Browsing by Author "Gupta, Rishikesh"

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    Preliminary phytochemical screening of bark (powder) extracts of Ficus religiosa (peepal) plant
    (Society for research and Development in Education, 2020-09) Tiwari, Priya; Gupta, Rishikesh
    The traditional medicine involves the use of various different plant extracts or the bioactive constituents. The study such as ethno medicine keenly r presents the best avenues in searching new economic plants for medicine. This type of study gives the health application at affordable cost. The present study carried out to find out the phytochemical constituents in the Ficus religiosa bark. The Ficus religiosa was collected from the Rama University Campus. The shadow dried bark materials were grained and extracted with petroleum ether, chloroform, methanol and ethanol: water (50: 50). Photochemical analysis was carried out according to standard procedures. The bark powder was successively extracted ith Phytochemical screening shows the presence of carbohydrate, glycoside, alk loid, protein, amino acid, phytosterol, tannin & flavonoids. The result of the study could be useful for description and phytochemical analysis of the plant.
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    Statistical medium optimization of an alkaline protease from Pseudomonas aeruginosa MTCC 10501, its characterization and application in leather processing.
    (2013-04) Boopathy, Naidu Ramachandra; Indhuja, Devadas; Srinivasan, Krishnan; Uthirappan, Mani; Gupta, Rishikesh; Ramudu, Kamini Numbi; Chellan, Rose
    Proteases are shown to have greener mode of application in leather processing for dehairing of goat skins and cow hides. Production of protease by submerged fermentation with potent activity is reported using a new isolate P. aeruginosa MTCC 10501. The production parameters were optimized by statistical methods such as Plackett-Burman and response surface methodology. The optimized production medium contained (g/L); tryptone, 2.5; yeast extract, 3.0; skim milk 30.0; dextrose 1.0; inoculum concentration 4%: initial pH 6.0; incubation temperature 30 °C and optimum production at 48 h with protease activity of 7.6 U/mL. The protease had the following characteristics: pH optima, 9.0; temperature optima 50 °C; pH stability between 5.0-10.0 and temperature stability between 10-40 °C. The protease was observed to have high potential for dehairing of goat skins in the pre- tanning process comparable to that of the chemical process as evidenced by histology. The method offers cleaner processing using enzyme only instead of toxic chemicals in the pre-tanning process of leather manufacture.