نتایج جستجو برای: nitrogen form
تعداد نتایج: 805103 فیلتر نتایج به سال:
14 15 16 The impact of using Trepat and Monastrell red grape varieties during the manufacture 17 of rosé sparkling Cava wines on the nitrogen and volatile composition compared to a 18 white Cava manufactured with a blend of typical white grape varieties (Xarello: 19 Macabeo: Parellada) has been investigated. The wines were industrially manufactured 20 in a cellar, and the concentrations of outs...
One of the major factors in the nitrogen metabolism of animals is the phenomenon of protein turnover i.e. the continual breakdown and synthesis of body protein, the resultant of which is protein deposition. The measurement of these processes has consequently attracted much interest although, for reasons of technique, attention has focused upon measurements of protein synthesis, protein breakdow...
Nitrogen is quantitatively the most important nutrient that plants acquire from the soil. It is well established that plant roots take up nitrogen compounds of low molecular mass, including ammonium, nitrate, and amino acids. However, in the soil of natural ecosystems, nitrogen occurs predominantly as proteins. This complex organic form of nitrogen is considered to be not directly available to ...
HetR is a serine-type protease required for heterocyst differentiation in heterocystous cyanobacteria under conditions of nitrogen deprivation. We have identified the active Ser residue of HetR from Anabaena sp. strain PCC 7120 by site-specific mutagenesis. By changing the S152 residue to an Ala residue, the mutant protein cannot be labeled by Dansyl fluoride, a specific serine-type protein inh...
N-Alkenyl carboxamides undergo gold-catalyzed intramolecular exo-hydroamination to form nitrogen heterocycles in excellent yield.
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