Antioxidant Activity of Methanol Extracts Obtained fromPlantagoSpecies

2005 ◽  
Vol 53 (6) ◽  
pp. 1927-1933 ◽  
Author(s):  
Marina Gálvez ◽  
Carmen Martín-Cordero ◽  
Peter J. Houghton ◽  
María Jesús Ayuso
Author(s):  
Young-Min Lee ◽  
Ji-Hyun Bae ◽  
Ho-Young Jung ◽  
Jae-Hyun Kim ◽  
Dong-Sik Park

2019 ◽  
Vol 20 (15) ◽  
pp. 1309-1320 ◽  
Author(s):  
Ahmed M. Younis ◽  
Marwa M. Abdel-Aziz ◽  
Mohamed Yosri

Background:: Mushrooms are deemed as a special delicacy in many countries. They are considered an important cuisine due to their bioactive ingredients and possible health benefits. Methods: Herein, we measured selected biological properties of methanol extracts of Pleurotus citrinopileatus and Boletus edulis fruiting bodies including; in vitro antimicrobial activity, anti-α- glucosidase activity, antioxidant activity, anti-lipase activity and cytotoxic activity against different cancer cells and normal cells. Results: B. edulis methanol extracts showed high antimicrobial and anti-α-glucosidase activity. In contrast, P. citrinopileatus methanol extracts showed superior antioxidant activity indicated by (1,1- diphenyl-2-picrylhydrazyl) DPPH radical scavenging with half maximal inhibitory concentration of IC50 37.4 µg/ml, anti-lipase activities with IC50 65.2 µg/ml and high cytotoxicity activity against HepG2 and HeLa cell lines with IC50 22.8 and 36.7 µg/ml, respectively. Flow cytometric analysis of the cell cycle was used to show apoptotic effects of methanol extracts against HepG2 and HeLa cells. Conclusion: P. citrinopileatus and B. edulis methanolic extracts appear to contain biologically active compounds that might be used to treat some common human diseases.


Author(s):  
YUNITRIANTI ◽  
BERNA ELYA ◽  
ARIKADIA NOVIANI

Objective: Prasman (Ayapana triplinervis [Vahl]) is a plant that can eliminate free radicals through its antioxidant effects. However, little research hasbeen conducted to explore the antioxidant activity of the plant.Methods: A. triplinervis (Vahl) leaves, which were determined by the Indonesian Institute of Sciences (LIPI) Bogor, were used in this study. Meanwhile,extraction was performed using n-hexane, ethyl acetate, and methanol as the solvents. Based on the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay usinga UV–visible spectrophotometer and based on ferric reducing antioxidant power (FRAP) assay using a microplate reader.Results: Based on the DPPH assay using a UV–visible spectrophotometer, n-hexane, ethyl acetate, and methanol extracts with a final concentrationof 25 μg/mL inhibited DPPH radical production by 38.91, 51.03, and 54.06%, respectively. Using the percent inhibition, the IC50 for the ethyl acetateand methanol extracts were 28.71 and 23.472 μg/mL, respectively. Based on FRAP assay using a microplate reader, the n-hexane, ethyl acetate, andmethanol extracts had ferrous equivalent antioxidant capacity values of 460, 828.99, and 940.22 μmol/g, respectively. The methanol extract had thegreatest antioxidant activity. The ethyl acetate and methanol extracts at the initial concentrations contained total phenol levels of 12.06 and 42.11 mgGAE/g extract, respectively, as well as total flavonoid levels of 3.24 and 3.41 mg QE/g extract, respectively.Conclusion: Based on the determination of phenol and flavonoid levels, the methanol extract had the greatest antioxidant effects.


Author(s):  
Muhammad Dawood Shah ◽  
Mohammad Iqbal

Objective: In the present study, the essential oil, methanol extract, and methanol fractions (n-hexane, chloroform, ethyl acetate, and n-butanol) obtained from Commelina nudiflora were investigated for the free radical scavenging effects and phytochemical analysis.Methods: The antioxidative effect of the essential oil, methanol extracts and methanol fractions were evaluated using 2, 2 diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay. Total phenolic and flavonoid contents were determined using Folin-Ciocalteau and aluminium chloride reagents respectively. The phytochemical analyses of the essential oil, methanol extracts and methanol fractions were performed by gas chromatography and mass spectrometry (GCMS). Results: The antioxidant, total phenolic and total flavonoid contents of butanol, ethyl acetate and chloroform fractions were higher followed by methanol extract, hexane fraction and essential oil. Phytochemical analysis indicated the presence of alkaloid, saponin, steroid, phytosterols, triterpenoids and tannins etc. The identified bioactive constituents of essential oil, methanol extract and methanol fractions of C. nudiflora were indole, 2-methoxy-4-vinylphenol, 2-pentadecanone, 6,10,14-trimethyl, phenol, benzyl alcohol, eugenol, phenol, 2, 4-bis (1,1-dimethylethyl), hexadecanoic acid, ethyl ester (palmitic acid ester), n-hexadecanoic acid (palmitic acid), 9, 12-octadecadienoic acid, (linoleic acid) and phytol. All identified bioactive compounds and their derivatives were generally reported with antimicrobial, antioxidant, anti-inflammatory and antitumor properties.Conclusion: The obtained data suggest that the essential oil, methanol extract and methanol fractions of C. nudiflora possess remarkable antioxidant activities and vital phytochemicals. Thus the plant can be a utilized as a potential source of nutraceutical with antioxidant activity.


2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Safaa Qusti ◽  
Haddad A. El Rabey ◽  
Sarah A. Balashram

The present study aimed to estimate the stimulation of pancreas of rats with streptozotocin induced diabetes using 20% (w/w) garden cress seed (Lepidium sativum) and cinnamon methanol extracts. The positive control diabetic group showed a significant increase in fasting blood sugar, lipid peroxide, interleukin-6, carboxymethyl lysine, serum uric acid, urea, creatinine, immunoglobulins, and urine albumin and a significant decrease in antioxidant enzymes, sodium ions, potassium ions, and urine creatinine. Severe histopathological changes in the kidney and pancreas tissues in hyperglycemic rats were also shown in the positive control diabetic group. Meanwhile, the groups that were treated with 20% garden cress seed and cinnamon methanol extracts showed a significant decrease in fasting blood sugar and all elevated abovementioned biochemical parameters and an increase in the lowered ones restoring them nearly to the normal levels of G1. Kidney and pancreas tissues were also ameliorated and restored nearly to the normal status. Both garden cress seed and cinnamon methanol extracts succeeded in controlling hyperglycemia in rats with streptozotocin induced diabetes and ameliorated the biochemical and histopathological changes because of their antioxidant activity acquired by their possession of phenolic phytochemicals.


2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
P. Suganya Devi ◽  
M. Saravana Kumar ◽  
S. Mohan Das

There is increasing interest in natural food colorants like carotenoids and anthocyanins with functional properties. Red sorghum bran is known as a rich source for anthocyanins. The anthocyanin contents extracted from red sorghum bran were evaluated by biochemical analysis. Among the three solvent system used, the acidified methanol extract showed a highest anthocyanin content (4.7 mg/g of sorghum bran) followed by methanol (1.95 mg/g) and acetone (1 mg/g). Similarly, the highest total flavonoids (143 mg/g) and total phenolic contents (0.93 mg/g) were obtained in acidified methanol extracts than methanol and acetone extracts. To study the health benefits of anthocyanin from red sorghum bran, the total antioxidant activity was evaluated by biochemical and molecular methods. The highest antioxidant activity was observed in acidified methanol extracts of anthocyanin in dose-dependent manner. The antioxidant activity of the red sorghum bran was directly related to the total anthocyanin found in red sorghum bran.


2011 ◽  
Vol 38 (9) ◽  
pp. 697 ◽  
Author(s):  
Arvind K. Goyal ◽  
Bharat C. Basistha ◽  
Arnab Sen ◽  
Sushil K. Middha

Hippophae commonly known as sea-buckthorn, is a versatile plant with multipurpose uses including the control of soil erosion, biological nitrogen fixation and medicinal properties. In India, two species of sea-buckthorn; namely, Hippophae salicifolia D. Don and Hippophae rhamnoides L., are very common. H. salicifolia has a shrub-to-tree habit and is restricted to the Himalayan region, whereas H. rhamnoides is bushy, growing at higher altitude in India, and widely distributed in Europe and Asia. In this study, aqueous, methanol and acetone extracts of various parts of female and male plants of H. salicifolia were evaluated for total antioxidant activity, phenolic and flavonoid contents, and correlations were made. The total phenolic and flavonoid content in all the samples ranged from 99 ± 32 to 1459 ± 53 mg gallic acid equivalent g–1, 135 ± 12 to 707 ± 62 mg quercetin equivalent g–1 of dry extract, respectively. The highest free radical (DPPH) scavenging activity was found in methanol extracts of female bark and male leaf. Methanol extracts of male bark and male leaf showed maximum H2O2 activity at a concentration of 1 mg mL–1. Antioxidant activity (FRAP method) ranged from 0.021 to 1.041 at concentrations ranging from 20 to 200 µg mL–1 with a reducing capacity of extracts as water > methanol > acetone. Strong correlation (P < 0.05) was observed between DPPH scavenging activity and total phenolic content from all the extracts under study.


2016 ◽  
Vol 7 ◽  
Author(s):  
Ivette González-Palma ◽  
Héctor B. Escalona-Buendía ◽  
Edith Ponce-Alquicira ◽  
Maura Téllez-Téllez ◽  
Vijai K. Gupta ◽  
...  

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