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| Volume-II,
Issue-III, July-September 2013 |
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| Research
Scapes (An International Multi Disciplinary Journal) |
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Quartz Grain Morphology of Quaternary
Sediments & Paleo Soil Present Soil of Narmada Valley
M.P. India Dr. Khan A.A.Ex. Director Geological Survey
of India. CLICK HERE TO ABSTRACT
The
grain morphology shapes and surface textures of sand-sized
quartz grains from the sediments
of various domains of Narmada Valley were studied
to characterize and understand source of
sediments, nature of weathering process, transport
of sediments and overall environment of deposition
and sedimentation. The study of sediment and fine
matrix revealed that sediments were deposited in
rinsing and sinking platform on tectonically adjusted
blocks under different environments. The sediment
assemblage is highly heterogeneous, assorted hybrid,
and its distribution and its configuration is iritic
and unpredictable. The source of sediments is multi
provenance and there is strong mixing of sediment
from multi sources of sediments including pre-existing
Quaternary front of sedimentation. The
configuration of sediments in the tectonic trench
appears to be influenced by readjustment of various
blocks in various phases the entire bulk of sediments
were deposited a high-energy of glacial fluvio
glacial and fluvial environment..
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Aflatoxin Contamination In Groundnut
Seeds. Thakur M.K. and Tiwari S. Department of Botany,
Microbiology and Env. Science, Govt. Model Science College
(Auto.) Jabalpur, M.P., India *Deptt. of Botany, Govt.
M. H. College of Science & Home Science For Women
(Auto.) Jabalpur M.P., IndiaCLICK HERE TO ABSTRACT
Groundnut
is an important pulse and oil seed crop of India.
Due to high nutritive value it is
used extensively as food of human beings and also
as animal feed in different forms. Groundnut seeds
are
highly susceptible to various myco-organisms. Aspergillus
flavus was found to be associated with all seed
samples tested. Its incidence was also quite high.
A. flavus is well known for its aflatoxin producing
ability.
Contamination of food grains with aflatoxins is a
great threat to human beings and animals because of
its
potent carcinogenic properties. During investigation
approx 25% isolates were found to be toxigenic.
However they varied considerably in their ability
to produce aflatoxin B1 i.e. from 10 ppm to 140 ppm.
Chemical analysis revealed that 30% samples of groundnut
seeds were found to be aflatoxin B1 contaminated
in reasonably high amount. Presence of aflatoxin B1
in groundnut seeds is alarming and needs an immediate
attention for mankind.
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