Summary: Cider sickness is a disorder of sweet low-acid ciders and perries. The causal organism was isolated after anaerobic incubation of the centrifuged deposit from infected cider on a medium which contained apple juice, 1 % (w/v) yeast extract and 10 μg. Actidione/ml., at pH 4·5. The causal organism found was a Gram-negative motile rod for which the name Zymomonas anaerobia var. pomaceae is proposed on the basis of a comparison of its morphology, cultural and biochemical characters with those of Termobacterium mobile Lindner (synonyms: Pseudomonas lindneri, Zymomonas mobile) and Achromobacter anaerobium Shim well (synonym: Saccharomonas anaerobia). It is proposed that the generic name Zymomonas, Kluyver & van Niel (1936) be adopted for the organisms isolated by Lindner (1928) and Shimwell (1937) and the organism described in this paper. The distinctive character which places these three organisms together in a separate genus in the tribe Pseudomonadeae is their ability to ferment glucose to give almost a theoretical yield of ethanol.
LindnerP.1928Atlas d. Mikrosk. Grundl. der Gärungsk 3 Aufl 2 Cited by Bergey’s Manual of Determinative Bacteriology 1948 , 6th ed.
BreedR. S.,
MurrayE. G. D.,
HitchensA. P.
edited by London: Ballière, Tindall and Cox;
ShimwellJ. L.1937; Study of a new type of beer disease bacterium (Achromobacterium anaerobium spec, nov.) producing alcoholic fermentation of glucose. J. Inst. Brew 43:507
WarcollierG.1928La cidrerie. 3me. ed. Encyclopédic Agricole series Paris: J.-B. Ballière et Fils; CharleyV. L. S. Translated by 1949. London: Leonard Hill Ltd