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EFFECT OF ALKALINE‐EARTH METAL SALTS ON FLOCCULENCE IN SACCHAROMYCES CEREVISIAE
Author(s) -
Taylor Neil W.,
Orton William L.
Publication year - 1973
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.2050-0416.1973.tb03543.x
Subject(s) - alkaline earth metal , chemistry , flocculation , salt (chemistry) , saccharomyces cerevisiae , metal , ionic bonding , inorganic chemistry , metal ions in aqueous solution , ion , biochemistry , yeast , organic chemistry
Flocculation in three strains of Saccharoymces cerevisiae is inhibited by two classes of ionic substances: (1) the alkaline‐earth metal ions Sr and Ba, and (2) Ca complexing substances. Sr appears to be competitive with Ca in the flocculence mechanism because the extent of inhibition depends mainly on the ratio of Sr and Ca concentrations. The observations imply that the Ca requirement for flocculation is by a specific, unique process, and not by the commonly presumed charge neutralization or Ca salt‐bridging mechanism.