1959 Volume 3 Issue 1 Pages 49-52
1. Zinc and mercury ions appeared to be toxic to Serratia marcescens; copper, nickel, iodide and bromide ions interefered with the production of 2, 3-butanediol by these organisms.
2. Iron and molybdenum ions exerted a beneficial effect on 2, 3-butanediol formation but with increased consumption of sugar.
3. Sulphide and borate ions decrease the formation; and thiosulphate and and sulphite cut the formation of the diol per 100 ml of the culture to one-half.
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