Freeze Dried Leuconostoc oenos for Wine Making
نویسندگان
چکیده
منابع مشابه
Leuconostoc oenos sp.nov.
Nineteen strains of Gram-positive cocci isolated from wine and belonging to the genus Leuconostoc were examined and are considered to form a new species which is named Leuconostoc oenos. These strains differ from other leuconostocs because they grow better in a medium containing tomato juice than in yeast glucose citrate broth normally used in this laboratory for the genus. Furthermore, they gr...
متن کاملControlling Wine Malolactic Fermentation with Nisin and Nisin-Resistant Strains of Leuconostoc oenos.
The polypeptide nisin (100 U/ml) prevented malolactic fermentation in wines by indigenous or intentionally added lactic acid bacteria. Nisin (100 U/ml)-resistant mutants of Leuconostoc oenos were obtained and used with nisin in wine to carry out a pure-culture malolactic fermentation in the presence or absence of other lactic acid bacteria. Nisin degradation by mutants was not observed, and res...
متن کاملCharacterization of Leuconostoc oenos Isolated from Oregon Wines.
This study was designed to characterize isolates of Leuconostoc species from Oregon wines. Gram-positive cocci were isolated, and their biochemical properties and abilities to decompose malic acid were determined. All of the isolates were heterofermentative, catalase negative, and facultatively anaerobic and occurred in pairs and chains. They produced acid from glucose, fructose, mannose, ribos...
متن کاملFreeze-dried B.C.G.
Freeze-dried B.C.G. of British manufacture became available for experimental work in 1955. The main reason for introducing it was the need for a vaccine which would retain its potency under conditions of prolonged storage. On reconstitution for injection the vaccine should produce a uniform suspension with minimal clumping, resulting in a uniform viable bacterial count. These properties mean th...
متن کاملBiochemical basis for glucose-induced inhibition of malolactic fermentation in Leuconostoc oenos.
The sugar-induced inhibition of malolactic fermentation in cell suspensions of Leuconostoc oenos, recently reclassified as Oenococcus oeni (L. M. T. Dicks, F. Dellaglio, and M. D. Collins, Int. J. Syst. Bacteriol. 45:395-397, 1995) was investigated by in vivo and in vitro nuclear magnetic resonance (NMR) spectroscopy and manometric techniques. At 2 mM, glucose inhibited malolactic fermentation ...
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ژورنال
عنوان ژورنال: JOURNAL OF THE BREWING SOCIETY OF JAPAN
سال: 1997
ISSN: 0914-7314,2186-4012
DOI: 10.6013/jbrewsocjapan1988.92.709