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Browsing VESASC by Author "Navale, Dinesh"

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    Available Soil Micronutrients Status of Nashik and Kolhapur Districts of Maharashtra using Inductively Coupled Plasma-Optical Emission Spectroscopy
    (Journal of Applicable Chemistry, 2017) Barhate, Vasant; Magodia, Heena; Navale, Dinesh; Gawade, Satyavikas; Kale, Archana
    A study was conducted to quantify the extent of micronutrient deficiency in soils of Nashik and Kolhapur districts of Maharashtra (India). Surface soil samples were collected from farmer’s fields representing 25 villages from selected two taluka’s of Nashik and Kolhapur district of Maharashtra state following sampling procedure of multistage statistical approach. The processed soil samples were analyzed for AB-DTPA extractable Cu, Zn, Mn and Fe using ICP-OES instrument. The result showed that mean value of AB-DTPA Cu, Fe, Mn and Zn were 1.14, 7.68, 3.83 and 2.18 mg/kg, respectively for Nashik district. Similarly, an average value of 1.15, 11.63, 4.10 and 1.54 mg/kg for ABDTPA Cu, Fe, Mn and Zn, respectively were observed for Kolhapur district. The data also revealed that all the soil samples analysed for the mean AB-DTPA extractable Cu were well above the critical limits (>0.2 mg/kg) for both Nashik and Kolhapur district. The AB-DTPA extractable micronutrients were relatively higher in soils of slightly acidic to neutral pH than the soils of near neutral to slightly alkaline pH, indicating the plant available micronutrients were more in acidic soils. The results of the studies have potential practical use in determining site-specific nutrient management practices for sustainable crop production, improving nutrient use efficiency, reducing cost of cultivation, and preventing environmental pollution.
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    Eco-Friendly One Pot Synthesis of Coumarin Derivatives by Pechmann Condensation using Tamarind Juice as a Biocatalyst
    (International Journal of Innovative Science and Research Technology, 2023) Navale, Dinesh; Ranade, Prasanna; Zote, Santosh; Kulal, Dnyaneshwar; Wagh, Swapnil
    An efficient and eco-friendly synthetic method has been established for synthesis of 7-hydroxy-4-methyl coumarin and its derivatives using tamarind juice as a biocatalyst. The condensation reaction of Substituted phenol with ethyl acetoacetate (EAA) successfully carried out using tamarind juice as a green and efficient catalyst at 90°C in aqueous condition. This green biocatalyst has been utilised effectively for pechmann reaction with good yield of product, easy workup and eco-friendly reaction conditions.
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    Study of Water Pollution in Teen Talav, Ashish Talav and Wamanwadi Well in Chembur, South Mumbai Region of Mumbai District
    (Journal of Applicable Chemistry, 2018) Navale, Dinesh; Nalawade, Vighnesh; Ranade, Prasanna; Barhate, Vasant
    Chembur is the south Mumbai region of Mumbai district of the Maharashtra state of India. In this area big industries like RCF, BPCL, HPLC, and Aegis are located. In addition to this many leather processing, steel processing, food processing and small textile industries are well established in this area. There are many lakes and Wells. The drain water coming from this industry directly discharges to the lakes as well as it enters in well through soil percolation. Water of these sources normally uses for laundry and cleaning purposes, therefore it is necessary to measure the water quality of this source. In the said research project physical parameter like pH, Color, Odor, Turbidity and Chemical parameters like acidity/alkalinity hardness COD, BOD and TDS were studied and the result obtained compared with critical limits.