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Lalitha Devi Gottumukkala

Lalitha Devi Gottumukkala
Celignis Limited

PhD

About

29
Publications
26,426
Reads
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Citations
Introduction
My core competency is valorisation of agriculture and industrial waste to fuel and chemicals. Under this, my research expertise is extended to enzymes production, enzyme cocktails development for biofuels, fermentation and anaerobic digestion. Currently, my research is focused on recombinant enzymes production for lignin clean-up, anaerobic digestion biorefinery for fruit juice industry waste and sequential production of bioethanol and biogas from paper industry waste.
Additional affiliations
August 2014 - present
Stellenbosch University
Position
  • PostDoc Position
May 2011 - May 2014
National Institute for Interdisciplinary Science and Technology
Position
  • Senior Researcher
June 2008 - April 2011
National Institute for Interdisciplinary Science and Technology
Position
  • Project fellow
Description
  • NMITLI- CSIR project on conversion of lignocellulosic biomass to bioethanol
Education
June 2005 - June 2007
Acharya Nagarjuna University
Field of study
  • Biotechnology
June 2002 - June 2005
Andhra University, Modern degree college
Field of study
  • Biotechnology, Biochemistry, Chemistry

Publications

Publications (29)
Article
A range of energy fuels (ethanol, char, oil/wax and gas) was produced from fibre waste contaminated with plastic through the application of a fermentation-pyrolysis route. The fibre component was first converted to ethanol by simultaneous saccharification and fermentation (SSF), achieving an ethanol concentration of 39.8 g/L. The residue, enriched...
Chapter
Owing to their versatile properties, many biosurfactants are implicated in the cleanup of oil spills, heavy metals, and organopollutants. A number of biosurfactants have the potential to be used in the household detergent formulation as they are good stain remover and are quite compatible with enzymes and other additives used in detergents. This ch...
Article
The immobilization of β‐fructofuranosidase for short‐chain fructooligosaccharide (scFOS) synthesis holds the potential for a more efficient use of the biocatalyst. However, the choice of carrier and immobilization technique are key to achieving that efficiency. In this study, Calcium alginate (CA), Amberlite IRA 900 (AI900) and Dowex Marathon MSA (...
Article
Six conceptual process scenarios for the production of biobutanol from lignocellulosic biomass through acetone‐butanol‐ethanol (ABE) fermentation, using reported data on process performances, were developed with ASPEN Plus® V8.2 software. The six scenarios covered three fermentation strategies, i.e. batch separate hydrolysis and fermentation (SHF),...
Article
Biobutanol has gained attention as an alternative renewable transportation fuel for its superior fuel properties and widespread applications in chemical industry, primarily as a solvent. Conventional butanol fermentation has drawbacks that include strain degeneration, end-product toxicity, by-product formation, low butanol concentrations and high s...
Article
Paper sludge samples collected from recycling mills exhibited high ash content in the range of 54.59%–65.50% and glucose concentrations between 21.97% and 31.11%. Washing the sludge reduced the total ash content to between 10.7% and 19.31% and increased the concentration of glucose, xylose and lignin. Samples were screened for ethanol production an...
Article
The paper and pulp industry is one of the major industries that generate large amount of solid waste with high moisture content. Numerous opportunities exist for valorisation of waste paper sludge, although this review focuses on primary sludge with high cellulose content. The most mature options for paper sludge valorisation are fermentation, anae...
Article
Paper sludge (PS) from the paper and pulp industry consists primarily of cellulose and ash and has significant potential for ethanol production. Thirty-seven PS samples from 11 South African paper and pulp mills exhibited large variation in chemical composition and resulting ethanol production. Simultaneous saccharification and fermentation (SSF) o...
Chapter
Full-text available
White biotechnology makes use of fermentation technology to produce various primary and secondary metabolites from microorganisms, plants, and animal cells at commercial level. Cosmetic industry has been using a variety of biotechnologically derived compounds in their cosmetic formulations due to their interesting skin- and hair-care functions and...
Chapter
Microbial surfactants are potential replacement for the chemical- or oleo-based surfactants due to their high performance, low ecotoxicity, biodegradability, and low carbon footprints. However, high cost, presence of multiple isomers, and multistep downstream processing are the major challenges in commercialization of biosurfactants. Thanks to adva...
Article
Full-text available
Clostridium sporogenes BE01, a non-acetone forming butanol producer could produce hydrogen and volatile fatty acids (VFAs) during butanol fermentation from rice straw hydrolysate. Bio-electrochemical analysis revealed the changes occurred in redox microenvironment and electron transport mediators during fermentation at different pH and CaCO3 concen...
Article
Full-text available
Clostridium sporogenes BE01, a non-acetone forming butanol producer, can produce hydrogen and volatile fatty acids (VFAs) during butanol fermentation from rice straw hydrolysate. Bio-electrochemical analysis revealed the changes that occurred in the redox microenvironment and electron transport mediators during fermentation at different pH and CaCO...
Article
Full-text available
Growth inhibition kinetics of a novel non-acetone forming butanol producer, Clostridium sporogenes BE01, was studied under varying concentrations of acetic and formic acids in rice straw hydrolysate medium. Both the organic acids were considered as inhibitors as they could inhibit the growth of the bacterium, and the inhibition constants were deter...
Article
Biobutanol from lignocellulosic biomass has gained much attention due to several advantages over bioethanol. Though microbial production of butanol through ABE fermentation is an established technology, the use of lignocellulosic biomass as feedstock presents several challenges. In the present study, biobutanol production from enzymatic hydrolysate...
Chapter
ABE (Acetone-Butanol-Ethanol) fermentations were next only to ethanol fermentations and used to be a major industry until 1960s. Later, biological route for butanol production lost its importance owing to competition from petrochemical route, and today there is a renewed interest in ABE fermentation due to increased concerns over petroleum depletio...
Article
Rice straw is an attractive lignocellulosic material for bioethanol production since it is one of the most abundant renewable resources. It has several characteristics, such as high cellulose and hemicelluloses content that can be readily hydrolyzed into fermentable sugars. But there occur several challenges and limitations in the process of conver...
Article
Biomass feedstock having less competition with food crops are desirable for bio-ethanol production and such resources may not be localized geographically. A distributed production strategy is therefore more suitable for feedstock like water hyacinth with a decentralized availability. In this study, we have demonstrated the suitability of this feeds...

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Projects

Projects (3)
Archived project
Recently, the global market for short-chain fructooligosaccharides (scFOS) and inulooligosaccharides (IOS) has increased due to the rising health awareness and demand for calorie controlled foods. This study conducted process improvements and techno-economic evaluations on the production of scFOS and IOS since they are alternatives to each other and compete in the market space.
Archived project
To make paper industry and food (fruit) processing industry self-sustainable with water reclamation, energy and high value products generation from waste