Phytochemical and antioxidant characterization of Hypericum perforatum alcoholic extracts
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چکیده
منابع مشابه
Phytochemical and antioxidant characterization of Hypericum perforatum alcoholic extracts
The antioxidant potentials of a total ethanolic extract of Hypericum perforatum (TE) and fractions were evaluated and correlated with their phenolic contents. The extracts were fully characterised by HPLC–DAD–MS–MS. Kaempferol 3-rutinoside and rutinacetyl were identified for the first time in TE extracts. The free radical-scavenging properties of TE (EC50 1⁄4 21 lg dwb/ml) and fractions were st...
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The aerial parts of H. perforatum subsp. perforatum and H. perforatum subsp. angustifolium were investigated for their chemical composition and antimicrobial activity. Spectrophotometric analysis indicated that H. perforatum subsp. perforatum is richer in flavonoids and tannins than the other subspecies. HPLC analysis confirmed the higher yield of flavonoids in H. perforatum subsp. perforatum a...
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Hypericum perforatum (HP), better known as St. John's Wort, has been used clinically for centuries. Modern usage is still quite diverse and includes kidney and lung ailments, insomnia and depression. Standardised extracts of HP are widely used in the treatment of psychovegetative disorders and especially for mild forms of depression. Several bioactive constituents of this plant may play importa...
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ژورنال
عنوان ژورنال: Food Chemistry
سال: 2005
ISSN: 0308-8146
DOI: 10.1016/j.foodchem.2004.03.049