International Journal of Advanced Research in

Science and Technology (IJARST)


Volume 3 - Issue 2 | 2014


01. Microbial degradation of Amido Black by Pseudomonas sp. and its kinetics

Jegatheesan. M and M. Eyini*

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Highlights

Azo dyes constitute the largest and most versatile class of synthetic dyes used in the textile, pharmaceutical, food and cosmetics industries and represent major components in wastewater from the industrial dying processes. Biological degradation of Amido Black (AB), an azo dye, by a lab isolate of Pseudomonas sp. was studied by varying the culture conditions. About 90% of AB (100ppm) degradation was observed within 45 h of incubation in nutrient broth medium at 28±2°C under static conditions.

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02. Effect of Isolation Methods on Physicochemical and Functional Properties of Cassava Starch

J. SudhakaraRao and R. Parimalavalli*

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Physicochemical and functional properties of cassava starch determine its applications in food systems. This study was undertaken to isolate and to determine the physicochemical and functional properties of cassava starch. Cassava starch was isolated from fresh root and dry chips by centrifugation and sedimentation methods. Physicochemical and functional properties of the starches were analyzed. Fresh root yielded (26.07-30.17%) the highest starch followed by dry chips (17.59-23.60%) in sedimentation method. Fresh root starch had lower moisture content (8.88-10.24%), high swelling power (10.86-11.58g/g) and water absorption capacity (84.02-86.18%) compared with dry chips starch. Nevertheless no significant difference was seen in dry matter (87.17-89.99%), ash content (0.23-0.41%), and pH (5.07-5.50), among the isolated starches. Hence fresh root starch with high water absorption capacity and high swelling power could be used for the preparation of bakery products.

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03. Alternative substrates for the amylase and cellulase production with rhizobial isolates

Gauri Singh* and Ashok Kumar Singh

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In the present study sixty root nodule bacteria were isolated from Vigna radiate and Cicer arietinum. As we know that nutrients and growth conditions promote the yield of microbial enzymes. However, carbon sources such as dextrin, fructose, glucose, lactose, maltose and starch are very expensive for commercial production of enzymes. These expensive products could be replaced in the medium with economically available agricultural by-products like corn flour, wheat flour, rice flour, sorghum and baggase as carbon substrate. The aim of this study was the production of amylases and cellulases from rhizobia using cheap carbon sources to reduce the production cost of enzymes .All isolates were screened for the amylase and cellulase production using starch and carboxy methyl cellulase (CMC) hydrolysis respectively .

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04. Estimation of Total Bioactive Compounds in Pigmented and Non Pigmented Genotypes of Sorghum (Sorghum bicolor (L.) Moench)

Bangaru Naidu Thaddi * and Sarada Mani Nallamilli

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Sorghum seed contains unique bioactive compounds on par with other cereals. Bioactive compounds in plants can be defined as secondary plant metabolites. The secondary bioactive compounds in plants appear to be randomly synthesized but they are not useless junk. They can be used as anantimicrobial, antioxidant, and anti-inflammatory activity. Hence, In the present study, we have investigated to estimate the total bioactive compounds in selected genotypes by using spectrophotometer to quantitative and qualitative assay on six different genotypes including non pigmented (IS 3477, IS 33095, IS 7005) pigmented (IS 2898, IS 7155, IS 1202).

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05. Improved Image Filtering Using Integrated Hybrid Median Filter & Alpha Trimmed Mean Filter

Prabhdeep Singh*, Aman Arora and Rakesh Sharma

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Image filtering is a crucial part of vision processing as it can remove noise from noisy images. There are many filtering techniques to filter an image. Each filtering technique has its own benefits to filter an image. The overall objective of this paper is to explore the benefits and limits of existing techniques and propose an improved filter which reduces noise from image. It is found that hybrid median filter and alpha trimmed has some potential benefits over existing filters when to reduce salt and pepper noise, but the improved filter can be used as framework for opening further research directions in solving for noise removal.

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06. Removal of Hexavalent Chromium from Aqueous Solutions using Sawdust as a low Cost Adsorbent

Minakshi, C.P.Kaushik and Sandeep Arya*

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In the present study, adsorbent is prepared from Delbergia sissoo, and used for Cr (VI) removal from aqueous solutions. Adsorbent is activated with the use of concentrated sulphuric acid. The adsorption of chromium (VI) from aqueous solutions by activated sawdust was studied under a batch and column mode and was demonstrated that the adsorbent prepared from sawdust has a significant capacity for adsorption of Cr (VI) from aqueous solution. The influence of pH, contact time, adsorbent dose and initial concentration of Cr (VI) on the chromium removal was investigated under the batch studies. Adsorption of Cr (VI) is highly pH-dependent and the results indicate that the optimum pH for the removal is 2. In column studies maximum removal was found at bed height 10 cm and flow rate of 1 ml/min. The capacity of chromium adsorption at equilibrium by these natural wastes increased with absorbent concentration. The suitability of adsorbents was tested with Langmuir and Freundlich isotherms and their constants were evaluated.

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07. Diversity, Feeding Guild and Abundance of Wetland Birds at Sompeta Beela, Tekkali Division, Srikakulam Dist, Andhra Pradesh, India.

S. Mukunda Rao*

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Sompeta wetland is locally called beela. It is an important wetland habitat in Tekkali division of Srikakulam district .These wetland is a complex of three distinct canals namely peddabeela, chinabeela and tampara. These wetlands support a rich avian diversity. A total number of 109 species of wetland birds belonging to 86 genera and 41 families distributed in 16 orders have been recorded in sompeta wetland complex .These wetland area is under pressure from diverse anthropogenic activities and proposed thermal power project in this beela area. This paper provides an overview status of wetland birds, feeding guild and threats to them in the study area.

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08. Modeling Structural and Thermal Analysis of Conrod Using Composite Materials.

P.TulasiRadha*, T.Prakash Lazarus and I.Satyanarayana

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The connecting rod is the intermediate member between the piston and the Crankshaft. It’s primary function is to transmit the push and pull from the piston pin to the crank pin, thus converting the reciprocating motion of the piston into rotary motion of the crank. Existing connecting rod is manufactured by using Forged steel. This paper describes modeling and analysis of connecting rod. In this project connecting rod is replaced by Composite materials 6061-T6. A 2D drawing is drafted from the calculations. A parametric model of connecting rod is modeled using SOLIDWORKSV13-14 software. Analysis is also carried out by using SOLIDWORKS V13-14software.

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09. Modulation of Mitogen-Response and Phagocytic Activities of Human Lymphocytes and Macrophages by Aqueous, Hexane and Methanol Extracts of Stem Bark of Boswellia Dalzeilii, Hutch (Family: Burseraceae)

OUMAR Mahamat*, TUME Christopher and KAMANYI Albert

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The barks of Boswellia dalzeilii (B. dalzeilii) have been traditionally used in Cameroon and other Africa countries. The aqueous extract (Aq-extract), methanol extract (Me-extract) and hexane extract (He-extract) of Boswellia dalzeilii barks were evaluated for immune modulatory activity using in vitro and in vivo methodologies. Effect of the extracts was evaluated at various concentrations (2560 – 160 μg/ml) for reduction of Nitro blue tetrazolium (NBT), inducible nitric oxide synthase (iNOS) and myeloperoxidase activity of macrophages. Particularly, aq-extract was evaluated in vivo for carbon clearance.

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10. Vibration Analysis and IN-SITU Dynamic Balancing

Ch.Rohini Kumar * , Raghavarao M , T.Prakash Lazarus and B.Arun babu

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Over the years machinery health management has become vital part of the plant operation. Earlier day’s machinery maintenance is only focused on reactive maintenance. In later stages, Vibration Monitoring is a critical component of any Predictive Maintenance (PdM) Practices. Vibration Monitoring and subsequent analysis has helped in identifying an earlier consequence of breakdowns. [1]The idea of performing Predictive Maintenance to perform maintenance on the machines they exhibit signs of mechanical failure has become known as Condition Based Maintenance (CBM). Condition Based Monitoring System (CBMS) is proven technology to be less costly than the failure. A simple Consequence of Failure Analysis (CFA) is made to justify preventive maintenance activities. This evolutionary process of machinery maintenance has allowed the maintenance operation to more “Proactive” than reactive in their maintenance tasking. This paper pertains to one such study made at M/s MRF Ltd, who is the leading the tyres manufacturer in India, on a Main Circulation Blower which extremely critical for their production. We have observed the machinery health condition based on vibration measurements and vibration analysis which really helped us in identifying a failure sequence. In-situ dynamic balancing of main circulation blower ,which focuses the importance vibration analysis to reduce the induced vibrations from unbalance forces and Significant reduction in the vibration levels and which increased the machinery availability for production.

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