Journal . s for thispurpose by which large quantities of pure yeast could beprepared with certainty from a single cell by contimuMlgrowth, be constructed, in conjunction with Kiihle. an appa-ratus for the preparation and growth of pure yeast on alarge scale ; this apparatus has been lu use for some timein the breweries of Alt- and Neu-Carlsberg. The author,in conjunction with Feltmann, has also devised an appa-ratus, with some alterations, for the same purpose, and thishas been in use in the Heineckeii brewery, apparatus consists of two parts, a steriliser and afermenting vessel,
Journal . s for thispurpose by which large quantities of pure yeast could beprepared with certainty from a single cell by contimuMlgrowth, be constructed, in conjunction with Kiihle. an appa-ratus for the preparation and growth of pure yeast on alarge scale ; this apparatus has been lu use for some timein the breweries of Alt- and Neu-Carlsberg. The author,in conjunction with Feltmann, has also devised an appa-ratus, with some alterations, for the same purpose, and thishas been in use in the Heineckeii brewery, apparatus consists of two parts, a steriliser and afermenting vessel, of tinned copjier. The steriliser (Fig. 1)is I20 m. high, and OC m. diameter; it is closed by anair-tight lid, and has a jacket thnmgh w hich steam or coldwater can be passed. A is a safety-vahe, B the inlet forcold water. Two ventilatms, C ami D, .iilmit filtered airand pass into the wort; the bent tube, K, is for the exit of 44ft THE JOURNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. i ., isss. Fi-. tlu steam gi-iieniteil in tlic vissel ; it is ri-julatetl by thetup V. A ilfliiiite nianfiiiieter and thernioinelei allows thejirossmv ami tempLiaturc in Iho vessel to be observed. Thewort is ilrawu otf by (he thiee-way tap (i. The vessel istwo-lliinls tilled with wort fioiii the coolei, ami (his, afterreplaeeraeut of the lid, is boiled. It is then stirred andaerated, whilst excess of pressure is prevented by meansof air filtered throiisih sterilised cotton-wool. The fermeiitiufi vessel (Fi;;. 2) has also two ventilators,V and D, for ai-iatiou, an exit tube, E, for the carbonic acid, Fi. 2,
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
