Liquid yeast activator, solid yeast activator and...

C - Chemistry – Metallurgy – 12 – C

Patent

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C12C 11/06 (2006.01) C12C 7/00 (2006.01) C12C 11/00 (2006.01) C12N 1/18 (2006.01)

Patent

CA 2436251

A process for producing a yeast activator which comprises immersing barley, malt or malt root in an acid containing phosphoric acid, etc., then eliminating the solid residue to thereby give a supernatant, neutralizing the supernatant by adding a precipitation accelerator such as calcium chloride, and separating the solid precipitate formed by the neutralization to give a solid yeast activator. In this case, barely and the like contain little moisture and thus can be easily stored and handled. Moreover, barley and the like contain little lipids and thus no procedure for eliminating lipids, etc. is needed. Thus, yeasts can be fully activated without worsening the qualities of fermented products such as beer.

La présente invention concerne un procédé de production d'un activateur de levure comportant l'immersion de l'orge, du malt ou de racine de malt dans un acide contenant de l'acide phosphorique, ou analogue, l'élimination du résidu solide en vue de produire un surnageant, la neutralisation du surnageant par l'addition d'un accélérateur de précipitation tel que le chlorure de calcium, et la séparation du précipité solide obtenu par la neutralisation pour obtenir un activateur de levure solide. Dans ce cas, l'orge et analogue contiennent peu d'humidité et peuvent ainsi être facilement conservé et utilisé. Par ailleurs, l'orge et analogue contiennent peu de lipides et donc aucune opération d'élimination de lipides n'est requise. Ainsi, de levures peuvent être complètement activées sans affecter les propriétés des produits fermentés tels que la bière.

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