scholarly journals The Effect of Laurus nobilis on the Blood and Lenses Antioxidant Activity in Rabbit Under Fat-Enriched Diet

2017 ◽  
pp. 325-333 ◽  
Author(s):  
D. CASAMASSIMA ◽  
F. CHIOSI ◽  
F. VIZZARRI ◽  
M. PALAZZO ◽  
C. COSTAGLIOLA
Keyword(s):  
Antioxidant Activity ◽  
Oral Administration ◽  
Thiobarbituric Acid ◽  
Blood Parameters ◽  
Reactive Oxygen Metabolites ◽  
Laurus Nobilis ◽  
Antioxidant Power ◽  
Total Antioxidant ◽  
Cataract Development ◽  
Plasma Retinol

Fat-enriched diet is strongly associated with cataract development. Laurus nobilis shows antioxidant activity. Herein we evaluated the effect of Laurus nobilis oral administration on the blood and lenses antioxidant activity in rabbits under fat-enriched diet. Sixty rabbits divided into 4 groups were used. One group represented the control (N-CTR). The second group (P-CTR) fed a diet supplemented with 2.5 % of pig fat; the third group (EXP1) received a diet supplemented with 2.5 % of pig fat and 1 g/kg of dried-bay leaves; the fourth group (EXP2) was treated with dried-bay leaves at the rate of 1 g/kg of feed. At baseline and at the end of the study (56 days) the following blood parameters were determined: thiobarbituric acid reactive substances (TBARS), reactive oxygen metabolites (ROMs), total phenols, superoxide dismutase (SOD), oxygen radical absorbance capacity (ORACpca), ferric ion reducing antioxidant power (FRAP), retinol and alfa-tocopherol. At the end of the follow-up, the eyes were enucleated and the antioxidant profile, such as total antioxidant activity (TAC), TBARS, retinol and alfa-tocopherol of lenses was evaluated. Plasma ROMs and TBARS levels were statistically lower in the groups receiving bay leaves integration. A significant increase of plasma retinol, FRAP and ORACpca levels was found in EXP1 and EXP2 groups, whereas plasma alfa-tocopherol resulted statistically higher only in EXP2 group. Bay leaves supplementation enhanced TAC, retinol and alfa-tocopherol in rabbit lens, particularly in EXP2 group; whereas lenses TBARS levels significantly decreased in both treated groups. These findings demonstrate that Laurus nobilis oral administration exerts a protective effect on the risk of cataract development in rabbits under fat-enriched diet.

scholarly journals In vivo antioxidant potential of Teucrium polium, as compared to α-tocopherol

2007 ◽  
Vol 57 (1) ◽  
pp. 123-129 ◽  
Author(s):  
Parisa Hasani ◽  
Nargues Yasa ◽  
Sanaz Vosough-Ghanbari ◽  
Azadeh Mohammadirad ◽  
Gholamreza Dehghan ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Thiobarbituric Acid ◽  
Antioxidant Potential ◽  
Thiobarbituric Acid Reactive Substances ◽  
Antioxidant Power ◽  
Dry Extract ◽  
Total Antioxidant ◽  
Teucrium Polium

In vivo antioxidant potential of Teucrium polium, as compared to α-tocopherol The present study was undertaken to explore antioxidant potential of Teucrium polium (Lamiaceae) in vivo. Antioxidant activity was measured by three tests including inhibition of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical, total antioxidant power (TAP), and thiobarbituric acid reactive substances (TBARS) in serum. Rats received dry extract of T. polium in 80% ethanol by intragastric intubation at doses of 50, 100 and 200 mg kg-1 daily for 14 days. Treatment of rats with T. polium extract showed significant antioxidant activity in the DPPH test as compared to the control. T. polium extract at doses of 50 and 100 mg kg-1 significantly increased rats TAP and decreased TBARS compared to the control. Administration of T. polium at a dose of 200 mg kg-1 per day did not significantly alter serum TAP and TBARS. Antioxidant activities of T. polium at a doses of 50 and 100 mg kg-1 were in all experiments comparable to that of α-tocopherol (10 mg kg-1).

scholarly journals Relations between polyphenols content and antioxidant activity in vine grapes and leaves

2009 ◽  
Vol 26 (Special Issue) ◽  
pp. S25-S32 ◽  
Author(s):  
J. Balík ◽  
M. Kyseláková ◽  
N. Vrchotová ◽  
J. Tříska ◽  
M. Kumšta ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Plasmopara Viticola ◽  
Total Polyphenols ◽  
Antioxidant Power ◽  
Grape Berries ◽  
Caftaric Acid ◽  
Lateral Shoots ◽  
Total Antioxidant ◽  
Ferric Reducing Antioxidant Power ◽  
Botryotinia Fuckeliana

The occurrence and content of some polyphenols and the antioxidant activity of compounds present in grape berries, stems and leaves of <i>Vitis vinifera</i> L. were evaluated. Three white and three blue varieties of grapevine were investigated. The contents were determined of <i>trans</i>-resveratrol, <i>trans</i>-piceid, caftaric acid, tryptophan, catechin, epicatechin, total polyphenols, and flavanols, both in healthy material and in the samples of the plant material infested with microorganisms (<i>Botryotinia fuckeliana</i> Whetzel anamorph <i>Botrytis cinerea</i> Pers.; Uncinula necator (Schw.) Burr; <i>Plasmopara viticola</i> (Berk. & M.A. Curtis) Berl & De Toni). The antioxidant activity of the extracts obtained was determined by different methods: FRAP (Ferric Reducing Antioxidant Power), DPPH (2,2-diphenyl-1-picrylhydrazyl radical) and TAC-PCL (Total Antioxidant Capacity of Photochemiluminescence). The content of <i>trans</i>-resveratrol varied between 0.3–2.3 mg/kg and 0.7–12.1 mg/kg in non-infested and infested grape berries, respectively. The content of <i>trans</i>-piceid between 0.6–2.9 mg/kg and 1.5–6.3 mg/kg in non-infested and infested grape berries, respectively. The content of trans-resveratrol varied between 2.5–10.3 mg/kg and 3.7–20.9 mg/kg in healthy and in infected leaves, respectively. The content <i>trans</i>-piceid varied between 11.3–58.4 mg/kg and 18.5–60.9 mg/kg in the healthy and in the infected leaves, respectively. The highest content of trans-resveratrol was found in stems (16.3–276.3 mg/kg). In young lateral shoots, the highest levels of <i>trans</i>-piceid (12.6–99.7 mg/kg) and caftaric acid (474–2257 mg/kg) were determined. The infested grape berries showed a higher antioxidant activity, which was most closely correlated with the content of total polyphenols (correlation coefficient = 0.8336–0.9952).

scholarly journals Chemical Characterization and Antioxidant Activity of Cedrus atlantica Manetti Tar (Atlas Cedar Tar)

2020 ◽  
Vol 8 (2) ◽  
pp. 244-255
Author(s):  
Inssaf Skanderi ◽  
Ourida Chouitah
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Capacity ◽  
Total Antioxidant Capacity ◽  
Condensed Tannins ◽  
Chemical Characterization ◽  
Antioxidant Power ◽  
Cedrus Atlantica ◽  
Total Antioxidant ◽  
Ferric Reducing Antioxidant Power ◽  
Total Polyphenolic Content

Cedrus atlantica Manetti Tar was analyzed by gas chromatography coupled to mass spectrometry, it was subjected to analyzes to know their total polyphenolic and condensed tannins contents, also their Ferric-reducing antioxidant power and Total antioxidant capacity. Chemical characterization identified 88 constituents where Himachalene and α-atlantone isomers (14.51 % - 4.07 %), Calacorene (3.52 %) and ar-Turmerone 3.35 %, were the major components, the total polyphenolic content and condensed tannins contents were 57.15 ± 0.15 milligrams equivalent of gallic acid /g tar and 4.41 ± 0.05 milligrams equivalent of catechin /g tar respectively .This extract showed remarkable Ferric-reducing antioxidant power with effective concentration equal to 50 ± 0.075 mg /mL ± 0,00028 and total antioxidant capacity equal to 262.75 mg equivalents of ascorbic acid /g tar ± 14,43. The experimental results indicated that our tar has promotive antioxidant activity.

scholarly journals The Antioxidant Effect of Colombian Berry (Vaccinium meridionale Sw.) Extracts to Prevent Lipid Oxidation during Pork Patties Shelf-Life

Antioxidants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1290
Author(s):  
Márcio Vargas-Ramella ◽  
José M. Lorenzo ◽  
Sol Zamuz ◽  
María Esperanza Valdés ◽  
Daniel Moreno ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Lipid Oxidation ◽  
Radical Scavenging ◽  
Meat Products ◽  
Thiobarbituric Acid ◽  
Total Anthocyanin ◽  
Antioxidant Power ◽  
Pork Patties ◽  
Amount Of Knowledge ◽  
The Impact

A scarce amount of knowledge about the use of Colombian berry (CB) in meat products is available in the literature. This work studies the impact of the addition of CB extracts (CBE) on pork patties at three different concentrations in the range 250–750 mg/kg. CBE were characterized in terms of their polyphenolic profile and antioxidant activity [1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging capacity, half maximal inhibitory antioxidant concentration (IC50), 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS), ferric reducing antioxidant power assay (FRAP) and oxygen radical absorbance capacity (ORAC) tests)]. After pork patties elaboration, instrumental and sensorial colour, as well as lipid oxidation measured as thiobarbituric acid reactive substances assay (TBARS) values, were evaluated for 10 days of refrigerated storage in a modified atmosphere (80% O2–20% CO2). The total anthocyanin composition represented 35% of the polyphenolic substances of the CBE, highlighting high contents in cyanidin derivatives. Additionally, other flavonoids (quercetin and kaempferol compounds) and phenolics acids, substances positively related to antioxidant activity, were identified and quantified. In addition, the incorporation of CBE resulted in improvements in colour and lipid stability of pork patties, especially for the highest concentration used. Our findings demonstrated that CBE could be added to pork patties without impairing their sensorial profile. Overall, our results indicate that the use of CBE as a source of natural antioxidant, natural colourant, or even as a functional ingredient could be promising, but more studies are necessary to confirm it.

scholarly journals Quality, Nutritional, Volatile and Sensory Profiles and Consumer Acceptance of Fondillón, a Sustainable European Protected Wine

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1701
Author(s):  
Hanán Issa-Issa ◽  
Francisca Hernández ◽  
Leontina Lipan ◽  
David López-Lluch ◽  
Ángel A. Carbonell-Barrachina
Keyword(s):  
Antioxidant Activity ◽  
Condensed Tannins ◽  
Consumer Acceptance ◽  
Sensory Profile ◽  
The European Union ◽  
Antioxidant Power ◽  
Volatile Acidity ◽  
Total Antioxidant ◽  
Sustainable Irrigation ◽  
Sensory Profiles

Sustainable irrigation strategies in Southeast Spain (one of the most arid regions in Europe) are essential to fight against desertification and climate change mitigation. In this way, Fondillón production is based on rain-based vineyards, over-ripe Monastrell grapes, and non-alcohol fortification. Thus, Fondillón is a naturally sweet red wine, protected within the Alicante Denomination of Origin, recognized by the European Union in its E-bachus database. The study aim was to evaluate the effect of the aging (solera factor) on Fondillón: (i) basic enological parameters (e.g., total, and volatile acidity), (ii) chromatic characteristics, (iii) antioxidant activity (ABTS•+, FRAP and DPPH•), (iv) total contents of condensed tannins and anthocyanins, (v) volatile composition, (vi) sensory profile, and (vii) overall liking. Experimental data proved that the wine (1960 solera) with the highest total contents of condensed tannins and anthocyanins and total antioxidant activity was the most liked by Spanish consumers. Experimental results clearly established a positive relationship among Fondillón chemical composition, its antioxidant activity, and overall consumer liking. Exceptional harvest with grapes having extremely high antioxidant power (e.g., 1960 solera) will result, even more than 50 years later, in high quality wines with high consumer acceptance and a high monetary worth.

scholarly journals Antioxidant activity of blackberry (Rubus sp.) genotypes from the Southern Region of Brazil

2013 ◽  
Vol 31 (1) ◽  
Author(s):  
GABRIELA ELISA HIRSCH ◽  
MÁRCIA VIZZOTTO ◽  
ANA LUCIA ABOY ◽  
AMÉLIA TEREZINHA HENRIQUES ◽  
TATIANA EMANUELLI
Keyword(s):  
Antioxidant Activity ◽  
Radical Scavenging ◽  
Thiobarbituric Acid ◽  
Thiobarbituric Acid Reactive Substances ◽  
Frap Assay ◽  
Antioxidant Power ◽  
Ferric Reducing Antioxidant Power ◽  
Tbars Assay ◽  
Β Carotene ◽  
Phenolic Extracts

The antioxidant activity and bioactive compounds of different blackberry fruit genotypes from the major Brazilian producer region (three cultivars and four selections) were evaluated and compared to the Cherokee cultivar. Phenolic and anthocyanic extracts were obtained and evaluated for each fruit genotype. The phenolic extracts of selections 02/96 and 07/001 presented higher antioxidant activity than those of cultivars in most assays. This activity was partially correlated to the higher amount of total phenolics in these samples. Thus, the phenolic compounds are probably the major responsible for the antioxidant activity in the diphenyl-2-picrylhydrazyl radical scavenging assay (DPPH), ferric reducing antioxidant power (FRAP) assay and thiobarbituric acid reactive substances (TBARS) assay. Quercetin seems to be responsible for the antioxidant activity of blackberry phenolic extracts in the β-carotene bleaching assay. Concerning anthocyanic extracts, the selection 02/96 and Cherokee cultivar from harvest 2007 had higher antioxidant activity than the other genotypes in most assays. Anthocyanins appear to be the major responsible for the antioxidant activity of anthocyanic extracts in the DPPH and FRAP assays, although ascorbic acid also contributed to the DPPH antioxidant activity. Selection 02/96 appears to have higher antioxidant activity than the commercial cultivars cultivated in the southern Brazil and appears to be promising for nutritional and health purposes.

scholarly journals Lawsonia inermis essential oil: extraction optimization by RSM, antioxidant activity, lipid peroxydation and antiproliferative effects

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Asma Elaguel ◽  
Imen Kallel ◽  
Bochra Gargouri ◽  
Ichrak Ben Amor ◽  
Bilel Hadrich ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Antioxidant Activities ◽  
Oil Extraction ◽  
Chemical System ◽  
Lawsonia Inermis ◽  
Antioxidant Power ◽  
Antiproliferative Effects ◽  
Total Antioxidant

Abstract Background The present study was focused on the optimization of yield of the essential oil extraction from leaves of Lawsonia inermis, and the determination of chemical composition, antioxidant activities, and lipid peroxydation and antiproliferative effects. Methods Henna essential oil (HeEO) were extracted by hydrodistillation; the identification of the chemical composition were done by GC/MS method. HeEO was analyzed for antioxidant power in: (1) chemical system by the DPPH test, the ABTS test and the total antioxidant activity test; and (2) in biological system by lipid peroxydation tests (MDA and DC) in cells culture. The cytotoxicity effects of HeEO were assessed using MTT assay against Raji and HeLa cell lines. Results The optimal extraction yield was 6.8 g/100 g d.b. HeEO showed a remarkable anti-oxidant activities including DDPH (42%), ABTS (87%) and the power of ammonium phosphomolybdate (2992 ± 230 mg of HeEO by equivalent to 1 mg of vitamin C in terms of total antioxidant power). Conclusion Beyond notable antioxidant activities of the HeEo, our results showed a significant decrease in the production of ERO in the Raji cell line. The anti-tumor power of the Henna essential oil shows an interesting cytotoxicity effect (IC50 at 0.26 μg/mL for Raji and at 1.43 μg/mL for HeLa) with a total mortality percentage reaching 60%, for both.

scholarly journals Microencapsulated and Lyophilized Propolis Co-Product Extract as Antioxidant Synthetic Replacer on Traditional Brazilian Starch Biscuit

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6400
Author(s):  
Rodrigo Rodrigues ◽  
Denise Bilibio ◽  
Manuel S.V. Plata-Oviedo ◽  
Edimir A. Pereira ◽  
Marina L. Mitterer-Daltoé ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Lipid Oxidation ◽  
Storage Period ◽  
Thiobarbituric Acid ◽  
Total Phenolic ◽  
Thiobarbituric Acid Reactive Substances ◽  
Antioxidant Power ◽  
Chromatography Analysis ◽  
Baked Goods ◽  
Gas Chromatography Analysis

The residue from commercial propolis extraction may have significant antioxidant power in food technology. However, among the challenges for using the propolis co-product as an inhibitor of lipid oxidation (LO) in baked goods is maintaining its bioactive compounds. Therefore, this study aimed to determine the propolis co-product extracts’ capability to reduce LO in starch biscuit formulated with canola oil and stored for 45 days at 25 °C. Two co-product extracts were prepared: microencapsulated propolis co-product (MECP) (with maltodextrin) and lyophilized propolis co-product (LFCP), which were subjected to analysis of their total phenolic content and antioxidant activity (AA). Relevant antioxidant activity was observed using the methods of analysis employed. The spray-drying microencapsulation process showed an efficiency of 63%. The LO in the biscuits was determined by the thiobarbituric acid reactive substances (TBARS) test and fatty acid composition by gas chromatography analysis. Palmitic, stearic, oleic, linoelaidic, linoleic, and α-linolenic acids were found in biscuits at constant concentrations throughout the storage period. In addition, there was a reduction in malondialdehyde values with the addition of both propolis co-product extracts. Therefore, the propolis co-product extracts could be utilized as a natural antioxidant to reduce lipid oxidation in fatty starch biscuit.

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