Results 11 to 20 of about 932,240 (284)

Amino sugars in soil

open access: yesJournal of the Science of Food and Agriculture, 1958
AbstractThe identity of the amino sugars in various soils has been studied by chromatographic techniques. Glucosamine and galactosamine were detected in every soil examined.
Bremner, J. M.
openaire   +2 more sources

The metabolism of amino sugars [PDF]

open access: yes, 1964
The incorporation and distribution of radioactivity from 1-14C-D-glucosamine, N-acetyl-1-14C-D-glucosamine and 1-14C-N-acetyl-D-glucosamine in growing cultures of Bacillus subtilis NCTC 1379 has been investigated. The radioactivity from N-acetyl-1-14C-D-glucosamine is incorporated rapidly and the rate of incorporation is proportional to the external ...
Bates, C.J.
core   +4 more sources

Chiral Sugars Drive Enantioenrichment in Prebiotic Amino Acid Synthesis [PDF]

open access: yesACS Central Science, 2017
Chiral pentose sugars mediate the enantioselective synthesis of amino acid precursors, with the magnitude of the chiral induction dictated by a subtle cooperativity between sugar hydroxyl groups.
Alexander J. Wagner   +3 more
doaj   +2 more sources

Untargeted GC-MS and FT-NIR study of the effect of 14 processing methods on the volatile components of Polygonatum kingianum

open access: yesFrontiers in Plant Science, 2023
IntroductionPolygonatum kingianum is a traditional medicinal plant, and processing has significantly impacts its quality.MethodsTherefore, untargeted gas chromatography-mass spectrometry (GC-MS) and Fourier transform-near-infrared spectroscopy (FT-NIR ...
Yulin Xu   +6 more
doaj   +1 more source

On the Optimization of Hydrolysis Conditions for Simultaneous Determination of Amino Acids and Amino Sugars in Marine Sediments [PDF]

open access: yes, 2013
In the present work different approaches were tested for the optimization of the hydrolysis conditions for the joint determination of amino acids and amino sugars in chitin, an important structural polymer in fungi, invertebrates, algae and the ...
Priotto, Santiago, Lara, Ruben Jose
core   +1 more source

Biochemical Changes During Seed Germination of Sterculia urens Roxb.

open access: yesNotulae Scientia Biologicae, 2011
The present study describes biochemical changes taking place during seed germination of Sterculia urens. The levels of proteins, total amino acids, reducing sugars, total soluble sugars and lipids were studied during various stages of seed germination (0-
Botcha SATYANARAYANA   +2 more
doaj   +3 more sources

Effects of nitrogen and sulfur fertilization on free amino acids, sugars, and acrylamide-forming potential in potato [PDF]

open access: yes, 2013
Nitrogen (N) fertilizer is used routinely in potato (Solanum tuberosum) cultivation to maximize yield. However, it also affects sugar and free amino acid concentrations in potato tubers, and this has potential implications for food quality and safety ...
Powers, S. J.   +9 more
core   +1 more source

Soil Microbial Populations Shift as Processes Protecting Organic Matter Change During Podzolization

open access: yesFrontiers in Environmental Science, 2018
In the upper part of the solum of mineral soils, soil organic and mineral constituents co-evolve through pedogenesis, that in turn impacts the transformation and stabilization of soil organic matter (SOM).
Marie-Liesse Vermeire   +7 more
doaj   +1 more source

Effects of water availability on free amino acids, sugars, and acrylamide-forming potential in potato [PDF]

open access: yes, 2015
Irrigation is used frequently in potato cultivation to maximize yield, but water availability may also affect the composition of the crop, with implications for processing properties and food safety. Five varieties of potatoes, including drought-tolerant
Halford, Nigel G.   +9 more
core   +1 more source

Sources of total, non-milk extrinsic, and intrinsic and milk sugars in the diets of older adults living in sheltered accommodation [PDF]

open access: yes, 2008
The WHO recommends limiting non-milk extrinsic sugars (NMES) consumption to ≤ 10 % energy to reduce the risk of unhealthy weight gain and dental caries, and to restrict frequency of intake to ≤ 4 times/d to reduce risk of dental caries.
Adamson, AshleyJ.   +7 more
core   +1 more source

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