RESEARCH IN ENVIRONMENT AND
LIFE SCIENCES
Volume-4, Number-1, February-2011
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1. |
Res. Environ. Life Sci., 4(1) 1-6 (2011) Evaluation of genotoxicity of a
municipal landfill leachate by micronucleus test
using Clarias gariepinus C.G.
Alimba1*, J.K. Saliu2,
A. Adesanya2, A.A Bakare3 1Department of Cell Biology and Genetics, 2Department of Zoology, 3Cell Biology and Genetics Unit, Department of
Zoology, *e-mail: chivoptera@yahoo.com,
calimba@unilag.edu.ng (Received: October 20, 2010; Revised
received: January 15, 2011; Accepted: January 28, 2011) |
Abstract: The
genotoxic effect of a municipal landfill leachate was evaluated in Clarias
gariepinus using the micronucleustest.
Fish was exposed to (4.95, 7.42, 14.83 and 29.66% concentration) of the leachate for 28 days and micronucleus analysis performed
on peripheral blood erythrocytes. Binucleated and
immature erythrocyte formations were considered along with micronuclei as
cytogenetic damage indicators. The leachate induced
a significant (p<0.05 and p<0.001) concentration dependent increase in
micronucleus, binucleated and immature erythrocytes
in C. gariepinus. The constituents of the leachate especially the metals were believed to cause the
observed cytogenotoxic effects. This implies that
solid waste leachate contains constituent capable
of altering the genetic make up of aquatic forms and may predispose them to
chromosome related disorders. These findings suggest that landfill leachate is capable of polluting the environment and may
cause harm to public health if exposed to chemicals in landfill leachates. Key words: Landfill leachate,
Genotoxicity, Micronucleus, Erythrocytes, Cytotoxicity, Clarias
gariepinus |
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2. |
Res. Environ. Life Sci., 4(1) 7 -12 (2011) Capturing CO2 from flue gas streams in ammonia plant,
waste generation as HSS and its reclamation at CO2 recovery plant,
NFCL, Andhra Pradesh ( R. Raghavan,
G.V.S Anand, P.H.N Reddy, P. Chandra Mohan, V. Appala Raju* andAmar Nath Giri** Quality & Environment
Management System, NFCL, e-mail: *varaju@nagarjunagroup.com, **amarnathgiri@nagarjunagroup.com (Received: October 24, 2010; Revised received: February 05,
2011; Accepted: February 08, 2011) |
Abstract: There
are a number of different methods for Mitsubishi Heavy
Industries (MHI) has concentrated its extensive research and development
programs on the use of sterically hindered amines
and the post combustion, chemical absorption process in particular for
treating flue gasses from natural gas combustion. The CO2
recovery plant consists of three main sections: the flue gas cooler, the
absorber (for CO2 recovery) and the stripper (for solvent
regeneration). In NFCL Kakinada, the flue gas from primary reformer enters in
the flue gas quencher, where it is cooled to 40°C. The flue gas is compressed
to a pressure of 1.113 Ksca and enters in the CO2 absorber.
The CO2 in flue gas is absorbed by KS-1 (Hindered amine)
solvent, which is distributed from top through packed bed system. The CO2 thus
liberated is washed with DM water at the top of CO2 regenerator,
cooled to ambient temperature in an overhead condenser and sent to urea
plants. Key words: Flue
gas, Carbon dioxide recovery plant, Chemical absorption, Heat stable salts |
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3. |
Res. Environ. Life Sci., 4(1) 13-16 (2011) Biodegradation of diesel by
bacterial isolates and effect of diesel on seed germination in Vigno mungo M. Kannahi* and P. Sivasankari PG and Research Department of Microbiology, Sengamala Thayaar Educational ,
Trust Women’s College, Mannargudi – 614 001, *e-mail: kannahisri79@gmail.com (Received: October 07, 2010; Revised
received: February 08, 2011; Accepted: February 10, 2011) |
Abstract: Diesel-
degrading bacteriahas been isolated from a diesel
polluted site. Of the three isolates, the best degrader was selected on the
basis of growth in liquid and solid media supplemented with diesel as sole
carbon source. The isolates were identified as a Pseudomonas aeruginosa, Staphylococcus aureus
and Serratia marcescens
were further studied in batch culture for its diesel biodegradationpotential
under aerobic conditionandwas observed for seven
days, where loss in diesel constituent was up to 75%. Germination and growth
of Vigno mungo
was significantly enhanced in presence of the diesel degrading bacteria. Key words: Vigno mungo, Diesel degradation, Pseudomonas aeruginosa, Staphylococcus aureus,
Serratia marcescens
and seed germination |
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4. |
Res. Environ. Life Sci., 4(1) 17 -20 (2011) Studies on the production and optimization of phb (polyhydroxy
butyrate) using Pseudomonas aeruginosa and Rhizobium spp. N. Uma Maheshwari*
and P.G. &Research Department of Microbiology, Sengamala Thayaar EducationalTrustWomen’s College , Mannargudi - 614 001,india *e-mail:
umasamy2004@yahoo.co.in (Received: October 28, 2010; Revised received: February 15,
2011; Accepted: February 18, 2011) |
Abstract: In this present study bacterial species were
isolated from the soil sample. Among the bacterial isolates Pseudomonas aeruginosa and Rhizobium
spp. were identified based on the cultural, morphology and
biochemical characteristics. PHB production of test isolates were screenedby Key words: PHB,
Rhizobium, Pseudomonas aeruginosa, Optimization |
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5. |
Res. Environ. Life Sci., 4(1) 21 -24 (2011) Efficiency of Azolla as
a biofertilizer for zooplankton production A.K. Gupta1*, D.
Nigam2 and M.M. Prakash2 1Department of Aquaculture, 2Department
of Biotechnology and Bioinformatics, *e-mail: drashokgupta9712@redffmail.com (Received: November 04, 2010; Revised received: February 02,
2011; Accepted: February 06, 2011) |
Abstract: An attempt has been made to study
the efficiency of Azolla as a biofertilizer for production of natural fish food
organisms, i.e. zooplankton for a period of 28 days. Zooplankton
dynamics reveals that production is higher in culture water treated with Azolla as compared to control. The highest
(1609 nos. L-1) and lowest (1250 nos. L-1) zooplankton populationwere observed in 3.0 and 1.0 ml L-1
of Azolla respectively. Mean values
of zooplankton population showed following trend for Azolla
treated water: Cyclops > Daphnia > Brachionus > Nauplii
> Moina. Results indicate that Azolla can be used as a pond fertilizer to
augment the aquaculture production as it is cost effective, eco-friendly and
may supplement organic and chemical fertilizers. Key words:Azolla, Biofertilizer,
Zooplankton |
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6. |
Res. Environ. Life Sci., 4(1) 25 -30 (2011) Steady flow through an asymmetric wavy channel: Non-orthogonal
coordinates Akhilesh Tripathi* Department of Mathematics, *e-mail: nivelesh@rediffmail.com (Received: September 21, 2010; Revised received: February 07,
2011; Accepted: February 12, 2011) |
Abstract:In this paper
we consider the steady flow of a viscous fluid through a channel bounded by
two sinusoidally varying plates in same phase and
separated by a mean distance 2h. For the non-varying channel, the
classical parabolic velocity profile for the fully developed flow is well
known. An attempt here is made to analyze the flow in a generalized
non-orthogonal coordinate system that renders the wavy channels as plane
walls. Continuity equation and Navier-Stokes
equations are presented in the generalized coordinate system and simplified
through use of small perturbation under small Reynolds number approximation.
Centerline velocity have been evaluated and discussed. Key words:Wavy Channel, Navier-Stoke
equations, Small Reynolds Number, Perturbation, Drag |
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7. |
Res. Environ. Life Sci., 4(1) 31 -34 (2011) Total phenolic content and antioxidative potential of amla
and its baked products Kanika Kulshreshta1*,
Jaswinder K. Sangha1and
G. Soni2 1Department of Food and Nutrition, Punjab
Agricultural University, 2
Department of Biochemistry, Punjab
Agricultural University, *e-mail: kanika.kulshreshta@rediffmail.com (Received: September 12, 2010; Revised
received: January 25, 2011; Accepted: January 28, 2011) |
Abstract: In
the present study, value added baked products from fresh and powdered amla (Phyllanthus emblica) were developed and were evaluated for their organoleptic accepatability,
total phenol content and antioxidative potential.
Varieties used for the study were ‘NA-7’ and ‘Francis’. Amla
incorporation at a level ranging between 5 to 30% was found to be highly
acceptable organoleptically (p >0.01) on
evaluation of fresh amla cake, amla-date
cake, amla –apple pie, amla
–jam cookies, amla powder cake and amla salty biscuits. Total phenol content of amla pulp, powder , fresh amla
cake and amla powder cake ranged between 0.95 to 68
mg/g , the highest being in ‘Francis’ powder and lowest in fresh amla cake. In vitro assay systems were used
for evaluating the antioxidative potential using
methanol as a solvent. Maximum hydroxyl radical scavenging potential was
exhibited by Francis powder(EC50 eq/g=3200) followed by ‘NA-7’ powder (EC50 eq/g=1818.2) and fresh amla
cake (EC50 eq/g=154.3). In case of
nitric oxide radical, inhibition was shown by pulp only, ‘Francis’ pulp being
a better scavenger (EC50 eq/g=869.5)
than ‘NA-7’ (EC50 eq/g=689.6). Highest
superoxide radical scavenging potential was shown by ‘Francis’ pulp (EC50
eq/g=2000) followed by ‘Francis’ powder (EC50
eq/g= 1538.5) and ‘NA-7’ pulp (EC50 eq/g=1428.6). Thus, ‘Francis’ was found to be superior
than ‘NA-7’ in exhibiting antioxidative
potential and maximum free radical inhibition in terms of EC50 eq/g was shown by powder followed by pulp. Key words: Amla, Baked
products, Total phenols,Hydroxyl radical, Nitric
oxide radical, Superoxide radical |
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8. |
Res. Environ. Life Sci., 4(1) 35-38 (2011) Water resource management through rain water harvesting Shashank Shekhar Mishra* and Ajai Mishra Centre
of Advanced Study in Geology, *e-mail: enviroshashank@rediffmail.com (Received: October 02, 2010; Revised
received: February 01, 2011; Accepted: February 03, 2011) |
Abstract: This study presents analysis of the
water table position their decline rate due to the urbanization and
management through rain water harvesting. The study was performed at 17 piezometers installed by Central Ground Water Board
(CGWB). The water table in Key words: Urbanization,
Water resource, Rain water harvesting |
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9. |
Res. Environ. Life Sci., 4(1) 39-48 (2011) Current approaches in food fortification for overcoming
micronutrient deficiencies Rachna Mishra Deptartment of Nutrition, e-mail: rmrachna@gmail.com (Received: September 15, 2010; Revised
received: January 18, 2011; Accepted: January 20, 2011) |
Abstract: The
widespread recognition of the importance of micronutrient deficiencies to
global health, and the potential to address such deficiencies relatively
cheaply through fortification or supplementation, has led to several efforts
to support traditional interventions. The role of food fortification in
virtually eliminating micro nutrient deficiency is widely acknowledged and
recognized. WHO identifies fortification (micro nutrient intervention) as
among the most cost effective of all health interventions, but it requires
well developed , efficiently monitored and properly
regulated pharmaceutical and food processing sectors. Food fortification
would be especially beneficial in conjunction with the farming of
increasingly micronutrient-laden foods, biofortification,
and,biotechnology. These
various established alternatives to fortification are examined for their
potential and their limitations, with particular attention to industrial
fortification that would work wonders for the health of Key words: Biofortification,
Biotechnology, Micronutrient deficiencies, Food fortification |
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10 |
Res. Environ. Life Sci., 4(1) 49-51 (2011) The influence of di -ammonium
phosphate (DAP) on serum glutamate pyruvate transaminase of fresh water edible fish wallago attu Indu Kumar* and V.M.S. Sriwastwa Deptt.
of Zoology, K.N.Govt.P.G.College Gyanpur, S.R.N *e-mail: kumar.indu6@gmail.com (Received: April 14, 2010; Revised
received: January 06, 2011; Accepted: January 18, 2011) |
Abstract: The
present paper deals with the toxic effect of fertilizer di-ammonium
phosphate on the SGPTlevels of fish Wallago attu. Due
to the toxic effect of fertilizer di-ammonium
phosphate the enzyme level were higly disturbed.
The effect of fertilizer di-ammonium phosphate was
observed as SGPT levels of fish Wallago attu at six different concentrations for 24 to 144 hr
of exposure. At all the concentrations and exposures, the enzyme levels have
fallen below control at the terminal hr. In 0.42 and 0.45 g L-1
stress of DAP the SGPT increased at initial hours of exposure anddecreased in the end but in all other concentrations
it decreased below the control. Key words: Di-ammonium
phosphate, SGPT, Wallago attu, Serum |