scispace - formally typeset

Institution

Jawaharlal Nehru Technological University, Hyderabad

EducationHyderabad, India
About: Jawaharlal Nehru Technological University, Hyderabad is a(n) education organization based out in Hyderabad, India. It is known for research contribution in the topic(s): Cluster analysis & Control theory. The organization has 3956 authors who have published 5277 publication(s) receiving 48435 citation(s). The organization is also known as: JNTU Hyderabad & Nagarjuna Sagar Engineering College.
Papers
More filters

Journal ArticleDOI
TL;DR: Partitioning pattern of soil revealed high levels of Zn, Cr, and Cu associated with labile fractions, making them more mobile and plant available, and human risk was found to be high for Zn followed by Cr and Pb with special reference to leafy vegetables particularly spinach and amaranthus.
Abstract: Heavy metal pollution of soils resulting from sewage and wastewater irrigation is causing major concern due to the potential risk involved. In the present study Musi River and its environs were assessed for heavy metal contamination. The study area was assessed for Zn, Cr, Cu, Ni, Co and Pb in soils, forage grass, milk from cattle, leafy and non-leafy vegetables. Partitioning pattern of soil revealed high levels of Zn, Cr, and Cu associated with labile fractions, making them more mobile and plant available. The associated risk was assessed using hazard quotient (HQ). Human risk was assessed in people known to consume these contaminated foods by analyzing metals concentrations in venous blood and urine. Results showed high amounts of Pb, Zn, Cr, and Ni compared to permissible limits. HQ was found to be high for Zn followed by Cr and Pb with special reference to leafy vegetables particularly spinach and amaranthus.

691 citations


Journal ArticleDOI
Archana Giri1, M. Lakshmi Narasu1Institutions (1)
TL;DR: Various applications and perspectives of hairy root cultures and the recent progress achieved with respect to transformation of plants using A. rhizogenes are discussed.
Abstract: Agrobacterium rhizogenes causes hairy root disease in plants. The neoplastic roots produced by A. rhizogenes infection is characterized by high growth rate and genetic stability. These genetically transformed root cultures can produce higher levels of secondary metabolites or amounts comparable to that of intact plants. Hairy root cultures offer promise for production of valuable secondary metabolites in many plants. The main constraint for commercial exploitation of hairy root cultures is their scaling up, as there is a need for developing a specially designed bioreactor that permits the growth of interconnected tissues unevenly distributed throughout the vessel. Rheological characteristics of heterogeneous system should also be taken into consideration during mass scale culturing of hairy roots. Development of bioreactor models for hairy root cultures is still a recent phenomenon. It is also necessary to develop computer-aided models for different parameters such as oxygen consumption and excretion of product to the medium. Further, transformed roots are able to regenerate genetically stable plants as transgenics or clones. This property of rapid growth and high plantlet regeneration frequency allows clonal propagation of elite plants. In addition, the altered phenotype of hairy root regenerants (hairy root syndrome) is useful in plant breeding programs with plants of ornamental interest. In vitro transformation and regeneration from hairy roots facilitates application of biotechnology to tree species. The ability to manipulate trees at a cellular and molecular level shows great potential for clonal propagation and genetic improvement. Transgenic root system offers tremendous potential for introducing additional genes along with the Ri T-DNA genes for alteration of metabolic pathways and production of useful metabolites or compounds of interest. This article discusses various applications and perspectives of hairy root cultures and the recent progress achieved with respect to transformation of plants using A. rhizogenes.

531 citations


Journal ArticleDOI
Abstract: Water pollution control is presently one of the major thrust areas of scientific research. While coloured organic compounds generally impart only a minor fraction of the organic load to wastewaters, their colour renders them aesthetically unacceptable. Stringent regulating measures are coaxing industries to treat their waste effluents to increasingly high standards. Colour removal, in particular, has recently become an area of major scientific interest as indicated by the multitude of related research reports. During the past two decades, several decolourization techniques have been reported, few of which have been accepted by some industries. There is a need to find alternative treatments that are effective in removing dyes and colourants from large volume of effluents, which are cost-effective, like the biological or integrated systems. This article reviews some of the widely used and most promising industrial wastewater decolourization methods. Data on decolourizing efficiencies of different causative agents, obtained by means of different physical, chemical and biological methods are discussed. Further a critical review is made on the various treatment methodologies and emerging technologies with a note on their advantages and disadvantages.

530 citations


Journal ArticleDOI
Anupama1, Pogaku Ravindra2Institutions (2)
Abstract: The alarming rate of population growth has increased the demand for food production in third-world countries leading to a yawning gap in demand and supply This has led to an increase in the number of hungry and chronically malnourished people This situation has created a demand for the formulation of innovative and alternative proteinaceous food sources Single cell protein (SCP) production is a major step in this direction SCP is the protein extracted from cultivated microbial biomass It can be used for protein supplementation of a staple diet by replacing costly conventional sources like soymeal and fishmeal to alleviate the problem of protein scarcity Moreover, bioconversion of agricultural and industrial wastes to protein-rich food and fodder stocks has an additional benefit of making the final product cheaper This would also offset the negative cost value of wastes used as substrate to yield SCP Further, it would make food production less dependent upon land and relieve the pressure on agriculture This article reviews diversified aspects of SCP as an alternative protein-supplementing source Various potential strains and substrates that could be utilized for SCP production are described Nutritive value and removal of nucleic acids and toxins from SCP as a protein-supplementing source are discussed New processes need to be exploited to improve yield In that direction the solid state fermentation (SSF) method and its advantages for SCP production are highlighted

459 citations


Journal ArticleDOI
Vivek Dhand1, Vivek Dhand2, L. Soumya1, Sundar G. Bharadwaj3  +3 moreInstitutions (4)
TL;DR: X-ray crystal analysis showed that the silver nanoparticles are highly crystalline and exhibit a cubic, face centered lattice with characteristic (111), (200), (220) and (311) orientations and anti-bacterial activity on E. coli and S. aureus demonstrated diminished bacterial growth with the development of well-defined inhibition zones.
Abstract: A novel green source was opted to synthesize silver nanoparticles using dried roasted Coffea arabica seed extract. Bio-reduction of silver was complete when the mixture (AgNO3+extract) changed its color from light to dark brown. UV-vis spectroscopy result showed maximum adsorption at 459 nm, which represents the characteristic surface plasmon resonance of nanosilver. X-ray crystal analysis showed that the silver nanoparticles are highly crystalline and exhibit a cubic, face centered lattice with characteristic (111), (200), (220) and (311) orientations. Particles exhibit spherical and ellipsoidal shaped structures as observed from TEM. Composition analysis obtained from SEM-EDXA confirmed the presence of elemental signature of silver. FTIR results recorded a downward shift of absorption bands between 800-1500 cm(-1) indicting the formation of silver nanoparticles. The mean particle size investigated using DLS was found to be in between 20-30 nm respectively. Anti-bacterial activity of silver nanoparticles on E. coli and S. aureus demonstrated diminished bacterial growth with the development of well-defined inhibition zones.

327 citations


Authors

Showing all 3956 results

Network Information
Related Institutions (5)
VIT University

24.4K papers, 261.8K citations

91% related

Birla Institute of Technology and Science

13.9K papers, 170K citations

91% related

Indian Institute of Technology Roorkee

21.4K papers, 419.9K citations

88% related

National Institute of Technology, Rourkela

10.7K papers, 150.1K citations

88% related

Jadavpur University

27.6K papers, 422K citations

88% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202217
2021479
2020445
2019364
2018413
2017502