Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Sébastien Pionnier"'
Publikováno v:
European Journal of Lipid Science and Technology. 108:125-133
The origin of hydrogen in fatty acids produced in vivo by chicken was studied by using isotope tracing monitored by 2 H NMR. Chickens were fed with deuterium-labeled water, deuterium-labeled glucose/fructose and trideuterated acetate. The site-specif
Autor:
Ben-Li Zhang, Sébastien Pionnier
Publikováno v:
Chemistry - A European Journal. 9:3604-3610
In asymmetric reduction of carbonyl compounds mediated by microorganisms, the cofactors that transfer hydride should be regenerated by using a recycling system. In most cases, this recycling system consists of carbohydrate molecules, especially gluco
Publikováno v:
Journal of Agricultural and Food Chemistry. 51:2076-2082
In glucose fermentation, the hydrogen source of products such as ethanol and glycerol is the medium and the sugar. The site-specific natural isotope ratios of the products, (D/H)(i), and that of the medium and sugar, (D/H)(k), may be related by a mat
Autor:
Ben-Li Zhang, Isabelle Billault, Sébastien Pionnier, Jia-Rong Duan, Sébastien Guiet, Richard J. Robins
Publikováno v:
Phytochemistry Reviews. 2:87-102
During the biosynthesis of natural products, the intra-molecular distribution of isotopes is introduced as a result of different isotope effects associated with the reactions involved. Due to the sensitivity of certain enzymes to the presence of a he
Publikováno v:
The Journal of Physical Chemistry B. 106:2983-2988
This work presents a simple and easy steady-state distillation method for simultaneously determining the equilibrium isotopic fractionation factor a of different isotopomers of compounds at natural abundance in liquid-vapor phase transition. The meas
Autor:
Sébastien Pionnier, Ben‐Li Zhang
Publikováno v:
Journal of Physical Organic Chemistry. 14:239-246
A method for the determination of kinetic isotope effects (KIEs) in organic reactions using natural abundance deuterium NMR is proposed. The method consists of the determination of the site-specific H/D isotopic ratios of the starting reactant and th
Publikováno v:
Phytochemistry Reviews; Jan2003, Vol. 2 Issue 1/2, p87-102, 16p