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2012 (Vol. 4, Issue: 4)
Article Information:

Gamma-Linolenic Acid Production with Simultaneous Lipid-Content Reduction in Soybean Meal after Solid-State Fermentation

Alex Fernando de Almeida, Sâmia Maria Tauk-Tornisielo, Felipe Bardari Turi and Antonio Carlos Simões Pião
Corresponding Author:  Alex Fernando de Almeida 

Key words:  Agro-industrial substrate, fatty acid, fermentation, filamentous fungi, lipid, Mucor circinelloides,
Vol. 4 , (4): 366-371
Submitted Accepted Published
November 09, 2011 December 09, 2011 July 10, 2012
Abstract:

The aim of this study was to evaluate changes in fatty acids composition, following the production of gamma-linolenic acid and the reduction of lipid concentration after agro-industrial substrates fermentation. A Mucor circinelloides strains was selected among seven fungal strains as the most effective gamma-linolenic acid producer in submerged cultivation. This filamentous fungus had the action lipolytic during solid-state fermentation with agro-industrial substrates, followed of the production of 3.0 g/kg BP of gamma-linolenic acid in cultures with soybean meal. Canola and sesame oil mixture (2% w/w) provided a gamma linolenic acid production of 6.2 g/kg BP. Moisture of the substrate created a compact mass preventing fungus utilized the substrate completely. When rice husks was added to the substrate, supplemented with canola plus sesame oils 2%, it was observed the gamma-linolenic acid production of 8.4 g/kg BP and total lipid was reduced 3.3-fold. These results represent a new perspectives and promising for the oleaginous fungi in solid-state fermentation cultivation process, objectifying the production of feed with improved nutritional quality and at low cost.
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  Cite this Reference:
Alex Fernando de Almeida, Sâmia Maria Tauk-Tornisielo, Felipe Bardari Turi and Antonio Carlos Simões Pião, 2012. Gamma-Linolenic Acid Production with Simultaneous Lipid-Content Reduction in Soybean Meal after Solid-State Fermentation.  Current Research Journal of Biological Sciences, 4(4): 366-371.
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ISSN (Online):  2041-0778
ISSN (Print):   2041-076X
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