Nitrogen recycling

One further problem remains. Most of the n-butane impurity which enters with the feed enters the vapor phase in the first separator. Thus the n-butane builds up in the recycle unless a purge is provided (see Fig. 4.13a). Finally, the possibility of a nitrogen recycle should be considered to minimize the use of fresh nitrogen (see Fig. 4.136). 

Richards, P. 1972 Nutritional potential of nitrogen recycling in man. American Journal ofClinical Nutrition 25 615-625. 

Alternative crops Biofortification Diversification Decreases erosion Increases biodiversity Increases yield Increases soil nitrogen Recycles nutrients Pest control Plant disease control (2009) Deguine et al. (2009) Dordas (2009) Etchevers et al. (2009) Kalinova (2009) Knorzer et al. (2009) Malezieux et al. (2009) Palaniappan et al. (2009) Spiertz (2009) Zuo and Zhang (2009)... 

Both a synthetic lignin model substrate and the natural metabolites of the white-rot fungus were oxidized by this extracellular peroxidase. The possible roles of this nitrogen recycling system and the cinnamate pathway, which are involved in the secondary metabolism of L-phenylalanine in brown-rot and white-rot fungi, are discussed in relation to wood decay processes. 

Whitledge, T. E. (1981). Nitrogen recycling and biological populations in upweUing ecosystems. In Coastal UpweUing. (Richards, F. A., ed.). American Geophysical Union, pp. 257-274. 

Wang, J. T., and Douglas, A. E. (1999). Essential amino acid synthesis and nitrogen recycling in an alga-invertebrate symbios. Mar. Biol. 135, 219—222. 

Sano Y., TakahataN., Nishio Y., and Marty B. (1998) Nitrogen recycling in subduction zones. Geophys. Res. Lett. 25, 2289-2292. 

Nitrogen recycle, H2 recycle at 1500 psi with reciprocating expanders, o-p catalyst APACHI... 

Joule-Thomson in 1500 psi H, nitrogen recycle, o-p catalyst chromic oxide on alumina in LH2 bath... 

For needed context, while this has been a very well-studied process - largely in bacteria — this topic is also mentioned as it pertains to the overall regulation of Phe (1)/Tyr (2) biosynthesis in planta. It is evident that regulation needs to be comprehensively understood simultaneously from the perspective of product feedback control, transcription, and translation, in order to obtain a comprehensive understanding of the processes involved. In addition, how these biochemical processes interface in cross talk with downstream phenylpropa-noid metabolism/nitrogen recycling also requires urgent resolution. 

Billen, G. (1978). A budget of nitrogen recycling in North Sea sediments off the Belgian coast. Estuarine Coastal Mar. Sci. 7, 127-146. 

Carrying out the reaction in the presence of diluent gases such as nitrogen, recycle gases, or the hydrogen halide that is liberated. 

A packaged refrigeration unit is used to extract additional heat from the nitrogen stream and it reenters the plate-fin exchanger to be further cooled against the nitrogen recycle streams. 

The nitrogen feed stream is split and part enters a second plate-fin exchanger to be cooled further against the nitrogen recycle streams. The other part is sent to a turboexpander to be cooled by expansion in the... 

TN is the total quanta of nitrogen in sediments, which can be considered as the maximum amount of nitrogen taking part in nitrogen recycling. Accordingly, the TN can be a superior measurement for primary production. For Jiaozhou Bay sediments, TN in different core sediments (D4, D7, and B3) had similar distribution patterns but the distributions were diverse and complicated. The average concentrations of TN for three core sediments were 0.323 (B3)>0.217 (D4)>0.213 mg/g (D7). Moreover, both D4 and D7 had similar distribution patterns and close concentrations. 

Allopurinol may exert An additional effect in reducing purine degradation by gut bacteria. This effect on nitrogen recycling has yet to be evaluated. 

Bergen WG, Wu G. Intestinal nitrogen recycling and utilization in health and disease. / Nutr. 2009 139 821-825. 

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