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Chemicals and lemon essential oil effect on Alicyclobacillus acidoterrestris viability.

Maldonado MC, Aban MP, Navarro AR - Braz. J. Microbiol. (2014)

Bottom Line: The results pointed out that sodium benzoate (500-1000-2000 ppm) and lemon essential oil (0.08-0.12-0.16%) completely inhibited the germination of A. acidoterrestris spores in MEB medium and LJC for 11 days.Potassium sorbate (600-1200 ppm) was more effective to inhibit the growth of the microbial target in lemon juice than in MEB medium.The effect of sodium benzoate, potassium sorbate and essential oil was sporostatic in MEB and LJC as they did not affect spore viability.

View Article: PubMed Central - PubMed

Affiliation: Instituto de Biotecnología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina.

ABSTRACT
Alicyclobacillus acidoterrestris is considered to be one of the important target microorganisms in the quality control of acidic canned foods. There is an urgent need to develop a suitable method for inhibiting or controlling the germination and outgrowth of A.acidoterrestris in acidic drinks. The aim of this work was to evaluate the chemicals used in the lemon industry (sodium benzoate, potassium sorbate), and lemon essential oil as a natural compound, against a strain of A.acidoterrestris in MEB medium and in lemon juice concentrate. The results pointed out that sodium benzoate (500-1000-2000 ppm) and lemon essential oil (0.08-0.12-0.16%) completely inhibited the germination of A. acidoterrestris spores in MEB medium and LJC for 11 days. Potassium sorbate (600-1200 ppm) was more effective to inhibit the growth of the microbial target in lemon juice than in MEB medium. The effect of sodium benzoate, potassium sorbate and essential oil was sporostatic in MEB and LJC as they did not affect spore viability.

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Related in: MedlinePlus

Germination of A. acidoterrestris spores in ME + potassium sorbate. Data are accompanied by the standard deviation.
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Related In: Results  -  Collection


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f2-bmj-44-4-1133: Germination of A. acidoterrestris spores in ME + potassium sorbate. Data are accompanied by the standard deviation.

Mentions: Potassium sorbate was not effective in the spore germination control, because 600 ppm of it inhibited growth for 2 days with a significant absorbance increase after 6 days of storage and population number at the end of the running time was lower, than that recorded in the control sample (Figure 2). A higher concentration of this compound (1200 ppm), however, prolonged the lag phase (time before the beginning of spore outgrowth) to 7 days.


Chemicals and lemon essential oil effect on Alicyclobacillus acidoterrestris viability.

Maldonado MC, Aban MP, Navarro AR - Braz. J. Microbiol. (2014)

Germination of A. acidoterrestris spores in ME + potassium sorbate. Data are accompanied by the standard deviation.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3958178&req=5

f2-bmj-44-4-1133: Germination of A. acidoterrestris spores in ME + potassium sorbate. Data are accompanied by the standard deviation.
Mentions: Potassium sorbate was not effective in the spore germination control, because 600 ppm of it inhibited growth for 2 days with a significant absorbance increase after 6 days of storage and population number at the end of the running time was lower, than that recorded in the control sample (Figure 2). A higher concentration of this compound (1200 ppm), however, prolonged the lag phase (time before the beginning of spore outgrowth) to 7 days.

Bottom Line: The results pointed out that sodium benzoate (500-1000-2000 ppm) and lemon essential oil (0.08-0.12-0.16%) completely inhibited the germination of A. acidoterrestris spores in MEB medium and LJC for 11 days.Potassium sorbate (600-1200 ppm) was more effective to inhibit the growth of the microbial target in lemon juice than in MEB medium.The effect of sodium benzoate, potassium sorbate and essential oil was sporostatic in MEB and LJC as they did not affect spore viability.

View Article: PubMed Central - PubMed

Affiliation: Instituto de Biotecnología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina.

ABSTRACT
Alicyclobacillus acidoterrestris is considered to be one of the important target microorganisms in the quality control of acidic canned foods. There is an urgent need to develop a suitable method for inhibiting or controlling the germination and outgrowth of A.acidoterrestris in acidic drinks. The aim of this work was to evaluate the chemicals used in the lemon industry (sodium benzoate, potassium sorbate), and lemon essential oil as a natural compound, against a strain of A.acidoterrestris in MEB medium and in lemon juice concentrate. The results pointed out that sodium benzoate (500-1000-2000 ppm) and lemon essential oil (0.08-0.12-0.16%) completely inhibited the germination of A. acidoterrestris spores in MEB medium and LJC for 11 days. Potassium sorbate (600-1200 ppm) was more effective to inhibit the growth of the microbial target in lemon juice than in MEB medium. The effect of sodium benzoate, potassium sorbate and essential oil was sporostatic in MEB and LJC as they did not affect spore viability.

Show MeSH
Related in: MedlinePlus