Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties

In the present work, the GHARS and the MECH DEGLA downgraded date varieties were used in a fermentation medium in order to produce citric acid by the Aspergillus niger. The biochemical characteristics of the dates were investigated, along with the chemical and physical characteristics of the solutio...

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Autores principales:	Dallal Chergui, Soraya Akretche-Kelfat, Lynda Lamoudi, Mamoon Al-Rshaidat, Farida Boudjelal, Hamid Ait-Amar
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Downgraded date varieties of Algeria (GHARS and MECH DEGLA) Citric acid Aspergillus niger Fermentation Optimization Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/4bfac009c7684317bf96e6c8a086354d
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id	oai:doaj.org-article:4bfac009c7684317bf96e6c8a086354d
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spelling	oai:doaj.org-article:4bfac009c7684317bf96e6c8a086354d2021-11-20T04:56:49ZOptimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties1319-562X10.1016/j.sjbs.2021.08.013https://doaj.org/article/4bfac009c7684317bf96e6c8a086354d2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1319562X21006860https://doaj.org/toc/1319-562XIn the present work, the GHARS and the MECH DEGLA downgraded date varieties were used in a fermentation medium in order to produce citric acid by the Aspergillus niger. The biochemical characteristics of the dates were investigated, along with the chemical and physical characteristics of the solutions of both samples. The analyzed parameters included the moisture and sugar content, the ash residual, the pH values, and the electrical conductivity. The effect of the following fermentation parameters was studied: initial pH, temperature, incubation period, and methanol. For the GHARS and MECH DEGLA date varieties respectively, the ash residual measured at 1.90% and 2.47%. For each date variety, the moisture and total sugars were measured at 11.59% and 85%, for the GHARS, and 12.82% and 80.47% for the MECH DEGLA. Citric acid production using either of the two varieties of dates showed a high yield in a short time.The obtained results showed that the highest production of citric acid by both medium of dates was achieved at the initial pH value of 3.0, temperature 30 °C, and an incubation period of 8 days. Also, the maximum amount of citric acid was produced when both mediums contained 4% of methanol. Both varieties of dates showed a good yield for the citric acid and can be used as a culture medium since they are economic and ensure good growth for the Aspergillus niger.Dallal CherguiSoraya Akretche-KelfatLynda LamoudiMamoon Al-RshaidatFarida BoudjelalHamid Ait-AmarElsevierarticleDowngraded date varieties of Algeria (GHARS and MECH DEGLA)Citric acidAspergillus nigerFermentationOptimizationBiology (General)QH301-705.5ENSaudi Journal of Biological Sciences, Vol 28, Iss 12, Pp 7134-7141 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Downgraded date varieties of Algeria (GHARS and MECH DEGLA) Citric acid Aspergillus niger Fermentation Optimization Biology (General) QH301-705.5
spellingShingle	Downgraded date varieties of Algeria (GHARS and MECH DEGLA) Citric acid Aspergillus niger Fermentation Optimization Biology (General) QH301-705.5 Dallal Chergui Soraya Akretche-Kelfat Lynda Lamoudi Mamoon Al-Rshaidat Farida Boudjelal Hamid Ait-Amar Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties
description	In the present work, the GHARS and the MECH DEGLA downgraded date varieties were used in a fermentation medium in order to produce citric acid by the Aspergillus niger. The biochemical characteristics of the dates were investigated, along with the chemical and physical characteristics of the solutions of both samples. The analyzed parameters included the moisture and sugar content, the ash residual, the pH values, and the electrical conductivity. The effect of the following fermentation parameters was studied: initial pH, temperature, incubation period, and methanol. For the GHARS and MECH DEGLA date varieties respectively, the ash residual measured at 1.90% and 2.47%. For each date variety, the moisture and total sugars were measured at 11.59% and 85%, for the GHARS, and 12.82% and 80.47% for the MECH DEGLA. Citric acid production using either of the two varieties of dates showed a high yield in a short time.The obtained results showed that the highest production of citric acid by both medium of dates was achieved at the initial pH value of 3.0, temperature 30 °C, and an incubation period of 8 days. Also, the maximum amount of citric acid was produced when both mediums contained 4% of methanol. Both varieties of dates showed a good yield for the citric acid and can be used as a culture medium since they are economic and ensure good growth for the Aspergillus niger.
format	article
author	Dallal Chergui Soraya Akretche-Kelfat Lynda Lamoudi Mamoon Al-Rshaidat Farida Boudjelal Hamid Ait-Amar
author_facet	Dallal Chergui Soraya Akretche-Kelfat Lynda Lamoudi Mamoon Al-Rshaidat Farida Boudjelal Hamid Ait-Amar
author_sort	Dallal Chergui
title	Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties
title_short	Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties
title_full	Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties
title_fullStr	Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties
title_full_unstemmed	Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties
title_sort	optimization of citric acid production by aspergillus niger using two downgraded algerian date varieties
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/4bfac009c7684317bf96e6c8a086354d
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Optimization of citric acid production by Aspergillus niger using two downgraded Algerian date varieties

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