming Agent
title Production of Nigella sativa Beverage Powder under Foam Mat Drying Using Egg Albumen as a Foaming Agent
title_full Production of Nigella sativa Beverage Powder under Foam Mat Drying Using Egg Albumen as a Foaming Agent
title_fullStr Production of Nigella sativa Beverage Powder under Foam Mat Drying Using Egg Albumen as a Foaming Agent
title_full_unstemmed Production of Nigella sativa Beverage Powder under Foam Mat Drying Using Egg Albumen as a Foaming Agent
title_short Production of Nigella sativa Beverage Powder under Foam Mat Drying Using Egg Albumen as a Foaming Agent
title_sort production of nigella sativa beverage powder under foam mat drying using egg albumen as a foaming agent
topic T1-995 Technology(General)
url http://eprints.usm.my/37176/1/%28Production_of_Nigella_sativa%29_beverages-03-00009-v2.pdf
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