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Journal of Chemistry
Volume 2013 (2013), Article ID 951951, 8 pages
Research Article

Bhanupaka: A Green Process in the Preparation of an Indian Ayurvedic Medicine, Lauha Bhasma

1School of Chemical & Biotechnology, SASTRA University, Thanjavur , Tamil Nadu 613 401, India
2Centre for Advanced Research in Indian System of Medicine, SASTRA University, Thanjavur, Tamil Nadu 613 401, India
3Centre for Nanotechnology & Advanced Biomaterials, SASTRA University, Thanjavur, Tamil Nadu 613 401, India

Received 30 June 2012; Revised 21 December 2012; Accepted 22 December 2012

Academic Editor: Lorenzo Cerretani

Copyright © 2013 Balaji Krishnamachary et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The use of lauha bhasma, a traditional Indian herbometallic preparation, is in vogue for centuries for the treatment of various ailments related to iron deficiency. The preparation of lauha bhasma requires strict adherence to time-consuming, well-practiced, multistage, and multistep procedures. One of the steps is the treatment of purified metallic ingredients with Triphala decoction (the aqueous extract of Indian gooseberry, Chebulic myrobalans, and Beleric myrobalans) in the presence of sunlight (Bhanupaka). The formation of metal complexes due to the reaction of the metallic ingredients with the constituents of Triphala decoction has been ascertained by FTIR spectroscopy and carbon, hydrogen, and nitrogen analyses. Our results demonstrate that Bhanupaka is an essential step in the preparation of lauha bhasma.