LIQUID YEAST ACTIVATOR, SOLID YEAST ACTIVATOR, PROCESS FOR PRODUCING THE SAME AND PROCESS FOR PRODUCING FERMENTED PRODUCT

摘要

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.