Selective antimicrobial activity of chitosan on beer spoilage bacteria and brewing yeasts

Gil, G. R.; Mónaco, Silvana del; Cerrutti, Patricia; Galvagno, Miguel A.

doi:10.1023/b:bile.0000021957.37426.9b

Cited by 65 publications

(29 citation statements)

References 13 publications

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“…As can be observed, the three formulations assayed produced similar 100% inhibition hales (9.0±1.0 mm) and significant differences (p<0.05) with respect to the controls (6.5±0.5 mm). Films without drug also showed an inhibition zone (6.0±0.5 mm) that could be explained by the previously reported antimicrobial activity of CH (52)(53)(54)(55)(56)(57)(58)(59), which generates a matrix with antifungal properties. Surprisingly, the halo zone of the commercial cream (CC) containing an amount of ENC equal to that in the films was half in diameter for the both yeast assayed.…”

Section: Dissolution Assaysupporting

confidence: 53%

Design, Characterization, and In Vitro Evaluation of Antifungal Polymeric Films

et al. 2012

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Abstract. The objective of the present paper was the development and the full characterization of antifungal films. Econazole nitrate (ECN) was loaded in a polymeric matrix formed by chitosan (CH) and carbopol 971NF (CB). Polyethylene glycol 400 and sorbitol were used as plasticizing agents. The mechanical properties of films were poorer when the drug was loaded, probably because crystals of ENC produces network outages and therefore reduces the polymeric interactions between the polymers. Polymers-ECN and CH-CB interactions were analyzed by Fourier-transform infrared spectroscopy (FTIR), thermal gravimetry analysis, and differential thermal analysis (DTA-TGA). ECN did not show structure alterations when loaded into the films. In scanning electron microphotographs and atomic force microscopy analysis, films prepared with CB showed an evident wrinkle pattern probably due to the strong interactions between the polymers, which were observed by FTIR and DTA-TGA. The in vitro activity of the formulations against Candida krusei and Candida parapsilosis was twice as greater as the commercial cream, probably as a result of the antifungal combination of the drug with the CH activity. All these results suggest that these polymeric films containing ECN are potential candidates in view of alternatives dosages forms for the treatment of the yeast assayed.

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Section: Dissolution Assaysupporting

confidence: 53%

Design, Characterization, and In Vitro Evaluation of Antifungal Polymeric Films

et al. 2012

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“…Antimicrobial activity of chitosan on beer spoilage bacteria and brewing yeasts was studied by Gil et al [174]. In this study antimicrobial activity of chitosan against four strains of LAB L. plantarum (Lp1,2,3), and Pediococcus sp.…”

Section: Chitosanmentioning

confidence: 97%

“…In vitro susceptibility assays in peptone water demonstrated that 0.1 g/L completely inhibited the Pediococcus sp. and Lp2 but 1 g/L chitosan was required to inhibit Lp1 and Lp3 strains [174]. To test the applicability of chitosan to control contamination in the brewing process yeast strain L1 (0.5 Â 10 7 CFU/mL) and Pediococcus sp.…”

Section: Chitosanmentioning

confidence: 99%

Antimicrobial strategies for limiting bacterial contaminants in fuel bioethanol fermentations

Muthaiyan

Limayem

Ricke

2011

Progress in Energy and Combustion Science

111

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“…However, most industrial-scale S. cerevisiae strains cannot grow or ferment at temperature higher than 35°C (Limtong et al, 2007;Watanabe et al, 2010). Moreover, other methods have also been attempted to control Lactobacillus contamination, such as subjoining sulfite and hydrogen peroxide (Chang et al, 1997), adding peptides derived from bovine lactoferrin (Enrique et al, 2009), chitosan (Gil et al, 2004), and sulfuric acid (Pant and Adholeya, 2007;Tang et al, 2010). Sulfuric acid would cause high levels of sulfate ions in the wastewater and heighten the osmotic stress and change pH value of fermentation broth (Narendranath and Power, 2005).…”

Section: Introductionmentioning

confidence: 99%

Control of Lactobacillus plantarum Contamination in Bioethanol Fermentation by Adding Plantaricins

Liu¹,

Liu²,

Zhang³

et al. 2017

IJAB

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Bacteriocin is considered as a potential biological method for controlling bacterial contamination. Plantaricins can inhibit the growth of Lactobacillus species closely related to the producer. In this study, Lactobacillus plantarum ATCC 8014 was cocultivated with Saccharomyces cerevisiae S288C to mimic the bacterial contamination in industrial bioethanol fermentation. Plantaricins produced by L. plantarum ATCC BAA-793 was added into the co-cultivation system to control L. plantarum 8014 contamination. The final ethanol content and cell number of S. cerevisiae and L. plantarum 8014 were determined to assess the controlling effect. Results showed that plantaricins could effectively control L. plantarum contamination and remarkably reduce the inhibition effect on S. cerevisiae. Furthermore, plantaricins did no harm to the S. cerevisiae growth and bioethanol yield. These results suggested the potential of plantaricins as a novel antibacterial agent for controlling L. plantarum contamination during the bioethanol fermentation.

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Selective antimicrobial activity of chitosan on beer spoilage bacteria and brewing yeasts

Cited by 65 publications

References 13 publications

Design, Characterization, and In Vitro Evaluation of Antifungal Polymeric Films

Design, Characterization, and In Vitro Evaluation of Antifungal Polymeric Films

Antimicrobial strategies for limiting bacterial contaminants in fuel bioethanol fermentations

Control of Lactobacillus plantarum Contamination in Bioethanol Fermentation by Adding Plantaricins

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