Physicochemical and Sensory Properties of Traditionally and Laboratory Made Ghee (Samin) of the Sudan
Samin is traditional cooking o il produced using the butter made fro m the milk of sheep , cow or goats.The objectives of the study was the determination of the physical, chemical and sensory characteristics of samin samp les collected fro m local market, preparation of Samin at the laboratory level and evaluation its quality. The mo isture content, acid value (mgKOH/g) , free fatty acids and peroxide value ranged 0.03 ±0.05% - 0.34+0.05%, 0.56 ± 0.0, - 1.94±0.17 (mgKOH/g), 0.28, -0.97±0.09%, 9.93 ± 0.23 - 2.60 ± 0.40 (mEq/kg) in the various samin samp les. However, the saponification value, density, viscosity, melt ing point and refract ive index of the different samin samples ranged 165.50-172.23(mgKOH/g), 0.925-913 g/cm³,0.519×10−3-0.335×10−3±0.02 pa.s, 38-37 Ċ and 1.4600-1.4582, respectively. The sensory evaluation revealed there was no-significant difference in texture, color, and overall acceptability of the samples, but there was significant difference (p ≤ 0.05) in flavour, between LM S sample and the other samples. It is highly reco mmended to imp rove production of samin under controlled hygienic conditions.
Characterization of Thermal Fraction of Clarified Butter and its Applicability to Improve Bioavailability of Rosuvastatin
Aim: The present investigation shows confirmatory evidence for the complex formation of Rosuvastatin with a fraction of Clarified Butter. Materials and Methods: Fractions of Clarified Butter prepared according to thermal behavior at different temperatures (30°C, 40°C, 50°C). Rosuvastatin biform complex with Clarified Butter in the ratio (1:1) and (1:2) w/w were prepared. Physicochemical properties of all fractions of Clarified Butter was determined as per Indian Pharmacopoeia. The fractions were subject to Fouriertransform Infrared spectroscopy (FTIR), Differential Scanning Calorimeters (DSC) and invitro release studies (Simulated gastric fluid, pH 1.2 for 2 h and simulated intestinal fluid, pH 6.8 for 6 h). Results: Based on these investigations; the optimized ratio (1:1) w/w were further characterized for DSC and FTIR studies. Where Rosuvastatin exhibited a strong carbonyl band at 1543.05 cm, all fractions showed the disappearance of strong carbonyl band at 1543.05 cm−1, spectra of biform complex shifted to higher frequency 1747.51 cm−1 (13.29 % increase), that confirmed carboxylic and hydroxyl group of both saturated and unsaturated fatty acid present in Clarified Butter. From in vitro release study the highest percent release i.e. 99.23±0.08% of Rosuvastatin was obtained from 1:1 biform complex. DSC thermogram revealed the formation of eutectic mixture by lowering the peak of pure Clarified Butter (67.4°C) to 58.10°C due to the formation of biform complex. Conclusion: Thus, Clarified Butter and its fraction illustrated enhanced bioavailability of Rosuvastatin.
Effect of particle size and drying temperature on drying rate and oil extracted yields of Buccholzia coriacea (MVAN) and Butyrospermum parkii ENGL
Summary The effect of particle size and drying temperature on drying rate and oil extracted yields of Buccholzia coriacea (MVAN) and Butyrospermum parkii (ENGL) was investigated. Air drying studies carried out on B. coriacea and B. parkii, tropical food sources subject to high post-harvest losses, have resulted in the establishment of a significant difference between oil yields extracted from samples of various particle size pretreatments (paste, 4 mm, 8 mm and whole kernels) dried at 45 and 60 � C with the highest oil yield given by the 4 mm thick slices dried at 45 � C. The influence of temperature and particle thickness on the drying rate has been evaluated. The drying constants were found to depend on both temperature and particle thickness. Analysis of the oil extracted from the 4 mm thick slices dried at 45 � C showed that apart from the acid value (52.4%), the saponification (181.2 mg g )1 KOH), peroxide (8.6 meq kg )1 ) and the unsaponifiable (7.43%) matter values of the extracted shea butter remain within the limits cited in the literature while a close analysis of the cake suggests that it could be a good mineral source.