Allicin
Allicin is an organosulfur compound obtained from garlic, a species in the family Alliaceae. It was first isolated and studied in the laboratory by Chester J. Cavallito and John Hays Bailey in 1944. When fresh garlic is chopped or crushed, the enzyme alliinase converts alliin into allicin, which is responsible for the aroma of fresh garlic. The allicin generated is very unstable and quickly changes into a series of other sulfur containing compounds such as diallyl disulfide. It exhibits antibacterial, antifungal, antiviral, and antiprotozoal activity. Allicin is garlic's defense mechanism against attacks by pests.
Structure and occurrence
Allicin features the thiosulfinate functional group, R-S(O)-S-R. The compound is not present in garlic unless tissue damage occurs, and is formed by the action of the enzyme alliinase on alliin. Allicin is chiral but occurs naturally only as a racemate. The racemic form can also be generated by oxidation of diallyl disulfide:
Alliinase is irreversibly deactivated below pH 3; as such, allicin is generally not produced in the body from the consumption of fresh or powdered garlic. Furthermore, allicin can be unstable, breaking down within 16 h at 23 °C.
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by Alesana
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by Alesana
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by Alesana
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by Alesana
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by Alesana
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by Alesana
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by Alesana
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by Alesana
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by Alesana
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by Alesana
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by Alesana
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Allison
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Illusion
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by Alazzan
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by Alazzan
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by Alazzan
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by Alazzan
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by Alazzan
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by Alazzan
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by Alcione
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by Alcione
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by Alcione
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by Alcione
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by Alcione
And They Call This Tragedy
by: AlesanaYou make me sick
I'll tear out those diamond eyes I can't bear to see
Crimson spills on paper skin
They call this tragedy
Remembering the nights when you'd whisper to me soft, "forever more my heart is yours"
Realize those words have died
As the life fades from your eyes
All that I can say is it may not be too late
Try again, make it perfect, make me worth it
Or else die for all I care
If I can not be loved then none shall be
Think of this as I softly kiss your blood glazed lips once more
On this night this thing you call love dies
Your face disgusts me, smile and bear your lies
This broken trust will become your demise
As the life fades from your eyes
All that I can say is it may not be too late
Try again, make it perfect, make me worth it
Or else die for all I care
After today silence will haunt you
Expect no forgiveness for your life will end tonight
Now I grit my teeth and finish what I know must be done
To kill the memory of you... and you said this would be forever
As the life fades from your eyes
All that I can say is it may not be too late
Try again, make it perfect, make me worth it