Antioxidant activity of extracts obtained by different isolation procedures from some aromatic herbs grown in Lithuania

Dapkevičius, A.; Venskutonis, R.; Beek, T.A. van; Linssen, J.P.H.

doi:10.1002/(sici)1097-0010(199805)77:1<140::aid-jsfa18>3.3.co;2-b

Cited by 141 publications

(167 citation statements)

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“…β-Carotene-linoleic acid assay In this assay antioxidant capacity is determined by measuring the inhibition of the volatile organic compounds and the conjugated diene hydroperoxides arising from linoleic acid oxidation (27). The ethyl acetate, methanolic, and hot water extracts of mushroom showed scavenging activity to different extent over a concentration range of 10-50 mg/mL with an inhibition percentage of 30.61-59.23, 30.48-58.52, and 27.27-86.31%, respectively (Fig.…”

Section: Resultsmentioning

confidence: 99%

Antioxidant activity of various extracts from an edible mushroom Pleurotus eous

Govindan¹,

Vadivukkarasi²,

Rajan‐Babu³

et al. 2012

Food Sci Biotechnol

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Pleurotus eous is a pink edible oyster mushroom cultivated in Coimbatore. The aim of present study was to evaluate antioxidant potential of ethyl acetate, methanol, and hot water extracts from P. eous using various in vitro ROS/RNS generated chemical and biological models. Results demonstrated that the graded-dose (2-50 mg/mL) of various extracts markedly scavenged the DPPH, ABTS, and hydroxyl radicals, and showed metal chelating ability, reducing capacity in Fe 3+ /ferricyanide complex, and ferric reducing antioxidant power assays. In biological models, different extracts were found to inhibit lipid peroxidation in brain and liver homogenate. Total antioxidant activity was high in methanolic extract. Hot water extract showed higher amount of total phenol and methanolic extract showed higher amount of flavonoid as compared to other extracts. Based on EC 50 values it can be concluded that the various extracts from P. eous were good in antioxidant properties with methanol and ethyl acetate extracts being more effective. The results of this study showed that various extracts could serve as natural antioxidants owing to their significant antioxidant activity.

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Section: Resultsmentioning

confidence: 99%

Antioxidant activity of various extracts from an edible mushroom Pleurotus eous

Govindan¹,

Vadivukkarasi²,

Rajan‐Babu³

et al. 2012

Food Sci Biotechnol

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“…Ethyl acetate is frequently utilized as an extraction solvent with significant selectivity in the extraction of polyphenolic compounds (Scholz and Rimpler 1989). Natural extracts with proven antioxidant activity generally harbor compounds with a polyphenolic moiety, for example, coumarins, flavonoids, organic acids, carotenoids, and tannins can also be present and function as antioxidants or exert synergistic effects with polyphenolic compounds (Dapkevicius et al 1998). Fig.…”

Section: Discussionmentioning

confidence: 99%

Protective effect of Ecklonia cava on UVB-induced oxidative stress: in vitro and in vivo zebrafish model

Cha

Heo

et al. 2010

J Appl Phycol

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Chronic exposure of the skin to ultraviolet B (UVB) radiation induces oxidative stress, which plays a crucial role in the induction of skin aging. In this study, potential protective effect of extracts of six species of brown seaweeds on UVB radiation-induced cell damage was assessed via cell viability in HaCaT cells. The Ecklonia cava extract showed a profound protective effect against UVB radiation-induced cell damage, compared to that exhibited by other brown seaweed extracts. Thus, E. cava was selected for use in further experiments and was extracted with different solvents. The protection effect was evaluated via DCFH-DA, MTT, and morphological changes in HaCaT cells. Profound protective effect against UVB radiation-induced cell damage was detected in the 100% methanol extract. Partitioning of the 100% methanol extract with different organic solvents revealed a pronounced protective effect in the ethyl acetate fraction. The isolated active compounds were phlorotannins, especially dieckol, as identified using ultra-performance liquid chromatography-tandem mass spectrometry. Among the phlorotannins, dieckol showed a higher protective effect on UVB-induced cell damage in HaCaT cells than the other phlorotannins. Therefore, UVB protection of dieckol was evaluated via DCFH-DA, DAF-FM DA, acridine orange, and morphological changes in zebrafish model. Reactive oxygen species, nitric oxide, and cell death in live zebrafish induced by UVB radiation were reduced by the addition of dieckol. These results indicated that dieckol has potential protective effects on UVB-induced skin damage, which might be useful in pharmaceutical and cosmetic formulations.

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“…A better knowledge was obtained through synergism and antagonism of phenolic acids, diterpenoids, and flavones present together in the extract (7). The extracts from various aromatic plants growing in Lithuania were also analyzed, and some of them were found to possess antioxidative activity (8). However, there are still many plants which have not been thoroughly investigated in terms of their possible antioxidant properties.…”

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confidence: 92%

Antioxidative activity of purple peril (Perilla frutescens L.), moldavian dragonhead (Dracocephalum moldavica L.), and roman chamomile (Anthemis nobilis L.) extracts in rapeseed oil

Povilaityee

Venskutonis

2000

J Americ Oil Chem Soc

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The antioxidant activities (AA) of acetone oleoresins (AO) and deodorized acetone extracts (DAE) of Roman chamomile (Anthemis nobilis L.), purple peril (Perilla frutescens L.), and Moldavian dragonhead (Dracocephalum moldavica L.) were tested in refined, bleached, and deodorized rapeseed oil by the Schaal oven test at 50°C. The addition of 1,000 ppm of AO and DAE of moldavian dragonhead and Roman chamomile significantly stabilized rapeseed oil. Their AA at the used concentration were higher than AA of a synthetic antioxidant, butylated hydroxytoluene (200 ppm), in reducing the rate of peroxide value increase to 20 meq/kg. AA of AO of purple peril was not significant, while DAE of this plant increased autoxidation induction period by 22%. It is also worthy of notice that AA of DAE from all investigated plants was slightly higher than AA of AO obtained from the same plants.Paper no. J9511 in JAOCS 77, 951-956 (September 2000).KEY WORDS:-Antioxidant activity, extracts, Moldavian dragonhead, purple peril, rapeseed oil, Roman chamomile.Autoxidation of lipids, which can be induced by light, temperature, oxygen and some other factors, significantly decreases the quality of food containing fat. It is also known that consumption of such food is associated with aging, heart diseases, stroke, and cancer; therefore, antioxidants are widely used in foods. Because of the possible toxicity of synthetic antioxidants, such as butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA), a search for and development of natural substitutes has been very intensive over the past 10 yr (1).Recently, many antioxidants were isolated from the Labiatae and the Compositae plant families (2-6). Among the isolated natural products, the extracts of some herbs, particularly sage and rosemary, have been shown to possess very strong antioxidant compounds. Reported data (4) indicate that the most effective compounds of sage extracts are carnosol,

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Antioxidant activity of extracts obtained by different isolation procedures from some aromatic herbs grown in Lithuania

Cited by 141 publications

References 0 publications

Antioxidant activity of various extracts from an edible mushroom Pleurotus eous

Antioxidant activity of various extracts from an edible mushroom Pleurotus eous

Protective effect of Ecklonia cava on UVB-induced oxidative stress: in vitro and in vivo zebrafish model

Antioxidative activity of purple peril (Perilla frutescens L.), moldavian dragonhead (Dracocephalum moldavica L.), and roman chamomile (Anthemis nobilis L.) extracts in rapeseed oil

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