Ranjan Pradhan

Ranjan Pradhan
University of Guelph | UOGuelph · School of Engineering

PhD, CHA

About

42
Publications
15,748
Reads
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263
Citations
Additional affiliations
July 2015 - present
University of Guelph
Position
  • Professor
June 2010 - November 2015
C. V. Raman College of Engineering
Position
  • Head of Faculty
October 2008 - May 2010
University of Guelph
Position
  • Research Associate
Description
  • Post Doctoral Research on Compostability, Carbon Sequestration and Bioprocessing
Education
July 1987 - June 1990
Gujarat University
Field of study
  • Microbiology

Publications

Publications (42)
Preprint
Full-text available
Bioprospects of corn distillers solubles containing a unique thermally treated blend of corn and yeast from ethanol industries were evaluated. This includes alcalase hydrolysis optimization of protein concentrate, measurement of antioxidant activities, and peptide analysis. Response surface methodology (RSM) computed optimum values of enzyme: subst...
Article
Full-text available
The corn crop biomass (CB) is widely used as a feedstock for biochemicals such as lactic acid, succinic acid, citric acid, xanthan gum, and biofuels likely bioethanol, butanol, and biogas. Since CB provides a resistive structure for enzymatic and microbial attack, ultrasonic treatment can assist to break the recalcitrance structure. Several techniq...
Article
Full-text available
Plant-based protein concentrate (PC) was extracted from under-utilized corn distillers solubles comprising a distinctive heat-treated blend of corn and yeast proteins. Enzymolysis of PC with alcalase generated protein hydrolysate (PH) containing angiotensin converting enzyme (ACE) inhibitory peptides. A novel kinetic model is developed to elucidate...
Article
Full-text available
The bioprospects of condensed corn distillers solubles (CCDS) from novel selective milling technology was investigated using a modified lab-scale separation. The valued-added products such as mineral fraction (MF), protein fraction (PF), and solvent-extracted fraction (SEF) were obtained. Including characterization of fractions, the enzymatic hydro...
Article
Full-text available
Corn wet distillers' fiber (corn fiber) is a byproduct of the corn-ethanol production process, with high potential as a precursor for activated carbon due to its moderate nitrogen content and availability. However, there has been limited investigation into activated carbons from the corn fiber. In this work, we produce activated carbons from the co...
Chapter
Full-text available
Numerous types of adsorbents have been studied and used in industrial scale during upgradation of biogas by employing pressure swing adsorption. This chapter provides an insight into the working principle, efficiency, and energy consumption of this method in comparison with other processes. The most recent advancement includes the addition of subse...
Article
Full-text available
Biomass for activated carbon production has had been gaining interest in a wide variety of applications such as water filtration, gas adsorption, and electrochemical devices as a renewable carbon source while meeting desired porosity, surface area, conductivity, and stability requirements. Activated carbon production has been extensively investigat...
Article
Corn Wet Distillers' Fibre (Corn Fibre) and Corn Condensed Distillers' Solubles (CDS) are by-products of the corn-ethanol production process with limited investigation of their valorization potential available in the literature. In this work, we perform hydrothermal carbonization (HTC) on Corn Fibre and CDS at reaction temperatures ranging from 180...
Article
Full-text available
The effects of enzymes like alcalase, papain and trypsin generates protein hydrolysates (PH-Ala, PH-Pap and PH-Tryp, respectively) from protein fraction (PF) of corn distillers solubles, were evaluated nitrogenous pyrolysate compounds (PyCs). The differences in absorbance values of amides (I, II, II, A, and B) were distinct to type of enzymatic tre...
Article
Full-text available
Comparative measurement of electricity produced by inherent eletrogens in benthic mud that were maintained at different operating pH using microbial fuel cell was studied. A two-chamber microbial fuel cell model with proton exchange membrane was adopted for this study applying electrogene sourced from benthic mud collected from local lake and pond...
Article
Full-text available
Present study evaluates the analytical pyrolysis to unravel the pyrolysate compounds (PyCs), protein & glycosylation indicators in a protein fraction (PF) from condensed corn distillers solubles (CCDS) of novel selective milling technology. Besides, quadratic and linear correlations using protein content (%) by Dumas method, toluene signature PyC,...
Article
The application of black (spent) liquors for bio-carbon production is a promising method to add value to this industrial renewable waste stream. Further valorization by conversion to higher grade bio-carbon products may significantly enhance their adoption to various industrial uses. To increase the purity of the bio-carbon by selective removal of...
Article
Black liquor, an industrial waste, also generally called spent liquor is a promising feedstock for production of bio-carbon due to its high lignin and energy contents. Mild processing conditions and sustainable resource utilization can drive commercial utilization of this industrial waste. A novel oxidative procedure using hydrogen peroxide as a gr...
Article
Black liquor (spent cooking liquor) is one of the major byproducts of pulp and paper manufacturing. Black liquor contains 10–50% lignin, which is the main organic matter found within that liquor. Different types of black liquors are obtained as per the type of feedstock, pulping process and cooking method adopted by industries. In recent years, ind...
Article
The present research work is an attempt to focus on thermal kinetics of raw and torrefied hybrid poplar wood (Populus nigra – NM6). The results of the experiment under the optimal condition based on mass and energy yield, which was found to be 270 °C, were evaluated for physiochemical and kinetic characteristics. Comparative pyrolysis of raw and to...
Article
Full-text available
Thermal kinetics of Sal seeds during pyrolysis process was investigated as feedstocks for chemical, material, and bioenergy industries. The physicochemical properties of the seeds were examined. Results showed that Sal seed can be characterized as high calorific values, low ash, and high volatile content biomass to suit pyrolysis applications. Kine...
Chapter
Microalgae with its numerous applications such as food, dietary supplement, fuels, and materials in environmental biotechnology are being regarded as a priority area for further investigations. National Aluminum Company (NALCO) in India uses coal as source of energy in aluminum production. A pilot project was undertaken by NALCO for carbon capture...
Article
Characterization of neutral sulphite semi-chemical black liquor (NSSCBL), sampled from paper manufacturing process that uses recycled fibers as primary feedstock, was carried out for potential bioenergy and biomaterial applications. Physico-chemical characteristics including inorganic elements content, thermogravimetric analysis, GC/MS, and FT-IR a...
Article
Full-text available
Ethanol and water combines to form azeotrope due to which it becomes very difficult to separate them by ordinary fractionation. Special distillation methods can exploit for separation of the azeotropes into pure components such as pressure-swing distillation, by using separating agent as an entrainer added to the mixture for homoazeotropic distilla...
Research
Full-text available
The national level seminar is dedicated to dissemination of advanced knowledge in the area of microalgae based carbon sequestration from flue gas and further bio-refinery technologies for utilizing the biomass.
Article
Full-text available
Torrefaction is a thermochemical conversion technique to improve the fuel properties of lignocellulosic biomass by treating at temperature 200 ℃-300 ℃ in the minimum oxygen environment for a reasonable residence time. In this study, thermal decomposition and thermal activities of miscanthus and wheat straw during the torrefaction at 200 ℃, 275 ℃, a...
Article
Full-text available
Algal Biomass procured from carbon sequestration plant of NALCO at Angul, India, was evaluated for its possible application as an industrial adsorbent. The algal biomass (AB) and carbonized algal biomass (CAB) were taken for the adsorption characteristics. A comparative study of adsorption capacity with commercial activated charcoal (CAC) has been...
Article
Full-text available
Herbs and farm produce are stored after harvest for different durations and have the potential to support microbial growth on them which can lead to shorter shelf life and enhancing food safety issues due to pathogens and allergens. The present study investigated the native microbial loads and aflatoxin contents on Stevia rebaudiana Bertoni leaf sa...
Article
Full-text available
Energy crisis and climate change demands green, efficient, carbon-neutral energy source to replace fossil fuel, Biogas, generated by bio-methanation of organic materials, contribute to sustainable, reliable and renewable energy. In this report, biomethanation process from cow dung partially substituted with rice, dal and water were studied in labor...
Article
Full-text available
Energy crisis and climate change demands green, efficient, carbon-neutral energy source to replace fossil fuel, Biogas, generated by bio-methanation of organic materials, contribute to sustainable, reliable and renewable energy. In this report, biomethanation process from cow dung partially substituted with rice, dal and water were studied in labor...
Book
Full-text available
This edition of the book maintains the right blend of theory and practice modules. Book presents simplified and methodical procedures to develop student's understanding of the design, analysis and applications of process automation. The compilation of these technical information are valuable and are ideal for engineering students of chemical, elect...
Article
Full-text available
The preparation of biodiesel from Karanja Oil using base catalyzed trans-esterification has been conducted and effect of variation of different process parameters like temperature, catalyst to oil ratio, catalyst concentration, effect of time on acid catalyzed and base catalyzed reaction.The conversion of karanja oil was found to be 99.5% under the...
Conference Paper
Full-text available
ABSTRACT: Reducing emission of Green House Gases (GHG), the main cause for global warming, is a critical environmental issue confronting the world community today. But it is also intricately linked to the process of development of our country and we would not like to compromise on our developmental goals. Microalgae being the most efficient photosy...
Article
Full-text available
The present investigation aims to develop thermally stable electromagnetic interference shielding materials from polysulfone (PSU) nanocomposites filled with multiwall carbon nanotubes (MWCNT) or carbon nanofibers (CNF). The effect of filler type and their structural features such as aspect ratio (length/diameter) and wall integrity on the differen...
Conference Paper
Full-text available
Polyimide (PI) nanocomposites were prepared by in-situ polymerization process using multiwall carbon nanotubes (MWCNT) and carbon nanofibers (CNFs) as conducting fillers. A significant enhancement in mechanical, thermal, and electrical properties of PI matrix was observed with the addition of MWCNT/CNF. DC conductivity of PI matrix was increased by...
Conference Paper
Full-text available
For the past hundred years or more, pressures on land were mostly due to the onset of the Industrial Revolution, increase in population and urbanization. During that period, maximum amount of land conversion was from the forestry sector to agricultural sector, i.e. from higher biomass category to lower biomass category. With the right system, this...
Conference Paper
Full-text available
In India the safety and quality of foods is becoming a matter of increasing concern. Information is more readily available to consumers through the mass media and they are considerably more aware of existing and potential risks from pesticides, food poisoning and a poor diet. The impact of this greater awareness can be seen with consumers preferrin...
Conference Paper
Full-text available
Cultivation of micro algae was taken-up at the captive power plant of NALCO, located at Angul, India at a pilot plant trial. The flue gas form the furnace containing about 12 % CO2 were treated and used as the major carbon source for the algae. The algae were harvested by separation techniques for suspended solids and dried. The dried biomass were...
Conference Paper
Full-text available
One of the major challenges to global sustainability is unbalanced carbon cycle due to accumulation of atmospheric carbon dioxide. Globally, thermal power plants are major emitters of CO2 as a component of flue gas. Available technologies for CO2 removal/capture include physicochemical absorbents, injection into deep oceans and geological formation...
Conference Paper
Full-text available
Solarcookinghaslongbeenpresentedasaninterestingsolutiontofightdwindlingfuelresources.HoweverthetechnologyhasnotbecomepopularatthehouseholdlevelinIndiabecauseofnon–consistentsolarradiationandtheresultcookingduration.Ahandytoolthatcansuggestexpectedcookingdurationforagivenradiationwilleliminatebothersomeandrepeatedphysicalcookingproceduresofthecooked...
Article
Full-text available
Biodegradable plastic composites designed with various natural and biobased material can potentially satisfy biodegradability specifications as per ASTM, CEN, ISO and OECD guidelines. A laboratory scale simulated aerobic composting facility (as per ASTM D 5338) was designed and utilized to determine and evaluate the extent of degradation of various...
Article
A laboratory scale simulated composting facility (as per ASTM D 5338) was designed and utilized to determine and evaluate the extent of degradation of polylactic acid (PLA), untreated wheat and soy straw and injection moulded composites of PLA-wheat straw (70:30) and PLA-soy straw (70:30). The outcomes of the study revealed the suitability of the t...
Article
A modified bag retting procedure was evaluated for treatment of soy straw using the normal microbial flora resident on the material harvested from the field straw. The resultant treated fibers were then characterized for structural changes by optical microscopy and scanning electron microscopy, FTIR, XRD and TGA analysis, and compared with untreate...
Article
Full-text available
D-phenyl glycine and D-P-hydroxy phenyl glycine (D-P-HPG) are valuable synthons for the production of semisynthetic penicillin and cephalosporins such as ampicillin and amoxicillin. DL-5-substituted hydantoins are the starting materials for the chemical synthesis of DL-amino acids. However, this chemical process is cumbersome as the chemical hydrol...

Questions

Question (1)
Question
I am irradiating leaves of Stevia rebaudiana Bertoni. (Family-Asteraceae) with Electron Beam for enhancing its shelf life. Though I am focusing on reducing microbial load, information on the known dose limits for preventing destruction of some known antioxidants or glycosides would be helpful.

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Projects

Projects (9)
Project
Application of irradiation for food safety and preservation