scholarly journals Free Amino Acid and Storage Protein Composition of Soybean Fruit Explants and Isolated Cotyledons Cultured with and without Methionine

1997 ◽  
Vol 79 (5) ◽  
pp. 547-552 ◽  
Author(s):  
A. C. G. Horta ◽  
L. Sodek
Keyword(s):  
Amino Acid ◽  
Free Amino Acid ◽  
Storage Protein ◽  
Free Amino ◽  
Protein Composition ◽  
Fruit Explants ◽  
And Storage

scholarly journals Free Amino Acids in Peanuts as Affected by Seed Size and Storage Time1

1981 ◽  
Vol 8 (2) ◽  
pp. 113-116 ◽  
Author(s):  
Harold E. Pattee ◽  
Clyde T. Young ◽  
Francis G. Giesbrecht
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Free Amino Acid ◽  
Seed Size ◽  
Free Amino Acids ◽  
Free Amino ◽  
Storage Conditions ◽  
Commercial Source ◽  
And Storage

Abstract Peanuts from a commercial source were segregated into specific seed sizes and placed in storage conditions approximating commercial conditions to determine the amino acid changes taking place during storage within various size seeds. Concentrations of the isolated free amino acid fractions significantly decreased with seed size except for phenylalanine which significantly increased with seed size. Significant changes also occurred in the free amino acid fractions across storage periods up to nine months in duration. These results are the first to document a change in amino acids during the storage of peanuts.

scholarly journals Free Amino Acids and Biogenic Amines in Canned European Eels: Influence of Processing Step, Filling Medium and Storage Time

Foods ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1377
Author(s):  
Lucía Gómez-Limia ◽  
Roxana Cutillas ◽  
Javier Carballo ◽  
Inmaculada Franco ◽  
Sidonia Martínez
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Biogenic Amines ◽  
Free Amino Acid ◽  
Biogenic Amine ◽  
Free Amino Acids ◽  
Free Amino ◽  
Storage Time ◽  
Amino Acid Content ◽  
And Storage

This study evaluated the effects of the canning process and different filling media on the free amino acid and biogenic amine contents of eels. The main free amino acids were histidine, taurine and arginine, which constituted 72% of the free amino acids in raw eels. All steps in the canning process significantly altered the free amino acid content of eels, relative to raw samples. The changes were influenced by the step, the composition of the frying or filling medium and the storage time. The biogenic amine contents were very low in all samples. Histamine was not detected in either raw eels or canned eels. The highest values were obtained for 2-phenylethylamine. The step of the canning process, the composition of the frying or filling medium and storage time also determined the changes in the biogenic amine contents. The biogenic amines indices were low, indicating the good quality of canned eels.

STUDY OF HYDROLYZED PROTEIN COMPOSITION, FREE AMINO ACID, AND TAURINE CONTENT IN DIFFERENT MUSCLES OF GALICIAN BLONDE BEEF

2010 ◽  
Vol 21 (4) ◽  
pp. 769-784 ◽  
Author(s):  
DANIEL FRANCO ◽  
LAURA GONZÁLEZ ◽  
ESPERANZA BISPO ◽  
PATRICIA RODRÍGUEZ ◽  
JOSÉ IGNACIO GARABAL ◽  
...  
Keyword(s):  
Amino Acid ◽  
Free Amino Acid ◽  
Free Amino ◽  
Protein Composition ◽  
Hydrolyzed Protein

Formulation of Proteins in Vacuum-Dried Glasses. II. Process and Storage Stability in Sugar-Free Amino Acid Systems

1999 ◽  
Vol 4 (2) ◽  
pp. 199-208 ◽  
Author(s):  
Markus Mattern ◽  
Gerhard Winter ◽  
Ulrich Kohnert ◽  
Geoffrey Lee
Keyword(s):  
Amino Acid ◽  
Free Amino Acid ◽  
Free Amino ◽  
Storage Stability ◽  
And Storage

scholarly journals Estimating the number of protein molecules in a plant cell: a quantitative perspective on proteostasis and amino acid homeostasis during progressive drought stress

2020 ◽  
Author(s):  
Björn Heinemann ◽  
Patrick Künzler ◽  
Hans-Peter Braun ◽  
Tatjana M. Hildebrandt
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Drought Stress ◽  
Free Amino Acid ◽  
Plant Cell ◽  
Free Amino ◽  
Protein Composition ◽  
Mesophyll Cell ◽  
Protein Molecules ◽  
Amino Acid Homeostasis

AbstractDuring dehydration cellular proteostasis as well as amino acid homeostasis are severely challenged, since the decrease in photosynthesis induces massive proteolysis. Thus, we selected progressive drought stress in Arabidopsis thaliana as a model to investigate the balance between protein and free amino acid homeostasis on a quantitative level. We analyze the mass protein composition of rosette leaves and estimate, how many protein molecules are present in a plant cell and its subcellular compartments. Under control conditions, an average Arabidopsis mesophyll cell contains about 25 billion protein molecules and 80% of them are localized in the chloroplasts. Severe water deficiency leads to degradation of more than 40% of the leaf proteome and thus causes a drastic shift towards the free amino acid pool. Stress induced proteolysis of half of the 400 million RubisCO hexadecamers present in the chloroplasts of an individual mesophyll cell alone doubles the cellular content in free amino acids. A major fraction of the amino acids released from proteins is channeled into the synthesis of proline as a compatible osmolyte. Complete oxidation of the remaining part as an alternative respiratory substrate can fully compensate the lack of carbohydrates derived from photosynthesis for several hours.

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