UNLABELLED Cocoa beans were alkalized before or after roasting and made into cocoa liquor before analyzing by SIFT-MS. In both alkalized-before-roasting and alkalized-after-roasting samples, there were significantly higher concentrations of alkylpyrazines for the samples with pH above 7 than pH below 7. At pH 8, the concentrations of 2,3-, 2,5-, and 2,6-dimethylpyrazine (DMP), 2,3,5-trimethylpy...

The aim of this study was to increase the baked flavour low-acrylamide potato products. Strecker aldehydes and pyrazines make an important contribution products are formed alongside acrylamide in Maillard reaction. However, reaction can be directed favour aroma formation by selecting appropriate precursors intermediates based on fundamental chemistry involved. Selected were added dough prior ba...

The amino acids synthesis from elementary precursors in abiotic conditions is traditionally described according to the Strecker reaction, thoroughly invoked justify observation of extraterrestrial samples and their emergence primordial Earth. To this day, however, a quantitative microscopic description mechanism, thermodynamics, kinetics multistep reaction still lacking. In present work we tack...

Uncommon reversible guest-induced metal-hemilabile linker bond dynamics in MOF MFM-300(Sc) was unraveled to switch on/switch off catalytic open metal sites. The activity of this with non-permanent sites demonstrated using a model Strecker hydrocyanation reaction as proof-of-concept. Conclusively, the evidenced be fully reversible, preserving conversion performance and structure integrity over m...

Combined thermodynamic/kinetic events amount to a kinetically controlled Dynamic Combinatorial Resolution (DCR) process, where the lability of the molecules/aggregates are used to generate dynamics, and the species experiencing the lowest activation energy is selected via kinetic process. Both interand intramolecular processes can be performed using this concept, resulting in complete resolutio...