Tag Archives: vitamin C

814-826 L. Shevchuk, Y. Tereshchenko, Y. Vintskovska, L. Levchuk, S. Babenko and R. Hrynyk
Yield and content of biologically active substances in blue honeysuckle fruit (Lonicera caerulea L.) grown in the Forest Steppe of Ukraine
Abstract |

Full text PDF (227 KB)

Yield and content of biologically active substances in blue honeysuckle fruit (Lonicera caerulea L.) grown in the Forest Steppe of Ukraine

L. Shevchuk¹²*, Y. Tereshchenko², Y. Vintskovska², L. Levchuk², S. Babenko² and R. Hrynyk²

¹National University of Life and Environmental Sciences of Ukraine, Agrobiological Faculty, 15 Heroes of Defense Str., UA03041 Kyiv, Ukraine
²Institute of Horticulture of the National Academy of Agrarian Sciences of Ukraine, 23 Sadova Str., UA03027 Kyiv, Ukraine
*Correspondence: zberig@ukr.net

Abstract:

The blue honeysuckle (Lonicera caerulea L.) is a relatively new crop in Ukraine, its industrial cultivation is only 100 hectares. The main constraints are the lack of varieties with high yield and nutritional value of berries. Therefore, a study of the yield and quality of introduced varieties is necessary and relevant, both for producers and breeders. With our research, we determined the potential of the early stage of blue honeysuckle berries under the conditions of their cultivation in the Forest Steppe of Ukraine and the weather conditions of the year of the specified region. We assessed how early we can get a crop and set what quality and what it will be. To clearly understand the quality of the grown fruits, their average weight, size and uniformity were studied. From nutritional indicators of fruit quality, the content of dry matter, soluble solids, sugars and titrated acids was studied, from biologically active substances, the content of vitamin C and total phenolic was determined. It was found that in the zone of the Forest Steppe of Ukraine from the studied group of varieties, the highest yield potential, 3.13 kg from a bush for the second year of fruiting and fruit mass 2.4 g, had a variety of Canadian breeding ‘Boreal Beauty’. The fruits of the cultivars ‘Duet’ (4.3) and ‘Boreal Blizzard’ (4.5) were distinguished by the balance of taste according to the sugar-acid index, and the maximum amount of total phenolics for the studied group of varieties was accumulated by the fruits of ‘Boreal Beast’ (1,000 mg 100 g^-1).

Key words:

fruit size, Lonicera caerulea L., mass, sugars, total phenolic content, vitamin C

2082–2088 V. Strizhevskaya, М. Pavlenkova, S. Nemkova, N. Nosachyova, I. Simakova and E. Wolf
Possibility and prospects of preservation of minor components in technology of fruit raw materials conservation
Abstract |

Full text PDF (372 KB)

Possibility and prospects of preservation of minor components in technology of fruit raw materials conservation

V. Strizhevskaya, М. Pavlenkova, S. Nemkova, N. Nosachyova, I. Simakova* and E. Wolf

Federal State Budgetary Educational Institution of Higher Education Saratov State
Agrarian University named after N.I. Vavilov, Department of Veterinary Medicine,
Biotechnology and Food Technology, Sokolovaya street, 335, RU410000 Saratov,
Russian
Correspondence: simakovaiv@yandex.ru

Abstract:

According to modern research, traditional methods of preserving fruits and vegetables do not allow obtaining products identical to natural products for biological value. At the same time, there is a need to provide the population with minor components of food, including concentrated form. The aim of the study was to preserve the minor components in canned fruit raw materials for a long time. The study was carried out comparing the data of bioflavonoids and vitamin C in fresh oranges and dehydrated oranges (immediately after dehydration and storage for 12 months). The analysis was performed by reversed-phase HPLC on Dionex Ultimate 3,000 chromatograph (‘Thermo Scientific’, USA) using Luna 5U C18(2) 100A, 5 μm 4.6 mm × 150 mm column (‘Phenomenex’, USA), system number 125617-12. The identification of components was performed by comparison of retention times of standard flavonoid samples. Dehydration was done by means of resonant IR drying, gradually lowering the temperature from intense (67–75 °C) to soft (32–35 °C) temperature regimes. Analysis of chromatograms of fresh and dehydrated oranges shows that they all have a similar profile, but differ significantly in the content of certain components. The presence of vitamin C 1,926.9 mg per 1 g of dehydrated oranges was noted, which is identical to the content of 10 g of fresh orange. The following flavonoids have been found: prunus and a component related to the polymer form of naringin, the content in 1 g of dehydrated oranges is approximately seven times more than that for 1 g of fresh orange. The loss of vitamin C by 8% during storage of dehydrated orange for 12 months was noted, the amount of flavonoids varies insignificantly by 2–3%. Studies have shown that the technology of dehydration with the help of resonance IR drying allows to keep the minor components in the native state for a long time.

Key words:

dehydration, flavonoids, preservation of minor components, vitamin C

974–981 O. Chernikova, Yu. Mazhayskiy and L. Ampleeva
Selenium in nanosized form as an alternative to microfertilizers
Abstract |

Full text PDF (984 KB)

Selenium in nanosized form as an alternative to microfertilizers

O. Chernikova¹, Yu. Mazhayskiy¹ and L. Ampleeva²

¹Academy of law management of the federal penal service of Russia, RU390036 Ryazan, Sennaya street 1, Russian Federation
²Ryazan State Agrotechnological University named after P.A. Kostychev, RU390044 Ryazan, Kostycheva street 1, Russian Federation
*Correspondence: chernikova_olga@inbox.ru

Abstract:

Nowadays, it is an obvious fact that it is necessary to look for new approaches to agriculture, which would ensure the maximum reduction in the dependence of the volumes and quality of the crop on external factors. The use of nanopreparations in crop production is the most promising. The development of new technologies and techniques using nanomaterials, which would ensure high yields and quality of potato products, is relevant and has great practical importance. The research in recent years has established the important role of selenium in the regulation of plant activity.The purpose of this work was to research the effect of selenium nanoparticles and selenium in the form of micronutrient fertilizers on early-maturing varieties of potatoes for table use: adaptive capacity and nutritional value. Selenium nanopowder in the form of a solution contained the optimum nanoselenium concentration applied–0.13 g per hectare seeding rate. The potato tubers were soaked in distilled water 30 minutes before seeding. The treatment of potato tubers with selenium micronutrient, the dose of which amounted to 400 g per 1 hectare, was also carried out before planting. The soil preparation and agrotechnology cultivation generally accepted in the Ryazan region.The research results showed that presowing treatment of potato tubers with selenium nanopreparation had the most favorable effect on the adaptive capacity of plants (heat resistance, water-holding properties), as well as on yield increase, than treatment of tubers with selenium in the form of microfertilizer. The use of Se nanoparticles leads to an increase in the protein and vitamin C content. The Udacha potato variety showed great responsiveness to the entering of various forms of selenium in comparison with others. The use of selenium in the form of microfertilizer leads to an increase in the accumulation of starch and dry matter. These figures were the highest in potato tubers of the Zhukovskiy Ranniy variety.

Key words:

dry matter, heat resistance, microfertilizer, nanoparticles, potatoes, protein, selenium, starch, vitamin C, water-holding capacity, yield

761-767 A. Urbonavičiūtė, G. Samuolienė, S. Sakalauskienė, A. Brazaitytė,J. Jankauskienė, P. Duchovskis, V. Ruzgas,A. Stonkus, P. Vitta, A. Žukauskas and G. Tamulaitis
Effect of flashing amber light on the nutritional quality of green sprouts
Abstract |

Full text PDF (125 KB)

Effect of flashing amber light on the nutritional quality of green sprouts

A. Urbonavičiūtė¹, G. Samuolienė¹, S. Sakalauskienė¹, A. Brazaitytė¹,J. Jankauskienė¹, P. Duchovskis¹, V. Ruzgas³,A. Stonkus², P. Vitta², A. Žukauskas² and G. Tamulaitis²

¹Lithuanian Institute of Horticulture, 30 Kaunas str., LT–54333, Babtai, Kaunas distr.,Lithuania. Tel. +370–37–555476, fax: +370–37–555176; e-mail: a.urbonaviciute@lsdi.lt
²Institute of Materials Science and Applied Research, Vilnius University,Saulėtekio al. 9–III, LT–10222 Vilnius, Lithuania
³Lithuanian University of Agriculture, Studentų g. 11, LT–53361 Akademija,Kaunas distr., Lithuania

Abstract:

We report on the application of flashing amber (596 nm) light-emitting diodes (LEDs), supplemental to high pressure sodium lamps, for the cultivation of green sprouts, such as wheatgrass, barley grass, and leafy radish. The flashing light was found to significantly affect metabolism, thus conditioning the nutritional quality of the sprouts. In particular, it causes stressful conditions for the plants and within a short growth period can promote the synthesis of antioxidative compounds, such as vitamin C, phenolic compounds and carotenoids. However, the flashing amber light effect is dependent on the plant species.

Key words:

antioxidant activity, barley grass, carotenoids, leafy radish, Light-emitting diodes, saccharides, vitamin C, wheatgrass