Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 Isolation of a pure isomer of linoleic acid hydroperoxide.

Literature DB >> 27521073

Isolation of a pure isomer of linoleic acid hydroperoxide.

Abstract

A mixture of positional isomers of linoleic acid hydroperoxide was produced from the oxidation of linoleic acid by lipoxygenase from corn or soybean. Chromatography on a column of silicic acid separated 13-hydroperoxy-11,9-octadecadienoic acid in 99+% purity from the mixture obtained by soybean lipoxygenase oxidation of linoleic acid. Attempts at isolation of pure 9-hydroperoxy-10,12-octadecadienoic acid from hydroperoxides obtained by corn lipoxygenase oxygenation of linoleic acid were partially successful with isolation of the 9-hydroperoxide in 97% purity.

Entities: Chemical Gene Species

Year: 1975 PMID： 27521073 DOI： 10.1007/BF02532488

Source DB: PubMed Journal: Lipids ISSN： 0024-4201 Impact factor: 1.880

10 in total

1. Dimorphotheca sinuata lipoxygenase: formation of 13-L-hydroperoxy-cis-9,trans- 11-octadecadienoic acid from linoleic acid.

Authors: H W Gardner; D D Christianson; R Kleiman
Journal: Lipids Date: 1973-05 Impact factor: 1.880

8. Lipoxygenase from potato tubers. Partial purification and properties of an enzyme that specifically oxygenates the 9-position of linoleic acid.

Authors: T Galliard; D R Phillips
Journal: Biochem J Date: 1971-09 Impact factor: 3.857

9. Mechanism of lipoxidase reaction. I. Specificity of hydroperoxidation of linoleic acid.

Authors: A Dolev; W K Rohwedder; H J Dutton
Journal: Lipids Date: 1967-01 Impact factor: 1.880

10. Sequential enzymes of linoleic acid oxidation in corn germ: lipoxygenase and linoleate hydroperoxide isomerase.

Authors: W H Gardner
Journal: J Lipid Res Date: 1970-07 Impact factor: 5.922

10 in total

16 in total

8. Autoxidation of methyl linoleate. Separation and analysis of isomeric mixtures of methyl linoleate hydroperoxides and methyl hydroxylinoleates.

Authors: H W Chan; G Levett
Journal: Lipids Date: 1977-01 Impact factor: 1.880

9. Formation of dityrosine and other fluorescent amino acids by reaction of amino acids with lipid hydroperoxides.

Authors: K Kikugawa; T Kato; A Hayasaka
Journal: Lipids Date: 1991-11 Impact factor: 1.880

10. A simple method for the preparation of pure 9-D-hydroperoxide of linoleic acid and methyl linoleate based on the positional specificity of lipoxygenase in tomato fruit.

Authors: J A Matthew; H W Chan; T Galliard
Journal: Lipids Date: 1977-03 Impact factor: 1.880

Isolation of a pure isomer of linoleic acid hydroperoxide.

1. Dimorphotheca sinuata lipoxygenase: formation of 13-L-hydroperoxy-cis-9,trans- 11-octadecadienoic acid from linoleic acid.

2. Factors influencing the positional specificity of soybean lipoxygenase.

3. Steric analysis of hydroperoxides formed by lipoxygenase oxygenation of linoleic acid.

4. Photodensitometry in the thin-layer chromatographic analysis of neutral lipids.

5. Specificity of lipoxygenases. Separation of isomeric hydroperoxides by high performance liquid chromatography.

6. On the specificity of the oxygenation of unsaturated fatty acids catalyzed by soybean lipoxidase.

7. On the specificity of the lipoxidase catalyzed oxygenation of unsaturated fatty acids.

8. Lipoxygenase from potato tubers. Partial purification and properties of an enzyme that specifically oxygenates the 9-position of linoleic acid.

9. Mechanism of lipoxidase reaction. I. Specificity of hydroperoxidation of linoleic acid.

10. Sequential enzymes of linoleic acid oxidation in corn germ: lipoxygenase and linoleate hydroperoxide isomerase.

1. Cysteine adds to liquid hydroperoxide.

2. Addition of N-acetylcysteine to linoleic acid hydroperoxide.

3. Fluorescent substances derived from the reaction of 13-monohydroperoxylinoleic acid and methylamine.

4. Thiobarbituric acid-reactive substances from peroxidized lipids.

5. Linoleate hydroperoxides are cleaved heterolytically into aldehydes by a Lewis acid in aprotic solvent.

6. Preparation and purification of lipid hydroperoxides from arachidonic and gamma-linolenic acids.

7. Initiation of lipid peroxidation by a peroxidase/hydrogen peroxide/halide system.

8. Autoxidation of methyl linoleate. Separation and analysis of isomeric mixtures of methyl linoleate hydroperoxides and methyl hydroxylinoleates.

9. Formation of dityrosine and other fluorescent amino acids by reaction of amino acids with lipid hydroperoxides.

10. A simple method for the preparation of pure 9-D-hydroperoxide of linoleic acid and methyl linoleate based on the positional specificity of lipoxygenase in tomato fruit.