scholarly journals Total Phenolic Content in the petals and Oral Acute Toxicity of gossypitrin on Wistar Rats

2017 ◽  
Vol 5 (11) ◽  
pp. 53-57
Author(s):  
José Gonzalez ◽  
Armando Cuéllar ◽  
Dayné Franco ◽  
Max Monan ◽  
Enmanuel Nossin ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Total Phenolic Content ◽  
Wistar Rats ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Oral Acute Toxicity

Activity, acute and Sub-acute toxicity and safety assesment of the hydroalcholic root extract of Diplotaenia turcica

2018 ◽  
Author(s):  
U. Özdek ◽  
Y. Baþbuðan ◽  
S. Yýldýrým ◽  
M. Boða ◽  
M. Fýrat ◽  
...  
Keyword(s):  
Acute Toxicity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Dose Range ◽  
Chronic Administration ◽  
Total Phenolic ◽  
Control Group ◽  
Root Extract ◽  
Ld50 Value

Diplotaenia turcica is widely utilized in conventional treatment in the east of Turkey. Due to the insufficient data on the safety profile, the acute and sub acute toxicity of Diplotaenia turcica was determined. Furthermore, total phenolic content, flavonoid content and antioxidant activity of the extract were determined. The acute toxicity of hydroalcoholic root extract of Diplotaenia turcica (HREDT) was evaluated in mice after administration of single oral dose at the 5000 mg/kg (acute model) and rat after 28 days orally administration at the dose range of 250, 500 and 1000 mg/kg (subacute model). According to result, the LD50 value of HREDT was found to be greater than 5000 mg/kg. In sub acute toxicity study, no statistically significant differences were observed in the values of hematological and pathological parameters in comparison with control group. It was determined that the glucose, triglyceride, cholesterol and LDL levels exerted a significant effect depending on the HREDT doses. The results from the present study found out that HREDT did not produce any toxic effects or deaths in animals for both single and chronic administration. Additionally, HREDT showed moderate antioxidant activities and exhibited relatively notable total phenolic content.

scholarly journals Total Phenolic Content and Antioxidant Activity of Different Types of Chocolate, Milk, Semisweet, Dark, and Soy, in Cerebral Cortex, Hippocampus, and Cerebellum of Wistar Rats

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Niara da Silva Medeiros ◽  
Roberta Koslowsky Marder ◽  
Mariane Farias Wohlenberg ◽  
Cláudia Funchal ◽  
Caroline Dani
Keyword(s):  
Hydrogen Peroxide ◽  
Lipid Peroxidation ◽  
Antioxidant Activity ◽  
Cerebral Cortex ◽  
Protein Oxidation ◽  
Total Phenolic Content ◽  
Wistar Rats ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Different Types

Chocolate is a product consumed worldwide and it stands out for presenting an important amount of phenolic compounds. In this study, the total phenolic content and antioxidant activity in the cerebral cortex, hippocampus, and cerebellum of male Wistar rats when consuming different types of chocolate, including milk, semisweet, dark, and soy, was evaluated. The total polyphenols concentration and antioxidant activity in vitro by the method of DPPH radical-scavenging test were evaluated in chocolate samples. Lipid peroxidation (TBARS), protein oxidation (carbonyl), sulfhydryl groups, and activity of SOD enzyme in cerebral cortex, hippocampus, and cerebellum of rats treated or not with hydrogen peroxide and/or chocolate were also evaluated. The dark chocolate demonstrated higher phenolic content and antioxidant activity, followed by semisweet, soy, and milk chocolates. The addition of chocolate in the diet of the rats reduced lipid peroxidation and protein oxidation caused by hydrogen peroxide. In the sulfhydryl assay, we observed that the levels of nonenzymatic defenses only increased with the chocolate treatments The SOD enzyme activity was modulated in the tissues treated with the chocolates. We observed in the samples of chocolate a significant polyphenol content and an important antioxidant activity; however, additional studies with different chocolates and other tissues are necessary to further such findings.

scholarly journals Characteristics and Hepatoprotective Activity of the Curcuma heyneana Rhizome Extract toward Wistar Rats Induced by Ethanol

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Marianne Marianne ◽  
Mariadi Mariadi ◽  
Sony Eka Nugraha ◽  
Rosnani Nasution ◽  
Pran Nando Syuhada ◽  
...  
Keyword(s):  
Total Phenolic Content ◽  
Wistar Rats ◽  
Phenolic Content ◽  
Liver Weight ◽  
Hepatoprotective Activity ◽  
Total Flavonoid ◽  
Total Phenolic ◽  
Control Group ◽  
Total Flavonoid Content ◽  
Flavonoid Content

Background: Curcuma heyneana (Valeton & Zijp.) or temu giring has various pharmacological activities. However, its hepatoprotective activity toward ethanol induction has never been carried out. Objectives: The objective of this research was to evaluate the hepatoprotective activity of the C. heyneana rhizome extract toward Wistar rats induced by ethanol. Methods: The research was initiated with the determination of curcuminoid content, total phenolic content, total flavonoid content, and characterization of extract using gas chromatography-mass spectrometry (GC-MS). Hepatoprotective activity was tested using the C. heyneana extract at doses of 50, 100, and 150 mg/kg with 5 g/kg ethanol as an inducer. Aspartate transaminase (AST), alanine transaminase (ALT), liver weight, and macroscopic and microscopic liver were used as parameters. Data were analyzed using analysis of variance (ANOVA). Results: The curcuminoid content of the extract was 1.18% (w/w). Total phenolic content of the C. heyneana extract was 400.37 mg gallic acid equivalent (GAE)/g sample, while total flavonoid content was 27.25 mg quercetin equivalent (QE)/g sample. Nine compounds were identified in the extract. Administration of the extract at doses of 50, 100, and 150 mg/kg kept the liver normal. It was identified macroscopically from the dark red color without any white spot and normal liver weight. Furthermore, at doses of 50, 100, and 150 mg/kg, the extract inhibited AST and ALT elevation, which was significantly different from the negative control group (P < 0.05). The extract also prevented hepatocyte injury that was seen microscopically. Conclusions: It can be concluded that the C. heyneana extract at doses of 50, 100, and 150 mg/kg is effective as hepatoprotective in the liver injury induced by ethanol.

LC-DAD-ESI-MS/MS, total phenolic content, and antioxidant activity of Firmiana simplex

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
MA Ghareeb ◽  
T Mohamed ◽  
AM Saad ◽  
LA Refahy ◽  
MA Sobeh ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Esi Ms

Comparative Study of Antioxidant Activities and Total Phenolic Content of Selected Edible Wild Mushrooms

2011 ◽  
Vol 13 (3) ◽  
pp. 245-255 ◽  
Author(s):  
Hip Seng Yim ◽  
Fook Yee Chye ◽  
Mee Yee Lee ◽  
Patricia Matanjun ◽  
Siew Eng How ◽  
...  
Keyword(s):  
Comparative Study ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Total Phenolic ◽  
Wild Mushrooms ◽  
Edible Wild Mushrooms

Antioxidant capacity of hydroalcoholic extracts of Grewia serrulata DC and Grewia nervosa (Lour.) Panigrahi

2018 ◽  
Vol 9 (1) ◽  
pp. 121
Author(s):  
Mentham Ramesh ◽  
Chandu Babu Rao
Keyword(s):  
Total Phenolic Content ◽  
Superoxide Radical ◽  
Phenolic Content ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Total Flavonoid ◽  
Antioxidant Potential ◽  
Total Phenolic ◽  
Total Flavonoid Content ◽  
Flavonoid Content

The current investigation is intended to evaluate the content of phytochemical constituents and antioxidant potential of hydroalcoholic extracts of stem and root of Grewia serrulata DC (HAESGS & HAERGS) and leaf and bark of Grewia Nervosa (Lour.) panigrahi (HAELGN & HAEBGN). Initially, all the extracts at different concentrations were estimated for their total phenolic content and total flavonoid content. The study was further extended for their antioxidant potential evaluation using various in vitro methods such as 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical, hydroxyl radical and superoxide radical scavenging assays. The total phenolic content (mg gallic acid equivalent per gram of extract) was high in HAELGN (170.82±0.19) and HAERGS (123.00±0.48) than HAESGS (111.2±0.26) and HAEBGN (119.60±0.23). The total flavonoid content (mg quercetin equivalent per gram) is greater in HAERGS (71.24±0.50) and HAESGS (65.68±0.27) than HAELGN (55.82±0.35) and HAEBGN (62.38±0.45). The IC50 values (µg/ml) of different plant extracts inferred that DPPH radical scavenging activity is greater in HAELGN (42.91±0.88) and HAEBGN (53.87±0.35) than HAESGS (126.73±1.20) and HAERGS (88.87±1.25). However, hydroxyl and superoxide radical scavenging activity is more in HAERGS (135.41±1.19 & 88.00±1.42) and HAELGN (172.28±1.91 & 108.163±1.09) than HAESGS (237.3±1.65 & 110.074±0.87) and HAEBGN (204.7±1.04 & 125.54±1.07). The results of present comprehensive analysis demonstrated that both the plants Grewia serrulata DC and Grewia Nervosa (Lour.) panigrahi possess high phenolic, flavonoid contents and potential antioxidant activity, and could be used as a valid source of natural antioxidants and might be utilized for pharmacological screening of various therapeutic activities. Keywords: Grewia serrulata; Grewia Nervosa; Total Phenolic content; Total flavonoid content; Antioxidant potential

EXTRACTION OPTIMIZATION AND ANTIOXIDANT ACTIVITY OF PHENOLIC COMPOUNDS FROM AVOCADO PEEL

2019 ◽  
pp. 49-59
Author(s):  
Nu Linh Giang Ton ◽  
Thi Hoai Nguyen ◽  
Quoc Hung Vo
Keyword(s):  
Antioxidant Activity ◽  
Response Surface Methodology ◽  
Antioxidant Capacity ◽  
Response Surface ◽  
Total Antioxidant Capacity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Quadratic Model ◽  
Total Phenolic ◽  
Total Antioxidant

Avocado peel has been considered as a potential source of natural antioxidants in which phenolics are among the most important compounds. Therefore, this study aims to optimize the extraction process of phenolics using response surface methodology and evaluate the corresponding antioxidant activity. From the quadratic model, the optimal condition was determined including the ethanol concentration 54.55% (v/v), the solvent/solute ratio 71.82/1 (mL/g), temperature 53.03 oC and extraction time 99.09 min. The total phenolic content and the total antioxidant capacity at this condition with minor modifications were 26,74 ± 0,04 (mg GAE/g DW) and 188.06 ± 1.41 (mg AAE/g DW), respectively. The significant correlation between total phenolic content and total antioxidant capacity was also confirmed. Key words: response surface methodology, central composite rotatable design, total phenolic content, total antioxidant capacity, avocado peel

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