Nilesh V Pawar

• M. Sc, GATE, Ph. D.
• Professor (Assistant) at The New College Kolhapur

A new species Ceropegia shivrayiana A. P. Jangam, Kambale & N. V. Pawar, is described and illustrated here from Vishalgad fort in Kolhapur district of Maharashtra state, India. This new species is similar to Ceropegia lawii Hooker f., but differs in having a climbing habit, hairy peduncles, obovate corolla cage with reflexed corolla lobes

Non-biodegradable dyes, potentially contaminate the water and poses serious risk to the environment. So their removal requires alarming attention. The formation of CuO-bentonite bead and their dye removal application is the main focus of the current investigation. X-ray diffraction spectroscopy (XRD), Field emission scanning electron microscopy (FE...

Growing industrialization is contributing to the worsening shortage of potable water in society. Consequently, wastewater treatment and dye degradation become the foremost aim to overcome this problem. Magnetic nanoparticles (MNPs) emerged as an efficient tool to overcome the problem of wastewater treatment. Easy recovery of the MNPs reduces the op...

The contamination of water resources by emerging contaminants, such as heavy metals and textile effluents, poses significant ecological and human health risks. Conventional effluent treatment plants may not effectively degrade all types of pollutants, resulting in the contamination of natural water resources. Photocatalysis, specifically the photo-...

Forts are one of the key features of Northern Western Ghats and provide a diverse range of habitats due to their unique topography and act as shelter places for native and endemic flora. They play important role in their respective ecosystems as they protect and isolate flora and fauna resulting into home for numerous endemic species. Floristics of...

The present work reports the facile green synthesis of Fe3O4 magnetic nanoparticles (MNPs) and their Fenton and photo-Fenton catalytic activity for reduction reactions. The glucose-mediated MNPs exhibit spherical morphology with an average diameter of 6.3 ± 1.1 nm. The catalytic activity of MNPs evaluated for Fenton and the photo-Fenton reactions r...

Innovative development in the realm of nanotechnology is the ecologically friendly synthesis of nanoparticles. Due to its ease of use and environmental friendliness, plant-mediated biological production of nanoparticles has gained popularity recently. This study used aqueous extracts to biosynthesize stable, silver nanoparticles in a straightforwar...

The present study deals with Tree checklist of Mudagad fort, one of the 13 forts present in Kolhapur district, Maharashtra. It gives information about Tree species composition present on Mudagad fort, along with note on there Endemism.

Seed germination is a fundamental process involving series of biochemical changes contributing to successful growth and development of new plant. Changes in the content observed during germination reflect developmental stages. Analyses of their behavior and profiles could provide insights into different strategies for regulating metabolism. In pres...

The Gardenia, traditional medicinal plant used from ancient time to increase appetite and other medicinal uses has been employed for the synthesis of superparamagnetic α-Fe2O3 nanoparticles (NPs). The plant extracts unveiled its bifunctional nature through the reducing ferric ions by phenolic groups and capping nature through the -OH bonding over t...

Zingiber zerumbet (L.) Roscoe ex Sm, an aromatic rhizomatous herb widely used in food, beverages, medicine and for ornamental purposes. It was considered as spice ginger until the discovery of zerumbone (a monocyclic sesquiterpene), curcuminoids (a group of polyphenolic compounds) and other bioactive molecules. These compounds have great demand due...

The effect of pectinase at various concentrations of 0.5, 1.0, and 1.5% respectively and combination of pectinase (0.5%) + gelatin (0.5%) on enzymatic liquefaction of mango pulp, its physico-chemical characteristics and sensory qualities was investigated. It was observed that the pectinase and gelatin each at 0.5% concentration significantly improv...

A systematic search of some phytochemicals in Delphinium malabaricum will be undertaken to evaluate the therapeutic quality of D. malabaricum. The populations of D. malabaricum were subjected to analysis of alkaloids by Reversed phase HPLC technique. Among the various alkaloids present in Delphinium species methyllycaconitine is a principle alkaloi...

Relation between 6-gingerol content and antioxidant activity in in vitro grown cultures of ginger was studied. Reverse phase HPLC analysis revealed that rhizome derived callus culture and micropropagated plants produced lowest amount of 6-gingerol compare to conventionally grown plants. The antioxidant activity of extracts was determined using 1,1-...

The present investigation comprises the data on frequency percentage of chlorophyll mutations in the different doses of gamma rays coupled with EMS in ginger. Different mutation frequencies and width of mutation spectra were induced under the action of different concentrations of the two applied mutagens. The spectrums of chlorophyll mutations (alb...

To study and compare seasonal variation in camptothecin (CPT) content from bark samples of Nothapodytes nimmoniana obtained from geographically and climatologically isolated populations. A standard High Performance Liquid Chromatography methodology was used to analyze and quantify CPT from bark samples of N. nimmoniana. Sample collected from Amboli...

Ipomoea ochracea (Lindl.) G. Don (Convolvulaceae), an African species is reported here for the first time from the Western Ghats of India. A detailed description, illustration and relevant notes are provided for easy iden-tification.

Reliable and reproducible techniques for identification and quantification of amino acids usually require derivatization. However, techniques such as LC-MS/MS may perhaps sideline the derivatization with significant accuracy. Understanding the interaction between free amino acids and several physiological processes apparently requires that the pool...

We report the ethanol sensing behavior of nanostructured CdSnO3 thin film preparation by spray pyrolysis at a substrate temperature of 350 °C. As prepared thin films has been analyzed by X-Ray diffraction study, field emission scanning electron microscopy, transmission electron microscopy and UV/VIS absorption spectroscopy, These studies infer the...

The attempts are made in the present investigation to know the effect of various chemical preservatives on shelf life of Kesar mango pulp. The uniformly ripened Kesar mango pulp was pasteurized at 82 ± 2°C temperature for 30 minutes and acidity was adjusted to 1% with citric acid and preserved by chemical additives such as sodium benzoate, potassiu...

Thick films of AR Grade nano Fe 2 O 3 material with n-type semiconducting properties were prepared and tested for their gas sensing performances. Thick films of the materials were prepared by screen printing technique. The gas sensing performance was studied using static gas sensing system. The material was tested for various gases such as CO, CO 2...

Strontium titanate (SrTiO3) nanopowder has been synthesized through a sol-gel-hydrothermal method. The X-ray diffraction studies of SrTiO 3 nanopowder have shown that the as-prepared powder was single phase, crystalline, and has a cubic perovskite structure (ABO 3) with a lattice constant a = 3.903 Å. The particle size calculated from FWHM was ~22...

Diversity needs to be "conserved through use." Owing to the global need, the present study includes two underutilized berries, Carissa carandus and Eleagnus conferta, to explore their potential as supplementary food by evaluating their antioxidant activity and approximate chemical composition. Berries of E. conferta are a richer source of carotene,...

Cr doped tin oxide (CTO) thin films were prepared by spray pyrolysis technique (SPT). The hollow microspheres with a high Cr incorporation (10 at. %) was found to posses excellent sensitivity, selectivity and rapid response to the presence of ethanol vapors at low temperature. X-ray diffraction, UV, scanning electron microscopy and energy dispersiv...

In the present investigation aim to reduce the beany flavor of soymilk and develop fruit flavored soy beverage. The RTS (Ready-to-serve) beverage was prepared by blending soymilk with mango pulp in different combinations such as 80:20,70:30, 60:40 and 50:50 and analyzed for various physico-chemical and sensory characteristics for its overall accept...

Whey and juice of mango (Cv. Kesar) were utilized at various combinations (70:30, 75:25 and 80:20) for preparation of nutritious ready-to-serve (RTS) beverages and evaluated for various physico-chemicals and sensory attributes during storage. The study revealed that the RTS beverage prepared with 70% whey and 30% mango juice scored maximum for almo...

The pasteurized mango pulp was subjected to different pre-decided treatments and packed in 500 ml capacity glass bottles. The following treatments were finalized on the basis of efficacy of chemical preservatives. T 0 = Control (without any chemical preservatives), T 1 = 0.2% sodium benzoate, T 2 = 0.2% potassium meta-bisulphite (KMS), T 3 = 0.2% p...

Simple, cost effective, quick and sustainable technique was investigated for determining Betulinic acid (BA) from samples of Ancistrocladus heyneanus. The methods comprised of continuous shaking, Soxhlet, ultra sonication and microwave assisted extraction techniques. RP-HPLC technique was used to quantify BA from varied samples and confirmation of...

Thick films of AR Grade nano Fe2O3 material with n type semiconducting properties were prepared and tested for their gas sensing performances. Thick films of the materials were prepared by screen printing technique. The gas sensing performance was studied using static gas sensing system. The material was tested for various gases such as CO, CO2, NH...

The aim of this work was to assess the antioxidant capacity and phenolic content from the rhizomes of 12 ginger cultivars from different agro climatic zones of India. The quantities of phenolic compound 6-gingerol was determined with reverse phase high performance liquid chromatography (RP-HPLC) which was ranging from 0.1% to 0.2%. The antioxidant...

In this work, SnO2 thin films were deposited onto alumina substrates at 350°C by spray pyrolysis technique. The films were studied after annealing in air at temperatures 550°C, 750°C and 950°C for 30 min. The films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and optical absorption spectroscopy technique. The gr...

Thick films of AR grade Fe2O3 were prepared by screen-printing technique. The gas sensing performances of thick films were tested for various gases. It showed maximum response to H2S gas at 300 o C for 200ppm.The films were surface modified by dipping them in a solution of 0.1M zinc acetate for different intervals of time. The modified Fe2O3 films...

The phenotypic response of Delphinium malabaricum to chemical mutagens (EMS and SA) and physical mutagen (gamma rays) were studied. It was observed that D. malabaricum manifested specifi c reactions to the treatments with EMS, SA and gamma rays. Different mutation frequencies and width of mutation spectra were induced under the action of different...

The phenotypic response of Delphinium malabaricum to chemical mutagens (EMS and SA) and physical mutagen (gamma rays) were studied. It was observed that D. malabaricum manifested specifi c reactions to the treatments with EMS, SA and gamma rays. Different mutation frequencies and width of mutation spectra were induced under the action of different...

The purpose of this study was to evaluate the antioxidant capacity (AC), total phenolic content (TPC) and total flavonoid content (TFC) in various extracts of different plant parts (root, stem and leaves) of Delphinium malabaricum in an effort to validate its medicinal potential. The results revealed that total phenolics and flavonoid contents show...

Custard apple (Annona squamosa L.) fruit pulp has got many food applications as flavour enhancing ingredient in various desserts because of its delicious taste and flavour. However, the pulp has limited shelf life due to polyphenol oxidase activity which causes discoloration or browning that result in deterioration of commercial quality of pulp. Br...

The present investigation comprises the data on frequency percentage of chlorophyll mutations in the different doses of gamma rays coupled with EMS in ginger. Different mutation frequencies and width of mutation spectra were induced under the action of different concentrations of the two applied mutagens. The spectrums of chlorophyll mutations (alb...

Polyphenol oxidase (PPO) activity profile of various morphological parts of grape was considered as an index to specify its suitability to process in the form of raisins. In the present investigation the presence of residual PPO in different morphological parts of grapes and the effects of pH, temperature and storage conditions on the PPO activity...

The present investigation comprises the data on frequency percentage of chlorophyll mutations in the different doses of gamma rays coupled with EMS in ginger. Different mutation frequencies and width of mutation spectra were induced under the action of different concentrations of the two applied mutagens. The spectrums of chlorophyll mutations (alb...

Present investigation deals with RP-HPLC analysis of 6-gingerol from rhizome of ginger treated with EMS at different concentrations. The concentration levels were 0.10, 0.15, 0.20 and 0.25% for EMS 8 hour treatment and 0.30, 0.40, 0.50 and 0.60% for 4 hour treatment. The antioxidant activity of extracts were assessed by DPPH radical scavenging meth...

Seasonal discrepancy in the antioxidant potential from bark of Nothapodytes nimmoniana was evaluated using two different methods (DPPH and FRAP) and were related to total phenolic content as well as flavonoid content. Higher yield of phenolic and flavonoid were observed during summer (May) similarly, the antioxidant activities (DPPH & FRAP) also we...

Strontium Titanate (SrTiO3 (ST)) was prepared mechanochemically from Sr(OH)2 and TiO2. XRD confirms the Perovskite phase of material. Thick films of ST were prepared by screen- printing technique. The gas sensing performances of thick films were tested for various gases. It showed maximum sensitivity to CO gas at 350oC for 100 ppm gas concentration...

Zingiber officinale Rosc., belonging to the Zingiberaceae family, is medicinally important. It is commonly known as ginger and has been extensively cultivated for many centuries for use as a spice and traditional medicine in India. During a survey in September of 2007, leaves of Z. officinale showed a necrotic leaf spot disease on a plant growing i...

Barium Strontium Titanate (BST-(Ba0.87Sr0.13)TiO3) ceramic powder was prepared by mechanochemical process. The thick films of different thicknesses of BST were prepared by screen-printing technique and gas-sensing performance of these films was tested for various gases. The films showed highest response and selectivity to ammonia gas. The pure BST...

Ancistrocladus heyneanus Wall. ex Grah. (Ancistrocladaceae), an endemic Indian liana producing napthylisoquinoline alkaloids, was successfully multiplied in vitro through embryo culture. Attempt was also made to study habit, habitat, regeneration and phenology. Micropropagation in Ancistrocladus has been limited due to the leaching of phenolics, wh...

Polyphenol oxidase (PPO) activity profile of various anatomical parts of grape was considered as an index to specify its suitability to process it in the form of raisins. The activity of residual PPO enzyme interferes with the change in color, external appearance and deterioration of raisin quality. The intensity of browning responsible for discolo...

Genus Delphinium L. with about 320 species, distributed in North temperate regions of the world is represented by about 24 species in India, mainly found in Himalayan regions. Delphinium malabaricum (Huth) Munz is the only rare endemic species of the genus Delphinium restricted to Northern Western Ghats of peninsular India. It has medium-sized viol...