Production and Characterization of an Antifungal Compound (3-Phenyllactic Acid) Produced by Lactobacillus plantarum Strain

The Lactobacillus plantarum strain was isolated from grass silage that produces a broad spectrum of antifungal compound, active against food and feed-borne filamentous fungi in agar plate assay. Aspergillus fumigatus and Rhizopus stolonifer were the most sensitive among molds. No inhibitory activity...

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Published inFood and bioprocess technology Vol. 3; no. 3; pp. 379 - 386
Main Authors Prema, P, Smila, D, Palavesam, A, Immanuel, G
Format Journal Article
LanguageEnglish
Published New York New York : Springer-Verlag 01.06.2010
Springer-Verlag
Springer Nature B.V
Subjects
3-phenyllactic acid
Acetic acid
Acids
Agriculture
Antifungal activity
antifungal agents
Aspergillus fumigatus
Biotechnology
chemical structure
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Contaminants
food contamination
food pathogens
Food Science
Fungi
Fungicides
Gas chromatography
Grass silage
Infrared spectroscopy
Lactic acid
Lactobacilli
Lactobacillus plantarum
Magnetic resonance spectroscopy
microbial contamination
microbial growth
Minimum inhibitory concentration
Mold
NMR
Nuclear magnetic resonance
Original Paper
Spectrum analysis
Strain analysis
Structural analysis
Molds
NMR-IR-GC
Antifungal
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Summary:The Lactobacillus plantarum strain was isolated from grass silage that produces a broad spectrum of antifungal compound, active against food and feed-borne filamentous fungi in agar plate assay. Aspergillus fumigatus and Rhizopus stolonifer were the most sensitive among molds. No inhibitory activity could be detected against mold Penicillium roqueforti. Enhanced antifungal activity was observed at 30 °C in pH 6.5. Minimum inhibitory concentration values against fungal cultures were ranged from 6.5 to 12.0 mg/ml for commercial 3-phenyllactic acid. The production of antifungal compound phenyllactic acid (PLA), lactic acid, and acetic acid by L. plantarum strain was also investigated. Structure characterization of the antifungal compound was carried out by nuclear magnetic resonance spectroscopy, infrared spectroscopy, and gas chromatography. The produced compound (PLA) acted as a fungistatic and delayed the growth of a variety of fungal contaminants.
Bibliography:http://dx.doi.org/10.1007/s11947-008-0127-1
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ISSN:1935-5130
1935-5149
DOI:10.1007/s11947-008-0127-1