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Investigation of Compounds of High Caloric Density
註釋Synthesis of 2,4-dimethylheptanoic acid has been completed. Preliminary acute toxicity tests indicated that 2,4-dimethylheptanoic acid has a low order of toxicity (LD50 -5 gm/kg) similar to other short-chain fatty acids. To facilitate metabolic studies, synthesis of the compound labeled C 14 has begun and techniques for quantitative identification of probable metabolic products have been developed. Further studies were made of the factors influencing the caloric bio-assay. A series of animal metabolic studies has indicated that odd-carbon fatty acids may be partly glucogenic. In addition, 1,3-butanediol was utilized for energy at approximately 6.0 cal/gm in high-fat diets. The slower growth of animals fed this compound at levels up to 20 percent of the diet was due to decreased food intake. Seven-month feeding tests have verified the the effectiveness of 1,3-butanediol and high-fat levels for dietary use under various conditions.