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A RAPID SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF YEAST CONCENTRATIONS
Author(s) -
Upperton A. M.
Publication year - 1969
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1969.tb06383.x
Subject(s) - yeast , suspension (topology) , chromatography , wavelength , chemistry , radiation , analytical chemistry (journal) , optics , physics , mathematics , biochemistry , homotopy , pure mathematics
The proposed method utilizes the fact that bright beer does not absorb any radiation in the near infra‐red region whereas particles in suspension scatter at this wavelength in the normal way. This affords a method of measuring yeast concentration directly in undiluted beer. Agreement with counting chamber determinations is good and the technique is simple and rapid.