Use of compounds involved in biosynthesis of nucleic acids...

C - Chemistry – Metallurgy – 12 – N

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C12N 1/04 (2006.01) A23C 19/032 (2006.01) A23C 19/068 (2006.01) C12N 1/38 (2006.01)

Patent

CA 2530522

A new type of cryoprotective agents that are useful for retaining the viability and metabolic activity of frozen or freeze-dried microbial cultures, is disclosed. The cryoprotective agent comprises compounds involved in biosynthesis of nucleic acids. Methods for the preparation as well as the uses of such cultures are given. Such cultures are useful as starter cultures in the manufacturing of food and feed products. Starter cultures of the invention include of lactic acid bacteria e.g. Lactococcus species as well as other species.

La présente invention concerne un nouveau type d'agents cryoprotecteurs utilisés pour préserver la viabilité et l'activité métabolique des cultures microbiennes congelées et lyophilisées. L'agent cryoprotecteur de l'invention comprend des composés intervenant dans la biosynthèse des acides nucléiques. L'invention se rapporte également à des procédés de préparation et aux utilisations des cultures précitées. Les cultures sont utilisées comme cultures starter dans la fabrication de produits alimentaires pour humains et animaux. Les cultures starter de l'invention renferment des bactéries de l'acide lactique, par exemple l'espèce Lactococcus, et d'autres espèces également.

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