http://nopr.niscpr.res.in/handle/123456789/35100 Sat, 10 Oct 2026 02:36:17 GMT 2026-10-10T02:36:17Z http://nopr.niscpr.res.in/handle/123456789/35125 Title: A forecast of research octane number of FCC gasoline with changing weight hour space velocity Authors: Zhang, Hongmei; You, Hongjun Abstract: Research Octane Number (RON) of FCC gasoline has been studied using Lanlian FCC gasoline and Lanlian aromatization products as feedstocks and LBO-A as catalyst, and research octane number have been put forward with changing weight hour space velocity (WHSV). The mathematical model forecasts research octane number of modified FCC gasoline with changing weight hour space velocity. The results from experimental data are in accordance with the quantitative analytical conclusions drawn from the calculated data. Page(s): 323-325 Fri, 01 Jul 2016 00:00:00 GMT http://nopr.niscpr.res.in/handle/123456789/35125 2016-07-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/35124 Title: Ultraviolet-visible spectrophotometric method for estimation of the glibenclamide in presence of liposomal/proliposomal turbidity Authors: Prasad, Neelkant; Issarani, Roshan; Nagori, Badri Prakash; Singh, Jitendra Kumar Abstract: A simple and sensitive ultraviolet spectrophotometric method for quantitative estimation of glibenclamide in presence of lipid turbidity has been developed, to avoid false estimation due to diffraction by turbidity. UV detection has been performed at 232 nm, 227 nm and 237 nm and the calibration curve is plotted between resultant of absorbance of [232 nm – (227 nm + 237 nm)/2] and concentration of analyte. The calibration curve is found to be linear over the concentration range tested (2-20 µg/mL) with Limit of Detection of 0.27 μg/mL and Limits of Quantification 0.82 μg/mL. Percent relative standard deviations and percent relative mean error, representing precision and accuracy respectively, for clear as well as turbid solutions are found to be within acceptable limits i.e. always less than 0.69 and 0.41 respectively for clear solution and 0.65 and 0.47 respectively for turbid solution. The recovery studies are also found to be within acceptable limits (100.10 to 101.21%) for both types of solutions. Conclusively, our method is successfully applied for the determination of glibenclamide in clear as well as turbid solution and it is found that the drug analyte in both types of solutions can be detected from the same calibration curve accurately and precisely and glibenclamide entrapped in the liposomes or in proliposomal matrix is not detected. Page(s): 318-322 Fri, 01 Jul 2016 00:00:00 GMT http://nopr.niscpr.res.in/handle/123456789/35124 2016-07-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/35123 Title: Partial purification and immobilization of laccase isolated from medicinal mushroom (Ganoderma lucidum) Authors: Chaudhary, Reeti; Hooda, Sonia; Beniwal, Seema; Sindhu, Anil Abstract: Ganoderma lucidum, a white rot fungus is used as a source for laccase isolation. The production of laccase has been carried out using by submerged fermentation and the crude enzyme obtained showed activity of 0.42 µg/mL/min. Laccase is partially purified using ammonium sulphate precipitation which showed activity of 0.71 µg/mL/min and it was further purified by DEAE cellulose chromatography with an activity of 0.95 µg/mL/min. Partially purified laccase is immobilized by covalent attachment onto a polyvinyl alcohol (PVA) membrane with retention of 65.71% of initial activity of the enzyme. After immobilization the optimum pH of the enzyme increases from 4.5 to 5.0 and temperature for maximum activity increases from 45ºC to 55ºC. The immobilized enzyme show its maximum activity at 10 mM of guaiacol concentration which is more than that of free enzyme (8 mM). Compared with the free enzyme, the immobilized enzymes display a higher activity and affinity, also improved thermal and operational stabilities. Finally, covalently immobilized laccase on PVA has been found to exhibit significant advantages such as reusability, economic benefits, and the cheap support, all these interesting properties, show the suitability of these biocatalysts for industrial applications. Page(s): 313-317 Fri, 01 Jul 2016 00:00:00 GMT http://nopr.niscpr.res.in/handle/123456789/35123 2016-07-01T00:00:00Z http://nopr.niscpr.res.in/handle/123456789/35122 Title: Preparation of Ibuprofen chitosan/montmorillonite microspheres by ionic cross-linking under microwave irradiation Authors: Liu, Xuegui; Gao, Yixing; Huang, Mingyuan; Gao, Pinyi; Zhang, Lixin; Zhang, Zhenxue Abstract: Ibuprofen chitosan (CS) /montmorillonite (MMT) microspheres have been produced by an ion cross-linking technique under microwave irradiation. The morphology and mechanical strength of the microspheres are significantly improved due to the use of chitosan as a drug carrier. Also, in comparison with other cross linker reagents, the effect of adsorption can be increased by the use of a small amount of sodium pyrophosphate. Furthermore, an orthogonal design method has been applied in order to obtain the optimal conditions for microsphere production, and the results are as follows: the reaction temperature is 60°C, the amount of montmorillonite added is 13%, the amount of ibuprofen added is 10%, the mole ratio of cation to anion is 50:1, and the entrapment efficiency is 49.70%. The structure, mechanical strength and characteristic infrared peaks of the microspheres have been examined by scanning electron microscopy (SEM), thermogravimetric analysis (TG) and Fourier transform infrared spectroscopy (FTIR), respectively. Page(s): 308-312 Fri, 01 Jul 2016 00:00:00 GMT http://nopr.niscpr.res.in/handle/123456789/35122 2016-07-01T00:00:00Z