Determination of Amino Acid Needs of the Young Pig by Nitrogen Balance and Plasma-Free Amino Acids

Determination of the free amino acid and lactate content of testicular tissue in rat, guinea pig, rabbit, cat, gerbil, hamster, chicken and bullfrog indicates a substantial species variation. Insulin hypoglycaemia and ammonium acetate toxicity changes the concentration of several free amino acids of rat testes. 14C radioactivity from labelled acetate and ethanol is rapidly incorporated into some of the free amino acids of rat testes in vivo, whereas incorporation from [14C]glucose is relatively slow. These results have been compared with those obtained from similar studies with rat brain. In contrast to brain, there is no evidence for glutamate compartmentation in testes.

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Determination of free amino acid and biogenic amine contents of hungarian sparkling wines

Czech Journal of Food Sciences ◽

10.17221/10683-cjfs ◽

2004 ◽

Vol 22 (SI - Chem. Reactions in Foods V) ◽

pp. S287-S289 ◽

Cited By ~ 1

Author(s):

L. Simon-Sarkadi ◽

E. Szőke ◽

A. Kerekes

Keyword(s):

Amino Acids ◽

Amino Acid ◽

Biogenic Amines ◽

Free Amino Acid ◽

Biogenic Amine ◽

Free Amino Acids ◽

Free Amino ◽

Exchange Chromatography ◽

Sparkling Wine

Comparative study was conducted on the basis of free amino acids and biogenic amines of Hungarian sparkling wines originated from 3 producers (Törley, Hungária, Balaton Boglár). Determination of amino acids and biogenic amines was accomplished by ion-exchange chromatography using an amino acid analyser. The dominant free amino acids in sparkling wines were proline and arginine and the major biogenic amine was spermidine. Based on results of chemometric analyses, free amino acid and biogenic amine contents seemed to be closely related to quality and the technology of sparkling wine making.

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A COMPARISON OF THE EFFECT OF DIETARY FAT AND CARBOHYDRATE ON FREE AMINO ACIDS IN THEBLOOD PLASMA OF CHICKS

Canadian Journal of Physiology and Pharmacology ◽

10.1139/y67-025 ◽

1967 ◽

Vol 45 (2) ◽

pp. 225-234 ◽

Cited By ~ 8

Author(s):

Tsang-Cheng Shao ◽

D. C. Hill

Keyword(s):

Amino Acids ◽

Amino Acid ◽

Dietary Fat ◽

Free Amino Acids ◽

Free Amino ◽

Plasma Amino Acid ◽

Considerable Time ◽

Lower Plasma ◽

Amino Acid Levels ◽

Plasma Free Amino Acids

As previously reported, an increased concentration of plasma free amino acids, particularly lysine and threonine, was found when chicks were fasted for 24 hours. This increase was suppressed where a nonprotein diet was fed. Dextrose as the chief energy source in the nonprotein diet was more effective than shortening or lard in this respect. However, the degree to which the two energy sources differed was less where birds were adapted to the utilization of fat by feeding a diet rich in fat for a considerable time before making the comparison. Insulin administration to fasted chicks was found to lower plasma amino acid levels. The possible influence of interrelationships among dextrose, fat, and insulin on plasma amino acid levels is discussed.

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