New comprehensive two-dimensional gas chromatography with sulfur and mass selective detection setup- expanding analytical capabilities for detection of odor active sulfur compounds in food. [PDF]
Skef L, Asen D, Pantò S, Leitner E.
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Synergistic Flavor Modulation and Functional Enhancement of Douchiba via Compounding with <i>Bacillus subtilis</i>-Fermented Adlay. [PDF]
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The main skeleton aroma active compounds and sensory characteristics of Chinese geographical indication product: Shanxi aged vinegar. [PDF]
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Effects of Cooking Methods on the Flavor Characteristics of Volatiles of <i>Boletus edulis</i> Based on GC-IMS, E-Nose, and Sensory Evaluation. [PDF]
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Microbial metabolism of pyrazines
Critical Reviews in Microbiology, 2011Pyrazines are a group of 1,4 dinitrogen substituted benzenes. They have near ubiquitous biological distribution and majority are anthropogenic. The demand for pyrazines in the recent years has increased owing to their vast applications in the field of food, agriculture and medicine.
Ch Sasikala, Ramana Ch
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On the pyrazine and pyrazine–pyrimidine dimers
The Journal of Chemical Physics, 1986Spectra of the pyrazine-d4, pyrazine-h4–pyrazine-d4, and pyrazine-d4–pyrimidine dimer are obtained and analyzed with the help of Lennard-Jones–hydrogen-bonding (LJ–HB) potential energy calculations. The pyrazine isotopic hetero and homo dimers possess nearly identical spectra with the exception that the perpendicular dimer features are displaced to the
J. Wanna, E. R. Bernstein
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Pyrazine Analogues of Dipyrrolylquinoxalines
Organic Letters, 2003[structure: see text]. The synthesis of novel pyrazine derivatives bearing pyrrolic substituents is reported; the ability of these systems to bind certain biologically relevant anions in dichloromethane is also detailed.
Jonathan L, Sessler +3 more
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Of the various types of alerting signals found in nature, odours are the least well understood. The worldwide distribution of pyrazines in plants, insects, terrestrial vertebrates, marine organisms, fungi and bacteria suggests that they are of special significance.
A, Woolfson, M, Rothschild
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Vibrational spectra of [1H4]pyrazine and [2H4]pyrazine
Journal of the Chemical Society, Faraday Transactions 2, 1985Infrared and Raman spectra of [1H4]pyrazine and [2H4]pyrazine have been reinvestigated and a general assignment of all the observed bands is proposed which modifies some previous assignments of fundamental vibrations. The present assignment satisfies the isotopic product rule for i.r.- and Raman-active fundamentals.
Juan F. Arenas +4 more
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Synthesis of tetrasubstituted pyrazines and pyrazine N-oxides
Tetrahedron Letters, 2010Abstract An efficient synthesis of tetrasubstituted unsymmetrical pyrazines and their related pyrazine N-oxides has been developed from commercially available 2-chloro-3-methylpyrazine. The procedure and scope of these synthesis routes are described.
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