Photolysis of amino acids in sunlight in presence of the photosensitizer titanium dioxide

1953 ◽  
Vol 40 (16) ◽  
pp. 440-441 ◽  
Author(s):  
K. V. Giri ◽  
G. D. Kalyankar ◽  
C. S. Vaidyanathan
Keyword(s):  
Amino Acids ◽  
Titanium Dioxide

scholarly journals The Complex Compound of Amino Acids With Titanium (III) as a Method to Control and Synthesis of Different Structures of TiO2 Nanoparticles; Usage as Photocatalysts to Oxidize Alcohols to Aldehyde

2021 ◽  
Author(s):  
Yahya Absalan ◽  
Nazanin Noroozi Shad ◽  
Mostafa Gholizadeh
Keyword(s):  
Amino Acids ◽  
Titanium Dioxide ◽  
Uv Light ◽  
Chemical Analyses ◽  
Benzyl Alcohols ◽  
Titanium Dioxide Nanoparticle ◽  
Physical Chemical ◽  
Nitrobenzyl Alcohol ◽  
Different Types ◽  
Full Investigation

Abstract Different types of the amino acids (Glutamine, Glycine, Alanine) were used to coordinate TiCl3 in order to investigating the best precursor for synthesis of TiO2. Also, a full investigation was carried out to synthesis four different structures of TiO2 nanoparticles [TiO2 (A0.8R0.2), TiO2 (A0.6R0.4), TiO2 (Anatase), and TiO2 (Rutile)]. Oxidation of derivatives alcohol to their corresponding aldehyde through the obtained nanoparticles, as a photocatalyst, under UV light was considered to investigate the best structure of TiO2. Different physical-chemical analyses were applied to investigate the result. The result showed that the titanium dioxide nanoparticle, synthesized from glycine was obtained at the least temperature and was chosen as a precursor to synthesis of four different types of TiO2. All the synthesized TiO2 were applied for oxidation of benzyl alcohols into benzaldehyde, as a test, and TiO2 (A0.6R0.4) could give the best result (87% efficiency). Then it was used to oxidize benzyl alcohol, 4-cholorobenzyl alcohol, 4-nitrobenzyl alcohol and 4-methoxybenzyl alcohol to their corresponding aldehyde and efficiency were 74, 92, 87, and 65% respectively.

scholarly journals Ag(I)/TiO2-Photocatalyzed N-Methylation of Amino Acids with Methanol

2020 ◽  
Author(s):  
Yuna Morioka ◽  
Ivven Huang ◽  
Susumu Saito ◽  
Hiroshi Naka
Keyword(s):  
Amino Acids ◽  
Titanium Dioxide ◽  
Uv Light ◽  
Optical Purity

<div><div><div><p>Silver(I)-loaded titanium dioxide (AgNO3/TiO2) catalyzes the direct N-methylation of amino acids with methanol under irradiation with UV light. This method produces a variety of N-methyl and N,N-dimethyl amino acids with retention of their optical purity.</p></div></div></div>

Electrosynthesis of amino acids from biomass-derivable acids on titanium dioxide

2019 ◽  
Vol 55 (98) ◽  
pp. 14721-14724 ◽  
Author(s):  
Takashi Fukushima ◽  
Miho Yamauchi
Keyword(s):  
Amino Acids ◽  
Titanium Dioxide ◽  
Keto Acids ◽  
Earth Abundant

Amino acids were electrochemically synthesized from biomass-derivable α-keto acids and water with high faradaic efficiencies using safe and earth-abundant TiO2.

The effect of the 1B/1R translocation and endosperm texture on amino acid digestibility in near-isogenic lines of wheat for broilers

2000 ◽  
Vol 134 (1) ◽  
pp. 69-76 ◽  
Author(s):  
F. J. SHORT ◽  
J. WISEMAN ◽  
K. N. BOORMAN
Keyword(s):  
Amino Acids ◽  
Titanium Dioxide ◽  
Amino Acid ◽  
Apparent Digestibility ◽  
Near Isogenic Lines ◽  
Acid Digestion ◽  
Isogenic Lines ◽  
Titanium Dioxide Content ◽  
Endosperm Texture ◽  
Vitamin Mixture

Four near-isogenic lines of wheat were employed to compare the effects of endosperm texture (hard v. soft) and the presence or absence of the 1B/1R translocation on amino acid digestion as determined with young broilers. Wheat samples were incorporated into diets at rates of inclusion of 250, 500 and 750 g/kg, with wheat as the only protein source. Diets included a mineral/vitamin mixture (50 g), oil (50 g) and were made up to 1000 g with a 50[ratio ]50 starch[ratio ]glucose mixture. Titanium dioxide was included at 5 g/kg as an inert marker. Each of the 12 diets was fed to 6 pairs of growing male (Ross) chickens for 3 days. Samples of ileal digesta were obtained from the birds following slaughter at 21 or 22 days of age and analysed for amino acid and titanium dioxide content. True and apparent digestibility coefficients were determined by regressing the amount of dietary apparently digestible amino acid in the diet against the rate of wheat inclusion and extrapolating the response to 1000 g and 0 g wheat/kg. The ordinate intercept was assumed to represent endogenous losses. Both the presence of the translocation and hard endosperm texture were associated with decreases in the apparent digestibility of amino acids, although the latter characteristic was not as important. As examples, for methionine the translocation was associated with a decrease in the coefficient of digestibility from 0·872 to 0·802 and a change in endosperm texture from soft to hard was associated with a decrease from 0·845 to 0·829.

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