Characterization of bioactive compounds from monascus purpureus fermented different cereal substrates

<p>Solid-state fermenting of cereals by <em>Monascus</em> is interesting strategy to produce cereals with more beneficial components. &nbsp;The objective of this study was to determine selected primary and secondary metabolites in cereals (rice, wheat, barley, sorghum, corn, bu...

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Bibliographic Details
Main Authors: Eva Ivanišová, Martin Rajtar, Marián Tokár, Helena Frančáková, Štefan Dráb, Maciej Kluz, Miroslava Kačániová
Format: Article
Language:English
Published: HACCP Consulting 2017-01-01
Series:Potravinarstvo
Subjects:
Online Access:http://www.potravinarstvo.com/journal1/index.php/potravinarstvo/article/view/722
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Summary:<p>Solid-state fermenting of cereals by <em>Monascus</em> is interesting strategy to produce cereals with more beneficial components. &nbsp;The objective of this study was to determine selected primary and secondary metabolites in cereals (rice, wheat, barley, sorghum, corn, buckwheat) fermented by <em>Monascus purpreus</em> and subsequently compare amount of these compounds with control sample (cereals without <em>Monascus</em>). In fermented cereals was determined higher protein, fat, reducing sugars, crude fiber and ash content with compare to non-fermented cereals. The antioxidant activity measured by DPPH assay, ABTS assay as well as reducing power assay was also higher in fermented <em>Monascus</em> cereals with the best results in rice (3.09 &plusmn;0.02; 62.9 &plusmn;2.24; 43.19 &plusmn;2.07 mg TEAC per g of dry weight). Sample of fermented rice contained the highest level of total polyphenols (15.31 &plusmn;3.62 mg GAE per g of dry weight), total flavonoids (1.65 mg QE per g of dry weight) and total phenolic acids (9.47 &plusmn;0.56 mg CAE per g of dry weight). In fermented cereals was also determined higher contact of reducing sugars (highest value in rice 246.97 &plusmn;7.96 mg GE per g), proteins (highest value in buckwheat 28.47 &plusmn;1.24%), ash (highest value in sorghum 2.74 &plusmn;0.08%) and fat (highest value in corn 4.89 &plusmn;0.03%) with compare to non-fermented samples. Results of crude fiber content of both - fermented and non-fermented cereals were balanced with similar values. Results of this study shown that <em>Monascus purpureus</em> fermented cereal substrates might be a potential sources of several bioactive compounds in food products.</p> <br />
ISSN:1337-0960