Method for obtaining variants of lactic acid bacteria usable...

Chemistry: molecular biology and microbiology – Micro-organism – per se ; compositions thereof; proces of... – Bacteria or actinomycetales; media therefor

Reexamination Certificate

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C426S072000, C426S311000

Reexamination Certificate

active

07981657

ABSTRACT:
The present invention relates to the production of variants of lactic bacteria stems that produce, under standard fermentation conditions, at least about 1.2 times more K2 vitamin than the starting lactic bacteria stems cultured in the same conditions. The invention further relates to a method for preparing food products, including fermented products and/or fresh diary products, enriched with K2 vitamin, and to the food products thus obtained.

REFERENCES:
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patent: 63-91091 (1988-04-01), None
patent: 63-198993 (1998-08-01), None
patent: 2000-287676 (2000-10-01), None
Tsukamoto, Y. et al., “Construction of aBacillus subtilis(natto) with High Productivity of Vitamin K2(Menaquinone-7) by Analog Resistance”,Biosc. Biotechnol. Biochem., vol. 65 No. 9 2001, pp. 2007-2015.
Gasson, M. J., “Plasmid Complements ofStreptococcus lactisNCDO 712 and Other Lactic Streptococci After Protoplast-Induced Curing”,Journal of Bacteriology, vol. 154, No. 1, 1983, pp. 1-9.
Morishita, T., et al., “Production of Menaquinones by Lactic Acid Bacteria”,Journal of Dairy Science, vol. 82, No. 9, 1999, pp. 1987-1903. XP-000983779.
Vido, K., et al. “Roles of Thioredixon Reductase during the Aerobic Life ofLactococcus lactis”, Journal of Bacteriology, vol. 187, No. 2, Jan. 2005, pp. 601-610. XP-002430548.
Hart, J. P., et al., “Electrochemical Detection of Depressed Circulating Levels of Vitamin K1in Osteoporosis”,Journal of Clinical Endocrinology and Metabolism, vol. 60, No. 6, Jan. 1985, pp. 1268-1269.

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