The effect and osmotic characteristics of sugars for the growth of Saccharomyces rouxii T_9 were examined and their results obtained were as follows.
(1) The best effective sugars for the growth of Saccharomyces rouxii T_9 were inulin, fructose and maltose.
(2) Glucose, saccharose, galactose and arabinose were more effective on the media containing 20 percent of NaCl than containing none of NaCl, while fructose, inulin, xylose, sorbitol, raffinose, mannitol, mannose, trehalose and rhamnose were more effective on the media containing none of NaCl.
(3) Maltose and lactose were excellent for the growth of Saccharomyces rouxii T_9 as addition of 5 to 10 percent on the media containing NaCl and more good in case of 15 percent or more addition on the media containing none of NaCl.
(4) Saccharomyces rouxii T_9 was generally grown well on the media at the range of containing 15 to 30 percent of sugar concentration.
(5) Saccharomyces rouxii T_9 was grown up to 80 percent concentration of glucose and 90 of saccharose and maltose.
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