Prebiotic Synthesis on Minerals: Bridging the Prebiotic and RNA Worlds

1999 ◽  
Vol 196 (3) ◽  
pp. 311-314 ◽  
Author(s):  
J. P. Ferris
Keyword(s):  
Prebiotic Synthesis

scholarly journals β-Galactosidase-Producing Isolates in Mucoromycota: Screening, Enzyme Production, and Applications for Functional Oligosaccharide Synthesis

2021 ◽  
Vol 7 (3) ◽  
pp. 229
Author(s):  
Bettina Volford ◽  
Mónika Varga ◽  
András Szekeres ◽  
Alexandra Kotogán ◽  
Gábor Nagy ◽  
...  
Keyword(s):  
Wheat Bran ◽  
Enzyme Production ◽  
Specific Activity ◽  
Prebiotic Synthesis ◽  
Crude Enzyme ◽  
Oligosaccharide Synthesis ◽  
Industrial Enzymes ◽  
Chromogenic Agar ◽  
Lichtheimia Ramosa ◽  
Excellent Source

β-Galactosidases of Mucoromycota are rarely studied, although this group of filamentous fungi is an excellent source of many industrial enzymes. In this study, 99 isolates from the genera Lichtheimia, Mortierella, Mucor, Rhizomucor, Rhizopus and Umbelopsis, were screened for their β-galactosidase activity using a chromogenic agar approach. Ten isolates from the best producers were selected, and the activity was further investigated in submerged (SmF) and solid-state (SSF) fermentation systems containing lactose and/or wheat bran substrates as enzyme production inducers. Wheat bran proved to be efficient for the enzyme production under both SmF and SSF conditions, giving maximum specific activity yields from 32 to 12,064 U/mg protein and from 783 to 22,720 U/mg protein, respectively. Oligosaccharide synthesis tests revealed the suitability of crude β-galactosidases from Lichtheimia ramosa Szeged Microbiological Collection (SZMC) 11360 and Rhizomucor pusillus SZMC 11025 to catalyze transgalactosylation reactions. In addition, the crude enzyme extracts had transfructosylation activity, resulting in the formation of fructo-oligosaccharide molecules in a sucrose-containing environment. The maximal oligosaccharide concentration varied between 0.0158 and 2.236 g/L depending on the crude enzyme and the initial material. Some oligosaccharide-enriched mixtures supported the growth of probiotics, indicating the potential of the studied enzyme extracts in future prebiotic synthesis processes.

scholarly journals Prebiotic synthesis of aminooxazoline-5′-phosphates in water by oxidative phosphorylation

2017 ◽  
Vol 53 (36) ◽  
pp. 4919-4921 ◽  
Author(s):  
C. Fernández-García ◽  
N. M. Grefenstette ◽  
M. W. Powner
Keyword(s):  
Amino Acids ◽  
Oxidative Phosphorylation ◽  
Prebiotic Synthesis ◽  
Strecker Synthesis ◽  
Novel Strategy

A novel strategy for aminooxazoline-5′-phosphate synthesis in water from prebiotic feedstocks, which is generationally linked to Strecker synthesis of proteinogenic amino acids.

Two-Step Potentially Prebiotic Synthesis of α-d-Cytidine-5‘-phosphate fromd-Glyceraldehyde-3-phosphate

2007 ◽  
Vol 129 (1) ◽  
pp. 24-25 ◽  
Author(s):  
Carole Anastasi ◽  
Michael A. Crowe ◽  
John D. Sutherland
Keyword(s):  
Prebiotic Synthesis

Prebiotic synthesis of carboxylic acids, amino acids and nucleic acid bases from formamide under photochemical conditions⋆

2017 ◽  
Vol 132 (7) ◽  
Author(s):  
Lorenzo Botta ◽  
Bruno Mattia Bizzarri ◽  
Davide Piccinino ◽  
Teresa Fornaro ◽  
John Robert Brucato ◽  
...  
Keyword(s):  
Amino Acids ◽  
Nucleic Acid ◽  
Carboxylic Acids ◽  
Prebiotic Synthesis ◽  
Nucleic Acid Bases

A Prebiotic Synthesis of Pterins

2015 ◽  
Vol 21 (39) ◽  
pp. 13531-13534 ◽  
Author(s):  
Margarita R. Marín-Yaseli ◽  
Cristina Mompeán ◽  
Marta Ruiz-Bermejo
Keyword(s):  
Prebiotic Synthesis

Prebiotic synthesis of purines from metabolic intermediates

1986 ◽  
Vol 16 (3-4) ◽  
pp. 297-298 ◽  
Author(s):  
C. Katsigiannis ◽  
A. Mar ◽  
J. Oró
Keyword(s):  
Prebiotic Synthesis ◽  
Metabolic Intermediates
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