Results 1 to 10 of about 114,459 (399)

Prebiotic effects: metabolic and health benefits [PDF]

British Journal of Nutrition, 2010
The different compartments of the gastrointestinal tract are inhabited by populations of micro-organisms. By far the most important predominant populations are in the colon where a true symbiosis with the host exists that is a key for well-being and ...
Glenn R Gibson, Lesley Hoyles, Ian Rowland   +2 more
exaly   +5 more sources

Prebiotic Organic Microstructures [PDF]

Nature Precedings, 2011
AbstractMicro- and sub-micrometer spheres, tubules and fiber-filament soft structures have been synthesized in our experiments conducted with 3 MeV proton irradiations of a mixture of simple inorganic constituents, CO, N2 and H2O. We analysed the irradiation products, with scanning electron microscopy (SEM) and atomic force microscopy (AFM).
Marie-Paule BASSEZ, Yoshinori TAKANO, Kensei KOBAYASHI   +2 more
openaire   +7 more sources

Nitrogen Oxide Concentrations in Natural Waters on Early Earth [PDF]

, 2019
A key challenge in origins-of-life studies is estimating the abundances of species relevant to the chemical pathways proposed to have contributed to the emergence of life on early Earth. Dissolved nitrogen oxide anions (NO$_{X}^{-}$), in particular nitrate (NO$_{3}^{-}$) and nitrite (NO$_{2}^{-}$), have been invoked in diverse origins-of-life chemistry,
Babbin, Andrew R., Ranjan, Sukrit, Rimmer, Paul B., Sasselov, Dimitar D., Todd, Zoe R.   +4 more
arxiv   +3 more sources

Prebiotic Homochirality as a Critical Phenomenon [PDF]

Orig.Life.Evol.Biosph.36:501-505,2006, 2006
The development of prebiotic homochirality on early-Earth or another planetary platform may be viewed as a critical phenomenon. It is shown, in the context of spatio-temporal polymerization reaction networks, that environmental effects -- be them temperature surges or other external disruptions -- may destroy any net chirality previously produced.
A Brandenburg, A Salam, C Wills, DK Kondepudi, DK Kondepudi, FC Frank, H Haken, JA Wattis, Joel Thorarinson, LD Landau, LE Orgel, Marcelo Gleiser, PGH Sandars, PW Lucas, R Gomes, S Weinberg, VA Avetisov, WA Bonner, Y Saito   +18 more
arxiv   +4 more sources

The first peptides: the evolutionary transition between prebiotic amino acids and early proteins [PDF]

Journal of Theoretical Biology 261 (2009) 531-539, 2009
The issues we attempt to tackle here are what the first peptides did look like when they emerged on the primitive earth, and what simple catalytic activities they fulfilled. We conjecture that the early functional peptides were short (3 to 8 amino acids long), were made of those amino acids, Gly, Ala, Val and Asp, that are abundantly produced in many ...
Buhrman, Harry, Gilis, Dimitri, Massar, Serge, Rooman, Marianne, van der Gulik, Peter   +4 more
arxiv   +8 more sources

The roles and potential of lentil prebiotic carbohydrates in human and plant health

Plants People Planet, 2020
Societal Impact Statement Lentils are not only rich in protein and micronutrients, but they also have significant amounts of prebiotic carbohydrates, which provide benefits to human health. Beneficial microorganisms ferment lentil prebiotic carbohydrates
Casey R Johnson, Dil Thavarajah, Shiv Kumar   +2 more
exaly   +2 more sources

Prebiotic digestion and fermentation [PDF]

The American Journal of Clinical Nutrition, 2001
Prebiotics, as currently conceived of, are all carbohydrates of relatively short chain length. To be effective they must reach the cecum. Present evidence concerning the 2 most studied prebiotics, fructooligosaccharides and inulin, is consistent with their resisting digestion by gastric acid and pancreatic enzymes in vivo.
John H. Cummings, G.T. Macfarlane, Hans N. Englyst   +2 more
openalex   +4 more sources

A thermodynamic basis for prebiotic amino acid synthesis and the nature of the first genetic code [PDF]

, 2009
Of the twenty amino acids used in proteins, ten were formed in Miller's atmospheric discharge experiments. The two other major proposed sources of prebiotic amino acid synthesis include formation in hydrothermal vents and delivery to Earth via meteorites.
Chakrabarti S., Paul G. Higgs, Ralph E. Pudritz   +2 more
arxiv   +3 more sources

Carob Syrup: Prebiotic Potential of a Neglected Functional Beverage of Mediterranean Countries [PDF]

Foods
Carob syrup, a traditional Mediterranean functional beverage obtained from Ceratonia siliqua (L.) pods, has been historically valued for its nutritional properties but is currently underutilized.
Lorenzo Nissen, Davide Addazii, Flavia Casciano, Francesca Danesi, Maria Teresa Rodriguez-Estrada, Dario Mercatante, Siwar Ben Ayache, Achour Lotfi, Anagnostis Argiriou, Georgia Ayfantopoulou, Andrea Gianotti   +10 more
doaj   +2 more sources

Unlocking the prebiotic carbohydrates: Insights into the types, preparation, health benefits and future utilizations of selected Indonesian exotic fruit seeds as a potential source of prebiotics [PDF]

Food Chemistry: X
The human gastrointestinal tract, particularly the colon, is densely populated with microflora, primarily Bifidobacteria and Lactobacilli that are responsible for maintaining diet-based human health.
Andri Cahyo Kumoro, Dyah Hesti Wardhani, Tutuk Djoko Kusworo, Yusuf Ma'rifat Fajar Azis, Misbahudin Alhanif, Tan Chin Ping   +5 more
doaj   +1 more source