It is known that the requirement of microorganisms for certain growth factors is influenced by the nutritive medium in a manner analogous to the effect of dietary regimen of animals on their vitamin requirements. In this connection it was found by Williams and Fieger (1) that oleic acid could substitute for biotin in the growth of Lactobacillus casei under their experimental conditions. Axelrod...

Buchanan, B. B. (Duke University, Durham, N.C.), and Leo Pine. Relationship of carbon dioxide to aspartic acid and glutamic acid in Actinomyces naeslundi. J. Bacteriol. 89:729-733. 1965.-CO(2), which was essential for the fermentation of glucose to succinic acid by Actinomyces naeslundii, was also required for the synthesis of internal aspartic acid, for which the cells lack a permease.

No one of the methods proposed for the synthesis of aspartic acid is entirely satisfactory as a practical procedure. The synthesis, described in a recent paper (1) from this laboratory, has been utilized in preparing 50 to 60 gm. lots of recrystallized aspartic acid but even here the beginning reagents are expensive, the over-all yield is only about 30 per cent of the theoretical, and the proce...

BACKGROUND Although abundant research has investigated the hormonal effects of d-aspartic acid in rat models, to date there is limited research on humans. Previous research has demonstrated increased total testosterone levels in sedentary men and no significant changes in hormonal levels in resistance trained men. It was hypothesised that a higher dosage may be required for experienced lifters,...

We hypothesized that administration of estradiol benzoate to males and testosterone propionate to female neonatal rat pups alters sex-specific ventilatory responses to aspartic acid with correspondent changes in N-methyl-D-aspartate receptor subunit 1 (NR1) expression determined by Western blot in specific brain regions. One-day-old rat pups received estradiol benzoate, testosterone propionate,...

The concurrent concentrations of free amino acids in plasma, erythrocytes, lymphosytes, and granulocytes are investigated in healthy men. The concentrations of most amino acids, except for aspartic acid which is much higher in erythrocytes, are more or less similar in plasma and erythrocytes. In lymphocytes the levels of taurine and aspartic acid are 100 and 200 times higher than the plasma lev...

The physicochemical properties of traditional kochujang added with naked oat flours (0, 5, 10, 15%) were periodically examined during fermentation for 20 weeks at 25°C(± 2 °C). proximate composition roasted as follows: water 0.67%, ash 1.63%, fat 10.37%, protein 13.63%, carbohydrates 73.70%. contents decreased gradually according to the addition level. pH increased level, whereas fermentation. ...