Biosynthesis of fatty acids alkyl esters in miniemulsion as a reaction media

The process of producing mono-alkyl esters of fatty acids from cottonseed and sunflower oils under the influence of the magnetic field with intensity 15-45 mT was investigated . It was revealed that the use of the energy of magnetic field allows to reduce the reaction time to 10 times, the excess of used alcohol to 2 times while maintaining high yield of the desired product.

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Enantioselective Enzymatic Synthesis of ( R )‐Phenyl Alkyl Esters and Their Analogue Amides using Fatty Acids as Green Acyl Donors.

ChemistrySelect ◽

10.1002/slct.202103831 ◽

2021 ◽

Vol 6 (48) ◽

pp. 13941-13946

Author(s):

Nour ElHouda Benamara ◽

Mounia Merabet‐Khelassi ◽

Samia Guezane Lakoud ◽

Louisa Aribi‐Zouioueche ◽

Olivier Riant

Keyword(s):

Fatty Acids ◽

Enzymatic Synthesis ◽

Alkyl Esters ◽

Acyl Donors

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Performance of Various Organic Solvents as Reaction Media in Plant Oil Lipolysis with Plant Lipase

REAKTOR ◽

10.14710/reaktor.18.2.71-75 ◽

2018 ◽

Vol 18 (2) ◽

pp. 71

Author(s):

Astri Nur Istyami ◽

Tatang Hernas Soerawidjaja ◽

Tirto Prakoso ◽

Tri Ari Penia Kresnowati

Keyword(s):

Fatty Acids ◽

Organic Solvent ◽

Organic Solvents ◽

Process Condition ◽

Plant Oil ◽

Plant Lipase ◽

Reaction Media ◽

Hydrolysis Of ◽

Product Degradation ◽

Plant Latex

Fatty acids are intermediate substances in synthesis of oleochemical products. Enzymatic technology of fatty acids production (also known as lipolysis) is now developing as potential substitution for the conventional production of fatty acid, i.e. thermal hydrolysis of triglyceride. It offers more economical process condition, low energy consumption, and minimal product degradation compared to the conventional process. This research aims to evaluate performance of various organic solvents as reaction media in lipolysis with plant latex lipase. Organic solvents observed were chloroform, n-hexane, diethyl ether, benzene, acetone, ethanol, methanol, n-heptane, and isooctane. Analysis of each organic solvent effect on lipolysis was described based on solvents properties. Conversion of lipolysis with organic solvents is 0,10-1,25 times fold compared to conversion of non-solvent lipolysis. We suggest that dielectric constant and viscosity are the two main organic solvent properties affecting lipase performance in lipolysis. Overall, n-hexane, n-heptane, and isooctane are recommended to be used as reaction media in lipolysis with plant lipase because their effects to degree of lipolysis are positive. Keywords: lipolysis; lipase; organic solvent; frangipani

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A Simplified Halphen Procedure for Cyclopropene Fatty Acids

Journal of AOAC INTERNATIONAL ◽

10.1093/jaoac/55.6.1288 ◽

1972 ◽

Vol 55 (6) ◽

pp. 1288-1293

Author(s):

Eugene C Coleman ◽

David Firestone

Keyword(s):

Fatty Acids ◽

Quantitative Determination ◽

Closed System ◽

Fats And Oils ◽

The Other ◽

Solvent Systems ◽

Cyclopropene Fatty Acids ◽

Reaction Media ◽

Qualitative Analyses

Abstract A simplified Halphen procedure was developed for the quantitative determination of cyclopropene fatty acids in fats and oils. Butanol, dimethyl sulfoxide (DMSO), and mixtures of butanol and DMSO were used as reaction media in a closed system. Higher sample absorbances were produced in butanol than in mixtures of butanol and DMSO. Butanol was superior to the other solvent systems for both quantitative and qualitative analyses. The lower limit of sensitivity for the tube-butanol system for quantitative and qualitative analyses was 18 and 15 μg cyclopropene fatty acids/g oil, respectively.

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Process for the preparation of branched-chain fatty acids and alkyl esters

Zeolites ◽

10.1016/s0144-2449(97)85032-4 ◽

1997 ◽

Vol 18 (1) ◽

pp. 90-91 ◽

Cited By ~ 4

Author(s):

T. Tomifuji ◽

H. Abe ◽

Y. Matsumura

Keyword(s):

Fatty Acids ◽

Alkyl Esters ◽

Branched Chain Fatty Acids ◽

Branched Chain ◽

Chain Fatty Acids

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Performance in synthetic applications of a yeast surface display-based biocatalyst

RSC Advances ◽

10.1039/c5ra04039f ◽

2015 ◽

Vol 5 (39) ◽

pp. 30425-30432 ◽

Cited By ~ 2

Author(s):

J. M. Eby ◽

S. W. Peretti

Keyword(s):

Fatty Acids ◽

Organic Synthesis ◽

Surface Display ◽

Yeast Surface Display ◽

Alkyl Esters ◽

Yeast Surface ◽

Kinetics Of

Organic synthesis with surface-displayed lipase: alkyl esters of fatty acids. Compared performance to commercial preparations. Catalyst is reusable and stable up to 50–60 °C. Kinetics of surface-displayed synthesis of butyl decanoate.

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Sodium salts of alkyl esters ofa-sulfo fatty acids. Wetting, lime soap dispersion, and related properties

Journal of the American Oil Chemists Society ◽

10.1007/bf02631689 ◽

1962 ◽

Vol 39 (2) ◽

pp. 128-131 ◽

Cited By ~ 32

Author(s):

A. J. Stirton ◽

R. G. Bistline ◽

J. K. Weil ◽

Waldo C. Ault ◽

E. W. Maurer

Keyword(s):

Fatty Acids ◽

Lime Soap ◽

Alkyl Esters ◽

Sodium Salts

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Surface components of chylomicrons from rats fed glyceryl or alkyl esters of fatty acids: Minor components

Lipids ◽

10.1007/bf02536119 ◽

1992 ◽

Vol 27 (8) ◽

pp. 613-618 ◽

Cited By ~ 11

Author(s):

L. Y. Yang ◽

A. Kuksis ◽

J. J. Myher ◽

H. Pang

Keyword(s):

Fatty Acids ◽

Minor Components ◽

Alkyl Esters

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TECHNICAL REPORT 2: ACID CATALYSIS IN THE PRODUCTION OF BIODIESEL

Periódico Tchê Química ◽

10.52571/ptq.v7.n13.2010.31_periodico13_pgs_30_32.pdf ◽

2010 ◽

Vol 07 (13) ◽

pp. 30-32

Author(s):

Luis Alcides Brandini DE BONI ◽

Eduardo GOLDANI

Keyword(s):

Fatty Acids ◽

Acid Catalysis ◽

Raw Materials ◽

Raw Material ◽

Biodiesel Production ◽

Esterification Reaction ◽

National Program ◽

Alkyl Esters ◽

Technical Report ◽

Acidity Level

Several raw materials have been used in the biodiesel production since the implementation of the National Program of Production and Use of Biodiesel through the Brazilian Law 11.097 of January 13th 2005. The most common way used to produce this biofuel is the transesterification reaction which, among others features, requires a raw material with low acidity level. When this condition is not reached, the esterification reaction is alternatively used to convert free fatty acids into mono alkyl esters. Sulfuric acid is one of the catalysts that can be used in the esterification reaction which, therefore, can react with the alcohol generating dimethylsulfate. The aim of this technical report is to discuss the chemical reactions involved when the esterification reaction is used and the effects that this may cause, such as exposure to carcinogenic products.

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