IOSR-JESTFT   Volume-1 ~ Issue-1 ~ Sep–Oct 2012

Abstract: This paper examines dam construction in relation to positive and negative socio-economic impacts. It is affirmed that Environmental Impact Auditing (EIA) holds the key to lowering negative impacts. It is a well known fact that dam construction impacts are multi-disciplinary as climatology, geology, biodiversity, etc are affected, with each having feedback effects. Environmental managers and planners must therefore seek to combat negative impacts of dam construction with the use of cognate Environmental Management Plans (EMPs).

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Abstract: The aim of this work was to develop a spectrophotometric method of glyphosate assay that is consistent and reproducible over a wide range of concentrations. The use of two buffer systems 4M CH3COOLi pH 5.2/Hydrindantin/DMSO and 0.2M sodium citrate buffer pH 5.0/Ascorbic acid/DMSO which have not been used before for ninhydrin quantification of glyphosate is hereby reported. The absorbance of the resulting purple derivative was measured at 570 nm with molar absorptivity of 5.799×104 and 1.975×104 L mol−1 cm−1. Linear relationships between concentration and absorbance were observed over Beer's law range from 0.3 to 4.5μg/ml. For the citrate system, R2 =0.982, SD = 0.3744, N= 9 and P < 0.0001; while R2 =0.984, SD = 1.0956, N= 8 and P < 0.0001 for the acetate system. The citrate buffer/ascorbic acid system was employed successfully in adsorption studies of glyphosate unto kaolin and starch. Limits of detection and quantification were 0.6159 and 0.699 μg/ml respectively for citrate buffer and 1.802 and 5.5465 μg/ml respectively for the lithium acetate buffer system. The method was applied to quantification of glyphosate adsorption to kaolin and starch, where the citrate buffer gave R2 values of 0.803 (Freundlich) and 0.964 (Langmuir) for kaolin.
Keywords: Buffer, Glyphosate, Ninhydrin, Spectrophotometric determination

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[7] D. K. Sharma, R. Kashyap and N. Kumar, Spectroscopic method for determination of glyphosate in relation to its environmental and toxicological, Arch. Environ. Sc. 6, 2012, 42-49.
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Abstract: Studies were conducted to analyze the characteristics of shelf stable canned salted beef with tomato gravy involving the effect of thermal processing. Product standardization was done by traditional method utilizing tomato gravy along with salted beef for making shelf stable canned meat. After that the optimized preservative concentration and thermal treatments were given to it at different temperature time combinations viz., 1100C 1150C and 1210C for 20,30 and 40 minutes respectively in order to interpret the effect of thermal processing and salt as a preservative. Samples were evaluated initially and after that at the intervals of 0, 15, 30, 45, 60, days for sensory analysis. Microbiological, chemical and sensory studies were conducted after each 15 day interval up to other 60 days in order to depict the increase in shelf life stability due to application of curd as an emulsifier (i.e. effect of preservative and thermal processing). It was found that the thermal processing of shelf stable canned salted beef with tomato gravy done at 121 0C for 40 minutes had significantly superior acceptability and the adequate protein, fat, moisture content was found significantly superior in 1100C for 40 min.
Keywords: Product Standardization, Thermal processing, Canning, Sterilization, Shelf life study.

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Abstract: Ants are dominant insects and highly developed social animal. They are widely distributed throughout the world. Currently there are 28 subfamilies and 408 genera. (Bolton et.al, 2007) The species Messor himalayanus Forel belongs to the subfamily Myrmicinae of family Formicidae. The present study was carried out in three places of Kollam district viz. Kuriottumala, Punalur and Yeroor. The ecology of this species ie; nesting pattern, habit, habitat, food preferences, active involvement in day timings and colonial behavior are observed. The species Messor himalayanus Forel resdescribed, compared with other species of Messor and similarities and dissimilarities are also provided. Currently there are only two species of Messor reported from India and only one from South India and the species Messor himalayanus Forel adds a new report to South India.
Keywords: Messor himalayanus, Myrmicinae, New report, Resdescription, South India.

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