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Improving the antioxidant and antibacterial activities of fermented Bletilla striata with Fusarium avenaceum and Fusarium oxysporum

Paper ID Volume ID Publish Year Pages File Format Full-Text
34466 45027 2015 6 PDF Available
Title
Improving the antioxidant and antibacterial activities of fermented Bletilla striata with Fusarium avenaceum and Fusarium oxysporum
Abstract

•Bletilla striata was processed by pure strain fermentation for the first time.•Fusarium avenaceum and Fusarium oxysporum might be effective in B. striata fermentation processing.•UV–vis, FT-IR, and NMR spectra were effective in characterization of fermented B. striata.

The tubers of Bletilla striata were fermented with Fusarium avenaceum and Fusarium oxysporum. The total phenolic contents (TPCs) and antioxidant and antibacterial activities of the extracts from the fermented products were measured. Additionally, the extracts of both F. avenaceum and F. oxysporum fermented B. striata (FBS) were characterized by UV–vis spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, and nuclear magnetic resonance (NMR) spectroscopy. The results showed that the F. avenaceum and F. oxysporum FBSs possessed higher TPCs and exhibited stronger antioxidant and antibacterial activities (Bacillus subtilis) in comparison with original material not co-fermented with microorganisms. Chemical characterization of the two extracts with UV–vis, FT-IR, and 1H NMR implied that some of the phenolic glycosides may be deglycosylated and that bibenzyl compounds and saccharides may be metabolized in both FBS systems. Microbial fermentation enhances the TPC as well as the antioxidant and antibacterial activities of B. striata. The present study suggests that F. avenaceum and F. oxysporum fermentations were effective in B. striata processing.

Keywords
Bletilla striata; Fusarium avenaceum; Fusarium oxysporum; Fermentation; Antioxidant activity; Antibacterial activity
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Improving the antioxidant and antibacterial activities of fermented Bletilla striata with Fusarium avenaceum and Fusarium oxysporum
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 50, Issue 1, January 2015, Pages 8–13
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