scholarly journals Antioxidant Effects of Ponciri Fructus Bioconversion Extracts as Cosmetic Ingredients

2021 ◽  
Vol 19 (3) ◽  
pp. 477-485
Author(s):  
Gyu Bin Kong ◽  
Oh Hyeok Kwon

Purpose: This study was conducted to investigate the possible use of Ponciri fructus bioconversion extracts as cosmetic ingredients.Method: Total polyphenol, total flavonoid content, and antioxidant effects of Poncirus trifoliata through the ability of diphenylpicrylhydrazyl (DPPH) radical scavenging were used for antioxidant activity determination. The extracts of Poncirus trifoliata were analyzed using an ultraviolet–visible spectrophotometerResults: The total phenolic content was 62.5±4.19 gallic acid equivalent (GAE) mg/g in the case of alcohol extracts and 82.8±2.55 GAE mg/g for other bioconversion extracts. Therefore, total flavonoids content was found to have increased by 32.4%. The total flavonoid content of ethanol extracts was 30.1±3.15 mg/g, whereas that of other bioconversion extracts was 39.5±35.1 mg/g. Therefore, total flavonoids increased by 31.2%. From DPPH radical results, the alcoholic extract increased from 65.5% to 75.5% after bioconversion. Thus, the bioconversion extracts increased by 10% compared with ethanol extracts.Conclusion: Poncirus trifoliata has excellent antioxidant effects, and it showed increased antioxidant activity after the bioconversion, thereby demonstrating its functional bioutility. Therefore, it can be used as an antioxidant material in the cosmetic and food industry.

2011 ◽  
Vol 1 (4) ◽  
pp. 178-181
Author(s):  
A. K. Chaurasia ◽  
B. J. Gogoi ◽  
P. Chattopadhyay ◽  
H. K. Gogoi ◽  
Lokendra Singh

The antioxidant and total flavonoid content (TFC) of solvent extracts of pericarpand pulp of Garcinia cowa Roxb. were evaluated. The antioxidant activitywas evaluated using 2, 2 Ã¢â‚¬Âdi phenyl‐1‐picrylhydrazyl (DPPH) free radicalscavenging assay and beta carotene linoleate bleaching ( βCL) assay. Ascorbicacid and butylated hydroxyl toluene (BHT) were used as the standards. Theethyl acetate extract of the pulp showed the highest inhibition (89.5 ±0.81%) of DPPH radical, along with the highest antioxidant activity (75.1 ±0.60%) in βCL assay and the highest total flavonoid content 67.4 ± 1.41 mgcatechin equivalent (CE)/100g fresh mass at 1000ppm concentration.


2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Thandiwe Alide ◽  
Phanice Wangila ◽  
Ambrose Kiprop

Abstract Objective To investigate the effect of cooking temperature and time on the total phenolic content, total flavonoid content and antioxidant activity of aqueous and ethanolic extracts of garlic. Results The mean total phenolic content of fresh garlic were 303.07 ± 6.58 mg gallic acid equivalent per 100 g (GAE/100 g) and 638.96 ± 15.30 mg GAE/100 g of plant material for the aqueous and ethanolic extracts respectively. The mean total flavonoid content 109.78 ± 6.78 mg quercetin equivalent per 100 g (QE/100 g) and 258.47 ± 12.37 QE/100 g for aqueous and ethanolic extracts respectively. Fourier transform infrared spectral data showed absorptions in the range for carboxylic acids, hydroxyl group, esters, and alcohols, confirming the presence of phenols and flavonoids in the extracts. Cooking temperature had a significant effect on total phenolic content and total flavonoid content while cooking time did not have a significant effect on the phytochemicals and antioxidant activity.


2020 ◽  
Vol 19 (1) ◽  
pp. 61-70
Author(s):  
Erdal Ağlar ◽  
Ahmet Sümbül ◽  
Orhan Karakaya ◽  
Burhan Ozturk

The study was conducted in 2017 in the district of Sivas. In the study, 20 genotypes, which are considered to be different from each other, taking into account the fruit characteristics such as color and size and shape, were determined from the hawthorns that were naturally grown in the flora of Suşheri. At harvest time, the fruit, which would be adequate for pomological and biochemical measurements and analyzes, was harvested. According to the results of the measurements and analyzes in the study, fruit weight was found to vary between 0.68 g and 6.35 g, fruit width was between 10.52 and 29.48 mm and fruit length was between 11.40 and 20.67 mm. The highest firmness values were recorded with the genotype (G) 20 genotype, while the G4 had the lowest values in terms of the firmness values of the fruit flesh. While there are no significant differences between the pH values of the genotypes, the differences between the genotypes in terms of SSC, TA and vitamin C contents are quite significant. It has been found that there are significant differences between the genotypes in terms of total phenolic, total flavonoid and antioxidant activity. The total phenolic content ranged from 218.8 (G17) to 605.8 (G5 and G8) mg GAE kg–1 f.w., while the lowest total flavonoid content was 21.58 (G 17) and the highest total flavonoid content was 67.75 (G9) mg GAE kg–1 f.w. When the antioxidant activity was evaluated, the DPPH values were 1.08 (G17) – 15.43 (14) mmol TE kg–1 f.w., the FRAP values were 15.43 (G16) – 47.23 (G8) mmol TE kg–1 f.w. respectively.


LWT ◽  
2012 ◽  
Vol 46 (2) ◽  
pp. 548-555 ◽  
Author(s):  
Joanna Chlopicka ◽  
Pawel Pasko ◽  
Shela Gorinstein ◽  
Aneta Jedryas ◽  
Pawel Zagrodzki

2015 ◽  
Vol 4 (5) ◽  
pp. 261-266
Author(s):  
M. Borkataky ◽  
B. B. Kakoti ◽  
L. R. Saikia

  The focus of the present study was to determine the association of the anti-oxidant activity of Costus speciosus (Koen Ex. Retz.) Sm. with the total phe-nolic content and the total flavonoid content. The antioxidant activity of the extracts was quantified by diphenylpicrylhydrazyl (DPPH) assay. The total phenolic content was determined by the Folin-Ciocalteau method and the total flavonoid content was determined by the aluminium chloride method. Among the four extracts of the plant, the ethanol extract exhibited the high-est antioxidant activity and also the highest total phenolic and flavonoid con-tents. A strong correlation was observed between the antioxidant activity and the total phenolic and flavonoid contents. A statistical model was de-rived to explain this dependence and a non-linear association was observed between the antioxidant activity and the total flavonoid content.


2021 ◽  
Vol 8 (3) ◽  
pp. 1-4
Author(s):  
Nurlinda Nurlinda ◽  
Virsa Handayani ◽  
Faradiba Abdul Rasyid

AbstractBiancaea sappan  (BS) is traditionally used to treat anticonvulsants, anti-inflammatory, antiproliferative, anticoagulant, antiviral, immunostimulant, antioxidant, and antimicrobial treatments. Flavonoids are found in Secang; flavonoids are secondary metabolites that have antioxidant activity. This study aims to identify the flavonoids using TLC and determination of flavonoids content in BS leaves. Initially, The methanol extract of BS was obtained by maceration with ethanol. The qualitative analysis of flavonoid was using TLC and visualization by sprayed with AlCl3. The determination of total flavonoid content is conducted based on the AlCl3 method with total flavonoids expressed in QE (Quercetin equivalent) at the maximum wavelength of 431 nm. The research results showed that BS leaves contain flavonoids and the total flavonoid content of BS leaf extract is 1.0318 mg QE / g extract.Keywords: Caesalpinia sappan; Flavonoid content, Spectrophotometric


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