Browsing by Author "Manoj Kumar Solanki"

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Advancement of Abiotic Stresses for Microalgal Lipid Production and Its Bioprospecting into Sustainable Biofuels
(Multidisciplinary Digital Publishing Institute (MDPI), 2023) Rahul Prasad Singh; Priya Yadav; Indrajeet Kumar; Manoj Kumar Solanki; Rajib Roychowdhury; Ajay Kumar; Rajan Kumar Gupta
The world is currently facing global energy crises and escalating environmental pollution, which are caused by the extensive exploitation of conventional energy sources. The limited availability of conventional energy sources has opened the door to the search for alternative energy sources. In this regard, microalgae have emerged as a promising substitute for conventional energy sources due to their high photosynthetic rate, high carbohydrate and lipid content, efficient CO2 fixation capacity, and ability to thrive in adverse environments. The research and development of microalgal-based biofuel as a clean and sustainable alternative energy source has been ongoing for many years, but it has not yet been widely adopted commercially. However, it is currently gaining greater attention due to the integrated biorefinery concept. This study provides an in-depth review of recent advances in microalgae cultivation techniques and explores methods for increasing lipid production by manipulating environmental factors. Furthermore, our discussions have covered high lipid content microalgal species, harvesting methods, biorefinery concepts, process optimizing software tools, and the accumulation of triglycerides in lipid droplets. The study additionally explores the influence of abiotic stresses on the response of biosynthetic genes involved in lipid synthesis and metabolism. In conclusion, algae-based biofuels offer a viable alternative to traditional fuels for meeting the growing demand for energy. © 2023 by the authors.
Enhancing lipid productivity in microalgae: Novel approaches for sustainable biofuel production
(Elsevier, 2025) Rahul Prasad Singh; Priya Yadav; Indrajeet Anil Kumar; Manoj Kumar Solanki; Ajay Kumar; Rajan Kumar G. Gupta
Global energy consumption is increasing due to rising global population and higher energy demands in modern society. Algal biofuel production is a promising source of sustainable and renewable energy. The commercialization of algal biofuel production faces challenges, such as high production costs and difficulties in scaling up the process. Several novel approaches have been developed to overcome the hurdles and make algal biofuel production more cost-effective and scalable. This study primarily aims to examine the novel approaches being explored to reduce the cost and scale up algal biofuel production. Various novel approaches have been demonstrated to enhance the cultivation of microalgae with high lipid production, such as algal strain selection, integrated algal cultivation systems, co-cultivation and consortia systems, nutrient recycling, genetic engineering, and automation and monitoring. Continued research and technological advancements in these areas have the potential to make algal biofuels more economically competitive with conventional fossil fuels. © 2025 Elsevier Ltd. All rights reserved.
Microbial endophytes as probiotics for the plant health: an overview
(Elsevier, 2022) Shalini Rai; Manoj Kumar Solanki; Anjali Chandrol Solanki; Swarnmala Samal
Probiotics act as biostimulants and are applied to crop microbiome to improve growth, development, alleviation of abiotic stress, fitness, and enhanced immune responses. Endophytic microbes and derived substances are extensively formulated as probiotics that are introduced to elicit a positive change in plant fitness. Endophytes-based bioformulation has been predominantly effective in agronomic crops because of their biocontrol activity against phytopathogen. This chapter elaborately focused on the recent prospectus of endophytic microbes as probiotics that modulate numerous mechanisms that participate during the probiotic–plant interactions. The colonization and induction of positive traits include acquiring nutrients, secretion of secondary metabolites, siderophores, and phytohormone production, stimulating resistance responses in crops, and developing defense mechanisms in response to abiotic and biotic stresses. Presently, the search for novel endophytic with multifarious functions received great attention due to its application in the rhizosphere and seed engineering that modulate structure, composition, diversity, and beneficial traits of crops. The recent development of endophytic microbes encourages its application in agricultural sectors to improve crop production. © 2023 Elsevier Inc. All rights reserved.
Microbially derived surfactants: an ecofriendly, innovative, and effective approach for managing environmental contaminants
(Frontiers Media SA, 2024) Navdeep Singh; Xiao-Hu Hu; Vikash Kumar; Manoj Kumar Solanki; Amit Kaushik; Vipin Kumar Singh; Sandeep Kumar Singh; Priya Yadav; Rahul Prasad Singh; Nikunj Bhardwaj; Zhen Wang; Ajay Kumar
The natural environment is often contaminated with hydrophobic pollutants such as long-chain hydrocarbons, petrochemicals, oil spills, pesticides, and heavy metals. Hydrophobic pollutants with a toxic nature, slow degradation rates, and low solubility pose serious threats to the environment and human health. Decontamination based on conventional chemical surfactants has been found to be toxic, thereby limiting its application in pharmaceutical and cosmetic industries. In contrast, biosurfactants synthesized by various microbial species have been considered superior to chemical counterparts due to their non-toxic and economical nature. Some biosurfactants can withstand a wide range of fluctuations in temperature and pH. Recently, biosurfactants have emerged as innovative biomolecules not only for solubilization but also for the biodegradation of environmental pollutants such as heavy metals, pesticides, petroleum hydrocarbons, and oil spills. Biosurfactants have been well documented to function as emulsifiers, dispersion stabilizers, and wetting agents. The amphiphilic nature of biosurfactants has the potential to enhance the solubility of hydrophobic pollutants such as petroleum hydrocarbons and oil spills by reducing interfacial surface tension after distribution in two immiscible surfaces. However, the remediation of contaminants using biosurfactants is affected considerably by temperature, pH, media composition, stirring rate, and microorganisms selected for biosurfactant production. The present review has briefly discussed the current advancements in microbially synthesized biosurfactants, factors affecting production, and their application in the remediation of environmental contaminants of a hydrophobic nature. In addition, the latest aspect of the circular bioeconomy is discussed in terms of generating biosurfactants from waste and the global economic aspects of biosurfactant production. Copyright © 2024 Singh, Hu, Kumar, Solanki, Kaushik, Singh, Singh, Yadav, Singh, Bhardwaj, Wang and Kumar.
Significance of nanofertilizers in enhancing agricultural productivity: Current perspective
(Elsevier, 2024) Leena Shrivastava; Manohar Khatarkar; Sandeep Kumar Singh; Priya Yadav; Livleen Shukla; Manoj Kumar Solanki; Ajay Kumar
Currently to achieve food security, a large number of the population is dependent upon chemical fertilizers or chemical pesticides but the continuous and undistributed use of chemicals has not only affected the texture and productivity of soil and the nutritional quality of food native microflora but also affected the environment causing soil and water pollution. In addition, the pesticide residues present in the food or fruits adversely affect human health and cause toxicity. In this regard nowadays for efficient and precise use nanofertilizers have been preferred over chemical fertilizers to enhance agricultural productivity. Nanofertilizers, a novel class of agricultural inputs, have emerged as a promising tool to enhance agricultural productivity. Their small size and high surface area enable efficient nutrient delivery, leading to improved nutrient uptake by plants. This chapter provides a comprehensive overview of the current perspectives on the significance of nanofertilizers in agriculture. Moreover, it also discusses the various types of nanofertilizers, their synthesis methods, and their mechanisms of action. Furthermore, it highlights the benefits of using nanofertilizers, such as increased nutrient use efficiency, reduced environmental impact, and enhanced crop yields. © 2025 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.