Ethno-medicinal uses and screening of plants for antibacterial activity from Similipal Biosphere Reserve, Odisha, India

Ethnopharamcological relevanceThe present study examined the variety and the extent of medicinal plants used in the health care system of tribal inhabitants of Similipal Biosphere Reserve. In addition to this, such plants were also screened for antibacterial properties against common pathogenic bacteria.Material and methodsSemi-structured interview was carried out with 42 informants (mean age 42, 86% male, 14% female) at 24 locations in and around SBR, regarding the use of plants for the treatment of various human ailments. Antibacterial screening is adopted with the documented ethnomedicinal plants using methanol and aqueous extracts against eight bacterial strains.ResultsA total of 187 plant species belonging to 74 families were documented for frequent medicinal uses against common ailments such as stomach problems, fever, skin diseases, diarrhea and dysentery. Although all parts of plant are used, leaves and bark are most common. Tribals used the plant parts both in form of decoction (taken orally as in internal problems) and paste (external use). Out of 187 plant species, 120 plants recorded antibacterial activity against test bacterial strain.ConclusionsThis study revealed that self care using medicinal plants is a common practice by the tribes of SBR. About 64% of the used plants have scientifically proved medicinal values with respect to the antibacterial properties.

Plants used for several ailments by the tribal of Similipal Biosphere Reserve and periphery, based on the field oriented exploration carried out in the year 2006-2009.141