Vijaya Lakshmi

Paliperidone is a BCS-II drug. It means paliperidone is poorly water soluble and hence shows problem in absorption as well as permeation through GIT which together contributes for its lower oral bioavailability. Paliperidone as drug, oil oleic acid, surfactant labrasol and co surfactant labrafil m 1944 were taken and formulation were done. From the emulsification time study as the concentration of Smix increases emulsification time decreases. Further emulsification time study I found that F3 has the lowest emulsification time. From the dissolution study it was observed that Q30 is above 85% obtained for formulation F3 and F6 that is 93.75 & 91.25. This can be due to the higher concentration of Smix present in formulation F3 & F6 since mean cumulative % drug release at 30min (Q30) is highest for F3 formulation and it was selected for optimized formulation. As in the DSC study thecrystalline property of Paliperidone is lost and it becomes amorphous. In the FT-IR study there is no significance sifting of characteristic peak. Hence there is no incompatibility between drug and excipient.   Keywords: Paliperidone, Labrafil, Emulsification time, Formulation

The present study was aimed to develop and validate a simple, accurate, precise, reproducible UV-Visible spectrophotometric method and FTIR for the estimation of Ibuprofen present in extract. The solvent used in the experiment was m. Absorption maximum (?max) of the drug was found to be 264 nm. The Beer’s law was obeyed in the range of 100-500 ?g/ml. The method was shown linear in the mentioned concentrations having line equation y = 0.000023x with correlation coefficient r of 1 The amount of ibuprofen present in the extract was found to be 7 ug/ml. The recovery values for ibuprofen present in Bougainvillea Campanulata flowers extract ranged from 85.9%-87.6%. The percent relative standard deviation (RSD %) of interday precision was 51.35 % and intraday precision was 42.95 %. The limit of detection and limit of quantification was 0.9 ?g/mL and 2.7 ?g/mL. The percent relative standard deviation of robustness of the method was 37.43-45.86. Hence, proposed method was precise, accurate and cost effective. This method could be applicable for quantitative determination of the methanol present in Bougainvillea flowers extract. Keywords: Bougainvillea Campanulata flowers, UV Spectrophotometer, FTIR, TLC and methanol

A simple, rapid, and sensitive fluorimetric method was developed and validated to quantify quassia in polymeric nanocapsule suspensions and non polymeric suspensions, using acetonitrile as a solvent. The excitation and emission wavelengths were set at 397 nm and 465 nm, respectively. The calibration graph was linear from 0.05 to 0.25 µg/mL with a correlation coefficient of 0.9892. The detection and quantitation limits were 2.4 and 0.8 µg/mL, respectively. The validation results confirmed that the developed method is specific, linear, accurate, and precise for its intended use. The current method was successfully applied to the evaluation of curcumin content in lipid and polymeric nanocapsule suspensions during the early stage of formulation development. Keywords: Quassia, Fluorimetric method, Polymeric nanocapsules, suspension

Sweet corn fibres of about 15 gm were extracted with methanol for 5 hours in heating mantle at 40C and filtered and allowed to dry. The dried gel was further analyzed for estimation of Retinyl palmitate by spectrophotometrically by laboratory method and found to be 140 mg/kg. The dried extract gel was further estimated for ascorbic acid both by UV and HPTLC and found to be linear in the range of 1-5 ug/ml and 5-10ug/ml, correlation coefficient was found to be 0.997 and 0.998 and the amount of ascorbic acid was found to be 338 ng/ml and 9.9 ng/ml by UV and HPTLC respectively. The method was found to be linear.   Keywords: Sweet corn fibres, Retinyl Palmitate, Ascorbic acid, UV, HPTLC

Lip balm was prepared and its antioxidant activity was determined by PFRAP, CUPRAC, Flourimetry methods and results of emission spectra was examined and fournd to possess almost same concentration of 0.3 ug/ml. And the ascorbic acid was determined by HPTLC method and the Rvalue of the lip balm was found to be 0.98 and is near to the abscorbic acid sample. And hence proved that beetroot lip balm was found to possess antioxidant activityThe anti oxidant activity was determined and was found to be simple, novel and economical.   Keywords: Antioxidants; PFRAP, CUPRAC, Flourimetry and HPTLC