Identification of triacylglycerols in the enzymatic transesterification of rapeseed and butter oil

Svensson, Julia; Adlercreutz, Patrick

doi:10.1002/ejlt.200800074

Cited by 24 publications

(25 citation statements)

References 14 publications

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“…Unlike in GC where elution of fatty acids is influenced by chain length, in reverse-phase HPLC, unsaturated fatty acids are eluted substantially ahead of the saturated fatty acids of the same chain length [28]. In addition, the more the number of double bonds in unsaturated fatty acids of the same chain length, the shorter the elution time, therefore linolenic acid (C 18:3) elutes ahead of linoleic acid (C 18:2) and oleic acid (C 18:1) [31]. The order of elution of some fatty acids also change with relative proportion of organic solvent in the mobile phase with the retention time of the shorter fatty acids decreasing faster than that of the longer components with increasing solvent strength [28].…”

Section: Resultsmentioning

confidence: 99%

Strategies for the enzymatic enrichment of PUFA from fish oil

Mbatia

Mattìasson

Mulaa

et al. 2011

Eur. J. Lipid Sci. Technol.

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PUFA from oil extracted from Nile perch viscera were enriched by selective enzymatic esterification of the free fatty acids (FFA) or by hydrolysis of ethyl esters of the fatty acids from the oil (FA-EE). Quantitative analysis was performed using RP-HPLC coupled to an evaporative light scattering detector (RP-HPLC-ELSD). The lipase from Thermomyces lanuginosus discriminated against docosahexaenoic acid (DHA) most, resulting in the highest DHA/DHA-EE enrichment while lipase from Pseudomonas cepacia discriminated against eicosapentaenoic acid (EPA) most, resulting in the highest EPA/EPA-EE enrichment. The lipases discriminated between DHA and EPA with a higher selectivity when present as ethyl esters (EE) than when in FFA form. Thus when DHA/EPA were enriched to the same level during esterification and hydrolysis reactions, the DHA-EE/EPA-EE recoveries were higher than those of DHA/EPA-FFA. In reactions catalysed by lipase from T. lanuginosus, at 26 mol% DHA/DHA-EE, DHA recovery was 76% while that of DHA-EE was 84%. In reactions catalysed by lipase from P. cepacia, at 11 mol% EPA/EPA-EE, EPA recovery was 79% while that of EPA-EE was 92%. Both esterification of FFA and hydrolysis of FA-EE were more effective for enriching PUFA compared to hydrolysis of the natural oil and are thus attractive process alternatives for the production of products highly enriched in DHA and/or EPA. When there is only one fatty acid residue in each substrate molecule, the full fatty acid selectivity of the lipase can be expressed, which is not the case with triglycerides as substrates.

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Section: Resultsmentioning

confidence: 99%

Strategies for the enzymatic enrichment of PUFA from fish oil

Mbatia

Mattìasson

Mulaa

et al. 2011

Eur. J. Lipid Sci. Technol.

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“…Use of biocatalysts (enzymes, lipases) in TE of algae-derived TAG for biodiesel production could potentially address the forementioned challenges facing chemical TE systems and offer some environmental advantages over traditional processes [82]. Although the technology is promising and increasingly attractive to researchers, the process is still expensive (mainly, due to high price of lipase), and it has not been demonstrated at sufficiently large scale.…”

Section: Biochemical Transesterificationmentioning

confidence: 99%

Industrial Utilization of CO2: A Win–Win Solution

Muradov¹

2014

Lecture Notes in Energy

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Carbon capture and utilization (CCU) is an attractive carbon abatement strategy because of its potential for not only preventing CO 2 emissions to the atmosphere but also converting CO 2 to value-added products: a win-win solution. This approach can potentially make the carbon capture process more profitable and substantially reduce the investment needs for a rather expensive CO 2 storage infrastructure. Over the last few years, interest in CCU has grown significantly, and many innovative technological approaches to the industrial CO 2 utilization are under development, such as CO 2 conversion to construction materials, plastics, fertilizers, fuels, etc. At the same time, the analysis of the CO 2 utilization market shows that all existing industrial CO 2 applications consume relatively small quantities of CO 2 , thus for the CCU to present a practical interest as a sink for anthropogenic CO 2 emissions, the markets for the CO 2 -derived products would need to be increased by orders of magnitude. In this chapter, existing and emerging CO 2 utilization technologies are analyzed in terms of their technological maturity, market size, permanence of CO 2 storage, environmental impact, potential revenue generation, and carbon mitigation potential. The current status and outlook for CO 2 -to-fuel conversion technologies and CO 2 utilization in algal systems are highlighted in this chapter. IntroductionThe economic challenges of CCS have caused major delays in its commercial deployment; therefore, the capture and industrial use of CO 2 is considered a promising approach to overcome these challenges. Carbon capture and utilization (CCU) presents a very attractive alternative to conventional CCS because of its potential for not only preventing CO 2 emissions to the atmosphere but also converting CO 2 to value-added products, which is seen by many as a win-win solution. The support for CCU has been steadily growing worldwide and intensified during the last couple decades. Currently, a number of commercial technologies are turning CO 2 into Chapter 9Industrial Utilization of CO 2 : A Win-Win Solution 326 building materials, plastics, chemicals, fertilizers, and several projects converting CO 2 into fuels are now approaching a demonstration stage.Although CO 2 has been utilized in a variety of industrial applications for decades (e.g., in food/beverage and chemical industries), the current CO 2 utilization efforts focus on novel pathways and approaches to reducing CO 2 emissions through its beneficial uses (i.e., reuses), particularly in areas where other means of CO 2 storage (e.g., geological storage) may not provide an optimal solution. The advantages of the CCU option are threefold:• The industrial use of CO 2 provides a carbon sink, the extent of which will be determined by the size of the market for CO 2 -derived products and lifetime of these products • CO 2 could be converted to the products generating significant revenues that could potentially offset part of the CO 2 capture and transport costs and make the ...

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“…This final temperature (240 °C) was kept for 15 min. The instrument was calibrated with one-point calibration, as described previously [23]. The injection volume was 1 µl in all the experiments.…”

Section: Gas Chromatographymentioning

confidence: 99%

Combination of modern plant breeding and enzyme technology to obtain highly enriched erucic acid from Crambe oil

Volkova

Zhu

et al. 2016

Sustain Chem Process

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Background: Fatty acids from vegetable oils are useful building blocks for industrial materials. The purpose of this work was to prepare erucic acid with high purity from a vegetable oil. High purity erucic acid is used for the production of erucamide with applications in plastics manufacturing. A newly developed transgenic Crambe line produces seed oil with 68 % erucic acid compared to 53 % in the wild type oil.Results: Further enrichment of erucic acid from Crambe (wild type and transgenic) oil was achieved by selective enzymatic hydrolysis. Using Candida rugosa lipase as catalyst, other fatty acids were preferentially hydrolysed from the triacylglycerols and erucic acid was enriched in the acylglycerol fraction. The highest content of erucic acid achieved in that fraction was 95 %. Conclusions:The combination of modern plant breeding and enzyme technology is a promising approach for preparation of fatty acids of high purity.

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Identification of triacylglycerols in the enzymatic transesterification of rapeseed and butter oil

Cited by 24 publications

References 14 publications

Strategies for the enzymatic enrichment of PUFA from fish oil

Strategies for the enzymatic enrichment of PUFA from fish oil

Industrial Utilization of CO2: A Win–Win Solution

Combination of modern plant breeding and enzyme technology to obtain highly enriched erucic acid from Crambe oil

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