In this investigation, Enteromorpha compressa algal oil with high free fatty acids (FFA) used as a feedstock for biodiesel production. Two step process was developed and kinetic study executed to obtain reaction rate constant for the transesterification reaction. The acid esterification was carried out to reduce FFA from 6.3% to 0.34% with optimized parameters of 1.5% H(2)SO(4), 12:1 methanol-oil ratio, 400 rpm at 60 °C and 90 min of reaction time. The maximum biodiesel yield 90.6% was achieved from base transesterification through optimum conditions of 1% NaOH, 9:1 methanol-oil ratio, 600 rpm and 60 °C temperature for 70 min. The algal biodiesel was characterized by GC-MS, HPLC and NIR. This transesterification follows first order reaction kinetics and the activation energy was determined as 73,154.89 J/mol. The biodiesel properties were analyzed and found to be within the limits of American standards. Hence, E. compressa serves as a valuable renewable raw-material for biodiesel production.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2012.10.068 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Integrated biorefinery approach for sustainable production of biodiesel, bioplastics and high value bioproducts from a bloom forming alga, Botryococcus braunii.
Sci Total Environ
January 2025
Department of Ecology and Environmental Science, Assam University, Silchar 788011, Assam, India. Electronic address:
The global shift towards sustainable energy and bioproducts has intensified research on algae. Renewable green biofuel can address and provide solutions to both energy crisis and climate change challenges. Botryococcus braunii, a bloom forming green microalga, known for its high lipid content and potential for biofuel production has been explored in the present study.
View Article and Find Full Text PDFRemoval of cyanobacterial harmful algal blooms (HABs) from contaminated local park lake using mycelial pellets.
Heliyon
January 2025
Functional Omics and Bioprocess Development Laboratory, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, 50603, Malaysia.
Eutrophication and hypereutrophication in lakes foster harmful blue-green algal blooms, which pose a significant threat to the ecological health of freshwater reservoirs. This study investigated the effectiveness of the bio-flocculation approach using the fungus strain BGF4A1 to remove these harmful blooms, specifically targeting cyanobacterial species like PCC-7914. Key flocculation parameters, cyanobacterial concentrations, adsorption kinetics, and pellet morphology were explored in this research.
View Article and Find Full Text PDFMicroalgae-based bioremediation of refractory pollutants: an approach towards environmental sustainability.
Microb Cell Fact
January 2025
Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
Extensive anthropogenic activity has led to the accumulation of organic and inorganic contaminants in diverse ecosystems, which presents significant challenges for the environment and its inhabitants. Utilizing microalgae as a bioremediation tool can present a potential solution to these challenges. Microalgae have gained significant attention as a promising biotechnological solution for detoxifying environmental pollutants.
View Article and Find Full Text PDFPoultry litter extract as solid waste supplement for enhanced microalgal biomass production and wastewater treatment.
Environ Sci Pollut Res Int
January 2025
Biorefinery and Bioenergy Research Laboratory, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 201313, India.
Wastewater and livestock waste can be used as a cheap source of nutrients for microalgae growth. In this work, a cocktail waste medium (CWM) was developed using 75% Chhalera municipal wastewater (C-MWW), 25% Parag dairy wastewater (P-DWW), and 15 g L of poultry litter extract (PLE-15) for low-cost cultivation of Chlorella sp. BRE4.
View Article and Find Full Text PDFA Biorefinery Approach Integrating Lipid and EPS Augmentation Along with Cr (III) Mitigation by .
Cells
December 2024
Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee 247667, India.
The quest for cleaner and sustainable energy sources is crucial, considering the current scenario of a steep rise in energy consumption and the fuel crisis, exacerbated by diminishing fossil fuel reserves and rising pollutants. In particular, the bioaccumulation of hazardous substances like trivalent chromium has not only disrupted the fragile equilibrium of the ecological system but also poses significant health hazards to humans. Microalgae emerged as a promising solution for achieving sustainability due to their ability to remediate contaminants and produce greener alternatives such as biofuels.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!