Department of Biological Sciences

Permanent URI for this collectionhttp://localhost:4000/handle/123456789/1922

Browse

Author: search.filters.author.Mehrotra, RajeshSubject: search.filters.subject.Biodiesel

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Lipase Immobilization Techniques for Biodiesel Production: An Overview
    (IBIMA, 2014-05-13) Bhagavatula, Vani; Mehrotra, Rajesh; Mehrotra, Sandhya
    The growing energy needs and depleting fuel sources compel us to look towards production of biodiesel, an appropriate alternative. The industrially used chemical catalysis process is beset with problems that enzymatic production using lipases could avoid. In this light, the immobilization of lipases plays an important role in the optimization of the production process. This review discusses the various techniques that have been studied for lipase immobilization, namely adsorption, covalent attachment, entrapment, cross-linked enzyme agglomerates and whole-cell biocatalysts, while highlighting their benefits and drawbacks. It also sheds light on the future of enzyme immobilization and its industrial application.
  • No Thumbnail Available
    Item
    Biodiesel production through lipase catalyzed transesterification: An overview
    (Elsiever, 2010) Jha, Prabhat N.; Mehrotra, Rajesh
    Recently, with the global shortage of fossil fuels, excessive increase in the price of crude oil and increased environmental concerns have resulted in the rapid growth in biodiesel production. The central reaction in the biodiesel production is the transesterification reaction which could be catalyzed either chemically or enzymatically. Enzymatic transesterification has certain advantages over the chemical catalysis of transesterification, as it is less energy intensive, allows easy recovery of glycerol and the transesterification of glycerides with high free fatty acid contents. Limitations of the enzyme catalyzed reactions include high cost of enzyme, low yield, high reaction time and the amount of water and organic solvents in the reaction mixture. Researchers have been trying to overcome these limitations in the enzyme catalyzed transesterification reaction. This paper is meant to review the latest development in the field of lipase catalyzed transesterification of biologically derived oil to produce biodiesel.