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Can I read Antioxidant activity and components of Salvia plebeia R.Br. — a Chinese herb on EtoBox?
Antioxidant activity and components of Salvia plebeia R.Br. — a Chinese herb by Liwei Gu; Xinchu Weng is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Antioxidant activity and components of Salvia plebeia R.Br. — a Chinese herb about?
The antioxidant properties of the extracts from Salvia plebeia R.Br. which was screened out of over 700 species of Chinese herbs, were tested in lard at 110 C using the Oxidative Stability Instrument. The ethyl acetate extract of the herb was re-extracted by solvents (with increasing polarity) into petroleum ether-, diethyl ether-, acetone-and-ethanol-soluble fractions. The fractions obtained were then separated according to their acidic properties. From the most active sub-fractions, namely the acidic sub-fraction of the petroleum ether-soluble fraction and the weakly acidic sub-fraction of the diethyl ether-soluble fraction, three antioxidant components were isolated and identi®ed as royleanonic acid, hispidulin and eupatorin. The royleanonic acid was a novel compound and eupatorin was isolated for the ®rst time from the herb. Though royleanonic acid and hispidulin prolonged the induction period signi®cantly, their antioxidant activities were much weaker than the crude extracts, implying that synergistic eects might be responsible for the high activity of the crude extracts.
Who reads Antioxidant activity and components of Salvia plebeia R.Br. — a Chinese herb?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- Liwei Gu; Xinchu Weng
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0308-8146)
- Published
- 2001
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)