Arabian Journal of Chemistry· 2013
Effect of extraction methods on yield, phytochemical constituents and antioxidant activity of Withania somnifera
- 546citations
- 2013year
Short summary
Ultrasound and microwave-assisted solvent extraction of Withania somnifera roots yielded higher amounts of withanolides and phenolics, and showed greater antioxidant activity compared to conventional water extraction methods.
AI-generated from the title and abstract; the full text is not read.
Key points
- Ultrasound and microwave-assisted solvent extraction are effective "Green Extraction" techniques for Withania somnifera roots.
- These methods yielded higher extract amounts compared to conventional water extraction.
- Total phenol and withanolide content were significantly higher in extracts from green extraction methods.
- Antioxidant activity, measured by DPPH and ABTS assays, was also greater with green extraction techniques.
AI-generated from the title and abstract; the full text is not read.
Abstract
Withnaia somnifera (L.) is a wonder herb with multiple medicinal properties. Its root is used in the preparation of many Ayurvedic medicines. Withanolides, steroidal lactones, present in the root are active chemical markers, however, phenolics, and flavonoids have also been reported in the root of this plant. In most of the herbal preparations, water extraction is carried out using the infusion or decoction preparation process. In the present study, extract yield, phytochemical constituents such as total phenol and withanolide content of water and water-alcohol extracts prepared using two most commonly used extraction techniques, also known as “Green Extraction” techniques, ultrasound and microwave assisted solvent extraction were compared with the conventional extraction method. Antioxidant activity of the extracts was also determined using DPPH and ABTS methods of antioxidant assay. Extract yield, chemical composition of the extracts (total phenol and withanolide content) and antioxidant activity of the extracts varied with the extraction process as well as solvent composition.
The authors' abstract, as published at the source. Arabian Journal of Chemistry, 2013 · DOI ↗
Continue with a free account
Ask the paper: 3 free questions a day about this paper; save it, get its citation, new summaries every day for your field. Takeaways are Premium.
Continue free on the webSign in with Google or Apple; no card needed. You come back to this paper.
On your phone:
Field: Complementary and alternative medicine
Complementary and alternative medicineMedicine