Assessment of Antioxidant Activity, Chemical Characterization and Evaluation of Fatty Acid Compositions of Scorzonera Paradoxa Fisch and C. A. Mey

2015 ◽  
Vol 10 (4) ◽  
Author(s):  
Mohammad Ali Nasseri ◽  
Saeideh Sharifi Bigy ◽  
Ali Allahresani ◽  
Mohammad Malekaneh
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Chemical Characterization ◽  
Fatty Acid Compositions

scholarly journals Chemical characterization, fatty acid profile and antioxidant activity of Gustavia macarenensis fruit mesocarp and its oil from the Amazonian region of Ecuador as an unconventional source of vegetable oil

2019 ◽  
Vol 70 (2) ◽  
pp. 298
Author(s):  
J. J. Reyes Mera ◽  
R. Abreu-Naranjo ◽  
J. M. Alvarez-Suarez ◽  
D. Viafara
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
High Performance ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Chemical Characterization ◽  
Total Phenolic ◽  
Linear Discriminant ◽  
Chromatography Analysis

To our knowledge, this study is the first to report on the nutritional characterization, bioactive compounds and antioxidant activity of Amazonian G. macarenensis fruit. The fatty acid profile was determined using a high performance liquid chromatography analysis. The total phenolic content and antioxidant activity were determined using Folin Ciocalteu’s method and by radical scavenging activity, respectively. Moreover, a cluster analysis was carried out in order to classify the G. macarenensis fruit oil according to its fatty acid profile. Seven Fisher linear discriminant functions were obtained from the discriminant analysis. These models allow one to classify new fruits on the basis of their fatty acid profile. A high value for total lipids was obtained (53.57%). Its main components were palmitic and oleic acid. The TPC value (156.49 ± 2.62 mg GAE/Kg of oil) obtained from the G. macarenensis fruit pulp oil is higher than what was reported for some olive oil and Brazilian mango oil varieties.

Antioxidant Activity and Fatty Acid Compositions of Arum dioscoridis Extracts

2011 ◽  
Vol 8 (1) ◽  
pp. 75-82
Author(s):  
Huseyin Uguzlar ◽  
Esra Maltas ◽  
Salih Yildiz
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Fatty Acid Compositions

scholarly journals Genetic and chemical characterization of avocado commercial cultivars avocado of Risaralda Colombia

2020 ◽  
Vol 42 (5) ◽  
Author(s):  
Gloria Edith Guerrero Álvarez ◽  
Ana María López Gutiérrez ◽  
Katalina Ángel Valencia ◽  
Paula Sandoval Mossos ◽  
Diana Lucía Suárez Rozo ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Seed Oil ◽  
Chemical Characterization ◽  
Persea Americana ◽  
Total Phenolic ◽  
Principal Coordinates Analysis ◽  
Principal Coordinates ◽  
Dpph Method

Abstract This research aimed at performing the molecular characterization of commercial Papelillo avocado (Persea americana cv Lorena) cultivars from the municipality of Marsella (Risaralda, Colombia), as well as the physicochemical analysis and antioxidant activity assessment of the pulp and seed. An evaluation of 50 individuals among commercial varieties and possible patterns was performed using 17 microsatellite markers. Proximate analysis of the pulp was performed, and the fatty acid profile of oils, the antioxidant activity by the DPPH and FRAP methods, and the total phenolic content were evaluated. From the cluster analysis, Dice index, and Principal Coordinates Analysis, it became evident that all the individuals showed a tendency to group by populations. In addition, the pulp revealed high fiber contents (4.96–20.64%) and moisture (80.75–82.96%); however, it showed low oil content (5.97–6.56%). The fatty acid found in the highest proportion in seed oil is linoleic acid and that in pulp oil is oleic acid. The antioxidant activity by the DPPH method for seed oil (87.87 to 91.04%) presented a greater inhibition concerning to the pulp oil (20.34% and 24.43%), this same trend was observed by the FRAP method. Concerning the content of total phenols, the seed oil (31.94–76.30 mg GAE g-1) has a higher value than the pulp (30.18–54.30 mg GAE g-1). The set of samples was characterized as a significant source of genetic variability; thanks to the excellent alternatives they provide as rootstocks for commercial varieties such as the ‘Lorena’ cultivars. The chemical classification carried out in this study is of great importance, due to the lack of information about the oil of the ‘Papelillo’ avocado cultivated in different regions of Colombia.

Effect of microwave and oven roasting methods on total phenol, antioxidant activity, phenolic compounds, and fatty acid compositions of coffee beans

2020 ◽  
Vol 44 (11) ◽  
Author(s):  
Mohammed Saeed Alkaltham ◽  
Mehmet Musa Özcan ◽  
Nurhan Uslu ◽  
Ahmad Mohammed Salamatullah ◽  
Khizar Hayat
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Phenolic Compounds ◽  
Total Phenol ◽  
Coffee Beans ◽  
Fatty Acid Compositions

scholarly journals Determination of Antioxidant Activity, Phenolic Compound, Mineral Contents and Fatty Acid Compositions of Bee Pollen Grains Collected from Different Locations

2019 ◽  
Vol 63 (1) ◽  
pp. 69-79 ◽  
Author(s):  
Mehmet M. Özcan ◽  
Fahad Aljuhaimi ◽  
Elfadıl E. Babiker ◽  
Nurhan Uslu ◽  
Durmuş Ali Ceylan ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Fatty Acid ◽  
Phenolic Compounds ◽  
Pollen Grains ◽  
Total Phenolic ◽  
Mineral Contents ◽  
Pollen Sample ◽  
Perm Region ◽  
Fatty Acid Compositions

AbstractThe objective of the present work was to investigate the influence of locations on bioactive propertiest, phenolic compounds and mineral contents of bee pollens. The oil content of pollen grains changed between 3.50% (Alanya) and 6.85% (Russia-Perm Region). The highest total phenolic content (720 mg/100g) and antioxidant activity values (81.4%) were observed in pollens obtained from the Russia-Perm Region and Alanya districts, respectively. Additionally, the highest carotenoid was found in a pollen sample collected from Karaman (Sarıveliler) (98.6 mg/g). The major phenolic compounds were (+)-catechin (66.75-337.39 mg/100g) and quercetin (61.2-1221.7 mg/100g) in all pollen samples. The pollen samples were observed to be a significant source of potassium (3846-6287 mg/kg), phosphorus (2947-5010 mg/kg), calcium (1022-2424 mg/kg) and sulfur (1744-2397 mg/kg). All of the analysis results were significantly affected by supplying locations. The antioxidant activity values of pollens were found partly similar and varied depending on locations. The content of saturated fatty acid (palmitic) was high (20-30%) in the tested pollen samples but did not exceed the content of linoleic acid.

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