Veena Gayathri Krishnaswamy

Veena Gayathri Krishnaswamy
Stella Maris College · Department of Biotechnology

Ph.D. (Environmental Biotechnology)

About

61
Publications
4,563
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306
Citations
Citations since 2017
56 Research Items
271 Citations
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150

Publications

Publications (61)
Chapter
The current decade is an exciting era during which high throughput “meta omics” approaches resolve the “microbial dark matter” in the ecosystem. Meta-proteomics is a significant solution in delivering the predominant impetus units of the microbiome that ensures the mapping of morphological-genetic linkages from the environment. The current review p...
Article
A novel method was implored in dyeing of cotton fabric using combination of anthocyanin and copper iodide (CuI) nanoparticle. Natural pigments/dyes are derived from biological components like bacteria, fungi, and plant sources. Synthetic dyes are used in textiles leaving behind toxic effluents in the water system. Natural pigments can be employed i...
Article
The marine ecosystem contains a solution for food, shelter, pharmaceutical problems and has a key role in the economy of the country as tourism. The Gulf of Kachchh, known for its high tides and the coral reefs are less explored for its antibiotic activity due to the coral bleaching and diseases. The bacterial strains in the coral Porites lutea are...
Article
Development of science has taken over our lives and made it mandatory to live with science. Synthetic technology takes more than it has given for our welfare. In the process of meeting the demand of the consumers, industries supported synthetic products to meet the same. One such sector that employs synthetic azo dyes for food coloring is the food...
Article
Biofortification is a revolutionary technique for improving plant nutrition and alleviating human micronutrient deficiency. Fertilizers can help increase crop yield and growth, but applying too much fertilizer can be a problem because it leads to the release of greenhouse gases and eutrophication. One of the major global hazards that affects more t...
Article
The nitrogen-fixing bacterium has great prospects in replacing synthetic fertilizers with biofertilizers for plant growth. It would be a useful tool in eradicating chemical fertilizers from use. Five nitrogen-fixing bacteria were isolated from the Tea and Groundnut rhizosphere soil out of which RSKVG 02 proved to be the best. The optimized conditio...
Article
Potassium (K) and phosphorus (P) are the important macronutrients needed for the plant development, but it is widely present in an insoluble form for the plant's uptake. In order to increase the productivity, biofertilisers play crucial role in plant growth enhancement. Our present work focused to isolate potassium-phosphate solubilizing bacteria f...
Article
Accidents involving diesel oil spills are prevalent in sea- and coastal regions. Polycyclic aromatic hydrocarbons (PAHs) can be adsorbed in soil and constitute a persistent contaminant due to their poor water solubility and complex breakdown. PAHs pollution is a pervasive environmental concern that poses serious risks to human life and ecosystems....
Article
Coral reefs are constantly subjected to multiple stresses like diseases and fish predation, which can profoundly influence the coral microbiome. This study investigated the differences in bacterial community structure of healthy, white syndrome affected and blenny nipped coral colonies of Porites lutea, collected from the coral reefs of Gulf of Kac...
Article
The emerging industrialization has resulted in the rapid growth of textile industries across the globe. The presence of xenobiotic pollutants in textile wastewater threatens the ecosystem. Applying different microbes (bacteria, fungi & algae) has paved the way for phytoremediation – the eco-friendly, cost-effective method. The present study focuses...
Article
Full-text available
Azo dyes are the most widely used dyes in the textile industry due to their stability, but their redundancy to degradation is of significant concern, particularly to aquatic ecosystems. In the present study, a lab-scale aerobic sequential batch reactor (SBR) was operated to analyze the degradation of mixed reactive azo dyes at a concentration of 10...
Article
The most significant topic currently under the moonlight is Nanobiotechnology and engineered nanomaterials. The novel characteristics displayed by engineered Nanomaterials, especially carbon-based nanomaterials, have spurred interest in its potential application in the food industry. It has provided opportunities for finding solutions to the long-s...
Chapter
The original version of this chapter was inadvertently published without updating Figs. 1 (Pg-507) and 2 (Pg-509) as per the author’s request. Although they are correctly present on the online version. This has now been updated.
Article
Nanotechnology for the past decade has made tremendous improvement and diverse applications in various sector. Among the nanomaterials synthesized, carbon allotropes are advantageous due to its easy functionalization, conductivity, surface area and electrical activity. Hence, they are termed as “Wonder materials”. Allotropes such as carbon nanotube...
Article
The extensive utilization of dyes in the industries and the consequent generation of their effluents in the water bodies have posed a major risk to the environment and mankind. Therefore, there is an increased necessity for waste water treatment in textile industries. The present study involves the utilization of highly versatile copper (I) iodide...
Article
The key source for Benzo[a]pyrene (B[a]P) and various other Polyaromatic hydrocarbon (PAH) is partial ignition of crude oil, and several other by-products of petroleum and its components. Moreover, industries that utilises coal and further when coal is burnt during various natural and anthropogenic activities also leads B[a]P to cause great threat...
Article
Cellulose is the main polysaccharide present abundantly in the earth, an important substrate for the cellulase enzyme. Cellulases have attracted considerable attention due to its diverse application in different textile, detergent, leather, food, feed and paper industries. Among the cellulase producing microbes, bacteria have a faster growth compar...
Chapter
Plastics are inert materials that are resistant to environmental and mechanical stress. The immense use of plastics has increased over the past decade. In addition, utilization of non-degradable polymers showed the impact on health of the terrestrial and aquatic lives. In general physical or chemical recycling process, which reduces the accumulatio...
Article
The microbial community's structure and functions determine the health, quality, and anthropogenic conditions of the river ecosystems. The presence of Bacteria such as Arcobacter spp, Escherichia spp, and Campylobacters spp, have been shown to reflect the poor water quality of rivers. Apprehension of the microbial community in polluted water bodies...
Article
Paper has become the basic elixir in everyone's activities and usage of paper has increased day by day, the waste generated by paper is also enormous. The primary source of paper is wood (tree) yet, waste paper is environmentally good and biodegradable; however, it is the primary source of deforestation. Current research aims to find an alternate w...
Article
Full-text available
Microorganisms cause variety of diseases that constitutes a severe threat to mankind. Due to the upsurge of many infectious diseases, there is a high requirement and demand for the development of safety products finished with antimicrobial properties. The study involves the antimicrobial activity of natural cotton coated with copper iodide capped w...
Article
The dying of textiles, foods, tablets, and cosmetics has gained importance as they are attractive and colorful. These dyes vary in their physical and chemical properties. These dyes are resistant to stresses and are carcinogenic and mutagenic. The release of reactive azo dyes into the environment poses a great threat to living organisms. The treatm...
Article
Scientific empowerment in this century created a positive and negative impact on the ecosystem's biotic and abiotic components. The current scenario of emerging recalcitrant pollutants in the environment is encountered using various remediation approaches are enforced and applied. The need for mineralization of the toxic pollutants to non - toxic f...
Article
Azo dyes, known for its toxicity and mutagenicity, are used by textile industries. Bioremediation serves the best alternative treatment process due to its eco-friendly nature and cost-effectiveness. Degradation using individual bacteria promotes azo dye removal, while the degradation is enhanced using the immobilization method. Bio-carrier promotes...
Article
Full-text available
The rise of pollution due to the dye industries and textile wastes are evolving rapidly every day. The dyes are used in different trade names by the textile industries. The actual chemistry of dye is vague and difficult to understand even today though we are equipped technically. The toxic effects of the dyes and the reasons behind the acute toxici...
Article
Chemical fertilizers are used in modern agricultural practice to increase plant output. They possess anthropogenic compounds which are hazardous, result in poor soil quality, poor crop nutrition and pollutes the water table. Currently, food crops that lack in micro-nutrients (Zn, silicates and Se) can be enriched with micronutrients by use of ferti...
Article
Plastic pollution is threatening the world and the life in it. Cost-effective and eco-friendly treatment is the need of the hour. Treating plastics using chemical methods adds up chemicals into the environment with toxic byproducts. The physical method, a slow and expensive process, is not the better alternative. The process should rely on the envi...
Article
The increase in pollution increased the threat level of living organisms in the environment. Municipal Solid Waste is one of the most important wastes which contribute to polluted sites affecting livelihood. They pollute the water stream, marine environment ecology, soil fertility, and agriculture production. This, in turn, reduces the microflora o...
Article
The recent upsurge of antibiotic-resistant infections has posed to be a serious health concern worldwide. In the present paper, the effect of shape & capping agent on the antibacterial activity (on Skin and Urinary Tract Infection (UTI) causing bacteria) of copper iodide (CuI) particles was probed. CuI synthesized without a capping agent was leaf-l...
Chapter
The development of urbanization and increase in population has lead to the production of synthetic compounds. These compounds are toxic if not treated properly. The process of treatment of these pollutants are widely studied and explored using various methods such as physical, chemical, and biological methods. The biological method of treatment was...
Article
Full-text available
The earthworms are important soil invertebrates and play a crucial role in pedogenesis. The application of pesticides and prolonged exposure to pesticides causes mortality of earthworms apart from profoundly affecting the resident gut microbiome. The microbiome plays a significant effect on the metabolic processes associated with earthworms. The pe...
Article
Full-text available
Azo dyes released by the textile industries cause severe damage to the environment and living organisms. The degradation of azo dyes is widely studied using enzymatic methods. Laccase is a copper-containing enzyme that degrades the azo dyes into less toxic compounds. In this work, the crude laccase enzyme produced by the alkaliphile Pseudomonas men...
Article
Recently efforts have been taken for unravelling mysteries between host-microbe interactions in gut microbiome studies of model organisms through metagenomics. Co-existence and the co-evolution of the microorganisms is the significant cause of the growing antimicrobial menace. There needs a novel approach to develop potential antimicrobials with ca...
Article
Heavy metal pollution has become a serious global threat in recent times which are mostly caused by anthropogenic activities. Bioremediation is cost-effective and eco-friendly technique. In the present study, bioremediation of the co-metal was performed by isolating chromium (Cr) and arsenic (As) resistant bacterial strains and its optimisation of...
Article
Full-text available
The accumulation of recalcitrant azo dyes from untreated textile effluents has adversely impacted the ecosystem. The immense stability in their nature is conferred by the presence of azo bonds (N=N) in their structure. The reduction of this azo bond occurs exclusively under anaerobic conditions giving rise to colorless aromatic amines, which are ca...
Article
Plastic pollution in the current scenario requires a sustainable and eco-friendly treatment process. Single-use plastics accumulate more than recyclable plastic wastes. Low-Density Polyethylene (LDPE) is one among the plastic family with inert characteristics. The traditional method, such as landfilling, develops pollution resistant micro-organisms...
Article
Phytoremediation is one of the biological approaches for remediating textile dyeing effluents. The objective of this study is the use of Pistia stratiotes, an aquatic macrophyte, which was found to degrade the maximum of 83% of mixed azo dye. A phytoreactor was designed and constructed to scale up the process of phytoremediation by P. stratiotes to...
Chapter
The limited availability of fresh water is a global crisis. The growing consumption of fresh water due to anthropogenic activities has taken its toll on available water resources. Unfortunately, water bodies are still used as sinks for waste water from domestic and industrial sources. Azo dyes account for the majority of all dye stuffs, produced be...
Article
Full-text available
Industrial effluents are potential threats to water bodies owing to the chemicals they contain to create pollution. Activated sludge effluents represent an ecosystem of multifaceted and interactive microbial consortia that flourish with different genetic as well as metabolic potential. This study is applied to a nanopore sequencing to understand th...
Article
Full-text available
Heavy metal pollution has become one of the most significant environmental problems globally leading to ecological imbalance. There are many physicochemical and biological methods for the removal of heavy metals. Most of the physicochemical methods are less eco-friendly and less cost-effective, while the biological methods are slow in nature. Recen...
Preprint
Full-text available
Azo dyes are the most widely used dyes in the textile industry due to their stability but their redundancy to degradation is of major concern, particularly to aquatic ecosystems.Unbound dye is let out in the effluent which not only adds to pollution but its toxic metabolites are known to be carcinogenic leading to severe cases of disease. Biologica...
Preprint
Full-text available
Poly(hydroxybutyric acid) (PHB) and other biodegradable polyesters are promising candidates for the development of environment-friendly and completely biodegradable plastics. One of the major drawbacks in the production of PHB is production costs, since it requires large amount of carbon source. This calls for cheaper substrates that can be used as...
Preprint
Azo dyes, released by the textile industries causes severe damage to the environmentandliving organisms. The degradation of azo dyesis widely studied using enzymatic methods. Laccase, is a copper containing enzyme that degrades the azo dyes into less toxic compounds. In this work, Laccase enzyme produced by thealkaliphile Pseudomonas mendocinain th...
Chapter
Environmental pollution has been an irrefutable fact of life for many centuries; but it has become a real problem, since the start of the industrial revolution. Discharge of these toxic compounds without treatment results in serious health risks to humans and the marine ecosystem. Several physical, chemical and biological methods have been employed...
Chapter
The limited availability of fresh water is a global crisis. The growing consumption of fresh water due to anthropogenic activities has taken its toll on available water resources. Unfortunately, water bodies are still used as sinks for waste water from domestic and industrial sources. Azo dyes account for the majority of all dye stuffs, produced be...
Article
Dibenz(a,h)Anthracene (DBahA), classified as a probable human carcinogen (B2) is the first Poly Aromatic Hydrocarbons (PAH) to be chemically purified and used for cancer-based studies. Till date, only 30 papers focus on the bioremediation aspects of DBahA out of more than 200 research publications for each of the other 15 priority PAHs. Thus, the r...
Poster
Full-text available
The pollution in the ecosystem is increasing every day. Dyes contribute a major part in pollution of land and water resources. These dyes are used mainly in textile, food, cosmetics industries etc. Among all dyes, azo dyes contribute the largest proportion in textile industries. Azo dyes contain azo bond (N=N) which is highly resistant to degradati...
Chapter
Environmental pollution has been an irrefutable fact of life for many centuries; but it has become a real problem, since the start of the industrial revolution. Discharge of these toxic compounds without treatment results in serious health risks to humans and the marine ecosystem. Several physical, chemical and biological methods have been employed...
Article
Full-text available
p>The residual tannins discharged from tanning units of the leather industry have an adverse effect on living organism and causes serious environmental pollution. Biological degradation is an important mechanism of organic chemical removal in natural systems owing to its environmental compatibility. But in extreme environment like high salinity of...
Article
Full-text available
PHB is a biodegradable plastic which is becoming an environmentally friendly substitute to the synthetic plastics that are persistent and accumulate in large amounts and are non-degradable. PHB is a class of Polyhydroxyalkanoate which are similar to commercial plastics like polypropylene but with an added advantage of being biodegradable. To overco...
Article
Full-text available
Pollutants from mining and tannery industries adversely affect the natural ecosystem and pose harmful effect to the human beings once it enters the food chain. They also deteriorate the soil fertility and the quality of the ground water. Bioremediation is being viewed as a clean technology for the removal of chromium from tannery effluent. This stu...
Article
Full-text available
p> Objective: To isolate Natural Rubber degrading Bacterial co-cultures from rubber plantation soil and to characterize and identify the organisms by 16s r RNA sequencing. Methods: Cocultures of the bacteria were isolated from the contaminated site by enrichment culture technique. Plate assay method and liquid assay method by using Mineral Salt Me...

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