Influence of oxidative stress and grains on sclerotial biomass and carotenoid yield of Penicillium sp. PT95

Oxidative stress and grains were evaluated for carotenoid production by solid-state fermentation using Penicillium sp. PT95. When the fungus was grown at high oxidative stress, its sclerotial biomass and carotenoid content in sclerotia increased significantly with respect to low oxidative stress (P...

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Bibliographic Details
Published in:Journal of basic microbiology 2010-08, Vol.50 (4), p.388-391
Main Authors: Chen, Shu-Jun, Wang, Qi, Han, Jian-Rong
Format: Article
Language:English
Subjects:
Biomass
Carotenoid
Carotenoids - biosynthesis
Culture Media
Edible Grain - metabolism
Fermentation
Grains
Industrial Microbiology
Oxdative stress
Oxidative Stress
Penicillium
Penicillium - metabolism
Penicillium sp
Sclerotial biomass
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Summary:Oxidative stress and grains were evaluated for carotenoid production by solid-state fermentation using Penicillium sp. PT95. When the fungus was grown at high oxidative stress, its sclerotial biomass and carotenoid content in sclerotia increased significantly with respect to low oxidative stress (P < 0.01). High oxidative stress also caused a statistically significant increase in carotenoid yield as compared with low oxidative stress (P < 0.01). Both the sclerotial biomass and the amount of carotenoid accumulated in sclerotia of strain PT95 were strongly dependent on the grain medium used. Among the grain media tested under high oxidative stress, buckwheat medium gave the highest content of carotenoid in sclerotia (828 μg/g dry sclerotia), millet medium gave respectively the highest sclerotial biomass (12.69 g/100 g grain) and carotenoid yield (10.152 mg/100 g grain). (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:0233-111X
1521-4028
DOI:10.1002/jobm.200900437