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On-line Access: 2024-08-27

Received: 2023-10-17

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Open peer comments

Journal of Zhejiang University SCIENCE B 2011 Vol.12 No.12 P.961-968

http://doi.org/10.1631/jzus.B1100039


Red pigment production by Penicillium purpurogenum GH2 is influenced by pH and temperature


Author(s):  Alejandro M�ndez, Catalina P�rez, Julio Cesar Monta��z, Gabriela Mart�nez, Crist�bal No� Aguilar

Affiliation(s):  Department of Food Science and Technology, School of Chemistry, Universidad Aut�noma de Coahuila, Saltillo 25280, Coahuila, Mexico, Department of Organic Chemistry, School of Chemistry, Universidad Aut�noma de Coahuila, Saltillo 25280, Coahuila, Mexico, Department of Chemical Engineering, School of Chemistry, Universidad Aut�noma de Coahuila, Saltillo 25280, Coahuila, Mexico

Corresponding email(s):   cristobal.aguilar@uadec.edu.mx

Key Words:  Penicillium purpurogenum, Food colorants, Combined effects, Water-soluble pigment



Abstract: 
The combined effects of pH and temperature on red pigment production and fungal morphology were evaluated in a submerged culture of Penicillium purpurogenum GH2, using Czapek-Dox media with d-xylose as a carbon source. An experimental design with a factorial fix was used: three pH values (5, 7, and 9) and two temperature levels (24 and 34 °C) were evaluated. The highest production of red pigment (2.46 g/L) was reached with a pH value of 5 and a temperature of 24 °C. Biomass and red pigment production were not directly associated. This study demonstrates that P. purpurogenum GH2 produces a pigment of potential interest to the food industry. It also shows the feasibility of producing and obtaining natural water-soluble pigments for potential use in food industries. A strong combined effect (p<0.05) of pH and temperature was associated with maximal red pigment production (2.46 g/L).

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Cristobal Aguilar@University of Coahuila<cristobal.aguilar@uadec.edu.mx>

2012-05-31 00:12:08

I will be contacting you by email

padmapriya@research scholar<agri.padma@gmail.com>

2012-05-29 00:23:36

I;m padmapriya doing research on production of microbial pigment. So i need this article for my research work. Kindly send as early as possible.

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