Journal of the science of food and agriculture, 90(15), 2563-2567 (2010-08-26)
Theanine, a unique amino acid found almost exclusively in tea plants, has various favourable physiological and pharmacological functions in humans. Gamma-glutamyltranspeptidase (GGT, EC 2.3.2.2) is considered to be the most effective enzyme for the production of theanine. In fact, GGT
Journal of chromatography. A, 1216(15), 3280-3289 (2009-03-10)
Complementary methods using liquid chromatography-tandem quadrupole mass spectrometry (LC-MS/MS) and comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GCxGC-TOF-MS) were developed and applied to determine targeted metabolites involved in central carbon metabolism [including tricarboxylic acid cycle, serine cycle, ethylmalonyl-coenzyme A (ethylmalonyl-CoA) pathway
The synthesis of a phosphonated acyclic bifunctional chelate L* for the labeling of biomaterial is described. L* is based on a pyridine backbone, functionalized in ortho positions by aminomethyl-bis-methylphosphonic acids, and, in the para position, by a side chain containing
The journal of physical chemistry. A, 113(2), 399-410 (2008-12-23)
Neutral serotonin-(H(2)O)(n) clusters with n = 1,2 have been studied under jet-cooled conditions using a combination of resonant two-photon ionization (R2PI), UV-UV hole-burning (UVHB), and resonant ion-dip infrared (RIDIR) spectroscopy. Serotonin (5-hydroxytryptamine, SERO) is a close analogue of tryptamine, differing
A new multi-channel purge and trap system coupled with ion chromatography for the determination of six alkylamines in cosmetics was developed. The proposed method, based on purge and trap of the volatile alkylamines, involved in a miniaturization and multi-channel integration
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