scholarly journals Antioxidant Capacity and Nutritional Value of Potato Tubers (Solanum tuberosum L.) as a Dependence of Growing Conditions and Long-Term Storage

Agriculture ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 21
Author(s):  
Dorota Wichrowska
Keyword(s):  
Antioxidant Capacity ◽  
Chlorogenic Acid ◽  
Solanum Tuberosum L ◽  
Interactive Effect ◽  
Potato Tubers ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Total Polyphenols ◽  
Npk Fertilizers ◽  
Full Dose

The aim of the study was to assess the interactive effect of the use of bio-fertilizer and organic matter brought into the soil, as well as to limit the use of mineral fertilization on the content of bioactive compounds in potato tubers cultivar ‘Satina’. The test results show a positive effect of the applied bio-fertilizer in all tested variants of organic fertilization (straw, fodder pea, manure) on the level of the tested compounds. Comparing the content of crude protein in tubers from plots where half the dose of mineral fertilization was applied, the use of bio-fertilizer increased the content of this component, especially after using straw. After 6 months of storage, organic fertilization had no significant effect on the protein content, while significant differences were found in tubers fertilized with mineral, in favor of the full dose of NPK fertilizers. The storage time increased the content of tyrosine, leucine, lysine, alanine, glutamic acid, and total AA, and also methionine, aspartic acid, and asparagine, while the content of isoleucine and phenyl-alanine decreased. The highest content of total polyphenols was found in tubers where the plots were covered with pea application, a full dose of mineral fertilizer, and the use of bio-fertilizer. Unfortunately, after 6 months of storage, potato tubers from plots fertilized with peas, especially those fertilized with half the dose of mineral fertilization and without the use of biofertilizer, significantly lost the most total polyphenols. Similar relationships were obtained for the level of chlorogenic acid in tubers, which is significantly correlated with the content of polyphenols, but only organic fertilization in the form of peas significantly increased the concentration of chlorogenic acid. On the other hand, the highest post-harvest antioxidant activity was characteristic of tubers from plots fertilized with manure, with a full dose of mineral fertilization and biofertilizer. During the 6-month storage, there was a decrease in the antioxidant capacity, on average 12.4% for the objects. This may indicate the influence of polyphenolic compounds as well as other antioxidants on the assessed trait.

scholarly journals Site conditions and genotype influence polyphenol content in potatoes

2008 ◽  
Vol 34 (No. 4) ◽  
pp. 132-137 ◽  
Author(s):  
K. Hamouz ◽  
J. Lachman ◽  
J. Čepl ◽  
P. Dvořák ◽  
V. Pivec ◽  
...  
Keyword(s):  
Vegetation Period ◽  
Mineral Fertilizers ◽  
Site Conditions ◽  
Potato Tubers ◽  
Polyphenol Content ◽  
Mineral Fertilization ◽  
Total Polyphenols ◽  
Yellow Flesh

In the years 2005 and 2006 the effect of site conditions, yellow and purple fleshed varieties and mineral fertilization on the content of total polyphenols (TP) in potato tubers was investigated. In both years significantly the highest TP content (by 5.7 to 56.3% higher than in other localities) was determined at the Stachy locality; we ascribe it to apparently lower temperatures in the vegetation period at this locality of higher altitude. In the purple flesh Valfi variety TP content higher by 74 to 141% was recorded in average of both years, in comparison to yellow flesh varieties. In the group of eight yellow flesh varieties the highest TP content was recorded in the Ditta variety; it was higher by 38, 29 and 24% in comparison with Saturna, Agria and Asterix varieties. TP content was not significantly affected by fertilization with mineral fertilizers.

Antioxidant Profiling of Native Andean Potato Tubers (Solanum tuberosum L.) Reveals Cultivars with High Levels of β-Carotene, α-Tocopherol, Chlorogenic Acid, and Petanin

2007 ◽  
Vol 55 (26) ◽  
pp. 10839-10849 ◽  
Author(s):  
Christelle M. Andre ◽  
Mouhssin Oufir ◽  
Cédric Guignard ◽  
Lucien Hoffmann ◽  
Jean-François Hausman ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Chlorogenic Acid ◽  
Solanum Tuberosum L ◽  
Potato Tubers ◽  
Andean Potato ◽  
Β Carotene

scholarly journals The effect of mineral fertilization on fungi colonizing potato (Solanum tuberosum L.) tubers after harvest and after storage

2012 ◽  
Vol 62 (2) ◽  
pp. 137-147
Author(s):  
Bożena Cwalina-Ambroziak ◽  
Bożena Bogucka
Keyword(s):  
Foliar Application ◽  
Solanum Tuberosum L ◽  
Potato Cultivar ◽  
Storage Period ◽  
Pathogenic Fungi ◽  
Control Treatment ◽  
Potato Tubers ◽  
Mineral Fertilization ◽  
Late Potato ◽  
Experimental Variant

The paper presents the results of a three-year exact experiment conducted in Bałcyny, in which a late potato cultivar, Jasia, was grown. The objective of the study was to determine the effect of different levels of mineral fertilization: A (N 80 kg × ha<sup>-1</sup> P 80 kg × ha<sup>-1</sup> K120 kg × ha<sup>-1</sup>) and B (N 120 kg × ha<sup>-1</sup> P 144 kg × ha<sup>-1</sup> K156 kg × ha<sup>-1</sup>), and foliar fertilization (Basfoliar 12-4-6, ADOB Mn and Solubor DF) on the quantitative and qualitative composition of fungal populations colonizing potato tubers. Fungi were isolated immediately after harvest and after a five-month storage period. After seven days of incubation, fungal colonies were transferred onto agar slants for microscopic identification. Over the entire experimental period, more pathogenic fungi were obtained from potato tubers analyzed after storage (62.9% of the total fungal population after storage) than from those analyzed immediately after harvest (39.1%), and the greatest number of fungi was reported in 2004. <i>Rhizoctonia solani</i> was isolated most frequently, followed by <i>Colletotrichum coccodes</i> and <i>Alternaria alternata</i>. Pathogens of the genus <i>Fusarium</i> and the species <i>Helminthosporium solani</i> were not numerous. In the treatment A with soil mineral fertilization with lower NPK rates, larger numbers of pathogenic fungi were noted in 2004 after harvest and after five-month storage, and in 2005 after harvest. At the remaining dates of analysis, pathogens were more frequently isolated from potato tubers in experimental variant B with higher NPK rates. Immediately after harvest, the highest number of pathogenic fungi was isolated in the treatment with foliar application of ADOB Mn and Basfoliar 12-4-6. After five-month storage, pathogens most often colonized potato tubers in experimental variant B with foliar application of Solubor DF, Solubor DF and ADOB Mn, and in experimental variant A with a combination of fertilizers. In the other fertilization variants, including in the control treatment, the population size of pathogenic agents remained at a similar level.

scholarly journals Influence of Organic Fertilization on Nutritional Characteristics and Antioxidant Capacity of Melon Fruits

2020 ◽  
Vol 77 (2) ◽  
pp. 17
Author(s):  
Tatyana BILEVA ◽  
Nadezhda PETKOVA ◽  
Todor BABRIKOV
Keyword(s):  
Antioxidant Capacity ◽  
Titratable Acidity ◽  
Organic Fertilizers ◽  
Total Flavonoids ◽  
Total Phenols ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Healthy Nutrition ◽  
Nutritional Characteristics ◽  
Total Flavonoids Content

This study aimed to investigate the influence of organic fertilization on nutritional characteristics and antioxidant capacity of three melon varieties fruits (Cucumis melo L.) - Hybrid 15 F1, Desserten 5, and Galia. The trials were carried out under greenhouse conditions in the infested with root-knot nematodes soil. Galia was grown with mineral fertilization. The other two varieties were treated with organic fertilizers - Liquid “Humus Active” during vegetation and Neem cake twice - before planting and during flowering. The dry matter, ash, titratable acidity, pH, carbohydrate, protein, lipid content, pigments, total phenols, and total flavonoids, and the antioxidant capacity were evaluated. Desserten 5 demonstrated the highest sugars content – sucrose (5.32 g/100 g), glucose (1.35 g/100 g) and fructose (2.51 g/100 g), as well as the highest carotenoids (90 μg/100 g fw), total phenols (540 mg GAE/100 g fw), and total flavonoids content (73 mg QE/100 g fw) and antioxidant capacity(25 mM TE/100 g). The results revealed that the nutritional value of melon fruits could be improved by using organic fertilization for the production of foods for healthy nutrition.

scholarly journals Pathogens of potato (Solanum tuberosum L.) tuber (Phytophtora infestans) occurring in treatments with foliar fertilization

2012 ◽  
Vol 65 (3) ◽  
pp. 75-84
Author(s):  
Bożena Cwalina-Ambroziak ◽  
Bożena Bogucka
Keyword(s):  
Solanum Tuberosum L ◽  
Pathogenic Fungi ◽  
Soft Rot ◽  
Potato Cultivars ◽  
Potato Tubers ◽  
Mineral Fertilization ◽  
Dry Rot ◽  
Foliar Fertilization ◽  
Ne Poland ◽  
Tuber Diseases

The paper presents the results of a three-year exact plot experiment (2008-2010) established in Bałcyny (NE Poland). Three potato cultivars were grown: medium-early &lsquo;Adam&rsquo;, medium-late &lsquo;Pasja Pomorska&rsquo;, and late &lsquo;Ślęza&rsquo;. The experimental factors were foliar fertilizers applied alone or in combination (Basfoliar 12-4-6, ADOB Mn, Solubor DF) and two levels of soil mineral fertilization (N<sub>1</sub>P<sub>1</sub>K<sub>1</sub>-80 kg N × ha<sup>-1</sup>, 80 kg P × ha<sup>-1</sup>, 120 K × ha<sup>-1</sup>; N<sub>2</sub>P<sub>2</sub>K<sub>2</sub>-120 kg N × ha<sup>-1</sup>, 144 kg P × ha<sup>-1</sup>, 156 K × ha<sup>-1</sup>). The experimental materials comprised potato tubers. The symptoms of soft rot (<em>Pectobacterium carotovorum </em>subsp. <em>carotovorum</em>), late blight (<em>Phytophthora infestans</em>) and dry rot (<em>Fusarium </em>spp.) were evaluated in 5 kg potato samples, and were expressed as the percentage mass of infected tubers. The rates of common scab (<em>Streptomyces scabies</em>) and black scurf (<em>Rhizoctonia solani</em>) infection were estimated on 100 tubers collected randomly after harvest, according to a nine-point scale, and were presented as a percentage infection index. In the laboratory, fungi were isolated on PDA medium from potato tubers immediately after harvest and after five-month storage. The incidence of tuber diseases depended on potato cultivars affected. The severity of tuber diseases varied between treatments with two levels of NPK fertilization and foliar fertilization. The lowest number of <em>Fusarium-</em>infected tubers was obtained from treatments where three foliar fertilizers were applied in combination, which was confirmed by the lowest abundance of fungal isolates. More fungi were isolated from potato tubers after harvest than after storage, but pathogens were more frequently isolated from stored tubers. After harvest, the lowest number of pathogenic fungi was isolated from the tubers of cv. &lsquo;Adam&rsquo; in the non-fertilized treatment, and after storage – from the tubers of the late cultivars in the treatment with three foliar fertilizers applied in combination.

scholarly journals Dynamic of Phenolic Compounds, Antioxidant Activity, and Yield of Rhubarb under Chemical, Organic and Biological Fertilization

Plants ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 355 ◽  
Author(s):  
Alexandru Cojocaru ◽  
Laurian Vlase ◽  
Neculai Munteanu ◽  
Teodor Stan ◽  
Gabriel Ciprian Teliban ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Organic Fertilizer ◽  
Antioxidant Compounds ◽  
Nutritional Management ◽  
Organic Fertilization ◽  
Total Polyphenols ◽  
Chemical Fertilization ◽  
Edible Parts

In recent years, rhubarb is being increasingly cultivated, as it provides early yields when the vegetables supply to market is deficient and shows high levels of both polyphenols content and antioxidant capacity in edible parts. In 2017, we investigated crops of the rhubarb cultivar Victoria to the fifth year of production. Comparisons were performed between three root phase fertilizations—chemical (NPK 16-16-16®), organic (Orgevit®), and biological (Micoseeds MB®)—plus an unfertilized control. The determinations of polyphenols, the antioxidant capacity, and the yield indicators from the stalks (petioles) of rhubarb were made at each out of the 10 harvests carried out. The highest yield (59.16 t·ha−1) was recorded under the chemical fertilization. The total polyphenols content and antioxidant capacity varied widely from 533.86 mg GAE·g−1 d.w. and 136.86 mmol Trolox·g−1 d.w., respectively in the unfertilized control at the last harvest, up to 3966.56 mg GAE·g−1 d.w. and 1953.97 mmol Trolox·g−1 d.w. respectively under the organic fertilization at the four harvest. From the results of our investigation, it can be inferred that the chemical fertilization was the most effective in terms of yield, whereas the sustainable nutritional management based on organic fertilizer supply led to higher antioxidant compounds and activity.

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