Vol. 11, Issue 11 (2022)

Author(s):
Bochu Jeevan and M Mamatha

Abstract:
The Research work was conducted to investigate the phytochemical analysis and antimicrobial activity of methanolic extract of Red Tamarindus indica L fruit pulp on Rhizoctonia solani pathogen of Tectona grandis. The Methanolic tamarind fruit pulp extract was obtained using Soxhlet extraction method. The total number of compounds identified in methanol extract tamarind pulp was 10. The major phytoconstituents present in methanol extract of red Tamarindus indica L were Tannins, saponins, flavonoids, carbohydrates, reducing sugar, Glycosides, Alkaloides and proteins. Test for Anthraquinones and phytosterols was negative which indicates that they are absent in the methanolic extract of Tamarind pulp. Antimicrobial activity was carried out against the pathogen Rizoctonia solani which Identified from Tectona grandis infected leaves through morphological evidence. The results represented as the antimicrobial activity of the red tamarind extract against Rizoctonia solani at different concentrations at 25 %, 50 %, 75 %, 100 % and positive control referred as treatments T1, T2, T3, T4, and T5, the maximum zone of inhibition was observed at 100% i.e., T4 (14.333mm) which is more than the positive control T5 (fluconazole which is 13mm) fallowed by (11.333mm) at 75 % of T3, (7.667mm) at 50 % of T2, and minimum inhibition was at 25 % of T1 (5.000mm). Due to presence of phytochemicals this zone of inhibition may be resulted. A Minimum zone of 5.00mm was observed in Rhizoctonia solani at 25 % dose and maximum of 14.333mm zone at 100 % dose.