Abstract
Abstract Antimicrobial fabric is increasingly used, and could eventually be required, in garments that are in direct contact with the human body, an environment that is ideal for microbial growth. Forest species such as Cassia fistula, Pongamia pinnata, Tectona grandis, and Jatropha curcas represent major groups of antimicrobial agents, which consist of active phytochemical constituents and can be used as antimicrobial agents for applying special finishes on textiles. In the present study, qualitative and quantitative screening of leaf extracts of forest species was carried out. Leaf extracts of C. fistula, P. pinnata, T. grandis, and J. curcas were prepared using solvents, viz., ethanol (70%), methanol (70%), choloroform, and deionized water. Extracts were determined for the presence of phytochemicals. Results of phytochemical screening revealed the presence of alkaloids, flavonoids, and tannins in all the leaf extracts of selected forest species. However, the saponins were absent in P. pinnata and J. curcas leaf extracts, and terpenoids were absent only in P. pinnata extracts. Further, the total phenolic content (TPC) was evaluated using the Folin-Ciocalteu assay method, whereas total flavonoid content (TFC) was analyzed using the colorimetric method. Methanolic extracts of T. grandis, P. pinnata, and C. fistula exhibited the highest TPC and TFC in the increasing order 143.74, 161.53, and 228.08 mg, and 126.21, 148.33, and 179.1 mg, respectively, while J. curcas exhibited high amounts of TPC and TFC content in ethanolic extract. We therefore conclude that extracts from forest species such as C. fistula, P. pinnata, T. grandis, and J. curcas can be used for applying eco-friendly and healthy finishes to textile substrates.
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