Effect of Immersed Herbs on the Oxidative Stability of Edible Oils

Somogyi, László; Gorka, Ágnes; Soós, Anita; Badak-Kerti, Katalin; Kóczán-Manninger, Kata; Szedljak, I.

doi:10.3311/ppch.7571

Cited by 4 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An addition of 0.005% of lycopene improved walnut oil quality and extended walnut shelf life up to 16 months (Xie et al, 2018). The immersion of herbs (sage and oregano; 3%, 5%, and 7% (w/w) herb/oil; 30 • C for 10 days) increased the oxidative stability of the investigated oils, and particularly oils rich in polyunsaturated fatty acids (Somogyi et al, 2015). When sage, thyme and basil (under different forms: aerial plant intact or part cut into pieces, or leaves only) were added to walnut oil, an increase of the antioxidant activity of walnut oil was mainly observed with sage addition (Laskos et al, 2021).…”

Section: Walnut Oil Stabilitymentioning

confidence: 96%

Walnut (Juglans regia L.) oil chemical composition depending on variety, locality, extraction process and storage conditions: A comprehensive review

Rébufa¹,

Artaud²,

Dréau³

2022

Journal of Food Composition and Analysis

View full text Add to dashboard Cite

Section: Walnut Oil Stabilitymentioning

confidence: 96%

Walnut (Juglans regia L.) oil chemical composition depending on variety, locality, extraction process and storage conditions: A comprehensive review

Rébufa¹,

Artaud²,

Dréau³

2022

Journal of Food Composition and Analysis

View full text Add to dashboard Cite

“…The antioxidant capacity of ferric ion reduction in C. longa L. leaves was 217.99 µMol of FeSO 4 .100 g -1 . Somogyi et al (2015) found the following FRAP values for 7% w/w concentration of herbs immersed in vegetable oils: 500, 580, and 600 µMol of FeSO 4 .100 g -1 for dried leaves of sage (Salvia officinalis L., Labiatae) and 300, 310, and 380 µMol of FeSO 4 .100 g -1 for dried leaves of oregano (Origanum vulgare L., Lamiaceae). These values were higher than those found in this study.…”

Section: Peroxide Index (Pi)mentioning

confidence: 98%

Headspace GC/MS for identification of bioactive compounds of Curcuma longa L. leaf extract: Industrial application as antioxidant for soybean oil

et al. 2023

View full text Add to dashboard Cite

The use of natural antioxidants extracted from plants is an alternative to the application of synthetic antioxidants. In this study, we evaluated the oxidative stability of soybean oil after the addition of Curcuma longa L. leaf extracts compared to its oxidative stability with the synthetic antioxidant butylated hydroxytoluene (BHT Different concentrations (0.5%, 1.0%, and 1.5%) of ethanolic extract of Curcuma longa L. leaves were added to the oil, and the mixture was heated at 60 ±2 °C for 12 days. Several parameters of oxidative stability, including the peroxide index (PI), thiobarbituric acid reactive substances (TBARS), and conjugated dienes and trienes, were analyzed every three days. The results were promising, the oils to which the Curcuma longa L. leaf extract was added showed a reduction in all parameters, indicating oxidative deterioration under the influence of the concentration of the extract and the duration of treatment. The extract was less effective at low concentrations (0.5%), the parameters did not vary considerably. The PI was low in all treatments until the third day. The PI of the soybean oil treated with 1.5% extract was lower than that after treatment with the synthetic antioxidant and the blank treatment on days 6 to 12. The highest production of TBARS was observed in the blank treatment on days 6 to 12, and the lowest values of TBARS were recorded in the soybean oil treated with 1.5% extract. For the same concentration, the conjugated dienes varied from 2.05 to 8.6, and the trienes from 0.57 to 1.59.

show abstract

“…The GC-FID or GC-MS instruments are suitable for the chromatographic separation and detection of volatile compounds such as ketone bodies [26], alcohol derivatives [27] or FAME species [28,29]. The chromatographic separation of cis and trans (FAME) needs the application of special stationary phases such as propyl-nitrile-polysiloxane [27,30].…”

Section: Introductionmentioning

confidence: 99%

Application of Gas Chromatography – Flame Ionization Detection to Study Cellular Incorporation of Dietary Trans Fatty Acids of Medical Importance

Somogyi

Mátyási

Gór-Nagy

et al. 2021

Period. Polytech. Chem. Eng.

View full text Add to dashboard Cite

Putative health effects of dietary trans fatty acids (TFAs) receive a growing attention; while very little is known about the metabolism of these special food components. In vitro studies carried out in cultured cells provide an efficient and standardizable approach to follow the metabolic fate of TFAs, but it requires suitable techniques for the quantitative measurement of FAs in cell samples. Here, the development and validation of a simple and reliable method for the quantification of a group of relevant FAs by gas chromatography and flame ionization detection is presented. Sample preparation used a fast one-step and chloroform-free process for simultaneous extraction and esterification, and chromatographic separation was achieved in 25 min using a Zebron ZB-88 capillary column. A linear calibration (of R2 >0.99) was obtained in the concentration range of 1-200 µg/mL for each FA. Recovery rate was 82 % for samples of non-esterified FAs and >95 % for complex lipids, such as ceramides, diglycerides and triglycerides. The LOD and LOQ were below 0.5 µg/mL, and a robust method precision was achieved (RSD % was below 6 % for each lipid classes). The present method was also tested on a cultured cell line with or without FA treatment at close to physiological concentration, and the observed changes in the metabolite concentration levels revealed characteristic differences between the metabolism of cis and trans unsaturated FAs.

show abstract

Effect of Immersed Herbs on the Oxidative Stability of Edible Oils

Abstract: Abstract

Cited by 4 publications

References 13 publications

Walnut (Juglans regia L.) oil chemical composition depending on variety, locality, extraction process and storage conditions: A comprehensive review

Walnut (Juglans regia L.) oil chemical composition depending on variety, locality, extraction process and storage conditions: A comprehensive review

Headspace GC/MS for identification of bioactive compounds of Curcuma longa L. leaf extract: Industrial application as antioxidant for soybean oil

Application of Gas Chromatography – Flame Ionization Detection to Study Cellular Incorporation of Dietary Trans Fatty Acids of Medical Importance

Contact Info

Product

Resources

About