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Simultaneous enrichment of cereals with polyunsaturated fatty acids and pigments by fungal solid state fermentations

Paper ID Volume ID Publish Year Pages File Format Full-Text
23362 43439 2013 5 PDF Available
Title
Simultaneous enrichment of cereals with polyunsaturated fatty acids and pigments by fungal solid state fermentations
Abstract

•Biotechnological enrichment of cereals with bioactive compounds.•Fungal solid state fermentations.•Effect of cultivation condition on production of gamma-linolenic acid and β-carotene.

Four Mucor strains were tested for their ability to grow on four cereal substrates and enriched them with gamma-linolenic acid (GLA) and β-carotene. M. circinelloides CCF-2617 as the best producer accumulated of both GLA and β-carotene in high amounts during utilization of rye bran/spent malt grains (3:1). The first growth phase was characterized by rapid GLA biosynthesis, while distinct β-carotene formation was found in the stationary fungal growth. Therefore various cultivation conditions were tested in order to optimize the yield of either GLA or β-carotene. The fungus grown on cereal substrate supplemented with glucose produced maximal 8.5 mg β-carotene and 12.1 g GLA in 1 kg fermented substrate, respectively. On the other hand, the highest amount of GLA in the fermented substrate (24.2 g/kg) was achieved when 30% of sunflower oil was employed to the substrate. Interestingly, β-carotene biosynthesis was completely inhibited when either whey or linseed oil were added to the substrate.

Keywords
GLA, gamma-linolenic acid; PUFA, polyunsaturated fatty acid; SMG, spent malt grains; SSF, solid state fermentationsSolid state fermentation; Cereals; Fungi; Gamma-linolenic acid; β-Carotene
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Simultaneous enrichment of cereals with polyunsaturated fatty acids and pigments by fungal solid state fermentations
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 168, Issue 2, 20 October 2013, Pages 130–134
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us