Radicals in Ammonium Tartrate at 295 K by X-Radiation: Revised Radical Structures by EMR and DFT Analyses

2021 ◽  
Author(s):  
Einar Sagstuen ◽  
Veronika Kugler ◽  
Eli Olaug Hole ◽  
Anders Lund
Keyword(s):  
Ammonium Tartrate

Promotion of stipe elongation in isolated Flammulina velutipes fruit bodies by carbohydrates, natural extracts, and amino acids

1972 ◽  
Vol 50 (4) ◽  
pp. 803-818 ◽  
Author(s):  
Hans E. Gruen ◽  
Sheue-heng Wu
Keyword(s):  
Amino Acids ◽  
Growth Promotion ◽  
Casein Hydrolysate ◽  
Growth Period ◽  
Flammulina Velutipes ◽  
Ammonium Tartrate ◽  
Acid Growth ◽  
Natural Extracts ◽  
Stipe Elongation ◽  
Other Substances

Isolated Flammulina velutipes fruit bodies were cultured under sterile conditions with the cut base immersed in water or solutions. Stipe elongation on water was only 6% of normal for fruit bodies isolated at 1.1–2.0 cm length, 19% at 5.1–6.0 cm, and the same as for fruit bodies attached to mycelium at 9.1–10.0 cm. Fruit bodies not immersed in water grew less in a saturated atmosphere than those in water. The mycelium must supply other substances than water for normal elongation during about two-thirds of the growth period, and only water thereafter. Isolated fruit bodies fed with filtered glucose, trehalose, sucrose, or mannitol grew better than on water. Maltose and fructose increased elongation only slightly, and sorbose had no effect. Potato extract, yeast extract, and casein hydrolysate gave no or very little growth promotion, but addition of glucose strongly increased growth on the natural extracts compared to glucose alone. Of 21 amino acids added separately to glucose, only asparagine, hydroxyproline, arginine, and to a lesser extent glutamine, stimulated growth of isolated fruit bodies. Growth was not promoted by pure asparagine, glutamine, and serine, or by thiamin or indoleacetic acid. Growth was inhibited by urea, ammonium nitrate, and ammonium tartrate with or without glucose.Growth promoting substances were most effective in young fruit bodies and except for glucose the promotion disappeared in fruit bodies isolated at 6.1–7.0 cm length, which corresponds to the end of the period of rapid elongation. Apical portions of fruit bodies with caps grew better on glucose than whole fruit bodies. Growth of decapitated isolated stipes was not promoted by nutrients.

Ammonium Tartrate

2021 ◽  
Keyword(s):  
Ammonium Tartrate

Spin Concentration in a Possible ESR Dosimeter: An Electron Spin Echo Study on X-Irradiated Ammonium Tartrate

1999 ◽  
Vol 137 (2) ◽  
pp. 389-396 ◽  
Author(s):  
Marina Brustolon ◽  
Alfonso Zoleo ◽  
Anders Lund
Keyword(s):  
Electron Spin ◽  
Spin Echo ◽  
Electron Spin Echo ◽  
Ammonium Tartrate ◽  
Spin Concentration

scholarly journals Effect of cold rolling on anodizing of aluminum in a 3mass%ammonium tartrate solution.

1992 ◽  
Vol 42 (1) ◽  
pp. 33-37
Author(s):  
Nobuo KOBAYASHI ◽  
Hiroyuki ICHINOSE
Keyword(s):  
Cold Rolling ◽  
Ammonium Tartrate

scholarly journals The enantioselective β-keto ester reductions by Saccharomyces cerevisiae

2006 ◽  
Vol 71 (8-9) ◽  
pp. 889-894 ◽  
Author(s):  
Nosrat Mahmoodi ◽  
Hassan Tajik ◽  
Khalil Tabatabaeian ◽  
Mahmood Shahbazi
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Calcium Phosphate ◽  
Potassium Dihydrogen Phosphate ◽  
Dihydrogen Phosphate ◽  
Ammonium Tartrate ◽  
Potassium Dihydrogen ◽  
Keto Ester ◽  
Keto Esters ◽  
Diammonium Salt ◽  
Hydroxy Esters

The enantioselective yeast reduction of aromatic ?-keto esters, by use of potassium dihydrogen phosphate, calcium phosphate (monobasic), magnesium sulfate and ammonium tartrate (diammonium salt) (10:1:1:50) in water at pH7 as a buffer for 72-120h with 45-90 % conversion to the corresponding aromatic ?-hydroxy esters was achieved by means of Saccharomyces cerevisiae.

scholarly journals Influence of N-limitation on Malic Enzyme Isoforms and Lipogenesis of Cunninghamella bainieri 2A1

2014 ◽  
Vol 67 (1) ◽  
Author(s):  
Aidil Abdul Hamid ◽  
Shuwahida Shuib ◽  
Ekhlass M. Taha ◽  
Othman Omar ◽  
Mohd Sahaid Khalil ◽  
...  
Keyword(s):  
Lipid Content ◽  
Lipid Accumulation ◽  
Malic Enzyme ◽  
Lipid Synthesis ◽  
Lower Activity ◽  
Ammonium Tartrate ◽  
Ammonium Ions ◽  
Activity Staining ◽  
N Limitation ◽  
Enzyme Isoforms

The influence of the presence of ammonium ions in growth culture on malic enzyme (ME) isoforms activity and lipogenesis in Cunninghamella bainieri 2A1 was investigated. The fungus was cultivated in a nitrogen-limiting medium for 120 h at 30oC under two conditions. One of the cultures was intermittently fed with ammonium tartrate to maintain the ammonium concentrations above 0.5 g/L. The second culture was performed without any feeding to allow N limitation, thus promoting lipid accumulation. Activity staining of ME isoforms was carried out for both cultures. The culture which was not intermittently fed with ammonium tartrate achieved a maximum lipid content of 35% (g/g biomass) at 48 h. This culture possessed five ME isoforms (A, B, C, D and E) with isoform E showing a parallel correlation to lipid accumulation profile. In contrast, intensity of bands representing isoform D decreased as lipid accumulated. No appreciable differences of all other isoforms were observed. However, the culture which was intermittently fed with ammonium tartrate, accumulated only up to 16% lipid (g/g biomass). All isoforms were present but with a more pronounced activity of isoform D and a lower activity of isoform E was observed. These findings support further evidence that isoform E is the key isoform for lipid synthesis in C. bainieri 2A1.

Spontaneous Shear Strain of Lithium Ammonium Tartrate Monohydrate (LAT)

1978 ◽  
Vol 44 (5) ◽  
pp. 1751-1752 ◽  
Author(s):  
Hikaru Terauchi ◽  
Hisataka Takenaka ◽  
Nobuo Matsumori ◽  
Akitatsu Sawada
Keyword(s):  
Shear Strain ◽  
Ammonium Tartrate

Magnetic susceptibility of ammonium hydrogen tartrate and ammonium tartrate

1992 ◽  
Vol 11 (14) ◽  
pp. 1007-1008 ◽  
Author(s):  
M. M. Abdel-Kader
Keyword(s):  
Magnetic Susceptibility ◽  
Ammonium Tartrate ◽  
Ammonium Hydrogen

scholarly journals Transition Metal Oxide Tubes Synthesized by Using Ammonium Tartrate Crystal Template.

2001 ◽  
Vol 109 (1275) ◽  
pp. 924-928 ◽  
Author(s):  
Fumiaki MIYAJI ◽  
Yoshimitsu TATEMATSU ◽  
Yoko SUYAMA
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Transition Metal Oxide ◽  
Ammonium Tartrate

EPR and optical study of Mn2+ doped ammonium tartrate single crystals

2008 ◽  
Vol 71 (4) ◽  
pp. 1302-1306 ◽  
Author(s):  
Ram Kripal ◽  
Har Govind ◽  
Manisha Bajpai ◽  
Manju Maurya
Keyword(s):  
Single Crystals ◽  
Ammonium Tartrate ◽  
Optical Study
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