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        Modulation of Phenolic Content and Antioxidant Activity of Maize by Solid State Fermentation with Thamnidium elegans CCF 1456

        Raj Kumar Salar,Milan Certik,Vlasta Brezova 한국생물공학회 2012 Biotechnology and Bioprocess Engineering Vol.17 No.1

        Thamnidium elegans CCF 1456, a filamentous fungus, was used to enhance the total phenolic content and radical scavenging activity of maize via solid-state fermentation. Thamnidium fermented maize (TFM) and unfermented maize (UFM) grains were extracted with 65%ethanol and dimethylsulfoxide (DMSO). Total phenolic content (TPC), and radical scavenging capacity – determined with 1,1-diphenyl-2-picrylhydrazyl (DPPH) and radical cations of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) (ABTS•+) found for TFM – were significantly (P < 0.05) higher on the 5th day of incubation than that of UFM extracts. A linear correlation was observed among TPC, DPPH and ABTS scavenging activities, and also among TPC and various carbohydrate-cleaving enzymes (α-amylase, β-glucosidase and xylanase), suggesting that this? strategy may help to enrich? TFM with improved phytochemical properties and antioxidant activities. Thamnidium elegans CCF 1456, a filamentous fungus, was used to enhance the total phenolic content and radical scavenging activity of maize via solid-state fermentation. Thamnidium fermented maize (TFM) and unfermented maize (UFM) grains were extracted with 65%ethanol and dimethylsulfoxide (DMSO). Total phenolic content (TPC), and radical scavenging capacity – determined with 1,1-diphenyl-2-picrylhydrazyl (DPPH) and radical cations of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) (ABTS•+) found for TFM – were significantly (P < 0.05) higher on the 5th day of incubation than that of UFM extracts. A linear correlation was observed among TPC, DPPH and ABTS scavenging activities, and also among TPC and various carbohydrate-cleaving enzymes (α-amylase, β-glucosidase and xylanase), suggesting that this? strategy may help to enrich? TFM with improved phytochemical properties and antioxidant activities.

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