Antimicrobial agent against acid-resistant and heat-resistant bacteria
AssigneesDirector General of Shikoku National Agricultural Experiment Station, Ministry of Agriculture, Forestry and Fisheries
InventorShigeru Oita
Life of this patent
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Abstract
An antimicrobial agent with a high degree of safety is provided, which is derived from a natural product and can exhibit growth-inhibitory activity against acid-resistant and heat-resistant bacteria such as Alicyclobacillus acidoterrestris, which is resistant against pasteurization and causes spoilage of fruit juice. The antimicrobial agent against acid-resistant and heat-resistant bacteria contains as an effective ingredient alpha-type thionin and/or beta-type thionin. A preservative for fruit juice is also provided, which contains as an effective ingredient the alpha-type thionin and/or beta-type thionin.
Claims15
A fruit-juice comprising a thionin.
A method for preserving a fruit juice or retarding the spoilage of a fruit juice comprising adding an amount of a thionin to said fruit juice effective to preserve said fruit juice or retard the spoilage of said fruit juice.
A method of inhibiting the growth of an acid-resistant or heat-resistant bacteria belonging to the genus Alicyclobacillus, comprising contacting said bacterium with an effective amount of a thionin.
Dependencies are inferred from the claim text.