Method for detecting guaiacol producing bacteria

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving viable micro-organism

Reexamination Certificate

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C435S041000, C435S028000

Reexamination Certificate

active

07432073

ABSTRACT:
The present invention relates to a method capable of detecting proliferative bacteria in food and beverage, particularly acid or neutral beverage at low cost within a short time, a detection kit which enables simple measurement, and a technology for examination of harmful bacteria in food and beverage with respect to a method for rapid determination of proliferation properties of bacteria capable of producing guaiacol in food and beverage.There is disclosed a method for detecting bacteria capable of producing guaiacol, which comprises culturing or incubating a culture solution containing a specimen for a predetermined time in the presence of vanillic acid, and measuring the produced guaiacol by qualitative or quantitative analysis.Also there is disclosed a kit for detection of bacteria capable of producing guaiacol, comprising a container, and an acid or neutral culture medium containing a vanillic acid substrate for production of guaiacol, which is contained in the container and also sterilized and sealed.Furthermore there is disclosed a method for rapid determination of proliferation properties of bacteria capable of producing guaiacol in food and beverage, which comprises incubating a sporophyte of spore-forming bacteria capable of producing guaiacol for a predetermined time in the food and beverage in the presence of vanillic acid, and measuring the produced guaiacol by qualitative or quantitative analysis.

REFERENCES:
patent: 6235507 (2001-05-01), Muheim et al.
patent: 2003/0129621 (2003-07-01), Takaichi et al.
patent: 7-68 (1995-01-01), None
patent: 07-123998 (1995-05-01), None
Crawford R. et al. Microbial Catabolism of Vanillate. Applied and Environmental Microbiology 36(4)539-543, Oct. 1978.
Pettipher G. et al. Methods for the Detection and Enumeration ofA. acidoterrestrisand Investigation of Growth and Production of Taint in Fruit Juice and Fruit Juice Containing Drinks. Letters in Applied Microbiology vol. 24 185-189, 1997.
JP 7-123998 A (Daiwa Can Co., Ltd.) May 16, 1995 & JP 3177367 B2.
Chow, K. T., et al., Characterization of a vanillic acid non-oxidative decarboxylation gene cluster fromStreptomycessp.D7. Microbiology 1999, vol. 145, pp. 2393-2403.
Crawford, R. L., Microbial catabolism of vanillate: decarboxylation to guaiacol. Appl. Environ. Microbiol. 1978, vol. 36, pp. 539-543.
WO 90/02817 A1 (Oriental Yeast Co., Ltd.) Mar. 22, 1990 & JP 63-214199 A.
Pettipher, G. L., et al., “Methods for the detection and enumeration ofAlicyclobacillus acidoterrestrisand investigation of growth and production of taint in fruit juice and fruit-juice containing drinks”, Lett. Appl. Microbiol., vol. 24, pp. 185-189 (1997).
Orr, R. V., et al., Detection of guaiacol produced byAlicyclobacillus acidoterrestrisin apple juice by sensory and chromatographic analyses, and comparison with spore and vegetative cell populations., J. Food Prot., vol. 63, pp. 1517-1522 (2000).
JP 10-234376 A (Kirin Beverage KK) Sep. 8, 1998 (Abst.).
JP 08-140696 A (Kirin Beverage KK) Jun. 4, 1996 (Abst.).
Jensen, N., et al., Formation of guaiacol in chocolate milk by the psychrotrophic bacteriumRahnella aquatilis, Lett. Appl. Microbiol., vol. 33, pp. 339-343 (2001).
Huang, Z., et al., “Mechanisms of ferulic acid conversions to vanillic acid and guaiacol byRhondotorula rubra”, J. Biol. Chem., vol. 268, pp. 23954-23958 (1993).
Japanese Office Action dated Apr. 7, 2006 for corresponding JP2003-046327.
“Development of Method for Rapidly DetectingA. acidoterrestris, Harmful Bacteria in Beverage” by Matsubara et al., Research Presentation, Research and Development Laboratory of Kirin Beverage Corporation, Sep. 13, 2002, vol. 45, pp. 19-20 and its English translation, pp. 1-3.
“Microbial Catabolism of Vanillate: Decarboxylation to Guaiacol” by Crawford, et al., University of Minnesota, Freshwater Biological Institute and Department of Microbiology, Navarre, Minnesota, Applied and Environmental Microbiology, Oct. 1978, vol. 36, No. 4, pp. 539-543.
Patent Abstracts of Japan for JP7-68 published on Jan. 6, 1995.

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