Phenylacetic acid production by Bacteroides gingivalis from phenylalanine and phenylalanine-containing peptides

1983 ◽  
Vol 29 (9) ◽  
pp. 1184-1189 ◽  
Author(s):  
G. Bourgeau ◽  
D. Mayrand
Keyword(s):  
Amino Acids ◽  
Acid Production ◽  
Phenylacetic Acid ◽  
Cell Suspensions ◽  
Phenylpyruvic Acid ◽  
Phenyllactic Acid ◽  
Maximum Production ◽  
Resting Cell ◽  
Hydrocinnamic Acid ◽  
Bacteroides Gingivalis

Phenylacetic acid production and growth of Bacteroides gingivalis were directly proportional to the trypticase content of the medium. L-Phenylalanine enhanced phenylacetic acid production; 5 mg L-phenylalanine per millilitre stimulated maximum production of phenylacetic acid. Peptides (2–4 amino acids) containing L-phenylalanine also stimulated phenylacetic acid production as did phenylpyruvic acid. Resting cell suspensions of B. gingivalis also produced phenylacetic acid when incubated aerobically in the presence of L-phenylalanine and phenylpyruvic acid. Hydrocinnamic acid (3-phenylpropionic acid) and phenyllactic acid were also produced by resting cell suspensions. Our results suggest that L-phenylalanine and phenylpyruvic acid are both precursors to phenylacetic acid.

Amino group requirement for in vitro intestinal transport of amino acids

1962 ◽  
Vol 202 (1) ◽  
pp. 171-173 ◽  
Author(s):  
Richard P. Spencer ◽  
Ted M. Bow ◽  
Mary Anne Markulis
Keyword(s):  
Amino Acids ◽  
Acetic Acid ◽  
Cinnamic Acid ◽  
Concentration Gradient ◽  
Anthranilic Acid ◽  
Intestinal Transport ◽  
Amino Group ◽  
Phenylpyruvic Acid ◽  
Phenyllactic Acid

The amino group requirement for transintestinal transport of amino acids against a concentration gradient was investigated using hamster everted intestinal sacs. Although glycine (5 x 10–3 m) was transported against a concentration gradient, acetic acid was not. Similarly, l-phenylalanine was transported, whereas phenylpyruvic acid, phenylpropionic acid, phenyllactic acid, and cinnamic acid were not. l-Tryptophan was transported, but indolyllactic acid was not. The amino group was thus essential for transport by this system. n-Methylglycine and l-proline were accumulated from mucosa to serosa against a concentration gradient. Hence, one hydrogen of the amino group can be replaced. However, n-phenylglycine was not accumulated across these preparations, suggesting that the moiety replacing the amino hydrogen can not be sterically bulky. α-l-Alanine was transported against a concentration gradient from mucosa to serosa, but ß-alanine was not. This is in contrast to other systems which accumulate ß-alanine against a concentration gradient. Anthranilic acid, with the amino group in a relative ß position, was also not accumulated across everted intestinal sacs.

Production of phenylacetic acid by Bacteroides melaninogenicus ssp. intermedius serogroup C-1

1983 ◽  
Vol 29 (2) ◽  
pp. 276-279
Author(s):  
Kaethe P. Ferguson ◽  
William R. Mayberry ◽  
Dwight W. Lambe Jr.
Keyword(s):  
Gas Chromatography ◽  
Acid Production ◽  
Phenylacetic Acid ◽  
The Other ◽  
Species Status ◽  
Data Support ◽  
Methyl Derivatives ◽  
Bacteroides Gingivalis ◽  
Derivatives Of

The methyl derivatives of broth cultures of black-pigmented Bacteroides were examined by gas chromatography for production of phenylacetic acid. Two serogroups of B. melaninogenicus ssp. intermedius described by Lambe differed in the ability to produce phenylacetate. Serogroup C failed to produce phenylacetic acid while serogroup C-1 produced small amounts of phenylacetate, which contributed 2.2–5.7% to the total nonvolatile acid profile. Holdeman's newly proposed species "B. intermedius" and "B. corporis" correspond to serogroups C and C-1, respectively. These data support the elevation of the two serogroups of B. melaninogenicus ssp. intermedius to species status. Bacteroides gingivalis produced phenylacetate in significantly larger quantities than B. corporis. Bacteroides melaninogenicus ssp. melaninogenicus, "B. melaninogenicus ssp. levii," and B. asaccharolyticus did not produce phenylacetic acid. These results indicate that phenylacetic acid production may be useful in distinguishing "B. corporis" and B. gingivalis from the other black-pigmented Bacteroides.

DEGRADATION OF AROMATIC AMINO ACIDS BY FUNGI: I. FATE OF L-PHENYLALANINE IN SCHIZOPHYLLUM COMMUNE

1967 ◽  
Vol 45 (11) ◽  
pp. 1659-1665 ◽  
Author(s):  
Keith Moore ◽  
G. H. N. Towers
Keyword(s):  
Amino Acids ◽  
Benzoic Acid ◽  
Protocatechuic Acid ◽  
Phenylacetic Acid ◽  
Schizophyllum Commune ◽  
Aromatic Amino Acids ◽  
Ring Cleavage ◽  
Hydroxybenzoic Acid ◽  
Phenyllactic Acid ◽  
Phenylalanine Metabolism

Growing cultures of Schizophyllum commune could produce 14CO2 from ring-labelled DL-phenylalanine-14C. Intermediates in the pathway of L-phenylalanine degradation prior to ring cleavage were shown to be cinnamic acid, benzoic acid, p-hydroxybenzoic acid, and protocatechuic acid. Phenylacetic acid and L(−)-β-phenyllactic acid were also identified as products of phenylalanine metabolism.

Amino Acids and Fusaric Acid Production in Tissues of Cajanus cajan infected with Fusarium oxysporum f. udum

1974 ◽  
Vol 81 (4) ◽  
pp. 339-345 ◽  
Author(s):  
M. Prasad ◽  
S. K. Chaudhary
Keyword(s):  
Amino Acids ◽  
Fusarium Oxysporum ◽  
Cajanus Cajan ◽  
Acid Production ◽  
Fusaric Acid

Phenyllactic acid production by fed-batch fermentation of Lactobacillus plantarum CECT-221

2010 ◽  
Vol 150 ◽  
pp. 320-320 ◽  
Author(s):  
Noelia Rodríguez ◽  
Jose Manuel Salgado ◽  
Belén Max ◽  
Sandra Cortés ◽  
Jose Manuel Domínguez
Keyword(s):  
Lactobacillus Plantarum ◽  
Acid Production ◽  
Batch Fermentation ◽  
Fed Batch ◽  
Phenyllactic Acid ◽  
Fed Batch Fermentation

Influence of External pH on Alkaloid Production and Excretion by Catharanthus Roseus Resting Cell Suspensions

1987 ◽  
pp. 529-533
Author(s):  
Claudine Nef ◽  
Christian Ambid ◽  
Jean Fallot
Keyword(s):  
Catharanthus Roseus ◽  
Cell Suspensions ◽  
Alkaloid Production ◽  
Resting Cell ◽  
External Ph

scholarly journals 3-Phenyllactic acid production in milk by SK25 during laboratory fermentation process

2015 ◽  
Vol 98 (2) ◽  
pp. 813-817 ◽  
Author(s):  
Shuhuai Yu ◽  
Chen Zhou ◽  
Tao Zhang ◽  
Bo Jiang ◽  
Wanmeng Mu
Keyword(s):  
Acid Production ◽  
Fermentation Process ◽  
Phenyllactic Acid

The sesquiterpene botrydial from Botrytis cinerea induces phosphatidic acid production in tomato cell suspensions

Planta ◽  
2018 ◽  
Vol 247 (4) ◽  
pp. 1001-1009 ◽  
Author(s):  
Juan Martin D’Ambrosio ◽  
Gabriela Gonorazky ◽  
Daniela J. Sueldo ◽  
Javier Moraga ◽  
Andrés Arruebarrena Di Palma ◽  
...  
Keyword(s):  
Phosphatidic Acid ◽  
Botrytis Cinerea ◽  
Acid Production ◽  
Cell Suspensions

Products of anaerobic phloroglucinol degradation by Coprococcus sp. Pe15

1976 ◽  
Vol 22 (2) ◽  
pp. 159-164 ◽  
Author(s):  
Chii-Guary Tsai ◽  
Diane M. Gates ◽  
W. M. Ingledew ◽  
G. A. Jones
Keyword(s):  
Carbon Dioxide ◽  
Acetic Acid ◽  
Rumen Fluid ◽  
Cell Suspensions ◽  
Anaerobic Conditions ◽  
Fluid Medium ◽  
Resting Cell ◽  
Flavonoid Compounds

Under anaerobic conditions, resting cell suspensions of Coprococcus sp. Pe15 degraded 1 molecule of phloroglucinol to 2 molecules of acetic acid and 2 molecules of carbon dioxide. The organism metabolized the flavonoids rhamnetin and quercetin anaerobically in 20% rumen fluid medium but failed to grow under similar conditions at the expense of any of 39 other aromatic or flavonoid compounds tested.

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