Volume-5 ~ Issue-2

Abstract: The dehulled seeds of three varieties of Lagenaria siceraria were subjected to control fermentation process. The fermented and unfermented seeds were analysed for their nutritional and anti-nutritional compositions using AOAC 1998. The fermented seeds were found to contain high amount of crude protein (48.12%) and crude fibre (4.11%) compared to 27.42% and 0.67% for unfermented seeds respectively. Similarly, crude lipid content of the seeds decreased by about 75%. The process also results in decrease in phytate, oxalate, tannins and cyanide content with consequent increase in nitrate and Vitamin C. Hence fermenting the seeds is an important way of exposing its protein content and reducing the antinutritional content. The seeds were found to have good potentials for preparation of condiments which are commonly used in the preparation of soup.

Key words: Anti-nutritional, fermentation, Lagenaria, seed, nutritional

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Abstract: Conducting polymers are known to have significant electrical properties which can be improved by strong oxidizing power of oxidizing agents like V2O5. In the current study oxidative polymerization of the thiophene monomers was done to obtain Polythiophene for converting it into its composites with V2O5 to study their improved electrical nature. The electrical properties of pure Polythiophene, pure V2O5, PTh- V2O5 composite 1:2 (thiophene: V2O5) and PTh- V2O5 composite 2:1(thiophene: V2O5) were studied by carrying out current voltage measurements. It can be stated that the increased concentration of V2O5 is responsible for the increased current flow through the polymer matrix. The study is explained on the basis of fact that oxidizing power leads to removal of higher number of charge carriers from the backbone thereby causing increases in current flow. Such conducting polymers have wide range of applications in the field of Metal ions detectors, molecular electronics, conductive adhesive, electrical displays, electromagnetic shields, chemical, biochemical and thermal sensors, rechargeable batteries, solid electrolytes, optical computers and ion exchange membrane.

Keywords : Composites, Conducting polymers, Polymer matrix, Polythiophene, Thiophene

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[2] Kowsar Majid, M.L.Singla, J mater Sci: Mater Electron DOI 10 .1007/s10854-008-98178

[3] J. M. Xu, H. S. O. Chan, S. C. Ng, T. S. Chung, Synthetic metals,132, 2002, 63-69

[4] C. Visy, J. Lukkari, J. Kankare, Synthetic Metals, 87, 1997, 81

[5] Prakash R Somani, R. Marimuthu, A. B. Mandale, Synthetic Metals, 42, 2007, 991-3001

[6] M. Lanzi et al, Synthetic Metals, 157, 2007, 719-725

[7] P. Somani et al. Synthetic Metals, 42, 2008, 291-301

Abstract:This research comprises of six alternative agents ((NH4)2C2O4, liquid NH3, CH3COOH, NH4OH, (COOH) 2, CH3CH2OH) at various concentrations of 1-5% used as scouring agents with NaOH as control on cotton/polyester blend fabric. The samples were bleached, mercerized and dyed. The suitability and reliability of the agents were evaluated for dyeing properties of the treated fabric. Water imbibing properties of the treated fabric, was investigated. The experimental results showed that the percentage exhaustion of indigo dye on the treated fabric were wonderful with values far above average (86.8-62.6%) except for 1% (NH4)2C2O4 that recorded slightly below average (49.7%). 2% liquid NH3 ranked the highest. The wash fastness is another interesting results where only 1-5% liquid NH3, 2% and 4% (NH4)2C2O4 that gave a grey scale rating for wash fastness of 4 (very good). The other alternative agents strongly competed at various concentrations with the control which revealed a rating of 5 (excellent wash fastness). 4% (NH4)2C2O4 scoured fabrics recorded the highest water of imbibitions (2.9 g). This implies that the alternative agents are suitable and reliable as impurity-removing (scouring) agents. The alternative agents improved the dyeing and water imbibing properties of the treated fabric far better than the control. Therefore could be employed in the textile industry.

Keywords: alternative scouring agents, percentage exhaustion, reliable, suitable, wash fastness, water of imbibitions.

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Abstract:The study was carried out to assess surface and ground water quality of the (Arang block) in Raipur districts. The study area is situated between latitude 21.195 and longitude 81.967. Detailed survey by random samples was collected 8 different sites in Arang block and was analyzed for different Physico-Chemical parameters pH, electrical conductivity, alkalinity, hardness and chloride. The results were compared with BIS .By observing the result it can be concluded that the parameters which were taken for study the water quality are below the pollution level for ground as well as surface water which satisfy the requirement for the use of various purposes like domestic, agricultural, industrial etc.

Key words: Post monsoon, Ground water , Surface water , Physico-Chemical parameter, Raipur Districts.

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