scholarly journals NUTRITIONAL AND BIOLOGICAL VALUE OF FRUITS OF CRATAEGUS OXYACANTHA L.

2020 ◽  
pp. 265-275
Author(s):  
Lyubov' Nikolayevna Skrypnik ◽  
Irina Petrovna Melnichuk ◽  
Yulia Vladimirovna Koroleva
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Organic Acids ◽  
Food Additives ◽  
Raw Material ◽  
Transport Infrastructure ◽  
Anthropogenic Factors ◽  
Total Phenolic ◽  
Phytochemical Study

The work involved the phytochemical study of hawthorn fruits (Crataegus oxyacantha L.). Hawthorn fruits were collected in areas with low anthropogenic impact (landscape and recreational areas) and in areas with the transport infrastructure in Kaliningrad city. The content of total phenolic compounds and subgroups: catechins, leucoanthocyanins, flavonoids, tannins); monosaccharides (glucose and fructose), pectins, organic acids, ascorbic acid, macro- and microelements, as well as antioxidant activity in hawthorn fruits were studied. The influence of the anthropogenic factor on the variability of their chemical composition was shown. It has been established that hawthorn fruits from areas with minimal impact of anthropogenic factors can accumulate phenolic compounds (up to 15.9 mg/g), leucoanthocyanins (up to 1.5 mg/g), tannins (up to 6.5 mg/g ), catechins (up to 4.1 mg/g), flavonoids (up to 6.0 mg/g), fructose (up to 14.1%), pectin (up to 11.6%), organic acids (1.45%), ascorbic acid (up to 49.3 mg/100 g), calcium (up to 12.12 mg/g), zinc (up to 39.12 mg/kg) more intensively and demonstrated higher antioxidant activity (up to 9.7 mg/g). The cluster analysis carried out on the content of phytochemicals proved the dependence of the accumulation of nutrients in hawthorn fruits on the growing conditions of plants. The obtained results allow us to consider the fruits of hawthorn C. oxyacantha as a valuable raw material for use as food additives for various purposes.

scholarly journals Antioxidant Compounds, Mineral Content and Antioxidant Activity of Several Tomato Cultivars Grown in Southwestern Romania

2013 ◽  
Vol 41 (1) ◽  
pp. 136 ◽  
Author(s):  
Violeta NOUR ◽  
Ion TRANDAFIR ◽  
Mira E. IONICA
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Trace Elements ◽  
Phenolic Compounds ◽  
Total Phenolics ◽  
Antioxidant Activities ◽  
Fruit Shape ◽  
Total Phenolic ◽  
Antioxidant Compounds ◽  
Tomato Cultivars

Ten indeterminate tomato cultivars differing in fruit shape and typology, grown simultaneously in a greenhouse from Oltenia (Southwestern Romania) and harvested at red ripe stage, were investigated for the contents in ascorbic acid, lycopene, β-carotene, total phenolics, minerals (K, Na, Ca and Mg) and trace elements (Fe, Cu, Mn, Cr, Zn and B). In addition, their antioxidant activities were determined. Significant differences were found among tomato cultivars in all studied antioxidant compounds, as well as in the antioxidant activity. Ascorbic acid ranged from 91.9 to 329.7 mg kg-1 fw, lycopene ranged from 19.7 to 49.0 mg kg-1 fw, while total phenolic compounds varied between 300.2 and 557.8 mg kg-1 fw. Antioxidant activity ranged from 0.81 mmol Trolox kg-1 fw to 1.74 mmol Trolox kg-1 fw and it was significantly correlated to total phenolics content (r = 0.91; p< 0.05). The cocktail type cultivar ‘Tiger’ and the cherry type cultivar ‘Belle’ proved to be the most powerful in antioxidant activity and phenolic compounds while the rectangular plum shaped cultivar ‘Porto’ recorded the highest average lycopene content. A valuable cultivar proved to be the brownish red ‘Sacher’ which registered among the highest contents of phenolics, lycopene and ascorbic acid. Mineral and trace elements contents were also significantly affected by cultivars. Values recorded for K, Ca and Mg ranged from 2139.6 to 3056.9 mg kg-1, 137.7 to 325.8 mg kg-1 and 27.3 to 168.7 mg kg-1 respectively.

scholarly journals Berries and Leaves of Actinidia kolomikta (Rupr. & Maxim.) Maxim.: A Source of Phenolic Compounds

Plants ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 147
Author(s):  
Laima Česonienė ◽  
Paulina Štreimikytė ◽  
Mindaugas Liaudanskas ◽  
Vaidotas Žvikas ◽  
Pranas Viškelis ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Radical Scavenging ◽  
Total Content ◽  
Ascorbic Acid Content ◽  
Free Radical Scavenging ◽  
Raw Material ◽  
Quantitative Composition ◽  
Pharmaceutical Industries

Berries of Actinidia kolomikta (A. kolomikta) are known for high ascorbic acid content, but the diversity of phenolic compounds has been little studied. The present research aimed to investigate phenolic compounds and antioxidant activity in berries and leaves of twelve A. kolomikta cultivars. The UHPLC-ESI-MS/MS technique was used to determine differences among cultivars in the quantitative composition of individual phenolic compounds. Antioxidant activity was determined by DPPH• free radical scavenging and CUPRAC methods. In the present study, 13 phenolic compounds were detected in berries, whereas leaves contained 17 phenolic compounds. Flavonols were the primary class found in both berries and leaves; other identified phenolic compounds were flavan-3-ols, flavones and, phenolic acids; and dihydrochalcone phloridzin was identified in the leaves. The amount and variety of phenolic compounds in berries and leaves and antioxidant activity were found to be cultivar-dependent. The highest total content of phenolic compounds was found in the leaves of the cultivar ‘Aromatnaja’ and in the berries of the cultivar ‘VIR-2’. Results of this study have confirmed that berries and leaves of A. kolomikta could be a valuable raw material for both food and pharmaceutical industries.

scholarly journals Effect of Drum-Drying Conditions on the Content of Bioactive Compounds of Broccoli Pulp

Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1224
Author(s):  
Constanza Córdova ◽  
Juan P. Vivanco ◽  
Julián Quintero ◽  
Andrea Mahn
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Ascorbic Acid Content ◽  
Rotation Frequency ◽  
Total Phenolic ◽  
Operation Costs ◽  
Drum Drying ◽  
Attractive Option ◽  
Drying Conditions

This work studied the effect of drum-rotation frequency, drum temperature, and water-to-pulp ratio in a double-drum drier on the content of sulforaphane, glucoraphanin, total phenolic compounds, ascorbic acid, and antioxidant activity of broccoli pulp through a multilevel factorial design with one replicate. Drum-drying conditions did not significantly affect sulforaphane content, unlike glucoraphanin, however the poor adherence of broccoli pulp resulted in a final product with undefined shape and heterogeneous color. On the other hand, antioxidant activity was unevenly affected by drying conditions; however, drum-rotation frequency affected it in the same way that phenolic compounds and ascorbic acid, showing a concordant behavior. The ascorbic acid content decreased significantly after drying, and it was highly dependent on the experimental factors, resulting in a regression model that explained 90% of its variability. Drum-rotation frequency of 5 Hz, drum temperature of 125 °C, and water-to-pulp ratio of 0.25 resulted in an apparent increase of sulforaphane and phenolic compounds content of 13.7% and 47.6%, respectively. Drum drying has great potential to fabricate dehydrated broccoli-based foods with functional properties. Besides, since drum drying has low investment and operation costs, it represents a very attractive option for the industrialization of broccoli derivatives.

scholarly journals Mathematical modeling of drying passion fruit peel and influence of temperature on color, phenolic compounds and antioxidant activity

2014 ◽  
Vol 5 (2) ◽  
pp. 17 ◽  
Author(s):  
Sabrina Fortini Spoladore ◽  
Camila Andressa Bissaro ◽  
Tatiane Francielli Vieira ◽  
Marcos Vieira da Silva ◽  
Charles Windson Isidoro Haminiuk ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Passion Fruit ◽  
Raw Material ◽  
Total Phenolic ◽  
Fruit Peel ◽  
High Fiber ◽  
Different Temperatures ◽  
Influence Of Temperature On ◽  
Higher Temperature

<p><em>The passion fruit peel is a byproduct from juice industry and when it is not discarded or used as fertilizer or feed, can serve as raw material for industry pectin or other&nbsp; functional ingredients, due to its high fiber content and minerals. The objective of this study was to evaluate the influence of drying temperature on the characteristics of color, phenolic compounds and antioxidant activity of passion fruit peel. We also analyzed the ability of some mathematical models in representing the drying. The product reached constant humidity at 240 minutes for drying at 90 &deg;C, 300 minutes to 80 &ordm;C, 390 minutes to 70 &ordm;C and 360 minutes to 60&nbsp;&ordm;C. The Page model was the best to represent the process at all temperatures studied (R<sup>2</sup> from 0.982 to 0.998). Significant color variations were observed during the trial at different temperatures. The total phenolic compounds and antioxidant activity identified in fresh samples also showed variations in their levels at the end of the drying process. A decrease in antioxidant capacity occurred and an increasing in the phenolic compounds with higher temperature.</em></p><p>DOI: 10.14685/rebrapa.v5i2.163</p><p>&nbsp;</p><p><em><br /></em></p>

scholarly journals Phytochemical characterization, antioxidant potential and antibacterial activity of the Croton argyrophylloides Muell. Arg. (Euphorbiaceae)

2023 ◽  
Vol 83 ◽  
Author(s):  
T. S. Neri ◽  
K. W. L. Silva ◽  
L. P. S. Maior ◽  
S. K. Oliveira-Silva ◽  
P. V. M. Azevedo ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Chemical Constituents ◽  
Total Phenolic ◽  
Plant Sample ◽  
Total Phenol Content ◽  
Leaf Extracts ◽  
Phytochemical Study ◽  
Antioxidant Power ◽  
Dpph Method

Abstract Croton argyrophylloides Muell. Arg., from the Euphorbiaceae family, popularly known as marmeleiro prateado or sacatinga, is a plant from the Caatinga biome commonly found in Brazil’s northeastern region. The present study aimed to evaluate the antioxidant activity of the species. The phytochemical study was performed through qualitative analysis of chemical constituents and quantitative determination of the total phenol content through the Folin-Ciocalteu test. The qualitative and quantitative antioxidant tests were performed using the DPPH method (2.2 diphenyl-1-picryl hydrazil) and ferric reducing antioxidant power (FRAP). The minimum inhibitory concentration (MIC) was determined by microdilution in 96-well plates. The ethanolic extract of the leaves of C. argyrophylloides manifested antioxidant action in the quantitative DPPH test with a significant bioactivity of 84.70 AAO% in 500 µg/mL, with an EC50 of 236.79. The content of total phenolic compounds was 946.06 mg of gallic acid equivalents/g of sample, and total flavonoids was 58.11 mg of quercetin equivalents/g of sample, the result obtained for FRAP was 15294.44 µM Trolox/g of sample and ABTS was 718 μM Trolox of sample. The prospecting of the chemical constituents of the leaves of C. argyrophylloides revealed the presence of the main compounds that manifests the antioxidant activity and it was proven by the DPPH method that there is antioxidant activity in the analyzed sample, in addition to demonstrating a significant content of phenolic compounds and total flavonoid content in the species, which corroborates the antioxidant activity of the plant sample. The leaf extracts presented growth inhibition halos of 10 and 12 mm upon Staphylococcus aureus ATCC 25923.

Extraction of Phenolic Compounds of six Algerian date (Phoenix dactylifera L.) cultivars from Ain-Saleh region, using Reflux method and Screening of Antioxidant Activity in vitro

2021 ◽  
pp. 161-167
Author(s):  
Habchi A. ◽  
Dekmouche M. ◽  
Hamia C. ◽  
Saidi M. ◽  
Yousfi M. ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Methanol Extract ◽  
Phoenix Dactylifera ◽  
Total Phenolic ◽  
Flavonoid Content ◽  
Phoenix Dactylifera L ◽  
Phenolic And Flavonoid

This study was designed to evaluate the antioxidant activity of phenolic compounds for six cultivars of date from In Saleh region (Phoenix dactylifera L.), which were extracted by reflux with solvents, 80% methanol and 70% aceton after the phenolic and flavonoid content were estimated. The total phenolic content (TPC) and total flavonoid content (TFC) of the extracts were measured using Folin–Ciocalteau and aluminum chloride colorimetric methods, respectively. Antioxidant activity acetone/H2O and methanol/H2O extracts using ABTS, DPPH, FRAP, TAC and CUPRAC assays. The results showed that methanolic solvent reflux gives better yields. The highest level of phenolic compounds for all dates varieties was found in the 80% methanol extract. This level ranged from 8.04 ± 0.14 to 46.81 ± 1.22 mg GAE/100 g fresh weight and flavonoid content was observed relatively low for both two solvents. However, extraction into 70% acetone gave the highest antioxidant activity with all assay. These results showed that dates had strongly scavenging activity on DPPH reaching 3.12 µg/mL in methanol/H2O from Cul1 (6.9 µg/mL with ascorbic acid), also on ABTS reaching 6.51 µg/mL in acetone/H2O from Cul2 (104.98 µg/mL with ascorbic acid).

scholarly journals Physical and chemical characterization and quantification of bioactive compounds in berries and berry jams

2017 ◽  
Vol 38 (4) ◽  
pp. 1853 ◽  
Author(s):  
Lorena Mendes Rodrigues ◽  
Diene France de Souza ◽  
Elisângela Aparecida da Silva ◽  
Thais Odete de Oliveira ◽  
Juliana Pinto de Lima
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Bioactive Compounds ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Significant Loss ◽  
The Body ◽  
Soluble Solids ◽  
Total Phenolic

Brazil is the third largest producer of fresh fruits in the world. Among fruits, berries such as strawberry, blueberry and blackberry can be highlighted for the benefits they provide to the body, owing to their presence of bioactive compound content. The phenolic compounds, especially anthocyanins and ascorbic acid, are examples of bioactive compounds that mainly function in the body as antioxidants. However, the processing steps that lead to the generation of derivatives from these fruits, are damaging to these compounds, often leading to their loss. Thus, the aim of this study was to physically and chemically characterize fresh berries (strawberry, blueberry and blackberry) and their jams, and also to quantify and to evaluate the antioxidant activity of bioactive compounds in berries and their jams. The following parameters were analyzed: moisture, ash, pH, titratable acidity, soluble solids, and color. The levels of total phenolic compounds, total anthocyanins, ascorbic acid content and antioxidant activity were measured. We concluded that there were significant differences in the chemical composition of berries and jams. There was also a significant loss of bioactive compounds due to processing, nevertheless these jams remain good sources of bioactive compounds, and are still considered important to promote some favorable health effects.

scholarly journals Antioxidant and cytotoxic activities of Parabaena sagitatta Miers

2013 ◽  
Vol 41 (2) ◽  
pp. 155-158
Author(s):  
TM Quadery ◽  
F Islam ◽  
M Ahsan ◽  
CM Hasan
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Brine Shrimp ◽  
Phenolic Content ◽  
Soluble Fraction ◽  
Total Phenolic ◽  
Cytotoxic Activities ◽  
Total Antioxidant Activity ◽  
Total Antioxidant

A methanolextract of the leaves of Parabaena sagitatta Miers and its petroleum ether, carbon tetrachloride, dichloromethane, ethylacetate and aqueous soluble partitionates were evaluated for antioxidant activity by 1,1-diphenyl-2-picrylhydrazyl (DPPH), Folin-Ciocalteau reagent and phosphomolybdenum total antioxidant assays by using butylated hydroxytolune (BHT) and ascorbic acid as standards. The dichloromethane soluble fraction demonstrated the presence of significant amount of phenolic compounds 61.06 ± 0.54 mg GAE/g of extract and also has moderate antioxidant activity IC50 50.62 ± 0.25 ?g/ml. A positive correlation (R2), 0.969 was observed between total phenolic content and total antioxidant activity of P. sagitatta. The general toxicity was determined by brine shrimp lethality bioassay where the dichloromethane LC50DOI: http://dx.doi.org/10.3329/bjb.v41i2.13441 Bangladesh J. Bot. 41(2): 155-158, 2012 (December)

scholarly journals Castanea sativaMill. Flowers amongst the Most Powerful Antioxidant Matrices: A Phytochemical Approach in Decoctions and Infusions

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Márcio Carocho ◽  
Lillian Barros ◽  
Albino Bento ◽  
Celestino Santos-Buelga ◽  
Patricia Morales ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Organic Acids ◽  
Phenolic Compound ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Free Sugars ◽  
Hydrolyzable Tannins ◽  
Chestnut Tree ◽  
Phytochemical Profile

Infusions and decoction of chestnut tree flowers have been used for different medical purposes, but their phytochemical profile and antioxidant activity are still mostly unknown. Herein, decoctions and infusions of flowers from the two most appreciated chestnut cultivars (longalandjudia) in Trás-os-Montes, Portugal, were prepared and characterized with regard to their content in free sugars, organic acids, and phenolic compounds, such as flavonoids and hydrolyzable tannins, and their antioxidant activity. Overall, the decoction of the cultivarjudiawas the sample with both the highest quantity of flavonoids and antioxidant activity. The phenolic compound with the highest abundance in all samples was trigalloyl-HHDP-glucoside, followed by pentagalloyl glucoside. The sample with the highest quantity of total phenolic compounds wasjudiainfusion, closely followed bylongaldecoction, which also gave the highest quantities of ellagitannins. Regarding sugars and organic acids, the profiles were more similar. These results corroborate ancestral claims of the health benefits of infusions and decoctions of chestnut flowers.

scholarly journals Polyphenols, L-Ascorbic Acid, and Antioxidant Activity in Wines from Rose Fruits (Rosa rugosa)

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2561
Author(s):  
Andrzej Cendrowski ◽  
Marcin Królak ◽  
Stanisław Kalisz
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Quality Characteristics ◽  
Raw Material ◽  
Rosa Rugosa ◽  
Fruit Wine ◽  
High Antioxidant Activity ◽  
The Stability

The aim of the present study was to determine the influence of the winemaking process on the antioxidant potential and content of phenolic compounds and L-ascorbic acid in wines from the fruits of Rosa rugosa. The results obtained in this study clearly indicate that the fruits of the Rosa rugosa are a desirable raw material for the production of fruit wine. The parameters of the technological process of producing wines from rose fruits had a diversified influence on the tested quality characteristics. Aged wines contained phenolics levels of 473–958 mg/100 mL GAE. The final concentrations of ascorbic acid ranged from 61 to 155 mg/100 mL for the different variants of the wine. Wines revealed high antioxidant activity in assay with DPPH. On the basis of the obtained results, it can be assumed that all the applied variants of the winemaking process are suitable for rose fruit wine. Each variant ensured at least the stability of the antioxidant capacity.

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