Papers |
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83 |
Botanicals: Quality and regulatory
issues |
Use of indigenous drugs from plant origin forms a major part of complementary therapies. Increased demand of medicinal plants and related products is an opportunity sector for Indian trade and commerce. Widespread and growing use of botanicals has created public health challenges globally in terms of quality, safety and efficacy. This review discusses various regulatory issues related to quality of botanicals. |
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93 |
Fungus - An alternative for
bioremediation of heavy metal containing wastewater: A review |
The common filamentous fungi can sorb heavy metals (Zn, Cd, Pb, Fe, Ni, Ag, Th, Ra & U) from aqueous solutions to varying extents. Fungal biosorption largely depends on pH, metal ion and biomass concentration, physical or chemical pretreatment of biomass, and presence of various legends in solution. When compared with commercial ion exchange resins, carbons and metal oxides, fungal derivatives generally perform well. The availability of variety of biomass and their metal binding potential makes it a economical and sustainable option for developing effluent treatment process for removal and recovery of heavy metals. IPC Code: C 02 F 1/62V |
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101
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Estimation of the essential inorganic
constituents of commercial toothpastes |
Commercial toothpastes, randomly sampled from the open market were analyzed for fluoride, phosphate, calcium, sodium, potassium, magnesium, moisture content and pH. The pH of the toothpastes ranged from 4-8, with 60% of them having a neutral pH. The levels of constituents depend on the method of solubilization of toothpaste, with concentrated nitric acid digestion giving the best results. The concentrations were: fluoride, 1.0-1.55; phosphate, 3-20; calcium, 0.04-1.26; sodium, 12-38; potassium, 0.01-0.99; and magnesium, 0.1-2.3 mg/g. The health implications for tooth care and of assimilation of the elements during the mouth cleansing process, especially when present at unacceptable levels, was discussed.
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108 |
Fibre Bragg grating writing using phase
mask technology |
Fibre Bragg gratings (FBGs) are novel components of communication and sensors. The technique commonly employed for production of FBGs involves exposure of photosensitive germanosilicate fibre cores to intense excimer laser radiation through an optical phase mask located in close proximity of the fibre. FBGs were written using this technique in two different fibre samples and their strain and temperature sensing characteristics were investigated. The paper describes the techniques used for fabrication and their characteristic studies. IPC Code: G 01 N 21/27
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116 |
Blending effect of synthetic fiber on
paper properties |
Scarcity in forest-based raw materials has forced the paper industries to use inferior quality pulp produced from agricultural residues for papermaking. To improve the properties of the pulp, blending of good quality long fiber pulp is necessary. Synthetic polyester fibers may be used to replace the long fiber component in the furnish. Addition of short cut polyester staple fibers in different proportions to bagasse and wheat straw pulp has shown significant improvement in mechanical properties of paper produced from these pulps. IPC Code: D 21 H 19/28 |
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119 |
Elements in scalp hair and nails
indicating metal body burden in polluted environment |
Heavy metals in hair and nails taken at random were examined in subjects occupationally or otherwise exposed to Pb, Cd, Cu, Mn, Zn, Fe, Ni, Ca, Mg and Cr metals and in controls from subjects working in different environments such as tooth powder manufacturing unit, lead battery unit, locomotive workshop, welding unit and roadways workshop. The Pearson Moment Correlation analysis of the data for these ten elements revealed significant positive correlation between Cr/Ni, Fe/Mn, Fe/Cr and Ni/Fe in hair of exposed subjects; Cr/Pb, Mn/Cd, Zn/Cd, Zn/Mn, Ni/Pb, Fe/Pb, Cr/Ni, Cr/Fe and Fe/Ni in hair of unexposed subjects; Cr/Cd, Ca/Cd, Ca/Mn, Ca/Cr, Ni/Cd, Ni/Mn, Ni/Cr,Ni/Ca,Fe/Cr and Ni/Fe in nails of exposed subjects and Cu/Cd, Cr/Cd, Cr/Cu, Zn/Cd, Zn/Cu, Zn/Cr, Ca/Cd, Ca/Cu, Ca/Cr, Ca/Zn, Mg/Cd, Mg/Cu, Mg/Cr, Mg/Ca, Ni/Cd, Ni/Cu, Ni/Cr, Ni/Ca, Ni/Mg/, Ni/Zn, Fe/Cr, Fe/Ni and Fe/Cd in nails of unexposed subjects. IPC Code: G 01 N 1/40
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125 |
Effect of transition metal ions on the
metabolism of Aspergillus niger in the production of citric acid
with molasses as substrate |
A two-stage process for the treatment of molasses was employed. Early germination with rapid multiplication of the microbe was observed. The nutritional quality of the medium was enriched by the addition of certain transition metal ions (Cr, Fe, Co, Ni, Cu, Mo, Cd and Pb), of which Ni was found to serve as a good nutritional supplement. Batch fermentations by surface culture were carried out and the possible mechanism for the metabolic changes taking place in Aspergillus niger during the production of citric acid is discussed. Using nickel, as high as 269 mg/ml of citric acid was produced. IPC Code: C 12 P 1/02 |
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129 |
Essential oils from Cedrus deodara, Eucalyptus citriodora, Cymbopogon flexuous, C. winterianus, Pinus roxburghii, Syzygium aromaticum and Tagetes minuta were evaluated for bioactivity against the adults of Culex quinquefasciatus and Aedes aegypti. The adults were exposed to the vapour of the different oils for 1h in WHO kits for sensitivity testing. C. winterianus and S. aromaticum oils were equi effective and found most effective with LC50 and LC95 values respectively at 0.5 and 0.9 % for C. quinquefasciatus and 1.0 and 2.0 % for A. aegypti. Activity was found in the order: S. aromaticum> C. flexuous > E. citriodora > C. winterianus > C. deodara> T. minuta.
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134
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A method based on Near Infrared (NIR) spectroscopy has been used for the estimation of sugar, tartaric acid and ethanol content in alcoholic beverages. Experiments were carried out with fiber optic transmission probe, coupled with FT-NIR in the region 4000 – 9000 cm-1. Calibration is performed using Partial Least Squares (PLS) method. Feasibility of technique for on-line applications in beverage industry is assessed. IPC Code: C 12 H 1/16
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138 |
A sensitive and selective spectrophotometric method, developed for the determination of trace amounts of platinum, is based on the formation of platinum as a mixed complex with 2-[(5-bromo-2-pyridylazo)]-5-diethylaminophenol (5-Br-PADAP) and TX-100 or triton X-100 (Polyethylene-di-isobutyl-glycol-ether) from 0.1M SnCl2 in to HCl and extraction with N-hydroxy-N,N’-diphenylbenzamidine (HDPBA) in dichloromethane. The violet coloured Pt(II)- 5-Br-PADAP- (TX-100)–HDPBA complex in dichloromethane shows maximum absorbance at 575 nm with molar absorptivity value of 6.0´104 dm3/mol/cm. High concentration of foreign ions, with the exception of palladium, does not interfere with the determination of platinum. The proposed method has been applied for determination of platinum in automobile exhaust sample, soil and vegetation samples. IPC Code: C 25 B 3/00 |
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144 |
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Applied Materials Management
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Red Hat Linux Networking & System
Administration, 2nd edn
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MySQL/PHP Database Applications |
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150 |
Announcements · Nominations invited for Shanti Swarup Bhatnagar Prizes in Science and Technology for 2005 · National Seminar on Novel Trends in Synthesis, Structure, Reaction Dynamics and Biological Studies of Coordination Chemistry Instructions to contributors |
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