Results 291 to 300 of about 98,126 (343)
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Synthetic connectivity, emergence, and self-regeneration in the network of prebiotic chemistry

Science, 2020
Mapping primordial reaction networks Chemists seeking to understand the origins of life have published a wide range of reactions that may have yielded the building blocks of proteins, nucleic acids, and lipids from simple precursors. Wołos et al. scoured
A. Wołoś   +8 more
semanticscholar   +1 more source

Prebiotic Syntheses of Noncanonical Nucleosides and Nucleotides.

Chemical Reviews, 2020
The origin of nucleotides is a major question in origins-of-life research. Given the central importance of RNA in biology and the influential RNA World hypothesis, a great deal of this research has focused on finding possible prebiotic syntheses of the ...
David M Fialho, Tyler P. Roche, N. Hud
semanticscholar   +1 more source

Prebiotic Synthesis of Methionine

Science, 1972
Methionine has been shown to be a product of the action of a spark discharge on a simulated primitive earth atmosphere containing CH 4 , N 2 , NH 3 , H 2 O, and H 2 S or CH 3 SH.
J E, Van Trump, S L, Miller
openaire   +2 more sources

Prebiotic Activation Processes

Nature, 1973
Questions regarding the combination of amino acids and ribonucleotides to polypeptides and polynucleotides are investigated. Each of the reactions considered occurs in the solid state in plausible prebiotic conditions. Together they provide the basis for a unified scheme of amino acid and nucleotide activation. Urea, imidazole and Mg(++) are essential
R, Lohrmann, L E, Orgel
openaire   +2 more sources

Dietary fibers as beneficial microbiota modulators: A proposal classification by prebiotic categories.

Nutrition (Burbank, Los Angeles County, Calif.), 2021
E. Rezende   +2 more
semanticscholar   +1 more source

Effect of resistant starch types as a prebiotic

Applied Microbiology and Biotechnology, 2022
Tuba Tekin, E. Dinçer
semanticscholar   +1 more source

Prebiotic Synthesis on Minerals: Bridging the Prebiotic and RNA Worlds

The Biological Bulletin, 1999
An array of experimental findings suggest that the simple molecules required for the origin of life may have been available on the primitive Earth. The well-known MillerUrey electric discharge experiment yields HCN, amino acids, and carboxylic acids (1). Carbonaceous meteorites contain over 70 amino acids, some heterocyclic compounds, including purines,
openaire   +2 more sources

Probiotics, Prebiotics, and Synbiotics

Journal of Equine Veterinary Science, 2002
Abstract Here is a sneak preview of the forthcoming book Current Therapy in Equine Medicine , 5th edition. This chapter on probiotics, prebiotics, and synbiotics is by J. Scott Weese.
openaire   +1 more source

Challenges of pectic polysaccharides as a prebiotic from the perspective of fermentation characteristics and anti-colitis activity.

Carbohydrate Polymers, 2021
Chengxiao Yu   +9 more
semanticscholar   +1 more source

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