A Convenient Approach to the Synthesis of ω-Heterocyclic Amino Acids from Carboxy Lactams through Ring-Chain Transformation; Part 1: Synthesis of (2S)-/(2R)-2-Amino-4-(1-aryl-/1,5-diaryl-1H-pyrazol-3-yl)butyric Acid

SummaryChanges in distribution of amino acid nitrogen of chopped wheat plants ensiled at shooting and flowering when wilted, and at the milk and dough stages as fresh material, were determined as affected by addition of 0·8% propionic acid (PrA) or 2·2% urea phosphate-calcium propionate (UP-CaPr). Analyses were carried out after an ensiling period of 90 days and after a further aerobic exposure period (AE) of 7 days.Total amino acid (TAA) contents in the dry matter (D.M.) during the fermentation period and in the AE were stable in untreated material (UM) and treated material. Concentration of essential amino acids decreased during fermentation, this decrease being higher in the UM. The free amino acids were low in the fresh material (18·6% of TAA) but increased in the ensiled material to ca. 71 % of the TAA in the silage. In the AE this level was 63% in UM and 69% in treated material. The ammonia-N contents increased during fermentation in UM and especially in the UP-CaPr treatments, while the opposite occurred in the PrA treatments.The concentrations of and changes in 21 amino acids (AAs) are given. The highest AA concentrations recorded in the fresh material were those of arginine, lysine, glutamic acid, alanine, leucine, proline and glycine. The most marked increments in AAs as a result of fermentation were those of ornithine, γ-amino butyric acid, threonine and methionine. Marked decreases were observed in glutamine, arginine and glutamic acid. PrA increased mainly arginine, asparagine and glutamine, whereas γ-amino butyric acid decreased; UP-CaPr increased arginine, asparagine, lysine and glutamic acid (in silage only) and reduced γ-amino butyric acid and glutamine (in AE only).

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γ-Amino-Butyric Acid and β-Alanine in Plant Tissues: Amino-Acids of the Apple Fruit

Nature ◽

10.1038/165716a0 ◽

1950 ◽

Vol 165 (4201) ◽

pp. 716-717 ◽

Cited By ~ 32

Author(s):

A. C. HULME ◽

W. ARTHINGTON

Keyword(s):

Amino Acids ◽

Butyric Acid ◽

Apple Fruit ◽

Plant Tissues ◽

Amino Butyric Acid

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Some binuclear oxygen-bridged chromium(III) complexes derived from the amino acids methionine and α-amino-n-butyric acid

Inorganic and Nuclear Chemistry Letters ◽

10.1016/0020-1650(74)80110-8 ◽

1974 ◽

Vol 10 (5) ◽

pp. 367-371 ◽

Cited By ~ 6

Author(s):

C.A. McAuliffe ◽

W.D. Perry

Keyword(s):

Amino Acids ◽

Butyric Acid

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Accumulation, selection and covariation of amino acids in sieve tube sap of tansy (Tanacetum vulgare) and castor bean (Ricinus communis): evidence for the function of a basic amino acid transporter and the absence of a γ-amino butyric acid transporter

Physiologia Plantarum ◽

10.1111/ppl.12153 ◽

2014 ◽

Vol 152 (1) ◽

pp. 130-137

Author(s):

Susanne N. Bauer ◽

Heike Nowak ◽

Frank Keller ◽

Jose Kallarackal ◽

Mohamad-Reza Hajirezaei ◽

...

Keyword(s):

Amino Acids ◽

Amino Acid ◽

Butyric Acid ◽

Castor Bean ◽

Ricinus Communis ◽

Sieve Tube ◽

Basic Amino Acid ◽

Tanacetum Vulgare ◽

Amino Butyric Acid ◽

Acid Transporter

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Free Amino Acids in Human Tonsillar Tissue

Clinical Chemistry ◽

10.1093/clinchem/21.3.414 ◽

1975 ◽

Vol 21 (3) ◽

pp. 414-417 ◽

Cited By ~ 1

Author(s):

Yasuyuki Doi ◽

Akikatsu Kataura

Keyword(s):

Amino Acids ◽

Glutamic Acid ◽

Aspartic Acid ◽

Butyric Acid ◽

Free Amino Acids ◽

Free Amino ◽

Age Groups ◽

Isoleucine Leucine ◽

Amino Butyric Acid ◽

Pathological Conditions

Abstract Free amino acids in the tonsils of 20 individuals were measured column chromatographically. Those always found in readily detectable amounts included O-phosphoserine, taurine, O-phosphoethanolamine, aspartic acid, hydroxyproline, threonine, serine, glutamic acid, proline, glycine, alanine, α-amino-n-butyric acid, valine, cystine, methionine, isoleucine, leucine, tyrosine, phenylalanine, ornithine, γ-amino-butyric acid, lysine, histidine, and arginine. Results were compared for three clinical pathological groups and for four age groups. Some abnormal values may result from the pathological conditions.

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