Synthesis and Application of a New Amphiphilic Antioxidant

Soliman, Hanaa; Arafat, Shaker M.; Basuny, Amany M.; Shattory, Y El

doi:10.5650/jos.ess16222

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…In a recent study, tannic acid (TA), tannyl stearate (TS), molecules synthesized from TA, BHA and BHT synthetic antioxidants were investigated for their power to retard and inhibit linoleic acid oxidation. The results revealed that TA exhibited the best antioxidant activity and its derivative (TS) was more stable than synthetic antioxidants against lipid oxidation as established by the Rancimat method and the addition of TS to frying oils offered good protection against oxidation (Soliman et al, 2017).…”

Section: Change In Conjugated Diene and Triene Contentsmentioning

confidence: 99%

Effect of tunisian pomegranate peel extract on the oxidative stability of corn oil under heating conditions

et al. 2022

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The effect of pomegranate peel extract (PPE) on the oxidative stability of corn oil during heating was studied. Oxidation was followed by determining peroxide value (PV), p-anisidine value (p-AV), free fatty acid value (FFA), conjugated dienes (CD), conjugated trienes hydroperoxides (CT) and the calculated total oxidation value (TOTOX). Polyphenol (TPC) and ortho-diphenol (TOPC) contents as well as the antioxidant activity of each oil sample were evaluated before and after heating. PPE showed a significant inhibitory effect on lipid oxidation. Heating samples for 8 hours supplemented by PPE to a level of 1000 ppm resulted in the highest significant decreases in investigated indices compared to the control and BHT values. It was concluded that the antioxidant activity of PPE delayed oxidation and can be used in the food industry to prevent and reduce lipid deterioration in oil.

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Section: Change In Conjugated Diene and Triene Contentsmentioning

confidence: 99%

Effect of tunisian pomegranate peel extract on the oxidative stability of corn oil under heating conditions

et al. 2022

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“…Albino mice of 22–25 g weight were housed individually under standard conditions (12-h light/dark cycle; 25 ± 3 °C temperature; 35–60 relative humidity). Thirty animals were divided into six groups (5 animals/group); one group was used as control and fed on standard mice feed only, and the other was given a mixture of oral doses of stearyl stearate and standard mice feed 26 . The experiment was performed following the National Research Centre’s Medical Research Ethics Committee (MREC) ethical guidelines for regular experimental animal studies, and the committee approved the experimental protocol, which complied with the instructions provided by the Guide for Care and Use of Laboratory Animals (U.S.—N.I.H.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of a new hydrophobic coating film from stearic acid of buffalo fat

Soliman

Zahran

2022

Sci Rep

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This experiment involved the chemical conversion of pure stearic acid from buffalo adipose tissue to a waxy stearyl stearate, which was subsequently applied as a coating film to extend the shelf life of recently harvested fruits. Fat was extracted from minced adipose tissue using the dry rendering procedure, and it was then characterized. The extracted fat was hydrolyzed into a mixture of free fatty acids and glycerol. The supercritical CO2 extractor was used for stearic acid individual extraction in pure form from the free fatty acid mixture, and it was confirmed according to its melting point (69.2–70.0 °C), elemental analysis, GC–MS for esterified fatty acids. The isolated stearic acid was used for the synthesis of a new hydrophobic wax named stearyl stearate. The chemical structure of the prepared compound was established according to its elemental analysis and spectral data. The new hydrophobic wax was used as a coating film to enhance the shelf life of freshly harvested tomato fruits. Therefore, stearyl stearate solution (2.00% w/v diethyl ether) was used for tomato coating and compared to chitosan-coated tomatoes, where weight loss, pH, fruit firmness, ascorbic acid concentration, and total soluble solids were studied for a period of 15 days at 23 ± 1.0 °C and 65 ± 2.0% relative humidity. The results revealed that coating with stearyl stearate solution (2.00% w/v diethyl ether) could delay tomatoes’ ripening during the experiment condition. A sensory evaluation of the coated tomatoes was carried out and showed acceptable taste for the tomatoes that were coated with stearyl stearate. On the other hand, the acute oral toxicity of stearyl stearate using albino mice showed complete safety up to 25 g/kg mice weight.

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“…Quercetin-3-palmitate hydrogen donating capacity was estimated in terms of its ability to scavenge the deep violet stable free radical DPPH (1.1-Diphenyl-2-picryl hydrazyl) , and it was compared to that of Quercetin and BHT (butyl hydroxyl toluene) individually 9,10) . Thus, a DPPH • solution (3.9 mL, 0.063 mM) was mixed with variable concentrations (0.1 mL) ( 0.2, 0.4 0.6, 0.8 and 1 mmol/L EtOH) of each series (Quercetin-3-palmitate, Quercetin, BHT) individually.…”

Section: Dpph • Radical Scavenging Assaymentioning

confidence: 99%

“…An antioxidant can capture the violet stable DPPH • (1,1-Diphenyl picryl hydrazyl) which is characterized by absorption at 517 nm, and reduce it to the yellow DPPH molecule (1,1-Diphenyl picryl hydrazine) 9,10) . Thus, the reduction of DPPH • to DPPH by accepting a hydrogen ion from the antioxidant leads to decreases in its absorbance, and consequently, the activity of this antioxidant can be evaluated.…”

Section: Dpph Radical Scavenging Activitymentioning

confidence: 99%

Preparation of a Regioselective Quercetin-3-palmitate and Its Using for Boosting Cooking Oil Stability

Soliman

2023

J. Oleo Sci.

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jjocs roots, and bark are reported to possess different types of natural antioxidants 1) . Natural antioxidants are classified into three main categories: phenolic compounds, vitamins, and carotenoids.Quercetin, or 2-(3,4-Dihydroxyphenyl) -5,7-dihydroxy-4H-1-benzopyran-4-one, is a natural polyphenolic flavonoid antioxidant found in berries, apples, cauliflower, tea, cabbage, nuts, and onions. It is widely used as an antiinflammatory, preventing cardiovascular disease, lowering blood pressure, preventing cancer cells, controlling blood sugar, delaying prostate infections, preventing upper respiratory tract infections, and delaying Alzheimer s disease 3) .The moderately hydrophilic nature of quercetin limits its

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Synthesis and Application of a New Amphiphilic Antioxidant

Cited by 3 publications

References 18 publications

Effect of tunisian pomegranate peel extract on the oxidative stability of corn oil under heating conditions

Effect of tunisian pomegranate peel extract on the oxidative stability of corn oil under heating conditions

Synthesis of a new hydrophobic coating film from stearic acid of buffalo fat

Preparation of a Regioselective Quercetin-3-palmitate and Its Using for Boosting Cooking Oil Stability

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