scholarly journals Structure of DL-normetanephrine hydrochloride [α-(aminomethyl)vanillyl alcohol hydrochloride], C9H14NO3+.Cl−: erratum

Author(s):  
R. R. Pattanayek ◽  
J. K. Dattagupta ◽  
S. C. Bhattacharyya ◽  
N. N. Saha
Keyword(s):  
1998 ◽  
Vol 46 (2) ◽  
pp. 657-663 ◽  
Author(s):  
Philip J. Spillman ◽  
Alan P. Pollnitz ◽  
Dimitra Liacopoulos ◽  
Kevin H. Pardon ◽  
Mark A. Sefton

2010 ◽  
Vol 29 (2_suppl) ◽  
pp. 3S-14S ◽  
Author(s):  
Bruce K. Bernard ◽  
Kazuyuki Ubukata ◽  
Ryuichi Mihara ◽  
Yoshiaki Sato ◽  
Hiroyuki Nemoto

Pharmacokinetics of a single gavage dose of 14C-labeled dihydrocapsiate (10 mg/kg) were investigated in male rats. Maximal plasma concentration was achieved in 40 minutes and exhibited an apparent half-life of 2.4 hours. Excretion of radioactivity in the urine, feces, and expired air was 78.2%, 19.4%, and 0.5% of the dose, respectively. Highest tissue concentrations were achieved in the kidney, liver, and blood; the data indicate that radioactivity accumulation following daily exposure at a dose of 10 mg/kg body weight is unlikely. Radioactivity in the plasma was associated with metabolites and their conjugates, probably vanillyl alcohol, vanillic acid, glucuronide of vanillyl alcohol, sulphate of vanillyl alcohol, and sulphate of vanillic acid. These results suggest dihydrocapsiate is metabolized by hydrolysis in the gut, or esterase or other enzymes in the blood, and the metabolites were rapidly absorbed and converted to their conjugates in the liver and eliminated by the kidneys into the urine.


2018 ◽  
Vol 360 (12) ◽  
pp. 2370-2376 ◽  
Author(s):  
Tom A. Ewing ◽  
Jasmin Kühn ◽  
Silvia Segarra ◽  
Marta Tortajada ◽  
Ralf Zuhse ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1183 ◽  
Author(s):  
Marco Aldo Ortenzi ◽  
Stefano Gazzotti ◽  
Begonya Marcos ◽  
Stefano Antenucci ◽  
Stefano Camazzola ◽  
...  

Polylactide (PLA)-based polymers, functionalized with biobased antioxidants, were synthesized, to develop an intrinsically active, biobased and potentially biodegradable material for food packaging applications. To achieve this result, phenolic antioxidants were exploited as initiators in the ring opening polymerization of l-lactide. The molecular weight, thermal properties and in vitro radical scavenging activity of the polymers obtained were compared with the ones of a PLA Natureworks 4043D, commonly used for flexible food packaging applications. The most promising synthesized polymer, bearing vanillyl alcohol as initiator (PLA-VA), was evaluated for active food packaging applications. Packaging with PLA-VA films reduced color and fat oxidation of salami during its shelf life.


2007 ◽  
Vol 30 (13) ◽  
pp. 2130-2137 ◽  
Author(s):  
Eng Shi Ong ◽  
Ming Yuan Heng ◽  
Swee Ngin Tan ◽  
Jean Wan Hong Yong ◽  
Huijing Koh ◽  
...  

1998 ◽  
Vol 253 (3) ◽  
pp. 712-719 ◽  
Author(s):  
Marco W. Fraaije ◽  
Robert H. H. van den Heuvel ◽  
Jules C. A. A. Roelofs ◽  
Willem J. H. van Berkel

2020 ◽  
Vol 355 ◽  
pp. 280-285 ◽  
Author(s):  
Le Yang ◽  
Rui Ma ◽  
Hui Zeng ◽  
Zebao Rui ◽  
Yongdan Li

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2645
Author(s):  
Aratz Genua ◽  
Sarah Montes ◽  
Itxaso Azcune ◽  
Alaitz Rekondo ◽  
Samuel Malburet ◽  
...  

Epoxy resins are widely used in the composite industry due to their dimensional stability, chemical resistance, and thermo-mechanical properties. However, these thermoset resins have important drawbacks. (i) The vast majority of epoxy matrices are based on non-renewable fossil-derived materials, and (ii) the highly cross-linked molecular architecture hinders their reprocessing, repairing, and recycling. In this paper, those two aspects are addressed by combining novel biobased epoxy monomers derived from renewable resources and dynamic crosslinks. Vanillin (lignin) and phloroglucinol (sugar bioconversion) precursors have been used to develop bi- and tri-functional epoxy monomers, diglycidyl ether of vanillyl alcohol (DGEVA) and phloroglucinol triepoxy (PHTE) respectively. Additionally, reversible covalent bonds have been incorporated in the network by using an aromatic disulfide-based diamine hardener. Four epoxy matrices with different ratios of epoxy monomers (DGEVA/PHTE wt%: 100/0, 60/40, 40/60, and 0/100) were developed and fully characterized in terms of thermal and mechanical properties. We demonstrate that their performances are comparable to those of commonly used fossil fuel-based epoxy thermosets with additional advanced reprocessing functionalities.


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