scholarly journals Data on recovery of 21 amino acids, 9 biogenic amines and ammonium ions after spiking four different beers with five concentrations of these analytes

Data in Brief ◽  
2016 ◽  
Vol 9 ◽  
pp. 398-400 ◽  
Author(s):  
Begoña Redruello ◽  
Victor Ladero ◽  
Beatriz del Rio ◽  
María Fernández ◽  
M. Cruz Martín ◽  
...  
Keyword(s):  
Amino Acids ◽  
Biogenic Amines ◽  
Ammonium Ions

A UHPLC method for the simultaneous analysis of biogenic amines, amino acids and ammonium ions in beer

2017 ◽  
Vol 217 ◽  
pp. 117-124 ◽  
Author(s):  
Begoña Redruello ◽  
Victor Ladero ◽  
Beatriz del Rio ◽  
María Fernández ◽  
M.C. Martin ◽  
...  
Keyword(s):  
Amino Acids ◽  
Biogenic Amines ◽  
Simultaneous Analysis ◽  
Ammonium Ions

scholarly journals Metabolomic-Based Comparison of Traditional and Industrial Doenjang Samples with Antioxidative Activities

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1377
Author(s):  
Song-Hui Soung ◽  
Sunmin Lee ◽  
Seung-Hwa Lee ◽  
Hae-Jin Kim ◽  
Na-Rae Lee ◽  
...  
Keyword(s):  
Amino Acids ◽  
Statistical Analysis ◽  
Organic Acids ◽  
Biogenic Amines ◽  
Multivariate Statistical Analysis ◽  
Metabolite Profiling ◽  
New Products ◽  
Multivariate Statistical ◽  
Fermentation Processes

Numerous varieties of doenjang are manufactured by many food companies using different ingredients and fermentation processes, and thus, the qualities such as taste and flavor are very different. Therefore, in this study, we compared many products, specifically, 19 traditional doenjang (TD) and 17 industrial doenjang (ID). Subsequently, we performed non-targeted metabolite profiling, and multivariate statistical analysis to discover distinct metabolites in two types of doenjang. Amino acids, organic acids, isoflavone aglycones, non-DDMP (2,3-dihydro-2,5-dihydroxy-6-methyl-4H-pyran-4- one) soyasaponins, hydroxyisoflavones, and biogenic amines were relatively abundant in TD. On the contrary, contents of dipeptides, lysophospholipids, isoflavone glucosides and DDMP-conjugated soyasaponin, precursors of the above-mentioned metabolites, were comparatively higher in ID. We also observed relatively higher antioxidant, protease, and β-glucosidase activities in TD. Our results may provide valuable information on doenjang to consumers and manufacturers, which can be used while selecting and developing new products.

scholarly journals A validated UPLC-MS/MS assay for the quantification of amino acids and biogenic amines in rat urine

2019 ◽  
Vol 1106-1107 ◽  
pp. 50-57 ◽  
Author(s):  
Nicola Gray ◽  
Robert S. Plumb ◽  
Ian D. Wilson ◽  
Jeremy K. Nicholson
Keyword(s):  
Amino Acids ◽  
Biogenic Amines ◽  
Rat Urine

Survey of multiple biogenic amines and correlation to microbiological quality and free amino acids in foods

Food Control ◽  
2021 ◽  
Vol 120 ◽  
pp. 107497 ◽  
Author(s):  
D. Sylvain Dabadé ◽  
Liesbeth Jacxsens ◽  
Lisa Miclotte ◽  
Emmanuel Abatih ◽  
Frank Devlieghere ◽  
...  
Keyword(s):  
Amino Acids ◽  
Biogenic Amines ◽  
Free Amino Acids ◽  
Free Amino ◽  
Microbiological Quality

scholarly journals The attempt to explain the various reaktions of rape and corn plants on the nitrogen usee in the ammonium or nitrate forms

2013 ◽  
Vol 46 (1) ◽  
pp. 39-49
Author(s):  
Zofia Uziak ◽  
Edward Borowski ◽  
Zbyszek Blamowski
Keyword(s):  
Amino Acids ◽  
Biomass Yield ◽  
Organic N ◽  
Lower Content ◽  
Ammonium Ions ◽  
Total N ◽  
Similar Content ◽  
Free Ammonium ◽  
Corn Plants ◽  
N Fractions

The reaction of the rape and corn plants on the nitrogen applied in the form NO<sub>3</sub><sup>-</sup> or NH<sub>4</sub><sup>+</sup> was studied under the controlled conditions. The ammonium ions with rape markedly lowered the growth rate, the intensity of photosynthesis and biomass yield, with relation to the plants fertilized with nitrates. With corn the effect of both N-forms was similar and positive. The biomass of the rape using NH<sub>4</sub><sup>+</sup>, with relation to the plants fertilized with NO<sub>3</sub><sup>-</sup> showed lower content of total N, and protein N, as well as markedly higher content of amino-acids of primary protein synthesis and their amides and free ammonium ions. Yet, the corn utilizing N-NH<sub>4</sub><sup>+</sup> showed, as compared with the plants fertilized with NO<sub>3</sub><sup>-</sup>, higher content of all studied organic N fractions. with similar content of free ammonium ions. This paper presents the thesis that the cause of the growth inhibition of rape fertilized with ammonium is low, as compared with corn, assimilation of NH<sub>4</sub><sup>+</sup> ions drawn in the roots of this plant.

Mise en évidence d'une activité uréasique chez Streptococcus thermophilus

1988 ◽  
Vol 34 (6) ◽  
pp. 818-822 ◽  
Author(s):  
V. Juillard ◽  
M. J. Desmazeaud ◽  
H. E. Spinnler
Keyword(s):  
Amino Acids ◽  
Urease Activity ◽  
Culture Medium ◽  
Colorimetric Method ◽  
Streptococcus Thermophilus ◽  
Stationary Growth Phase ◽  
Optimal Temperature ◽  
Ammonium Ions ◽  
Stationary Growth ◽  
Optimal Ph

In Streptococcus thermophilus CNRZ 404, the presence of urease activity was demonstrated by means of a specific colorimetric method for ammonium ions. The main physicochemical properties of the enzyme were determined. The Km with urea as substrate was 1.19 mM and the optimal pH was approximately 7.5. Because both thermolability and enzyme activity increased as the temperature was increased to 70 °C, the optimal temperature could not be determined with precision. Urease activity was maximal at the beginning of the stationary growth phase; it was stimulated by the presence of urea and of certain amino acids such as arginine and glutamic acid in the culture medium. This activity has been detected in several other strains of Streptococcus thermophilus. [Translated by the journal]

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