usnic acid

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us·nic acid

An antibacterial substance, C18H16O7, obtained from lichens of several genera, including Usnea.
References in periodicals archive ?
They also referred to other case reports and case series of liver transplantation occurring in individuals who had taken the supplements usnic acid, Herbalife, Hydroxycut, linoleic acid, black cohosh, Chinese herbs, kava kava, skullcap, ma huang, or bai fang herb.
Except for usnic acid, no cytotoxic effects were observed for the two depsides (atranorin and perlatolic acid) and the alkyl depsidone (physodic acid).
Biological Activities of Toninia candida and Usnea barbata Together with Their Norstictic Acid and Usnic Acid Constituents.
It was once used to treat wounds as the usnic acid it contains has antibiotic properties; | Stereocaulon glareosum - a kind of coral lichen, it lives on bare toxic ground low in nutrients.
Usnic acid (2,6-diacetyl-7,9-dihydroxy-8,9bdimethyl-dibenzofuran-1,3[2H,9bH]-dione; [C.
By HPTLC and HPLC analyses were detected: placodiolic acid (major), atranorin (minor), usnic acid ([+ or -] trace, present only in BCRU 01063), haematommone (trace).
In late March, researchers found the high levels of usnic acid found in tumbleweed shield lichen (lichens are part fungus, part algae) was the cause of the deaths.
Usnic acid is effective against streptococcus, staphylococcus, and bacteria that causes pneumonia.
Some of the supplements in question include kava, usnic acid and bitter orange (citrus aurantium).
Three weeks into taking only half the recommended (dose, Rosenthal slipped into a coma, her liver apparently destroyed by usnic acid, an ingredient in the supplement.