Isolation of Onopordopicrin, the Toxic Constituent of Arctium lappa L
نویسندگان
چکیده
منابع مشابه
Safety of 8-weeks oral administration of Arctium lappa L.
Recently, worldwide dietary reference intakes have been considered an important guideline for public health. Some governments and the World Health Organization (WHO) provide guidelines concerning dietary intake. Although an ingredient may have a history of use as a culinary material, changes in the environment over time suggest that the acceptable maximum intake each of food/culinary material s...
متن کاملArctigenin: a lignan from Arctium lappa
The title compound {systematic name: (3R-trans)-4-[(3,4-dimethoxy-phen-yl)meth-yl]-3-[(4-hydr-oxy-3-methoxy-phen-yl)meth-yl]-4,5-dihydrofuran-2(3H)-one}, C(21)H(24)O(6), has a dibenz-yl-butyrolactone skeleton. The two aromatic rings are inclined at a dihedral angle of 68.75 (7)° with respect to each other. The lactone ring adopts an envelope conformation. A series of O-H⋯O and C-H⋯O hydrogen bo...
متن کاملThe Essential oil Composition of Arctium lappa Root and Leaf
Using plants and natural products as medicine is increasing every day. The reason might be a tendency that the societies mostly have toward natural and original products especially natural drugs. Essential oilsare referred to aromatic composition which is found in different parts of a plant and can be used for different remedial and hygienic purposes. One of the plants which have been used a lo...
متن کاملAnti-allergic and anti-inflammatory effects of butanol extract from Arctium Lappa L
BACKGROUND Atopic dermatitis is a chronic, allergic inflammatory skin disease that is accompanied by markedly increased levels of inflammatory cells, including eosinophils, mast cells, and T cells. Arctium lappa L. is a traditional medicine in Asia. This study examined whether a butanol extract of A. lappa (ALBE) had previously unreported anti-allergic or anti-inflammatory effects. METHODS Th...
متن کاملA Novel Fructan Possessing DB Value from Roots of Arctium lappa L
A fructan named ALF was isolated from the roots of Arctium lappa L.. The structure of ALF was identified by analyses of methylation, GC-MS, and both 1 H and 13 C NMR spectroscopy. The results obtained indicated that ALF, comprised of D-fructose and D-glucose in the molar ratio of 14:1, was an inulin-type fructan, which was confirmed by the composition of 14 fructose residues linked by (2 1) gly...
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ژورنال
عنوان ژورنال: Journal Of The Brazilian Chemical Society
سال: 1993
ISSN: 0103-5053
DOI: 10.5935/0103-5053.19930040