Optimal C:N ratio for the production of red pigments by Monascus ruber

The carbon-to-nitrogen (C:N) ratio in the biomass of microfungi tends to be quite different (e.g. 10–15) compared with the C:N ratio in the red pigments (e.g.[20) of the fungus Monascus ruber. Therefore, determining an optimal C:N ratio in the culture medium for maximizing the production of the...

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Main Authors:	M. Said, Farhan, Brooks, John, Chisti, Yusuf
Format:	Article
Language:	English
Published:	Springer Netherlands 2014
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/8089/ http://umpir.ump.edu.my/id/eprint/8089/ http://umpir.ump.edu.my/id/eprint/8089/ http://umpir.ump.edu.my/id/eprint/8089/1/Optimal%20CN%20ratio%20for%20the%20production.pdf

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spelling	ump-80892018-04-04T05:48:34Z http://umpir.ump.edu.my/id/eprint/8089/ Optimal C:N ratio for the production of red pigments by Monascus ruber M. Said, Farhan Brooks, John Chisti, Yusuf TP Chemical technology The carbon-to-nitrogen (C:N) ratio in the biomass of microfungi tends to be quite different (e.g. 10–15) compared with the C:N ratio in the red pigments (e.g.[20) of the fungus Monascus ruber. Therefore, determining an optimal C:N ratio in the culture medium for maximizing the production of the pigments is important. A culture medium composition is established for maximizing the production of the red pigment by the fungus M. ruber ICMP 15220 in submerged culture. The highest volumetric productivity of the red pigment was 0.023 AU L-1 h-1 in a batch culture (30 C, initial pH of 6.5) with a defined medium of the following composition (g L-1): glucose (10), monosodium glutamate (MSG) (10), MgSO47H2O (0.5), KH2PO4 (5), K2HPO4 (5), ZnSO47H2O (0.01),FeSO47H2O (0.01), CaCl2 (0.1), MnSO4H2O (0.03). This medium formulation had a C:N mole ratio of 9:1. Under these conditions, the specific growth rate of the fungus was 0.043 h-1 and the peak biomass concentration was 6.7 g L-1 in a 7-day culture. The biomass specific productivity of the red pigment was 1.06 AU g-1 h-1. The best nitrogen source proved to be MSG although four other inorganic nitrogen sources were evaluated. Springer Netherlands 2014-05 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8089/1/Optimal%20CN%20ratio%20for%20the%20production.pdf M. Said, Farhan and Brooks, John and Chisti, Yusuf (2014) Optimal C:N ratio for the production of red pigments by Monascus ruber. World Journal of Microbiology and Biotechnology, 30 (9). pp. 2471-2479. ISSN 0959-3993 https://doi.org/10.1007/s11274-014-1672-6 doi: 10.1007/s11274-014-1672-6
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology M. Said, Farhan Brooks, John Chisti, Yusuf Optimal C:N ratio for the production of red pigments by Monascus ruber
description	The carbon-to-nitrogen (C:N) ratio in the biomass of microfungi tends to be quite different (e.g. 10–15) compared with the C:N ratio in the red pigments (e.g.[20) of the fungus Monascus ruber. Therefore, determining an optimal C:N ratio in the culture medium for maximizing the production of the pigments is important. A culture medium composition is established for maximizing the production of the red pigment by the fungus M. ruber ICMP 15220 in submerged culture. The highest volumetric productivity of the red pigment was 0.023 AU L-1 h-1 in a batch culture (30 C, initial pH of 6.5) with a defined medium of the following composition (g L-1): glucose (10), monosodium glutamate (MSG) (10), MgSO47H2O (0.5), KH2PO4 (5), K2HPO4 (5), ZnSO47H2O (0.01),FeSO47H2O (0.01), CaCl2 (0.1), MnSO4H2O (0.03). This medium formulation had a C:N mole ratio of 9:1. Under these conditions, the specific growth rate of the fungus was 0.043 h-1 and the peak biomass concentration was 6.7 g L-1 in a 7-day culture. The biomass specific productivity of the red pigment was 1.06 AU g-1 h-1. The best nitrogen source proved to be MSG although four other inorganic nitrogen sources were evaluated.
format	Article
author	M. Said, Farhan Brooks, John Chisti, Yusuf
author_facet	M. Said, Farhan Brooks, John Chisti, Yusuf
author_sort	M. Said, Farhan
title	Optimal C:N ratio for the production of red pigments by Monascus ruber
title_short	Optimal C:N ratio for the production of red pigments by Monascus ruber
title_full	Optimal C:N ratio for the production of red pigments by Monascus ruber
title_fullStr	Optimal C:N ratio for the production of red pigments by Monascus ruber
title_full_unstemmed	Optimal C:N ratio for the production of red pigments by Monascus ruber
title_sort	optimal c:n ratio for the production of red pigments by monascus ruber
publisher	Springer Netherlands
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/8089/ http://umpir.ump.edu.my/id/eprint/8089/ http://umpir.ump.edu.my/id/eprint/8089/ http://umpir.ump.edu.my/id/eprint/8089/1/Optimal%20CN%20ratio%20for%20the%20production.pdf
first_indexed	2023-09-18T22:05:23Z
last_indexed	2023-09-18T22:05:23Z
_version_	1777414672943677440

Optimal C:N ratio for the production of red pigments by Monascus ruber

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