Simultaneous yeast–bacteria inoculum. A feasible solution for the management of oenological fermentation in red must with low nitrogen content

2012 ◽  
Vol 63 (2) ◽  
pp. 805-808 ◽  
Author(s):  
Raffaele Guzzon ◽  
Tomas Roman Villega ◽  
Michele Pedron ◽  
Mario Malacarne ◽  
Giorgio Nicolini ◽  
...  
2013 ◽  
Vol 864-867 ◽  
pp. 1626-1629
Author(s):  
Hai Bing Liu ◽  
Xiao Dong Chen ◽  
Jun Gu

The paper first discusses the relativity between alternative combustion andNOx emissions by a test in dry cement kiln, and a lot of case on fuel alternative The main findings of the study are that the use of RDF in cement kilns instead of coal or coke offers environmental benefits and reduce NOx emission. The conclusion is that the NOx generation can probably be lower because of lower flame temperatures or lower air excess and low nitrogen content in comparison with fossil fuels also is impartment reason., another a fact that most of the nitrogen (N) in biomass is released as ammonia (NH3) which acts as a reducing agent with NOx to form nitrogen (N2).


2014 ◽  
Vol 98 ◽  
pp. 193-201 ◽  
Author(s):  
G. Jeanmaire ◽  
M. Dehmas ◽  
A. Redjaïmia ◽  
S. Puech ◽  
G. Fribourg

2021 ◽  
Author(s):  
George Ngusale

The manuscript attempts to understand the evolution of NOx precursors: NH3 and HCN from Pyrolysis of furfural residue (FR). The pyrolysis process was carried out in a thermogravimetric analyzer (TGA) coupled to Fourier-transform infrared (FTIR) spectrometer. The combination revealed insightful information on the evolution of NH3 and HCN. This could help us better understand the characteristics of FR derived from furfural production especially with regard to NH3 and HCN. Nitrogen is considered a minor component in biomass wastes; in this study nitrogen content is about 0.57%. However, the pollution potential poised by low nitrogen content is huge through both direct and indirect processes. Thus, this study presents results that were found with regard to FR pyrolysis in pure nitrogen environment. At the heating rate of 40°C/min−1, the only NOx precursor detected was HCN at 713 cm−1 as per the database provided by National Institute of Standards and Technology (NIST). NH3 was not detected. The particle size of FR used ranged between 0.15–0.25 mm.


Analyses of the alimentary contents flowing to the duodenum of sheep during 24 h show that when the sheep are consuming a low-nitrogen diet more total nitrogen and amino nitrogen pass to the duodenum than are eaten daily in the food whereas when the sheep are eating high nitrogen diets, less total nitrogen and less amino nitrogen pass to the duodenum. The disparity between the total nitrogen and amino nitrogen content of the diets largely disappeared by the time the alimentary contents reached the terminal part of the ileum. From 64 to 68% of the nitrogen entering the duodenum and 54 to 64% of the nitrogen in the ileal contents was in the form of amino nitrogen. Proportionately more of the amino nitrogen was in solution in the ileal contents than in the duodenal contents. Losses of amino acids in the stomach when a high-nitrogen diet was consumed were especially large for glutamic acid, aspartic acid, proline, arginine and leucine. They were least for cystine and threonine. Gains of amino acids in the stomach when low nitrogen diets were consumed were all substantial except for proline, where a loss was found when hay and flaked maize were given. When these changes are considered as proportions of the quantities eaten then trends are similar for all acids. Changes in the molar proportions of the amino acids present in hydrolysates of the duodenal and ileal contents are discussed together with the significance of these changes in relation to the nutrition of the sheep.


1963 ◽  
Vol 46 (5) ◽  
pp. 825-829 ◽  
Author(s):  
P J Vax Soest

Abstract Anionic, cationic, and nonionic detergents in different buffering media were examined for their capacity to dissolve nitrogenous constituents in forage dry matter, in the interest of preparing fiber of a low nitrogen content. Of the combinations examined, cetyl trimethyl ammonium bromide in strongly acid solution and sodium lauryl sulfate in slightly alkaline solutions appeared most effective.


2012 ◽  
Vol 120 ◽  
pp. 13-18 ◽  
Author(s):  
Zhenyi Du ◽  
Michael Mohr ◽  
Xiaochen Ma ◽  
Yanling Cheng ◽  
Xiangyang Lin ◽  
...  

1951 ◽  
Vol 29 (5) ◽  
pp. 297-304 ◽  
Author(s):  
D. S. Smith ◽  
F. E. Northcott

Melanoplus mexicanus mexicanus (Sauss.), from time of hatching, was fed on wheat (Renown) grown in nutrient solutions of varying nitrogen content. Some wheat was produced with an average nitrogen content of 6.16% (dry weight), some with 4.29%, and some with 3.33%. Survival and development were greatest on the high nitrogen wheat, least on the low. On the low nitrogen wheat no individuals developed beyond the last nymphal instar. Neither weight of adults nor the sex ratio was affected by the various foods. Females fed on wheat with a high nitrogen content laid more eggs but the viability of the eggs was not affected.


2011 ◽  
Vol 311-313 ◽  
pp. 817-821 ◽  
Author(s):  
Yun Guan ◽  
Xian Zhong Zhang ◽  
Jia Yan Ma

The microstructure and precipitate of the two kinds of medium-carbon vanadium microalloyed steels whose nitrogen contents were 0.0035% and 0.012% respectively, were studied by image analysis and transmission electron microscope (TEM). The results show there are the large amount of 10~20nm dispersion distribution irregular flake VC precipitates within the ferrite, the part of clustered fibrous VC precipitates with the diameter of 4~13nm that grow toward to ferrite intracrystalline along the grain boundary with some angle in the local area, and only a very small amount of 20 ~ 50nm spherical particles V (C, N) in the low-nitrogen steel. However, in the high-nitrogen steel, the precipitates are divided into two stages: the first stage is the part of 30~80nm spherical particles V(C, N) which precipitation in austenite, the second stage is flakiness VC which precipitation in ferrite during the following γ → α phase transformation and cooling process. Compared with the low-nitrogen steel, the number of precipitates in decreased significantly and the size increased obviously in the high-nitrogen steel. The substantial increase of nitrogen content leads to the rapid increase of driving force that V (C, N) precipitation in austenite. A lot of V (C, N) that precipitation before phase transformation results in the significant increase of ferrite nucleation rate, which leads to the microstructure of high-nitrogen steel fined obviously.


1963 ◽  
Vol 205 (6) ◽  
pp. 1200-1202 ◽  
Author(s):  
Robert E. Priest

Consumption of oxygen in vitro by thoracic and abdominal aorta and of liver and kidney of rats was measured by direct Warburg manometry and related to the weight of tissue and to the content of nitrogen and of deoxyribonucleic acid (DNA). On the basis of numbers of cells present, as determined by the content of DNA, thoracic aorta respires at a rate one-fifth that of liver. Thoracic aorta respires more actively than abdominal aorta but also contains more nitrogen and more DNA per unit weight than abdominal aorta. The difference in consumption of oxygen between these two segments of aorta can be explained largely, although not entirely, on the basis of numbers of cells present. Because of the lesser content of nitrogen and DNA in abdominal aorta, it must contain larger amounts of some substance which contributes to weight and has a low nitrogen content.


1960 ◽  
Vol 40 (1) ◽  
pp. 139-145 ◽  
Author(s):  
P. M. Simmonds

A modified detached leaf method was used in studying infection reactions in wheat inoculated with Helminthosporium sativum. The invasion and colonization of one-half of a leaf produced variable degrees of chlorosis in the uninvaded half. Nitrogen was retained and accumulated in the colonized portion of the leaf which also retained its green colour. Leaching readily removed nitrogen from the affected tissues. Inoculation of the culms resulted in increased production of low nitrogen kernels. The influence of H. sativum colonization in relation to nitrogen nutrition and rootrot injury is discussed.


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