ISSN:
1432-072X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary 1. The cis-forms of higher, unsaturated fatty acids, oleic and erucic markedly stimulated riboflavin synthesis while the transforms, elaidic and brassidic, had no effect. C8−C12 saturated fatty acids completely arrested the growth. 2. Some, locally available, oils showed some stimulation to riboflavin synthesis while showing a greater stimulation to growth. However the hydrolysates of these oils were either completely inhibitive to, ineffective upon, or slightly stimulatory to riboflavin synthesis. 3. The stimulation of oleic acid of the hydrolysates of olive oil depended upon the preservation of its degree of unsaturation. 4. The strong stimulation, caused by the nonsap. materials of lanolin, accounts for almost all the stimulation caused by the hydrolysates of this fat. However, cholesterol is not the nonsap. material responsible for this stimulation. 5. Some surface active agents such as lecithin, and saponin stimulated the vitamin formation. Of the detergents tested only tween 80 and, to a lesser extent, tween 60 showed a marked increase in the riboflavin yield in the shake cultures.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00422187
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