Effect of Drying On Antioxidant Activity, Phenolic Compounds and Mineral Contents of Hawthorn and Wild Pear Fruits

2020 ◽  
Vol 62 (4) ◽  
pp. 473-479
Author(s):  
Mustafa Onur Aladag ◽  
Süleyman Doğu ◽  
Nurhan Uslu ◽  
Mehmet Musa Özcan ◽  
Sait Gezgin ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Mineral Contents

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.

ORGANIC ACIDS, SUGARS, PHENOLIC COMPOUNDS AND ANTIOXIDANT ACTIVITY OF Malus floribunda coccinella FRUIT, PEEL AND FLESH

2018 ◽  
Vol 17 (5) ◽  
pp. 47-59
Author(s):  
Hacer Coklar ◽  
Mehmet Akbulut ◽  
Iliasu Alhassan ◽  
Şeyma Kirpitci ◽  
Emine Korkmaz
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Organic Acids ◽  
Fruit Peel ◽  
Malus Floribunda

CARBOHYDRATE PRODUCT FOR THERAPEUTIC AND PROPHYLACTIC PURPOSES

2020 ◽  
pp. 89-94
Author(s):  
Khvorova L.S. ◽  
Byzov V.A.
Keyword(s):  
Antioxidant Activity ◽  
Uric Acid ◽  
Phenolic Compounds ◽  
Mental Stress ◽  
The Body ◽  
Hot Water ◽  
Preventive Effect ◽  
Activity Inhibition ◽  
Medicinal Properties ◽  
Simple Carbohydrates

The article is devoted to the creation of a carbohydrate product with rosehip extract in the form of sweets (glucose Fudge) with a therapeutic and preventive effect aimed at restoring the body of people exposed to intense physical and mental stress and the effects of damaging environmental factors. As carbohydrates in the recipe, simple carbohydrates (glucose) and complex carbohydrates in the form of starch molasses containing (maltose, tri - Tetra - sugars, dextrins) are used. Glucose in the formulation is the main energy ingredient, sweetener and structure-forming component that gives the product a solid consistency due to crystallization. The medicinal effect of the product is provided by rosehip extract. Numerous published studies have established its vitamin, immunostimulating and antioxidant activity, inhibition of uric acid formation and obesity, which are associated with flavonoids, other phenolic compounds, and vitamins. The list of medicinal properties of rosehip extract shows the feasibility of using it in additional nutrition of people in order to prevent diseases. For the formulation of our sweets, the extraction of crushed rosehip fruits was carried out three times with hot water at a temperature of 65-700C, followed by concentration of the extract under vacuum to 25-30% SV. The resulting extract-concentrate was introduced into the formulation in a dosage of 5.5% SV per 100 g of SV glucose Fudge, which provided the necessary dosage for the product when used from 3 (for children) to 10 sweets a day (for adults) for the prevention of colds.

Extraction of Phenolic Compounds with Antioxidant Activity from Beetroot (Beta vulgaris L.)

2018 ◽  
Vol 14 (4) ◽  
pp. 350-357 ◽  
Author(s):  
Raquel P.F. Guine ◽  
Fernando Goncalves ◽  
Clemence Lerat ◽  
Theo El Idrissi ◽  
Eva Rodrigo ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Beta Vulgaris

Stability of phenolic compounds, antioxidant activity and colour parameters of a coloured extract obtained from coloured-flesh potatoes

LWT ◽  
2021 ◽  
Vol 136 ◽  
pp. 110370
Author(s):  
Stefano Ercoli ◽  
Jennifer Cartes ◽  
Pablo Cornejo ◽  
Gonzalo Tereucán ◽  
Peter Winterhalter ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Colour Parameters

scholarly journals Relationships Between the Content of Phenolic Compounds and the Antioxidant Activity of Polish Honey Varieties as a Tool for Botanical Discrimination

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1810
Author(s):  
Monika Kędzierska-Matysek ◽  
Małgorzata Stryjecka ◽  
Anna Teter ◽  
Piotr Skałecki ◽  
Piotr Domaradzki ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Caffeic Acid ◽  
Principal Component ◽  
Total Content ◽  
Component Analysis ◽  
Total Phenolic ◽  
Hydroxybenzoic Acid ◽  
Coumaric Acid

The study compared the content of eight phenolic acids and four flavonoids and the antioxidant activity of six Polish varietal honeys. An attempt was also made to determine the correlations between the antioxidant parameters of the honeys and their polyphenol profile using principal component analysis. Total phenolic content (TPC), total flavonoid content (TFC), antioxidant activity (ABTS) and reduction capacity (FRAP) were determined spectrophotometrically, and the phenolic compounds were determined using high-performance liquid chromatography (HPLC). The buckwheat honeys showed the strongest antioxidant activity, most likely because they had the highest concentrations of total phenols, total flavonoids, p-hydroxybenzoic acid, caffeic acid, p-coumaric acid, vanillic acid and chrysin. The principal component analysis (PCA) of the data showed significant relationships between the botanic origin of the honey, the total content of phenolic compounds and flavonoids and the antioxidant activity of the six Polish varietal honeys. The strongest, significant correlations were shown for parameters of antioxidant activity and TPC, TFC, p-hydroxybenzoic acid, caffeic acid and p-coumaric acid. Analysis of four principal components (explaining 86.9% of the total variance), as a classification tool, confirmed the distinctiveness of the Polish honeys in terms of their antioxidant activity and content of phenolic compounds.

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