from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A diazine in which the two nitrogen atoms are in the para- positions; many of its derivatives are pharmaceuticals.
from the GNU version of the Collaborative International Dictionary of English
- A feebly basic solid, C4H4N2, obtained by distilling piperazine with zinc dust, and in other ways. Also, by extension, any of various derivatives of the same.
Sorry, no etymologies found.
Her contribution was a paper about the effects of a chemical called pyrazine and how its odour stimulates the memory of day-old chicks.
A paper that Dame Miriam wrote subsequently revealed that if one subjects chickens to pyrazine, they lay larger eggs.
Click 'show compounds' in the right-hand nav and you should see compounds like pyrazine/uridine highlighted in the text.
Peas are unusual among legumes in retaining some green chlorophyll in their dry cotyledons; their characteristic flavor comes from a compound related to the aroma compound in green peppers a methoxy-isobutyl pyrazine.
The raw seed has a green, bean-like flavor mainly from green-leaf hexanal and the pyrazine that characterizes peas.
It is sometimes a little sweet, with a slight but characteristic bitterness, and has a mild earthy flavor from a compound a pyrazine produced by soil microbes, but also apparently within the tuber itself.
Heating causes a change in the flavor of soy sauce due to nonenzymic browning reactions, which could result in the production of pyrazine compounds.
T-705: A substituted pyrazine compound that is active against neuraminidase-inhibitor-resistant and amantadine-resistant viruses and that probably inhibits the RNA polymerase
I am not a chemist by trade, but isn’t it the minty flavors in wine comes from the same chemical compounds (pyrazine) that also produces peppery flavors.
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