Natural Product Research, ( ISI ), Volume (12), No (1), Year (2015-1) , Pages (1-7)

Title : ( Investigating the influence of pH, temperature and agitation speed on yellow pigment production by Penicillium aculeatum ATCC 10409 )

Authors: majid afshari , Fakhri Shahidi , Sayed Ali Mortazavi , Farideh Tabatabaei yazdi , Zarin Es’haghi5 ,

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In this study, the combined effect of pH, temperature and agitation speed on yellow pigment production and mycelial growth of Penicillium aculeatum ATCC 10409 was investigated in whey media. Different pH levels (5, 6.5 and 8), temperatures (25, 30 and 35°C) and agitation speed levels (100 and 150 rpm) were tested to determine the best conditions to produce a fungal yellow pigment under submerged fermentation. The best production of yellow pigment (1.38 g/L) was obtained with a pH value of 6.5, a temperature of 30°C and an agitation speed of 150 rpm. In contrast, the maximal biomass concentration (11.12 g/L) was obtained at pH value of 8, a temperature of 30°C and an agitation speed of 100 rpm. These results demonstrated that biomass and yellow pigment production were not directly associated. The identification of the structure of unknown P. aculeatum yellow pigment was detected using UV absorption spectrum and FT-IR spectroscopy.

Keywords

agitation speed; fungal pigment; Penicillium aculeatum; pH; temperature;
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@article{paperid:1045516,
author = {Afshari, Majid and Shahidi, Fakhri and Mortazavi, Sayed Ali and Tabatabaei Yazdi, Farideh and Zarin Es’haghi5},
title = {Investigating the influence of pH, temperature and agitation speed on yellow pigment production by Penicillium aculeatum ATCC 10409},
journal = {Natural Product Research},
year = {2015},
volume = {12},
number = {1},
month = {January},
issn = {1478-6419},
pages = {1--7},
numpages = {6},
keywords = {agitation speed; fungal pigment; Penicillium aculeatum; pH; temperature; whey},
}

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%0 Journal Article
%T Investigating the influence of pH, temperature and agitation speed on yellow pigment production by Penicillium aculeatum ATCC 10409
%A Afshari, Majid
%A Shahidi, Fakhri
%A Mortazavi, Sayed Ali
%A Tabatabaei Yazdi, Farideh
%A Zarin Es’haghi5
%J Natural Product Research
%@ 1478-6419
%D 2015

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