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    Petasites japonicus F. Schmidt
    Petasites japonicus, also known as Fuki, bog rhubarb, or giant butterbur, is an herbaceous perennial plant in the family Asteraceae. It is native to Japan, where the spring growth is relished as a vegetable. It has also been introduced to southern British Columbia by Japanese immigrants.
    The traditional preparation method for this vegetable involves pre-treating with ash or baking soda and soaking in water to remove harshness, which is a technique known as Aku-nuki. A new phenolic compound, petasiphenone, was isolated from the dried rhizomes ofPetasites japonicus together with the known phenolic compound, peta.
    Like other Petasites species, fuki contains pyrrolizidine alkaloids which have been associated with cumulative damage to the liver and tumor formation. The concentration of potentially hepatotoxic pyrrolizidine alkaloids are below the detection limits in modern butterbur extracts.
    Petasites japonicus F. Schmidt
    Research products of Petasites japonicus F. Schmidt
    Catalog Product Name CAS Number Manual
    CFN98579Bakkenolide A19906-72-0  PDF
    CFN98913Lupeol545-47-1  PDF
    CFN99916Beta-Sitosterol83-46-5  PDF
    CFN98838Kaempferol520-18-3  PDF
    CFN975683,4-Dihydroxybenzoic acid99-50-3  PDF
    CFN99272Quercetin117-39-5  PDF
    CFN99190Caffeic acid331-39-5  PDF
    CFN99116Chlorogenic acid327-97-9  PDF
    CFN90795Bakkenolide D18456-03-6  n/a
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