Chemical transformations of fatty acids in the hydrolysis of triglycerides. selective isolation of oleic acid from rapeseed oil under sub- and supercritical water conditions

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Resumo

The hydrolysis of rapeseed oil in sub- and supercritical water (T = 573–653 K, p = 30 MPa) has been studied using a batch setup. Unlike traditional hydrolysis, the hydrothermal process involves in situ change of the fatty acid composition as a result of the transformation of linoleic acid to oleic acid, and there is the possibility of selective isolation of the latter with a purity sufficient for its use for technical purposes without special purification. A stepwise mechanism of the hydrothermal process has been proposed on the basis of analysis of transformation products of individual linoleic acid.

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Sobre autores

A. Aetov

Kazan National Research Technological University

Email: violetta.voleva@gmail.com
ORCID ID: 0000-0002-9371-332X
Rússia, ul. Karla Marksa, 68, Kazan, 420015

R. Usmanov

Kazan National Research Technological University

Email: violetta.voleva@gmail.com
ORCID ID: 0000-0001-7007-0328
Rússia, ul. Karla Marksa, 68, Kazan, 420015

R. Gabitov

Kazan National Research Technological University

Email: violetta.voleva@gmail.com
ORCID ID: 0000-0003-4873-8496
Rússia, ul. Karla Marksa, 68, Kazan, 420015

S. Mazanov

Kazan National Research Technological University

Email: violetta.voleva@gmail.com
ORCID ID: 0000-0002-1718-5262
Rússia, ul. Karla Marksa, 68, Kazan, 420015

V. Vol’eva

N. M. Emanuel Institute of Biochemical Physics of Russian Academy of Sciences

Autor responsável pela correspondência
Email: violetta.voleva@gmail.com
ORCID ID: 0000-0002-7034-7486
Rússia, ul. Kosygina, 4, Moscow, 119334

A. Ryzhakova

N. M. Emanuel Institute of Biochemical Physics of Russian Academy of Sciences

Email: violetta.voleva@gmail.com
ORCID ID: 0000-0002-5063-0065
Rússia, ul. Kosygina, 4, Moscow, 119334

R. Musin

A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences

Email: violetta.voleva@gmail.com
ORCID ID: 0000-0003-4526-4221
Rússia, ul. Arbuzova, 8, Kazan, 420088

F. Gumerov

Kazan National Research Technological University

Email: violetta.voleva@gmail.com
ORCID ID: 0000-0002-3806-2165
Rússia, ul. Karla Marksa, 68, Kazan, 420015

S. Varfolomeev

N. M. Emanuel Institute of Biochemical Physics of Russian Academy of Sciences

Email: violetta.voleva@gmail.com
ORCID ID: 0000-0003-2793-0710
Rússia, ul. Kosygina, 4, Moscow, 119334

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2. Fig. 1. Effect of temperature on the oleic acid content in hydrolysates at a water-to-oil volume ratio of 1:1

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3. Fig. 2. Effect of temperature on the oleic acid content in hydrolysates at a water-to-oil volume ratio of 2:1

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4. Fig. 3. Effect of temperature on the oleic acid content in hydrolysates at water-oil ratios of 1:1 (1) and 2:1 (2)

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5. Fig. 4. Effect of process duration on the oleic acid content in hydrolysates at a temperature of 573 K and water-oil ratios of 1:1 (1) and 2:1 (2) at a constant pressure of 30 MPa

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6. Scheme 1

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7. Scheme 2

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8. Figure from Contents

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