Determination of amino acid content and its enantiomeric composition in honey samples from Mendoza, Argentina

2021 ◽  
Author(s):  
Pamela Y. Quintas ◽  
Sonia Keunchkarian ◽  
Lilian Romero ◽  
Brenda V. Canizo ◽  
Rodolfo G. Wuilloud ◽  
...  
Keyword(s):  
Amino Acid ◽  
Acid Content ◽  
Amino Acid Content ◽  
Enantiomeric Composition

The Oocytes of the Goby Pomatoschistus minutus. III. Determination of Amino Acid Component

1980 ◽  
Vol 35 (11-12) ◽  
pp. 1094-1095
Author(s):  
Rüdiger Riehl
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Glutamic Acid ◽  
Acid Content ◽  
Amino Acid Content ◽  
Acid Component ◽  
Pomatoschistus Minutus ◽  
Protein Amino Acids ◽  
Amino Acid Component

Abstract The oocytes of the marine goby Pomatoschistus minutus were analyzed for their amino acid content. Most of the amino acids exist as protein, only a little part is free or peptide-bound. Among the protein-bound amino acids, high levels of glutamic acid, proline, alanine, aspartic acid, valine and leucine were detected. These represent more than 60% of the protein amino acids. Among the free acids, glutamic acid, serine and alanine, are dominant. There are no certain proofs of the occurrence of peptide pools in the oocytes of Pomatoschistus minutus.

scholarly journals Chromatographic Method for Determination of the Amino Acid Content in Dioscorea bulbifera L. Tubers by RP-HPLC

2019 ◽  
Vol 25 (1) ◽  
pp. 65-69 ◽  
Author(s):  
Musadiq Hussain Bhat ◽  
Mufida Fayaz ◽  
Amit Kumar ◽  
Alamgir Ahmad Dar ◽  
Ashok Kumar Jain
Keyword(s):  
Amino Acids ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Amino Acid ◽  
Acid Content ◽  
High Performance ◽  
Amino Acid Content ◽  
Column Temperature ◽  
Dioscorea Bulbifera

Background: The present study was carried out for determination of amino acid content in tubers of Dioscorea bulbifera using reverse-phase high-performance liquid chromatography. Methods: The method involved the vapor phase hydrolysis of the sample, automated derivatisation of the amino acids with the aid of AccQ-Fluor reagent kit, separated on a high performance liquid chromatography equipped with photo diode array (HPLC-PDA) at 254 nm having column temperature of 37 ºC. Results: The proportional molar concentration for each amino acid was calculated based on the concentration of standard amino acids and expressed as μg amino acid/mg sample. Methionine, aspartic acid and leucine were major components while as tyrosine was found minor from the plant on dry weight basis. Conclusion: The method is reliable, simple and economical for determining the amino acid content of Dioscorea bulbifera tubers.

scholarly journals The influence of hydrolysis and derivatization on the determination of amino acid content and isotopic ratios in dual‐labeled ( 13 C, 15 N) white clover

2018 ◽  
Vol 33 (1) ◽  
pp. 21-30 ◽  
Author(s):  
Kirsten Lønne Enggrob ◽  
Thomas Larsen ◽  
Mogens Larsen ◽  
Lars Elsgaard ◽  
Jim Rasmussen
Keyword(s):  
Amino Acid ◽  
White Clover ◽  
Acid Content ◽  
Amino Acid Content ◽  
Isotopic Ratios
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