Papers by Satya Narayan Naik
BioResources
The continuous depletion of forests calls for the astute usage of existing resources. Fungi and t... more The continuous depletion of forests calls for the astute usage of existing resources. Fungi and termites cause serious damage to biomass under storage and service conditions. Various protective treatments with high amounts of toxic chemicals are used by the wood and bamboo industry. Efforts are being made the world over to develop environmentally friendly preservatives for wood and bamboo species. Recent research highlights the potential and effectiveness of traditional practices and procedures, mainly water leaching technique and smoke treatment. Under laboratory conditions, the service life of treated blocks were found to be at a par with commercial chemical preservative treated blocks. Various plant extracts and oil-based formulations, such as organic acids, essential oils, and eco-friendly chemical-based preservatives, are in the stage of development. The bio-efficacy of such preservatives is measured in terms of the improvement in resistance to fungi and termites. However, much...
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Handbook of Solid Waste Management
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Clean Technologies and Environmental Policy, 2020
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Journal of Food Processing and Preservation, 2018
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Bioresource Technology, 2020
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Journal of Food Science and Technology, 2018
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Algal Biofuels, 2017
In this chapter, modern approaches of synthetic micro-algal ecology have been focused to reach th... more In this chapter, modern approaches of synthetic micro-algal ecology have been focused to reach the industrial scale reality of biofuel feedstock production. Diversity of micro-algal species, screening for novel inherent traits, common nutrient requirements and growth complementarities, selection of a robust species for consortia development, physiology of monocultures, role of stoichiometric growth modeling in channelizing the metabolic flux for the cumulative production of high quality biomass from synthetic microalgal consortia, and scale up of the process for desirable production of high quality biomass are briefly described. To get the reality that how the changes in the community structure can make changes in the cumulative physiology and production of primary metabolites of biofuel interest has been explained in detail.
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Journal of scientific & industrial research, 2003
Résumé/Abstract Biodiesel has become more attractive since one decade because of limited fossil r... more Résumé/Abstract Biodiesel has become more attractive since one decade because of limited fossil resources and increasing demand for diesel. Biodiesel derived from vegetable oils/animal fats triglycerides is a worthy replacement for the hydrocarbon based diesel fuels, because of its multiple benefits, and it can be used in diesel engines without any modification in the existing engines. Transesterification is the most commonly used method for the production of biodiesel from vegetable oils and animal fats in presence of catalytic ...
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J. Sci. Indust. Res, Feb 1, 2005
Abstract: Essential oils from Cedrus deodara, Eucalyptus citriodora, Cymbopogon flexuous, C. wint... more Abstract: Essential oils from Cedrus deodara, Eucalyptus citriodora, Cymbopogon flexuous, C. winterianus, Pinus roxburghii, Syzygium aromaticum and Tagetes minuta were evaluated for bioactivity against the adults of Culex quinquefasciatus and Aedes aegypti. Serial dilutions of the oils were made in deodorized kerosene to obtain a range of concentrations (0.5-10%) and the adults were exposed to the vapour of the different oils for 1h in WHO kits for sensitivity testing. C. winterianus and S. aromaticum oils were equi effective and found ...
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Application of Microalgae in Wastewater Treatment, 2019
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Indian Journal of Natural Products and Resources, 2019
Bixin (9Z-6, 6’-diapocarotene-6, 6’-dioate), one of the carotenoid-based colour extracted from th... more Bixin (9Z-6, 6’-diapocarotene-6, 6’-dioate), one of the carotenoid-based colour extracted from the seeds of the tropical tree Bixa orellana L . , used primarily as a natural colouring agent in the food industry. In the present study, different solvents were used in both hot and cold conditions to extract bixin from B. orellana seeds, collected from two different geographical locations (Chhattisgarh and Uttaranchal) of India. The crude annatto extract was characterized by Thin Layer Chromatography (TLC). The major component, bixin was identified by TLC and further isolated from the crude extract by Preparative TLC (PTLC) method with a purity of 80%. Analysis of purified bixin contents isolated from samples was quantified by both High-Performance Liquid Chromatography (HPLC) and spectrophotometer. The results obtained from both the analytical techniques were comparable and lead to the conclusion that the highest amount of bixin was obtained from Chhattisgarh variety of annatto seed (2...
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Environmental Chemistry Letters, 2021
The applications of green chemistry and industrial bioprocessing are becoming more popular to add... more The applications of green chemistry and industrial bioprocessing are becoming more popular to address concerns of pollution, climate change, global warming, circular bioeconomy, sustainable development goals and energy security. Both biological and thermochemical routes can play vital roles in transforming waste lignocellulosic biomass to high-value bioproducts. Lignocellulosic biomass contains essential building blocks that could be tapped to generate biofuels, biochemicals and biomaterials to replace petroleum-derived fuels and chemicals. Besides containing extractives and ash, lignocellulosic feedstocks are made up of cellulose, hemicellulose and lignin typically in the ranges of 35–55 wt%, 20–40 wt% and 10–25 wt%, respectively. Catalytic thermochemical approaches are effective for biomass conversion with a significant yield of various platform chemicals, such as furfural, 5-hydroxymethylfurfural, levulinic acid and other furan or non-furan-based chemicals. These chemicals play a crucial part in the synthesis of different fuel-based materials, which can successfully replace petroleum-based chemicals or fuels. Lignocellulosic biomass and their derived monomeric sugars can be catalytically converted into various platform chemicals using different homogeneous and heterogeneous catalysts. In this review paper, we have highlighted some promising catalysts such as mineral acids, mesoporous silica materials, zeolites, metal–organic frameworks, metal oxides and ionic liquids used in biorefining to generate biochemicals. We have also reviewed a few pieces of notable literature presenting the catalytic conversion of cellulose, hemicellulose, cellobiose, glucose, fructose and xylose into various high-value chemicals.
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Journal of Horticultural Research, 2017
Four leafy vegetable species, spinach (Spinacia oleracea), amaranthus (Amaranthus viridis), fenu-... more Four leafy vegetable species, spinach (Spinacia oleracea), amaranthus (Amaranthus viridis), fenu-greek (Trigonella foenum-graecum) and bathua (Chenopodium album), were extracted with three different solvents (80% ethanol, 80% acetone and water) for maximum recovery of phenol and antioxidant compounds in the extract. The results of extraction were compared with extraction from moringa (Moringa oleifera) leaves that is known as a very rich source of antioxidants. The study showed that, it is very difficult to justify a single solvent for extraction of antioxidant compounds from different plants. Results from different solvents used for extracting the bioactive compounds mostly depend on the type of compound extracted (polar/medium polar/non-polar) present in leafy matrices. Here, 80% acetone extract showed highest total phenol content in moringa leaves but the overall antioxidant activity in the leaves of four vegetables was observed to be better after extraction with 80% ethanol. Nev...
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Second and Third Generation of Feedstocks, 2019
Abstract To overcome the current energy crisis and deterioration of environmental conditions, pro... more Abstract To overcome the current energy crisis and deterioration of environmental conditions, production of fuel from sustainable and renewable sources is the major goal for an energy-demanding society. Agricultural wastes are a major fraction (1.5×1011 tons/annum) of lignocellulose biomass and this resource can be utilized as feedstock for generation of biofuels (bioethanol, biobutanol, biogas, biohydrogen, and biodiesel). Agricultural wastes do not only include residues from cultivation but also waste generated from processing of agro products, managing livestock, and distribution of fruits and vegetables. This chapter outlines the classification of agricultural wastes, its compositions, and different processing and biofuel production routes. In the chapter a major emphasis is given to the biochemical routes for biofuel production.
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Waste Management, 2021
Plastic waste is a serious menace to the world due to its fastest growth rate of ~ 5% per annum a... more Plastic waste is a serious menace to the world due to its fastest growth rate of ~ 5% per annum and requires efficient technologies for its safe disposal. Plastic liquefaction producing liquid hydrocarbons is an effective way to dispose waste plastics in an eco-friendly manner. In present study, high quality liquid fuel is produced from waste plastics via two-step bottom-up cracking approach. A comparative analysis of liquid products obtained in thermal and catalytic cracking performed at relatively lower temperature (350 °C) with minimal catalyst to plastic feed ratio (1:30) has been studied. Catalytic cracking via two-step bottom-up route provides higher fraction of fuel range hydrocarbons in comparison to the thermal cracking. Catalytic cracking is performed using two different catalysts; HZSM-5 and 5%Fe/HZSM-5 in which later results in higher liquid yield (76 wt%) than former (60 wt%) having comparable fuel characteristics. GC-MS results confirm that liquid product obtained via catalytic cracking contains higher fraction of fuel range hydrocarbons (C6-C20); 66.39% for 5%Fe/HZSM-5 and 47.33% for HZSM-5 which is comparatively higher than that obtained in thermal cracking (27.39%). FT-IR, 1H and 13C NMR spectroscopic studies confirm that liquid hydrocarbons obtained via catalytic cracking have comparable chemical characteristics with fuel range hydrocarbons. Physiochemical properties of catalysts are studied using XRD, XPS, BET, FE-SEM, HR-TEM, NH3-TPD and H2-TPR techniques and correlated with activity results. Analysis of commercial diesel fuel is also incorporated to compare the fuel characteristics of liquid products.
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Scientific Reports, 2020
The use pesticide is one of the indispensable means to combat mosquito borne diseases. However, t... more The use pesticide is one of the indispensable means to combat mosquito borne diseases. However, the repeated use of synthetic pesticides has induced resistance in the vector pest along with undesirable impact on the environment. The biodegradability, non-persistent and user’s safety are the root cause to prefer plant-derived pesticides to synthetic ones. The botanical based pesticides tend to degrade rapidly under the influence of several environmental factors. For the feasible application as pesticides, the plant products are formulated either as liquid or as purely solid. Despite well-established formulation technology in pesticide delivery, their handling trouble is being ignored. There is difficulty in liquid formulation of pesticide products, as they are prone to splashing and spillage, resulting in contamination, wastage and direct exposure to skin; whereas a solid formulation tends to produce dust. In the present work, cedarwood (Cedrus deodara) essential oil embedded pectin ...
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Culture, Agriculture, Food and Environment, 2017
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European Journal of Wood and Wood Products, 2016
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Handbook of Plant-Based Biofuels, 2008
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Journal of Food Research, 2014
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Papers by Satya Narayan Naik