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Acta Pol Pharm. 2012 May-Jun;69(3):475-85.

Comparison of conventional and non conventional methods of extraction of heartwood of Pterocarpus marsupium Roxb.

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1
Department of Pharmacy, S.D.M. College of Pharmacy, Rajound-136044, Kaithal, Haryana, India. manishdevgun@gmail.com

Abstract

The renewed interest in plant-derived drugs has led to an increased need for efficient extraction methods. The present investigation was an attempt to evaluate and compare the conventional methods of extraction with non conventional methods of extraction, such as ultrasonic-assisted extraction (UAE) and microwave-assisted extraction (MAE) methods. Pterocarpus marsupium Roxb. has been reported to contain bioactive phytochemicals, e.g., pterostilbene (3',5'-dimethoxy-4-stilbenol). The results showed that among the conventional extraction methods, percolation gave the highest yield. The non conventional methods were optimized. The extraction yield was the highest in case of MAE. The phytochemical screening of the extracts indicated similar groups of compounds in all the extracts. The thin layer chromatography showed the presence of pterostilbene in the extracts obtained by using percolation, MAE and UAE. In these extracts the quantification of pterostilbene was conducted by high performance liquid chromatography and the method was validated. The MAE method extracted significantly higher amount of pterostilbene.

PMID:
22594262
[Indexed for MEDLINE]
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