Journal of Scientific & Industrial Research

http://www.niscair.res.in; http://nopr.niscair.res.in

Total visitors: 7806 since 12-09-2011

VOLUME 70

NUMBER 10

OCTOBER 2011

CONTENTS

Reviews

823

Advances in minimal processing of fruits and vegetables: a review





Md Wasim Siddiqui, Ivi Chakraborty,
J F Ayala-Zavala & R S Dhua

This paper covers an exhaustive review on advances in minimal processing of fruits and vegetables. The review includes an exclusive discussion on production chain of minimally processed products from raw material selection to its consumption with different aspects including food safety issues. The intent is to provide a level of understanding that can be used to underpin future research directions in order to resolve existing issues that limit fresh-cut quality and shelf life.

835

A critical review of heat transfer through helical coils of circular cross section



S S Pawar, Vivek K Sunnapwar &
B A Mujawar

This paper reviews heat transfer through helical coil of circular cross sections in terms of different dimensionless numbers, their validity, and effect of geometry, friction factors, different coil curvature ratios, fluid types, laminar and turbulent flow on heat transfer rate.

Management & Information Technology

844

Parameter design for MIG welding of Al-65032 alloy using Taguchi technique

















G Haragopal, P V R Ravindra Reddy,
G Chandra Mohan Reddy &
J V Subrahmanyam

This study presents Taguchi method to design process parameters that optimize mechanical properties of weld specimen for aluminum alloy (Al-65032), used for construction of aerospace wings. Process parameters of MIG welding setup considered are gas pressure, current, groove angle and pre-heat. Assigning process parameters to L-9 orthogonal array, experiments were conducted and optimization condition was obtained along with the identification of most influencing parameters using S/N analysis, mean response analysis and ANOVA.

S & T and Industrial Research

851

Two charge-transfer complexation reactions for spectrophotometric determination of pheniramine maleate using π-acceptors
















M S Raghu & K Basavaiah

This study presents two simple, selective and rapid spectrophotometric methods for determination of pheniramine maleate (PAM) in pure form and in its formulations. Both methods are based on the formation of charge-transfer (CT) reaction of PAM with p-chloranilic acid (CAA) or 2,3-dichloro-5,6-dicyanoquinone (DDQ) in 1,4-dioxan-acetonitrile medium. Developed methods were successfully applied for determination of PAM in tablets and injections.

859

Antioxidant and antimutagenic activities of Acacia pennatula pods




Ana A Feregrino-Pérez,
Irineo Torres-Pacheco,
Marcela Vargas-Hernández,
Perla V Munguía-Fragozo,
Guadalupe F Loarca-Piña,
Sandra O Mendoza-Díaz,
Rosalía V Ocampo-Velázquez,
Enrique Rico-García &
Ramón G Guevara-Gónzalez

Methanolic extracts of Acacia pennatula pods (MEA) were screened for antioxidant and antimutagenic properties by 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2´-azinobis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS), ferric reducing antioxidant power (FRAP) and Kado microsuspension assays, respectively. Total phenolic and flavonoid contents as well as HPLC identification and quantification of gallic acid and (+)-catechin were also carried out. MEA were capable of significant antioxidant capacity by DPPH, ABTS and FRAP methods. MEA inhibited > 80% mutagenicity induced either by 4-nitro-O-phenylenediamine or sodium azide. Thus phenolics-containing extracts of A. pennatula pods display biological activities with potential application in pharmaceutical and food sectors.

865

Production of semi- refined carrageenan from Eucheuma cotonii














S Mustapha, H Chandar, Z Z Abidin,
R Saghravani & M Y Harun

This study presents alkaline extraction of red seaweed, Eucheuma cotonii, to yield semi-refined carrageenan (SRC) of kappa type. Temperatures 60-80°C were suitable for extraction of SRC. At 80°C using 1.0 M KOH, produced SRC contained the highest purity of 3, 6-anhydrogalactose, a lower heavy metal concentration and gave highest rupture force.

S & T and Industrial Research

871

Validation and quality assessment of Rasamanikya- A classical herbo-mineral preparation





















Sudesh N Gaidhani, Arjun Singh, C E Lagad, Suman Kumari, G S Lavekar, M M Padhi & B S Sharma

This study presents validation and quality assessment of Rasamanikya, a light, micro fine powder, prepared by processing Patra Haratala, in which powder of Shodhita Haratala (Orpiment- As2S3), sandwiched between two Abhraka (white mica) sheets, is heated for a while to obtain a specific pharmaceutical preparation. Analysis of Rasamanikya was performed through qualitative and quantitative analyses, besides some physico-chemical analysis and other tests such as IR spectroscopy, Raman spectroscopy, EDAX and X-ray diffraction (XRD) to ensure the quality of drug.

Energy and Environment

875

Biodiesels: an alternative renewable energy for next century






















S Prabhakar & K Annamalai

Five non-edible vegetable oils (nerium, jatropha, pongamia, mahua & neem) were selected as alternate fuels and comparison analysis of performance and emission were done. A comparative analysis was done for methyl esters of different oils in blends with diesel of different proportions. It was observed that a diesel engine runs successfully on a blend of 20% biodiesel and 80% diesel fuel without affecting engine performance. Methyl ester from Nerium oil, with properties close to diesel, showed better performance and emission characteristics, followed by esters of jatropha, Pongamia, Mahua and Neem.

Energy and Environment

879

Effect of biodiesel and its blends with oxygenated additives on performance and emissions from a diesel engine


























S Sivalakshmi & T Balusamy

This study presents effects of diethyl ether and ethanol as additives to biodiesel (neem oil methyl ester) on the performance and emission characteristics of a diesel engine at different loads and constant engine speed. Compared with biodiesel, slightly lower brake specific energy consumption for diethyl ether and ethanol blended biodiesel fuels was observed. At higher engine loads, CO and smoke emissions were found significantly lower with all blends [BD-1 (5% diethyl ether, 95% biodiesel), BD-2 (10% diethyl ether, 90% biodiesel), BE-1 (5% ethanol, 95% biodiesel) and BE-2 (10% ethanol, 90% biodiesel)] compared to biodiesel, but HC and NOx emissions were found higher.

884

Effect of glass slope angle and water depth on productivity of double slope solar still






















Ahmed Z Al-Garni, Ayman H Kassem, Farooq Saeed & Faizan Ahmed

This study presents design, fabrication and testing of double slope solar still and also optimization of glass tilt angle (25, 30, 35 and 40°) and water depth (1, 2 and 3 cm) in Saudi Arabian climatic conditions. Optimum tilt angle was found to be 35° for both summer and winter seasons, and also productivity increases with reduction in water depth. A number of existing energy and mass balance equations were used to validate experimental results. Numerical and experimental results were in good agreement with an RMS error of 5-10%.

Book Reviews

891

Radiation processing technology application, vol I, reviewed by Ms P R Solanki

Radiation processing technology application, vol II, reviewed by Dr S Sengupta

Author-Reader Platform

893

Instructions to contributors

 

 


Author Index


Abidin Z Z

865

Ahmed F

884

Al-Garni A Z

884

Annamalai K

875

 

 

Balusamy T

879

Basavaiah K

851

 

 

Chandar H

865

 

 

Dhua R S

823

 

 

Feregrino-Pérez A A

859

 

 

Gaidhani S N

871

Guevara-Gónzalez R G

859

 

 

Haragopal G

844

Harun M Y

865

 

 

Kassem A H

884

Kumari S

871

 

 

Lagad C E

871

Lavekar G S

871

Loarca-Piña G F

859

 

 

Mendoza-Díaz S O

859

Mujawar B A

835

Munguía-Fragozo P V

859

Mustapha S

865

 

 

Ocampo-Velázquez R V

859

 

 

Padhi M M

871

Pawar S S

835

Prabhakar S

875

 

 

Raghu M S

851

Reddy G C M

844

Reddy P V R R

844

Rico-García E

859

 

 

Saeed F

884

Saghravani R

865

Sharma B S

871

Siddiqui M W

823

Singh A

871

Sivalakshmi S

879

Subrahmanyam J V

844

Sunnapwar V K

835

 

 

Torres-Pacheco I

859

 

 

V Chakraborty I

823

Vargas-Hernández M

859

 

 

Ayala-Zavala J F

823


Keyword Index


Acacia pennatula

859

Al 65032

844

ANOVA

844

Antimutagenic

859

Antioxidant

859

 

 

Biodiesel

875

Biodiesel

879

 

 

Charge-transfer (CT) complexation

851

Curved tubes

835

 

 

Diethyl ether

879

 

 

Emission

879

Emissions

875

Ethanol

879

Eucheuma cottonii

865

Extraction

865

 

 

Fresh-cut fruits and vegetables

823

Friction factor

835

 

 

Helical coil

835

 

 

Laminar flow

835

 

 

MIG

844

Minimal processing

823

 

 

Neem oil methyl ester

879

Non-edible oils

875

 

 

Orthogonal arrays

844

 

 

Performance

875

Pharmaceuticals

851

Pheniramine maleate (PAM)

851

Phenolic compounds

859

Physiological activity

823

Potassium hydroxide

865

Preservation techniques

823

 

 

Rasamanikya

871

Rasashastra

871

Renewable energy

884

 

 

S/N analysis

844

Semi-refined carrageenan (SRC)

865

Solar distillation

884

Solar still

884

Spectrophotometry

851

Standardization

871

 

 

Taguchi method

844

Turbulent flow

835