Putrescine
Putrescine, or tetramethylenediamine, is a foul-smelling organic chemical compound NH2(CH2)4NH2 (1,4-diaminobutane or butanediamine) that is related to cadaverine; both are produced by the breakdown of amino acids in living and dead organisms and both are toxic in large doses. The two compounds are largely responsible for the foul odor of putrefying flesh, but also contribute to the odor of such processes as bad breath and bacterial vaginosis. They are also found in semen and some microalgae, together with related molecules like spermine and spermidine.
History
Putrescine and cadaverine were first described in 1885 by the Berlin physician Ludwig Brieger (1849–1919).
Production
Putrescine is produced on an industrial scale by hydrogenation of succinonitrile, which is produced by addition of hydrogen cyanide to acrylonitrile. Putrescine is reacted with adipic acid to yield the polyamide Nylon 46, which is marketed by DSM under the trade name Stanyl. Biotechnological production of putrescine from renewable feedstock is a promising alternative to the chemical synthesis. A metabolically engineered strain of Escherichia coli that produces putrescine at high titer in glucose mineral salts medium has been described.
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by Arson
Beauty
by: Arsontime of decadence and time of despair, spaces
between us and voids filling her, turning into piles of
hatred and fear, she settled the score and now she is
here, facing Him: “take those pictures down, fill the
walls behind with living colors, drown them in light.
for i’m ready now, my heart’s broken now, my
shoulders are weary, my mind‘s numb!” hasting
towards her -, straight love opens hearts, people
called into life, fellowship in light; moving folks of
night, is what He yearns to do. with those cold walls
torn into pieces instead of painting them nice and
warm; He just loves to see you can handle liberty and
she understands love is really free: “got my fever down,
feet back on the ground, blind eyes open to see. this
grace’s larger than our life can be, standing tall on my
knees.” free – let’s shout to the world, this liberty is
life’s gift to the cold! free - we shout to the world:
“these bleeding hands are for you!