Antioxidant activity of conjugated linoleic acid isomers, linoleic acid and its methyl ester determined by photoemission and DPPH techniques

Fagali, Natalia; Catalá, Ángel

doi:10.1016/j.bpc.2008.07.001

Cited by 78 publications

(55 citation statements)

References 25 publications

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“…The same researchers have suggested that the high scavenging activity of CLAs against DPPH• free radicals may contribute to their biological activity. This observation is in agreement with findings by Fagali & Catalá (2008), who also demonstrated the ability of isomers of CLAs to reduce free radicals using a photoemission test (lipid peroxidation of PUFAs was induced by tert-butyl hydroperoxide (TBH) and the reduction in chemiluminescence, brought about by adding isomers of CLAs, was monitored) and a spectrophotometric assay (the decrease in absorbance of a solution containing the DPPH• radical through the addition of the isomers of CLAs was monitored).…”

Section: Introductionsupporting

confidence: 78%

Characterization of constituents, quality and stability of pomegranate seed oil (Punica granatum L.)

et al. 2016

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This study aimed to characterize pomegranate seed oil and evaluate its quality and stability parameters against those of linseed oil. The profile of fatty acids and phytosterols and the content of tocopherols were analyzed by gas chromatography and high performance liquid chromatography, respectively. The quality of both oils was assessed as recommended by the American Dil Chemists' Society (ADCS) and stability was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH), β-carotene bleaching (coupled oxidation of β-carotene/linoleic acid) and Rancimat  assays. While α-linolenic acid (52%) was the most abundant fatty acid in linseed oil (LD), punicic acid (55%) was highest in pomegranate seed oil (PSD). Tocopherols and phytosterols (175 and 539 mg/100 g, respectively) were greater in PSD than in LD (51 and 328 mg/100 g, respectively). Both oils met quality standards. The β-carotene bleaching and the DPPH assays showed greater oxidative stability for PSD than for LD. The Rancimat  method, on the other hand, indicated low stability for both oils.

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Section: Introductionsupporting

confidence: 78%

Characterization of constituents, quality and stability of pomegranate seed oil (Punica granatum L.)

et al. 2016

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“…Some authors showed that linoleic acid, conjugated linoleic acid, and linoleic methyl ester have antioxidative activity and proposed this as a possible explanation for anticarcinogenic and antiatherogenic effects. Nevertheless, additional studies are necessary to show their free radical-scavenging activity in different radical systems and under physiological conditions, and to determine whether there is any link between their radical-scavenging properties and their biological effects (Fagali & Catalá, 2008).…”

Section: Compoundmentioning

confidence: 99%

Chemical, biochemical and electrochemical assays to evaluate phytochemicals and antioxidant activity of wild plants

et al. 2011

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“…The contradictory conclusions due to the presence of both trans configuration and conjugated double bond which may lead to stability and initiation of lipid autoxidation which can serve as pro-oxidant (Santos-Zago et al, 2008). The possible way of explaining CLA antioxidant activity is based on the anticarcinogenic and antiatherogenic effect by suppressing their free radical (Fagali and Catala, 2008) ) also confirms that different CLA isomers either individual such as t10, c12-CLA or mix can increase higher muscle antioxidant enzyme (CAT and GSH-Px) production which accompanied by an enhancement in H 2 O 2 . It can also maintain redox balance during aging process (Rahman et al, 2009).…”

Section: Cla Role On Antioxidant Activitymentioning

confidence: 66%

Bioactive Conjugated Linoleic Acid (CLA) in Milk

Kee¹,

Ganesan²,

Kwak³

2010

Korean Journal for Food Science of Animal Resources

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Conjugated linoleic acid (CLA) isomers are found naturally in foods, such as milk, milk products, beef and others, from biohydrogenation of vegetable oils. They are heterogenous group of isomers of linoleic acid in the family of polyunsaturated fatty acids. Among the isomers of linoleic acid cis9, trans11-CLA (c9, t11-CLA) and trans10, cis12-CLA (t10, c12-CLA) are found to be biologically active isomers. These biologically active isomers either individual or combined found to be health beneficial in various diseases, such as cancer, diabetes, obesity, and atherosclerosis, conclusive participation in physiological processes are necessary. This review focused on the current study of CLA in prevention of disease, such as cancer, diabetes and atherosclerosis, and their effective function in body fat reduction, improvement of bone and muscle mass at a cellular, clinical and systematic level.

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Antioxidant activity of conjugated linoleic acid isomers, linoleic acid and its methyl ester determined by photoemission and DPPH techniques

Cited by 78 publications

References 25 publications

Characterization of constituents, quality and stability of pomegranate seed oil (Punica granatum L.)

Characterization of constituents, quality and stability of pomegranate seed oil (Punica granatum L.)

Chemical, biochemical and electrochemical assays to evaluate phytochemicals and antioxidant activity of wild plants

Bioactive Conjugated Linoleic Acid (CLA) in Milk

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