Content of phenolic compounds, ascorbic acid, and photosynthetic pigments in Vaccinium macrocarpon Ait. dependent on seasonal plant development stages and age (the example of introduction in Russia)

2017 ◽  
Vol 218 ◽  
pp. 139-146 ◽  
Author(s):  
E.V. Berezina ◽  
A.A. Brilkina ◽  
A.P. Veselov
Keyword(s):  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Plant Development ◽  
Photosynthetic Pigments ◽  
Vaccinium Macrocarpon ◽  
Development Stages

scholarly journals PERSPECTIVES OF BIOPREPARATION USE IN THE SELECTION OF ONION FOR GREENERY

2018 ◽  
pp. 70-72
Author(s):  
M. S. Gins ◽  
A. F. Agafonov ◽  
V. K. Gins ◽  
A. A. Baikov ◽  
V. S. Romanov ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Secondary Metabolites ◽  
Photosynthetic Pigments ◽  
Podzolic Soil ◽  
Moscow Region ◽  
Leaf Weight ◽  
Foliar Treatment ◽  
Bacterial Preparations ◽  
Selection Of

Food and pharmacological value in onion leaves is mainly represented by ascorbic acid, chlorophylls and secondary metabolites: carotenoids, phenolic compounds. At the same time, their quantity depends on the conditions of cultivation and treatment with biostimulants. The experiment was carried out in a greenhouse on sod-podzolic soil in the Moscow region under conditions of natural insolation at a temperature of 20 ... 25 ° C in March using varieties of VNIISSOK selection – Chernyj princ and Zolotnichok. The effect of Albit and Amir biostimulants on the content of antioxidants and photosynthetic pigments in the leaves of onion was studied. The work shows the promise of using growth-stimulating plant and bacterial preparations for foliar treatment of onion leaves, which allow increasing the yield of leaves and the content of antioxidants. In the leaves of the Chernyj princ variety, an increase in the content of ascorbic acid by 30% was observed when treated with biostimulant Amir, as well as an increase in leaf weight by 8% when treated with Amir and by 14% when treated with biostimulant Albit. Foliar treatment of onion leaves with biostimulants Albit and Amir resulted in an increase in the amount of ethanol-soluble antioxidants.

scholarly journals Promotion of Growth and Physiological Characteristics in Water-Stressed Triticum aestivum in Relation to Foliar-Application of Salicylic Acid

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1316
Author(s):  
Abida Parveen ◽  
Muhammad Arslan Ashraf ◽  
Iqbal Hussain ◽  
Shagufta Perveen ◽  
Rizwan Rasheed ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Salicylic Acid ◽  
Antioxidant Enzymes ◽  
Water Stress ◽  
Photosynthetic Pigments ◽  
Foliar Spray ◽  
Field Capacity ◽  
Available Water ◽  
Drought Tolerant ◽  
Growth Attributes

The present work reports the assessment of the effectiveness of a foliar-spray of salicylic acid (SA) on growth attributes, biochemical characteristics, antioxidant activities and osmolytes accumulation in wheat grown under control (100% field capacity) and water stressed (60% field capacity) conditions. The total available water (TAW), calculated for a rooting depth of 1.65 m was 8.45 inches and readily available water (RAW), considering a depletion factor of 0.55, was 4.65 inches. The water contents corresponding to 100 and 60% field capacity were 5.70 and 1.66 inches, respectively. For this purpose, seeds of two wheat cultivars (Fsd-2008 and S-24) were grown in pots subjected to water stress. Water stress at 60% field capacity markedly reduced the growth attributes, photosynthetic pigments, total soluble proteins (TSP) and total phenolic contents (TPC) compared with control. However, cv. Fsd-2008 was recorded as strongly drought-tolerant and performed better compared to cv. S-24, which was moderately drought tolerant. However, water stress enhanced the contents of malondialdehyde (MDA), hydrogen peroxide (H2O2) and membrane electrolyte leakage (EL) and modulated the activities of antioxidant enzymes (superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), as well as accumulation of ascorbic acid (AsA), proline (Pro) and glycine betaine (GB) contents. Foliar-spray with salicylic acid (SA; 0, 3 mM and 6 mM) effectively mitigated the adverse effects of water stress on both cultivars. SA application at 6 mM enhanced the shoot and root length, as well as their fresh and dry weights, and improved photosynthetic pigments. SA foliage application further enhanced the activities of antioxidant enzymes (SOD, POD, and CAT) and nonenzymatic antioxidants such as ascorbic acid and phenolics contents. However, foliar-spray of SA reduced MDA, H2O2 and membrane permeability in both cultivars under stress conditions. The results of the present study suggest that foliar-spray of salicylic acid was effective in increasing the tolerance of wheat plants under drought stress in terms of growth attributes, antioxidant defense mechanisms, accumulation of osmolytes, and by reducing membrane lipid peroxidation.

scholarly journals Capability of oxygen-scavenger sachets and modified atmosphere packaging to extend fresh barberry shelf life

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Razieh Niazmand ◽  
Samira Yeganehzad
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Shelf Life ◽  
Herbal Remedy ◽  
Physicochemical Characterization ◽  
Modified Atmosphere Packaging ◽  
Storage Period ◽  
Modified Atmosphere ◽  
Oxygen Scavenger

Abstract Background Barberry has long been used as an herbal remedy since ancient times which is found throughout temperate and subtropical regions of the world. Given the short harvesting season and limited shelf life of the barberry, we evaluated the possibility of using modified atmosphere packaging and oxygen-scavenger sachets to increase its storage period. For this purpose, the physicochemical characterization (antioxidant activity, anthocyanin, phenolic compounds, and ascorbic acid content, acidity, firmness, color, and decay incident) of fresh barberry samples packaged within different atmospheres was investigated over 4 weeks of storage at 4 and 25 °C. The barberries were packaged with low-density polyethylene/polyester (LDPE/PET) films under natural atmosphere (C), N2 gas (N), vacuum (V), or in the presence of an oxygen scavenger (OS). Results The results revealed that with increased storage period, the O2 and CO2 levels inside the packages decreased and increased, respectively. The antioxidant activity and amounts of anthocyanin, phenolic compounds, and ascorbic acid all decreased with increasing storage period. Among the studied atmospheres, the OS and, subsequently, V packages were most capable of maintaining the quality of fresh barberries, with the decay incidence being approximately 30 times lower inside these packages relative to the control. Increasing the storage temperature accelerated the intensity of chemical changes and decay across all samples. Conclusion The barberries inside the OS packages stored at 4 °C (and even at 25 °C) still had good sensory properties in terms of chemical properties, texture, and color after 4 weeks. Fortunately, it seems that this packaging technology makes the exportation and delayed consumption of the fresh barberry possible by maintaining its quality.

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 Less grown apple varietes in juice production, and the influence of polyphenols and added ascorbic acid on the juice quality

1971 ◽  
Vol 43 (1) ◽  
pp. 20-26
Author(s):  
Taina Kuusi ◽  
Esko Pajunen
Keyword(s):  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Apple Juice ◽  
Raw Material ◽  
Juice Quality ◽  
Apple Varieties

Three apple varieties, Atlas, Erstaa, and Dolgo, were studied for their suitability for juice production and for the effect of polyphenols and added ascorbic acid on the juice quality. The Atlas and Erstaa varieties were found to be very suitable as raw material for apple juice production. The juices of Atlas were best in quality but they were sensitive to browning while Erstaa juices were not. The juices of Dolgo were considered too tart, but with an exceptionally interesting flavour. Dolgo juices could probably be used in mixtures together with sweeter apple varieties. Ascorbic acid could be used to prevent browning or to stop it to the desired degree and to stabilize the colour of the juice. The second alternative was found to be better because light brownish apple juices are generally preferred. The browning of apple juice was influenced not only by the polyphenolase activity and the polyphenol concentration but also by the type of phenolic compounds. In this respect proanthocyanidins and flavanols were most significant.

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 Comparative Studies of the Phytochemical and Antioxidant activities of the leaves, stems, roots, and seeds extracts of Mitracarpus scaber Zucc (Rubiaceae)

2020 ◽  
Vol 10 (7) ◽  
pp. 668
Author(s):  
Wacothon Karime Coulibaly
Keyword(s):  
Ascorbic Acid ◽  
Phenolic Compounds ◽  
Dry Matter ◽  
Antioxidant Activities ◽  
Phytochemical Screening ◽  
Average Value ◽  
Mitracarpus Scaber ◽  
Layer Chromatography ◽  
Gallic Acid Equivalent ◽  
Ethyl Acetate Extracts

Extracts of the leaves, stem, roots, and seeds of <em>Mitracarpus scaber</em> plants have been thoroughly investigated in an attempt to determine their phytochemical and antioxidant activities.<em> </em>Phytochemical screening carried out by thin-layer chromatography (TLC) revealed the presence of several secondary metabolites in all the selective extracts of the plant. The levels of phenolic compounds showed that the leaves of <em>M. Scaber</em> are the richest in polyphenols with an average value of 488.291 ± 1.205 μg GAE/g (microgram of gallic acid equivalent per gram of the dry matter of the powdered plant). The total flavonoid assay revealed a high content in the leaves (1.624 ± 0.032 %). Also, studies of the antioxidant activities by DPPH<sup>● </sup>(2,2-diphenyl-1'-picrylhydrazyl) method showed a significant effect compared to vitamin C (96.62 %). The percentages of inhibition are respectively 89.82 % and 82.3 % for ethyl acetate extracts of the leaves and seeds. Furthermore, the inhibitory percentages of n-butanol in the leaves and seeds are 90.57 % and 83.67 %, respectively. Calculated IC<sub>50</sub> showed that the n-butanol fraction of the seeds exhibited the highest activity with an IC<sub>50</sub> of 0.293 mg/mL less than ascorbic acid with an IC<sub>50</sub> of 0.387 mg/mL.

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.

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