scholarly journals Hydrolysis of diphosphate ion to orthophosphate ion and formation of hydroxyapatite in the aqueous phase.

1982 ◽  
Vol 30 (11) ◽  
pp. 3872-3881 ◽  
Author(s):  
SABURO SHIMABAYASHI ◽  
TOSHITAKA AOYAMA ◽  
MASAYUKI NAKAGAKI
Keyword(s):  
Aqueous Phase ◽  
Hydrolysis Of

scholarly journals Effects of Temperature and pH on Hydrolysis of Monoacetoacetin in an Aqueous Phase

1992 ◽  
Vol 112 (9) ◽  
pp. 669-672
Author(s):  
Saburo SHIMABAYASHI ◽  
Chikako HARADA
Keyword(s):  
Aqueous Phase ◽  
Effects Of Temperature ◽  
Hydrolysis Of

Decomposition of Lecithin in Parenteral Fat Emulsions

1956 ◽  
Vol 186 (3) ◽  
pp. 397-402 ◽  
Author(s):  
G. Frederick Lambert ◽  
Jonathan P. Miller ◽  
Douglas V. Frost
Keyword(s):  
Fatty Acids ◽  
Aqueous Solutions ◽  
Aqueous Phase ◽  
Myristic Acid ◽  
Room Temperature ◽  
Clinical Use ◽  
Clear Indication ◽  
Fat Emulsions ◽  
Egg Lecithin ◽  
Hydrolysis Of

Aqueous solutions of alcohol-soluble phosphatide, synthetic lecithin and purified egg lecithin develop hemolytic and other toxic properties over a period of time at ordinary room temperature, or at an increased rate at 40°C. The toxicity of emulsions made with phosphatide as a stabilizer also increases with time. The evidence suggests that hydrolysis of synthetic lecithin proceeds first to give a hemolytic product, presumably lysolecithin. When liberation of both fatty acids from l-alpha-dimyristoyl lecithin was complete and the myristic acid was removed, no toxicity was shown by the aqueous phase, presumably glyceryl phosphorylcholine. Attempts to decrease the hydrolysis of lecithin solutions did not succeed. Although the use of lecithin phosphatide preparations as emulsifiers for intravenous fat may have limitations as to time and temperature of storage, there is no clear indication from these studies that any real hazard is involved from the standpoint of clinical use.

Synthesis of ZnO Nanoparticle and its Application in Catalytic Hydrolysis of p-Acetoxynitrobenzene

2017 ◽  
Vol 16 (04) ◽  
pp. 1750005 ◽  
Author(s):  
Avnish Kumar Arora ◽  
Pankaj Kumar ◽  
Sanjeev Kumar
Keyword(s):  
Aqueous Phase ◽  
Magnetic Measurements ◽  
Low Cost ◽  
Bet Surface Area ◽  
Precipitation Method ◽  
Effect Of Temperature ◽  
Zno Nanoparticle ◽  
Catalytic Hydrolysis ◽  
Zno Nps ◽  
Hydrolysis Of

Synthesis of ZnO nanoparticle and the hydrolysis of p-Acetoxynitrobenzene to p-Nitrophenol (p-NP) under aqueous phase conditions in the presence of ZnO nanoparticle has been carried out. Zinc oxide (ZnO) nanoparticles (NPs) are prepared by using simple precipitation method. Ammonia is used as a precipitating agent and ZnCl[Formula: see text]H2O as a starting material. The obtained ZnO NPs are characterized by using different techniques namely XRD, TGA/DTA, TEM, FT-IR, magnetic measurements and BET surface area analysis. ZnO NPs are evaluated for their catalytic properties in hydrolysis of p-Acetoxynitrobenzene to p-Nitrophenol (p-NP) under aqueous phase conditions. The effect of temperature and concentration has also been studied for the catalytic hydrolysis. This is to emphasize that the method used to synthesize these NPs is much simple and fiscal. The obtained ZnO NPs work as a good catalyst for the above conversion and are of low cost and easy to synthesize.

scholarly journals Enhanced Enzymatic Hydrolysis of Corncob by Synthesized Enzyme-Mimetic Magnetic Solid Acid Pretreatment in an Aqueous Phase

ACS Omega ◽  
2019 ◽  
Vol 4 (18) ◽  
pp. 17864-17873 ◽  
Author(s):  
Qing Xu ◽  
Wei Yang ◽  
Guifeng Liu ◽  
Cuiyi Liang ◽  
Si Lu ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Aqueous Phase ◽  
Solid Acid ◽  
Acid Pretreatment ◽  
Enzyme Mimetic ◽  
Magnetic Solid ◽  
Magnetic Solid Acid ◽  
Hydrolysis Of

Degradation of Post-consumer PLA: Hydrolysis of Polymeric Matrix and Oligomers Stabilization in Aqueous Phase

2018 ◽  
Vol 26 (12) ◽  
pp. 4396-4404 ◽  
Author(s):  
Annesini Maria Cristina ◽  
Frattari Sara ◽  
Gironi Fausto ◽  
Piemonte Vincenzo ◽  
Sabia Rocchina ◽  
...  
Keyword(s):  
Aqueous Phase ◽  
Polymeric Matrix ◽  
Hydrolysis Of

scholarly journals Ab initio dynamics of gas‐phase and aqueous‐phase hydrolysis of adenosine triphosphate

2021 ◽  
Vol 121 (10) ◽  
Author(s):  
Raghav Saxena ◽  
V B K Sai Phani Kumar Avanigadda ◽  
Raghvendra Singh ◽  
Vishal Agarwal
Keyword(s):  
Ab Initio ◽  
Gas Phase ◽  
Adenosine Triphosphate ◽  
Aqueous Phase ◽  
Hydrolysis Of

scholarly journals Ab-initio dynamics of Gas-phase and Aqueous-phase Hydrolysis of Adenosine Triphosphate

2020 ◽  
Author(s):  
Raghav Saxena ◽  
Phani Kumar Avanigadda ◽  
Raghvendra Singh ◽  
Vishal Agarwal
Keyword(s):  
Ab Initio ◽  
Gas Phase ◽  
Adenosine Triphosphate ◽  
Aqueous Phase ◽  
Hydrolysis Of

Production of furans from hemicellulosic saccharides in biphasic reaction systems

Holzforschung ◽  
2013 ◽  
Vol 67 (8) ◽  
pp. 923-929 ◽  
Author(s):  
Sandra Rivas ◽  
María Jesús González-Muñoz ◽  
Valentín Santos ◽  
Juan Carlos Parajó
Keyword(s):  
Aqueous Phase ◽  
Methyl Isobutyl Ketone ◽  
Empirical Modeling ◽  
Isobutyl Ketone ◽  
Reaction Systems ◽  
Conversion Rates ◽  
Operational Variables ◽  
Biphasic Reaction ◽  
Phase Temperature ◽  
Hydrolysis Of

Abstract Furans (furfural and hydroxymethylfurfural) are the results of dehydration of monosaccharides, which can be obtained by acid hydrolysis of wood or other lignocellulosic materials. In this work, Pinus pinaster wood was subjected to aqueous autohydrolysis processing to obtain dissolved hemicellulose-derived polymeric or oligomeric saccharides made up of mannosyl, glucosyl, galactosyl, xylosyl, and arabinosyl structural units. The aqueous liquors were then heated in the presence of sulfuric acid and methyl isobutyl ketone to obtain furans. The effects of selected operational variables, such as the ratio of organic to aqueous phase, temperature, and reaction time, were assessed by empirical modeling in terms of the conversion into furans and levulinic acid. The maximum furfural conversion (71.4%) was predicted to occur operating at 165°C and a ratio of organic to aqueous phase of 2 for 68.5 min. In additional experiments, dimethyl sulfoxide and/or 1-butanol were added to the aqueous phase and the change in furan conversion rates was observed.

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