• enzymatic transesterification of coconut oil using chitosan

    Enzymatic Transesterification of Coconut Oil Using Chitosan

    The industrial applicability of the biocatalyst was assessed in the transesterification of coconut oil (Cocos nucifera oil) using ethanol as an acylant agent. The viscosity value for the coconut oil (29 mm 2 ·s -1 ) sharply decreased to 3.2 mm 2 ·s -1 , upon the progress of transesterification reaction.

  • enzymatic transesterification of coconut oil using chitosan

    Enzymatic Transesterification of Coconut Oil Using Chitosan

    Request PDF on ResearchGate | Enzymatic Transesterification of Coconut Oil Using Chitosan-Immobilized Lipase Produced by Fluidized-Bed System | This work demonstrated the catalytic performance of

  • pdf transesterification for biodiesel ultrasonic assisted

    PDF Transesterification for Biodiesel Ultrasonic Assisted

    (10) Costa-Silva, T. A. et al. Enzymatic Transesterification of Coconut Oil Using Chitosan-Immobilized Lipase Produced by Fluidized-Bed System. Energy and Fuels 31, 12209- 12216 (2017). (11) Lopresto, C. G. et al. Enzymatic transesterification of waste vegetable oil to produce biodiesel. Ecotoxicol. Environ. Saf. 121, 229-235 (2015).

  • enzymatic synthesis of biodiesel using immobilized lipase

    Enzymatic Synthesis of Biodiesel Using Immobilized Lipase

    In this work was produced an immobilized biocatalyst from Cercospora kikuchii lipase with beneficial catalytic activity and stability. The immobilized derivative was used in the ethanolysis of coconut oil. This is a great option for the Brazilian renewable fuel production, because both coconut oil and ethanol are promptly available in the country, at a reasonably low cost.

  • enzymatic transesterification of jatropha oil | springerlink

    Enzymatic transesterification of Jatropha oil | SpringerLink

    The optimum level of methanol concentration for the maximum synthesis of biodiesel was investigated. The transesterification reaction was carried out at 30°C, using 20 U of immobilized lipase with different molar ratios as shown in Figure 1.Alcohol in excess of the stoichiometric molar ratio of 1:3 (oil:methanol) was used to ensure higher biodiesel yield.

  • production of biodiesel by enzymatic transesterification

    Production of biodiesel by enzymatic transesterification

    The effect of water content on the enzyme-catalyzed transesterification reaction of waste sardine oil was investigated with different percentage of water (5%, 10%, and 15%) and the results are shown in Fig. 1(b). The highest conversion of approximately 92.5% was obtained at a water content of 10% (v/v).

  • ethyl esters (biodiesel) production by pseudomonas

    Ethyl esters (biodiesel) production by Pseudomonas

    The enzymatic synthesis of Ethyl esters from coconut oil (Cocos nucifera) and ethanol was evaluated in a bioreactor assisted by electromagnetic field, using lipase from Pseudomonas fluorescens

  • production of biodiesel by enzymatic transesterification

    Production of biodiesel by enzymatic transesterification

    Waste sardine oil, a byproduct of fish industry, was employed as a low cost feedstock for biodiesel production. It has relatively high free fatty acid (FFA) content (32 mg KOH/g of oil). Lipase enzyme immobilized on activated carbon was used as the catalyst for the transesterification reaction.

  • ethyl esters (biodiesel) production by pseudomonas

    Ethyl esters (biodiesel) production by Pseudomonas

    The enzymatic synthesis of Ethyl esters from coconut oil (Cocos nucifera) and ethanol was evaluated in a bioreactor assisted by electromagnetic field, using lipase from Pseudomonas fluorescens immobilized on chitosan with magnetic properties as biocatalyst.Then, the magnetic, physicochemical and textural characteristics of the prepared biocatalysts were also assessed by vibrational

  • enzymatic transesterification of jatropha oil

    Enzymatic transesterification of Jatropha oil

    Transesterification of Jatropha oil was carried out in t-butanol solvent using immobilized lipase from Enterobacter aerogenes. The presence of t-butanol significantly reduced the negative effects caused by both methanol and glycerol. The effects of various reaction parameters on transesterification

  • pdf enzymatic synthesis of sugar esters and their potential

    PDF Enzymatic synthesis of sugar esters and their potential

    Enzymatic synthesis of sugar esters and their potential as surface-active stabilizers of coconut milk emulsions Nair do Amaral Sampaio Netaa, José Cleiton Sousa dos Santosb, Soraya de Oliveira Sanchoc, Sueli Rodriguesc, Luciana Rocha Barros Gonçalvesb,*, Ligia R. Rodriguesa, José A. Teixeiraa aIBB, Institute for Biotechnology and Bioengineering, Department of Biological Engineering, Centre

  • transesterification of low ffa waste vegetable oil using

    Transesterification of Low FFA Waste Vegetable Oil using

    Transesterification of Low FFA Waste Vegetable Oil using Homogeneous Base Catalyst for Biodiesel Production: Optimization, Kinetics and Product Stability Article (PDF Available) · October 2018

  • immobilized lipase on magnetic chitosan microspheres

    Immobilized lipase on magnetic chitosan microspheres

    Immobilized lipase on magnetic chitosan microspheres for transesterification of soybean oil Article in Biomass and Bioenergy 36:373-380 · January 2012 with 134 Reads How we measure 'reads'

  • biodiesel production from waste coconut oil by esterification

    Biodiesel production from waste coconut oil by esterification

    Oliveira et al. (2010) produced biodiesel from waste coconut oil by esterification with ethanol. The reaction was performed with and without adsorption of water in order to verify the effect of

  • transesterification of sanitation waste for biodiesel production

    Transesterification of Sanitation Waste for Biodiesel Production

    Abstract. This study aimed to assess the generation of biodiesel via enzymatic transesterification (commercial Candida antarctica lipase) using four types of oily waste from environmental sanitation, with the intention of utilising this waste not only to decrease the cost of biofuel but also to mitigate possible negative impacts on the environment.

  • enzymatic transesterification for biodiesel production

    Enzymatic transesterification for biodiesel production

    This paper reviews various aspects of the enzymatic transesterification method to convert used cooking oil to biodiesel. The goal of this paper is to provide a thorough overview from general biodiesel production processes, reaction conditions, challenges, and solutions for higher biodiesel production yield through introducing various microorganisms that are capable of producing the enzymes

  • coating and incorporation of iron oxides into a magnetic

    Coating and incorporation of iron oxides into a magnetic

    The performance of the immobilized biocatalysts was tested in the transesterification reaction of coconut oil using ethanol as an acyl acceptor, and results are shown in Fig. 6a, Fig. 6ba and b and Table 3. Download : Download high-res image (171KB) Download : Download full-size image; Fig. 6a.

  • enzymatic transesterification for production of biodiesel

    Enzymatic transesterification for production of biodiesel

    Transesterification using T. asahii lipase gave a FAME yield of 87.6% with coconut oil/methanol ratio of 1:4, 100 U of immobilized enzyme/g of oil using 1,4-dioxane as solvent at 45 °C in 24 h (Kumari and Gupta, 2012).

  • enzymatic transesterification of jatropha oil | biotechnology

    Enzymatic transesterification of Jatropha oil | Biotechnology

    Transesterification of Jatropha oil was carried out in t-butanol solvent using immobilized lipase from Enterobacter aerogenes. The presence of t-butanol significantly reduced the negative effects caused by both methanol and glycerol. The effects of various reaction parameters on transesterification of Jatropha oil were studied.

  • a performance study of home-made co-immobilized lipase

    A Performance Study of Home-Made Co-Immobilized Lipase

    A Performance Study of Home-Made Co-Immobilized Lipase from Mucor miehei in Polyurethane Foam on The Hydrolysis of Coconut Oil to Fatty Acid Bio‐based fatty acids (FAs) produced through hydrolysis of natural oils and fats are promising chemical feedstocks for increasing the economic value of renewable raw materials.

  • a review of enzymatic transesterification of microalgal oil

    A Review of Enzymatic Transesterification of Microalgal Oil

    A Review of Enzymatic Transesterification of Microalgal Oil-Based Biodiesel Using Supercritical Technology Hanifa Taher , 1 Sulaiman Al-Zuhair , 1 , * Ali H. Al-Marzouqi , 1 Yousef Haik , 2 and Mohammed M. Farid 3

  • process simulation of biodiesel production from jatropha

    Process Simulation of Biodiesel Production from Jatropha

    The increasing concerns over diminishing fossil fuel supplies and rising oil prices, as well as adverse environmental and human health impacts from the use of such fuels have led to the need of finding alternative fuels that will reduce the dependency on fossil fuels. Biodiesel from plant and animal oils sources, has been identified as such an alternative fuel.

  • (pdf) continuous low cost transesterification process for the

    (PDF) Continuous Low Cost Transesterification Process for the

    Biodiesel, or alkyl ester, is an alternative renewable, biodegradable, and non-toxic diesel fuel produced by the catalytic transesterification of vegetable oil. Here we characterize a system for continuous transesterification of vegetable oil using

  • operational and thermal stability analysis of - springerlink

    Operational and Thermal Stability Analysis of - SpringerLink

    Abstract. The aim of this paper was to evaluate different strategies of chitosan activation using cross-linking reagent like glycidol, epichlorohydrin, and glutaraldehyde for Thermomyces lanuginosus lipase (TLL) immobilization. Operational activity and stability by esterification of oleic acid with ethanol and thermal inactivation using these derivatives were investigated.

  • high-level expression and characterization of a chimeric

    High-level expression and characterization of a chimeric

    High-level expression and characterization of a chimeric lipase from Rhizopus oryzae for biodiesel coconut and canola oil biodiesels Fjerbaek L, Christensen KV, Norddahl B. A review of the current state of biodiesel production using enzymatic transesterification. Biotechnol Bioeng.

  • the use of alternative solvents in enzymatic biodiesel

    The use of alternative solvents in enzymatic biodiesel

    By using [CyN 1,1 PrSO 3 H][Tos] for coconut oil transesterification at 110 °C and a 15:1 M:0 molar ratio, a higher yield of 98% was achieved within a shorter time of 2 h. Lewis acidic ILs that contain metal complexes have also been suggested.

  • aplikasi carboxymethyl chitosan - urea glutarat (cmchi - uglu

    Aplikasi Carboxymethyl Chitosan - Urea Glutarat (Cmchi - Uglu

    Synthesis of biodiesel is performed using fluidization column which filled with virgin coconut oil and methanol (1:60) and also heterogeneous catalyst CMChi-UGLU as many as 10% of oil weight on condition within 90 minutes at temperature 65-70°C.

  • synergistic effect of two type cellulase immobilized

    Synergistic Effect of Two Type Cellulase Immobilized

    Simultaneous use of both cellulases shows a significant increase of reducing sugar produced to 1.020 g/L. The effective combination of this two types of cellulases also occurred when coconut husk was used as substrate. A very high enzyme coupling of 92.06% compared to free enzyme was obtained in the immobilization.

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