Journal of Scientific & Industrial Research

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VOLUME 70

NUMBER 12

DECEMBER 2011

CONTENTS

Management & Information Technology

1017

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Nonlinear observer-based control for an active rectifier



















 

M Flota, R Alvarez-Salas, H Miranda,
E Cabal-Yepez & R J Romero-Troncoso

In this paper, a nonlinear observer-based controller for a single-phase active front-end (AFE) rectifier is presented to improve power factor with high quality output DC voltage. Proposed algorithm is based on an Luenberger-like observer and a passivity-based controller. Closed-loop stability is demonstrated for all operating ranges using Lyapunov theory. Performance of observer-based controller is shown by simulation for voltage sag occurrence and abrupt load changes.

 

S & T and Industrial Research

1026

A virtual instrument for pulsed electrodeposition: A novel technique for obtaining graded coatings


Nirmala Sanikommu, Nitin P Wasekar,
A S Joshi & G Sundararajan

This study presents a computerized virtual instrument to generate a sequence of current pulses across two electrodes immersed in an electrolyte. Pulse parameters can be entered from a keyboard. Amplitude of pulses can be fixed or programmatically varied over the process period. This system is well suited for developing coatings with graded physical properties.

1029

Effect of molasses, cassava starch, and Arabic gum on mechanical strength of foundry core





API
Popoola

This study presents effects of some local binders on mechanical properties of foundry core to develop a suitable core strength using green compression strength, baked compression strength, permeability and collapsibility tests. Compression strength of baked cores increased with an increase in the quantity of binder added. At 200C in 1.5 h, compression strength after baking increases as water (%) decreases. It was observed that molasses, cassava starch and Arabic gum could serve as effective binder of commercial production of high foundry core but Arabic gum is preferable.

S & T and Industrial Research

1033

Nutritional and antimicrobial property of seabuckthorn (Hippophae sp.) seed oil













Manisha Kaushal & P C Sharma

This study presents nutritional and antimicrobial characteristics of seabuckthorn seed oil, extracted from berries of Hippophae salicifolia (4.3-4.9%) and H. rhamnoides (4.75-5.25%). Seed oil exhibited good antimicrobial property (growth inhibition zone diam, 4.0 mm) against Escherichia coli. Thus, owing to high content of linolenic acid and vitamin E and good antimicrobial property, seed oil can be exploited in pharmaceutical, cosmetic and nutraceutical preparations. Seed cake was rich in proteins and minerals and can be used as animal feed.

1037

Efficacy of non-edible oil seedcakes against termite (Odontotermes obesus)














Satyawati Sharma, Monica Verma,
Rajendra Prasad & DiwakarYadav

This study evaluates termiticidal potential of non-edible oil seedcakes (jatropha, karanja, neem and mahua) and their crude active components (phorbol esters, karanjin, saponins and azadirachtin) in vitro and in vivo. Cold water extracts of neem cake showed better results than hot water extracts of same cake and caused 100% mortality of termites in 72 h. Crude karanjin extract induced 83.3% mortality after 2 h in petriplate (diam, 4.5 cm) and 100% after 4 h in petriplates (diam, 9.5 cm). In vivo, combination of all cakes was most effective with 1.59% weight loss.

1042

Production and optimization of detergent compatible thermostable alkaline protease from Bacillus cereus FJ10
















Faiza Jabeen & Javed Iqbal Qazi

This study presents production and optimization of detergent compatible thermostable alkaline protease from Bacillus cereus FJ10. Identification of isolate FJ10 that showed maximum growth when allowed to grow for 24 h at 50C and pH 9.0 with 1% inoculum was confirmed by 16S rRNA gene sequencing. Proteases yielded maximum activity at 50C having pH 10.0 and 20% substrate concentration. B. cereus FJ10 was partially purified by ammonium sulfate precipitation and dialysis. Both crude and partially purified enzymes were destained blood spots on cotton fabrics. Alkaline and thermostable nature of bacterial proteases qualifies them for detergent formulation.

S & T and Industrial Research

1049

Evaluation of PEGylation reaction and purification of monoPEGylated recombinant human granulocyte colony stimulating factor








Krishnanand Tiwari, Krishna Kattavarapu, Sunil N Shebannavar, Santosh.Pokalwar, Maheshwari K Mishra & Ugam Kumari S Chauhan

In this study, incubation of methoxy polyethylene glycol propionaldehyde (mPEG-ALD) with recombinant human granulocyte colony stimulating factor (rh-GCSF) in presence of cyanoborohydride yielded various species of polyethylene glycol (PEG) conjugated GCSF as detected by size exclusion high performance liquid chromatography (SE-HPLC).. Further, a process involving ion exchange and gel filtration chromatography were used to obtain pure monoPEGylated GCSF. Purified monoPEGylated GCSF was comparable to standard PEGylated rh-GCSF on NFS-60 cell line, suggesting retained biological activity of monoPEGylated GCSF. Further, the procedure is warranted for purification of other monoPEGylated proteins for therapeutic purpose.

Energy and Environment

1054

Preparation of novel catalyst composition from natural waste for biodiesel production
































Surbhi Semwal, Ajay K Arora, Shanti Prakash, Suresh K Puri &
Deepak K Tuli


This study presents preparation of a novel, cost effective and recyclable catalyst from natural waste for production of biodiesel. Novel catalyst composition has been developed using combination of seashell and eggshell in complexation with transition metal oxide TiO2 to form A-B-O type metal oxide complex, where A is alkaline metal and B is transition metal. Catalyst composition has been evaluated and a robust cost effective method for biodiesel production is proposed.

Energy and Environment

1061

Energy optimization in integrated pulp and paper mills with recourse to environmental benefits



























V A Pharande, S R Asthana, D R Saini &
S N Kaul

This study focuses on energy optimization in evaporator and digester of integrated pulp and paper mills in India, and recommends application of 7 effects/plates evaporator in place of 5 effects/plates normally used. Steam economy resulting from this modification is definitely more than 7. Pinch technology is found suitable for optimization of controlled parameters in the digester. Using recommendations, total energy savings was observed in West Coast Paper Mill (11.74%) and Star Paper Mill (12.97%). Environmental benefits that will accrue in terms of reductions in emissions are: SPM, 46464-48664 TPA; SO2, 1045 kg/annum; H2S, 55,020 kg/annum; and CO2, 13612 TPA.

123

Waste Treatment and Utilization

1070

Physicochemical parametric analysis of paper mill effluent using mixed cultures of bacteria and fungi

















R Saraswathi & M K Saseetharan

This study used shake flask method to examine effects of pH, temperature, and duration of incubation on removal efficiency by studying physicochemical parameters and floc stability in degradation of pulp and paper mill effluent over 24 h using mixed cultures of bacteria and fungi. Quadratic models were developed based on high coefficient of determination (R2) obtained from analysis of variance (ANOVA) results. Optimal conditions yielded a decrease in chemical oxygen demand (COD, 70%) and in total suspended solid (TSS, 53%) levels.

Author-Reader Platform

1079

Annual Author Index

1084

Annual Keyword Index

1091

Referee Index

1093

Instructions to contributors

 


Author Index


Alvarez-Salas R

1017

Arora A K

1054

Asthana S R

1061

 

 

Cabal-Yepez E

1017

Chauhan U K S

1049

 

 

Flota M

1017

 

 

Jabeen F

1042

Joshi A S

1026

 

 

Kattavarapu K

1049

Kaul S N

1061

Kaushal M

1033

 

 

Miranda H

1017

Mishra M K

1049

 

 

Pharande V A

1061

Pokalwar S.

1049

Popoola API

1029

Prakash S

1054

Prasad R

1037

Puri S K

1054

 

 

Qazi J I

1042

 

 

Romero-Troncoso R J

1017

 

 

Saini D R

1061

Sanikommu N

1026

Saraswathi R

1070

Saseetharan M K

1070

Semwal S

1054

Sharma P C

1033

Sharma S

1037

Shebannavar S N

1049

Sundararajan G

1026

 

 

Tiwari K

1049

Tuli D K

1054

 

 

Verma M

1037

 

 

Wasekar N P

1026

 

 

Yadav D

1037


Keyword Index


Active front-end (AFE) rectifier

1017

Air emissions

1061

Antimicrobial property

1033

Arabic gum

1029

 

 

Bacillus cereus

1042

B. subtilis

1070

Bioassay

1049

Biodegradation

1070

Biodiesel

1054

 

 

Cassava starch

1029

 

 

Detergent compatible enzyme

1042

Digester

1061

 

 

Electrodeposition

1026

Evaporator

1061

 

 

Foundry core

1029

 

 

GCSF

1049

Graded coatings

1026

 

 

Heterogeneous catalyst

1054

Hippophae

1033

 

 

Insecticidal

1037

 

 

Jatropha

1037

 

 

Karanja

1037

Lipid profiling

1033

 

 

Mahua

1037

Mechanical strength

1029

Molasses

1029

mPEG-ALD

1049

 

 

Natural waste

1054

Neem

1037

Nonlinear observer-based controller

1017

 

 

Paper mill effluent

1070

PEG GCSF

1049

PEGylation

1049

Pinch technology

1061

Power factor

1017

Press cake

1033

Protease

1042

Pseudomonas alkaligenes

1070

Pulse plating

1026

 

 

Response surface methodology (RSM)

1070

 

 

Seabuckthorn

1033

SE-HPLC

1049

Steam economy

1061

 

 

Trichoderma reesei

1070

 

 

Virtual Instrument

1026