Results 31 to 40 of about 7,486,222 (302)

Differentiation Between Ripening Stages of Iberian Dry-Cured Ham According to the Free Amino Acids Content [PDF]

open access: yes, 2020
In this paper, the differentiation of three ripening stages, postsalting, drying, and cellar, of Iberian dry-cured ham has been carried out according to their free amino acids contents. Eighteen L-amino acids, alanine, 2-aminobutanoic acid, aspartic acid,
Alcázar Rueda, Ángela   +3 more
core   +1 more source

Physiology of the Amino Acids [PDF]

open access: yesScience, 1942
We have followed the amino acids from their entrance into the alimentary tract in the form of food proteins through the successive steps of digestion, absorption into the blood stream and passage from the blood stream into the tissues, where they are concentrated by some unknown mechanism to many times their concentration in the blood plasma.
openaire   +3 more sources

A search for mid-IR bands of amino acids in the Perseus Molecular Cloud [PDF]

open access: yesarXiv, 2021
Amino acids are building-blocks of proteins, basic constituents of all organisms and essential to life on Earth. They are present in carbonaceous chondrite meteorites and comets, but their origin is still unknown. Formation of amino acids in the interstellar medium is posible via specific gas-phase reactions in dark clouds, however sensitive ...
arxiv  

Enzymatic asymmetric synthesis of chiral amino acids.

open access: yesChemical Society Reviews, 2018
Chiral amino acids are extensively applied in the pharmaceutical, food, cosmetic, agricultural, and feedstuff industries. The development of synthetic methodologies for optically pure amino acids has been driven by their significant applications.
Ya-ping Xue, Cheng-Hao Cao, Yuguo Zheng
semanticscholar   +1 more source

Regulation of macrocycle shuttling in [2]rotaxanes by amino-acid speed bumps in organic-aqueous solvent mixtures [PDF]

open access: yesEur. J. Org. Chem. 2020, 5820-5827, 2020
A homologous series of two-station [2]rotaxanes incorporating amino-acid units in the molecular thread has been developed. The degenerate [2]rotaxanes exhibit amino-acid specific shuttling rates between two fumaric stations related to the steric factor associated to the amino-acid side chain, as demonstrated by variable-temperature 1H NMR spectroscopy ...
arxiv   +1 more source

Amino acid metabolism in health and disease

open access: yesSignal Transduction and Targeted Therapy, 2023
Amino acids are the building blocks of protein synthesis. They are structural elements and energy sources of cells necessary for normal cell growth, differentiation and function.
Zhe-Nan Ling   +5 more
semanticscholar   +1 more source

Supernovae, Neutrinos, and the Chirality of the Amino Acids

open access: yes, 2011
A mechanism for creating an enantioenrichment in the amino acids, the building blocks of the proteins, that involves global selection of one handedness by interactions between the amino acids and neutrinos from core-collapse supernovae is described.
Boyd, R. N., Kajino, T., Onaka, T.
core   +1 more source

Recent advances in the synthesis and application of fluorescent α-amino acids [PDF]

open access: yes, 2016
Fluorescence spectroscopy has become a powerful technique for probing a range of complex biological processes including enzyme mechanisms and protein-protein interactions. While the application of this technique uses a number of strategies, many of these
Harkiss, Alexander, Sutherland, Andrew
core   +1 more source

Amino acid neurotransmitters in the CNS

open access: yesFEBS Letters, 1986
D‐Aspartate exchange, defined as amino acid‐stimulated D‐[3H]aspartate efflux, was investigated in a preparation of rat brain synaptosomes. The efflux of radiolabelled D‐aspartate was found to be enhanced by micromolar concentrations of externally added D‐ and L‐aspartate, L‐glutamate, L‐cysteate.and L‐cysteinesulphinate.
Maria Erecińska, Melody B. Troeger
openaire   +3 more sources

Functions and Signaling Pathways of Amino Acids in Intestinal Inflammation

open access: yesBioMed Research International, 2018
Intestine is always exposed to external environment and intestinal microorganism; thus it is more sensitive to dysfunction and dysbiosis, leading to intestinal inflammation, such as inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), and ...
Fang He   +7 more
semanticscholar   +1 more source

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