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Microbial growth at reduced water activities: studies of a w prediction in solutions of compatible solutes
Author(s) -
Chirife J.,
Alzamora S.M.,
Fontan C. Ferro
Publication year - 1983
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1983.tb02626.x
Subject(s) - potassium , chemistry , glycerol , thermodynamics , osmoprotectant , macromolecule , proline , biochemistry , organic chemistry , amino acid , physics
Studies were made of the prediction of intracellular water activity ( a w ) of microorganisms grown at reduced a w . These included the determination and prediction of a w of potassium L‐glutamate solutions and the prediction of a w in mixed solutions of various compatible solutes and macromolecules. Compatible solutes studied were L‐proline, glycerol, potassium chloride and D‐arabitol. The results indicate that a w predictions of such mixtures may be done with acceptable accuracy by neglecting solute‐solute interactions.