scholarly journals The Antioxidant Activity of Yacon (Polymnia sonchifoliaty) and its Application to the Pork Patties as a Natural Antioxidant

2012 ◽  
Vol 32 (2) ◽  
pp. 190-197 ◽  
Author(s):  
Jin-Sun Park ◽  
Hyeong-Sang Kim ◽  
Koo-Bok Chin
Keyword(s):  
Antioxidant Activity ◽  
Natural Antioxidant ◽  
Pork Patties

scholarly journals Purification, structure and anti-oxidation of polysaccharides from the fruit of Nitraria tangutorum Bobr.

RSC Advances ◽  
2018 ◽  
Vol 8 (21) ◽  
pp. 11731-11743 ◽  
Author(s):  
Baotang Zhao ◽  
Jing Liu ◽  
Xin Chen ◽  
Ji Zhang ◽  
Junlong Wang
Keyword(s):  
Antioxidant Activity ◽  
Food Industry ◽  
Natural Antioxidant ◽  
Nitraria Tangutorum ◽  
Good Potential

Antioxidant activity of NTWP-II, evaluated in vitro, indicates that NTWP-II has good potential as a natural antioxidant used in the food industry.

Mechanochemical Treatment of Quercetin and Curcumin to Obtain Eutectic Mixtures with High Antioxidant Activity

CrystEngComm ◽  
2021 ◽  
Author(s):  
Richard Fernando D'Vries ◽  
Valentina Renza-Diaz ◽  
Martin emilio Gonzalez ◽  
Kriss Dayhana Pantoja
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Biological Systems ◽  
Mechanochemical Treatment ◽  
Natural Antioxidant ◽  
Eutectic Mixtures ◽  
High Antioxidant Activity ◽  
The Creation

Quercetin and curcumin are well-known natural antioxidant molecules used to prevent the malignant effect caused by free radicals on biological systems. This work addressed the creation of eutectic mixtures from...

scholarly journals Antioxidant Activity of Averrhoa bilimbi Linn. Leaves Extract Using Two Different Types of Solvents

2021 ◽  
Author(s):  
Raja Nurul Ashiqin Raja Arifin ◽  
Juliana Jumal
Keyword(s):  
Antioxidant Activity ◽  
Gallic Acid ◽  
Skin Diseases ◽  
Water Extract ◽  
Ethanolic Extract ◽  
Natural Antioxidant ◽  
Aluminium Chloride ◽  
Total Phenolic ◽  
Different Types ◽  
Gallic Acid Equivalent

Exposed to the pollution has led to generation of reactive oxygen species (ROS) in human skin. ROS generated cause many skin diseases such as skin-aging, inflammation, melanogenesis and skin cancer. ROS is a family of oxygen-based free radicals that contains or capable of producing an unpaired electron. Antioxidant is a molecule that can inhibit the reaction of free radical from ROS by donating its electron. Averrhoa bilimbi Linn. (AVBL) is one of the potent natural antioxidant belongs to the group of Oxalidaceae which can be widely found in Asia including Malaysia. Traditionally, this plant has been used to treat many diseases such as cough, itchiness, pimple, fever and inflammation. As a result, much attention has been directed towards the studies regarding the potential of this plant in treating disease. The present study was undertaken to assess the antioxidant activity of AVBL leaves extract. The AVBL leaves were extracted using sonicator with ethanol and distilled water as two different types of solvent. The total phenolic content (TPC) and flavonoid content (TFC) of this study were determined by using Folin-Ciocalteu reagent and aluminium chloride colometric assay. Antioxidant activity of the plant extract was tested using 2,2- diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing power (FRAP). From the analyses, water extract of AVBL possessed greater extraction yield (11.231%) as compared to ethanolic extract (5.358 %). However, ethanolic extract of AVBL leaves revealed higher result of TPC (126.4±0.35 mg/g gallic acid equivalent), TFC (32.80±0.37 mg/g quercetin equivalent), DPPH (0.0019±0.0003) and FRAP (41.81±0.45 mg/g gallic acid equivalent). The results of TPC and TFC have strongly positive correlation with antioxidant capacity (r = 1). Thus, it can be concluded that this plant is a potent source of natural antioxidant.

The Effects of Solvents and Extraction Methods on the Antioxidant Activity of P. niruri

2014 ◽  
Vol 68 (5) ◽  
Author(s):  
Hafizah Mohd Hadzri ◽  
Mohd Azizi Che Yunus ◽  
Salman Zhari ◽  
Fahim Rithwan
Keyword(s):  
Antioxidant Activity ◽  
Extraction Method ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Soxhlet Extraction ◽  
Solvent Polarity ◽  
Extraction Methods ◽  
The Other ◽  
Natural Antioxidant ◽  
Total Phenolic

The effects of different types of solvents and extraction method were investigated to determine the presence of antioxidant contents and activity from the P. niruri plant. The aim of this study is to determine which extraction method will give higher natural antioxidant contents and antioxidant activity. The content of natural antioxidant and antioxidant activity were analysed by total phenolic content (TPC), total flavonoid content (TFC) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity assay. The results showed that extracts from a supercritical fluid extraction (SFE) method without the addition of modifier showed the highest content of total phenolic (187.66 mg GAE/ g) and flavonoid (1100.93 mg QE/g) in P. niruri compared to the other methods of extraction with different type of solvents. The extract of P. niruri from different extraction methods showed antioxidant activity on DPPH radical scavenging assay. The soxhlet extraction method by methanol showed the lowest IC50 compared to the other methods of extraction. The results revealed that P. niruri extracts had different content of antioxidant and antioxidant activity. The solvent polarity and different methods of extraction play significant roles in determining the most suitable method for production of antioxidant contents and antioxidant activity from P. niruri extracts.

PERBANDINGAN METODE EKSTRAKSI MASERASI DAN SOKLETASI TERHADAP AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DAUN JAMBU BOL (Syzygium malaccense L.)

2017 ◽  
Vol 3 (1) ◽  
pp. 91
Author(s):  
Henny Nurhasnawati ◽  
Sukarmi Sukarmi ◽  
Fitri Handayani
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Vitamin C ◽  
Extraction Methods ◽  
Natural Antioxidant ◽  
Comparison Of Methods ◽  
Activity Test ◽  
Ic50 Value ◽  
The Difference ◽  
Free Radical Activity

Malay apple (Syzygium malaccense L.) is a plant that can be used for treatment. Antioxidants have the activity to reduce free radical compounds which is one of the causes of the emergence of various diseases in humans. The purpose of this study to determine the comparison of methods of maceration and socletation extraction of antioxidant activity of malay apple leaf. Research stages include sampling, plant determination, making of simplisia, maceration extraction and socletation with 70% ethanol solvent and determine the antioxidant activity by UV-Vis spectrophotometry with DPPH (1,1-diphenyl-2-picrylhydrazyl) as free radical. The parameter is IC50 value that is the concentration of antioxidant compound which can cause 50% loss of DPPH free radical activity. Although both methods show very strong antioxidant activity, it can be concluded that the difference in extraction methods has an effect on the antioxidant activity produced. The results of antioxidant activity test showed that socletation methods gave an average IC50 value of 37.67 ppm, this value is higher than maceration methods with an average IC50 value of 47.80 ppm. Malay apple leaf has the potential as a natural antioxidant, although it has a lower IC50 value than vitamin C which is 9.72 ppm.

scholarly journals Agro-industrial fruit co-products in Colombia, their sources and potential uses in processed food industries: a review

2015 ◽  
Vol 68 (2) ◽  
pp. 7729-7742 ◽  
Author(s):  
Miguel Ángel Alarcón García ◽  
Jairo Humberto López Vargas ◽  
Diego Alonso Restrepo Molina
Keyword(s):  
Antioxidant Activity ◽  
Environmental Pollution ◽  
Dietary Fiber ◽  
Natural Antioxidant ◽  
Processed Foods ◽  
Processed Food ◽  
Food Industries ◽  
High Interest ◽  
Food Matrices ◽  
By Products

Fruit agribusinesses generate large amounts of by-products with diverse characteristics that are inherent to the fruits from which they come, which are a source of great use potential because their compositions include molecules that are currently of high interest (antioxidants and dietary fiber). It is clear that, without correct handling and disposal, theses fruits present a problem due to the environmental pollution that large quantities of residues can generate. Although there are varied uses for agro-industrial co-products, this review focused on the potential uses that co-products could have in different processed food matrices. In this sense, this paper led to the revelation that one of the principal objectives of the reviewed research was to condition co-products for use in processed foods in an attempt to take advantage of the bio-active compounds they contain, principally the natural antioxidant activity, which especially enjoys acceptance by consumers of processed foods.

Sign in / Sign up

Export Citation Format

Share Document