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  • research article ; ; ; ; ;
    Jeznach, Maria
    Acta Scientiarum Polonorum : Hortorum Cultus. Lublin: Wydawnictwo akad rolniczej w Lublinie, 2018, Vol. 17, iss. 3, p. 41-48
    The aim of this 3-year study was to determine the influence of harvest time on dry matter, total dietary fibre, fractional composition of dietary fibre (acid detergent fibre (ADF) and neutral detergent fibre (NDF)), water-soluble carbohydrates (WSCs) and inulin content in tubers of different cultivars of Jerusalem artichoke (Helianthus tuberosus L.): 'Rubik', 'Albik' and 'Sauliai'. The tubers were harvested in spring (March and April) and autumn (October and November). Our study shows that the largest amount of WSC to exist in 'Rubik' tubers harvested especially during October. In contrast, the largest amount of total dietary fibres and their fractions (NDF and ADF) accumulated in 'Albik' tubers during the spring harvest month (April). The largest amount of inulin was obtained from 'Sauliai' tubers harvested in October. Based on our results, it is advisable to use the 'Sauliai' tubers from the harvest time during October to obtain the largest amount of inulin.
    WOS© Citations 2  27  93Scopus© Citations 3
  • research article ; ;
    Šlepetienė, Alvyra
    Savicka, Barbara
    Acta Scientiarum Polonorum : Hortorum Cultus. Lublin, 2017, Vol. 16, iss. 3, p. 97-107
    This study aim to evaluate the distribution of bioactive compounds in the tubers of organically grown Jerusalem artichoke (JA) during the growing season in 2012–2014. Field experiments on the three JA cultivars: Albik, Rubik and Sauliai, were carried out at the organic farm in South Lithuania. The tubers were uprooted at the end of each month of the growing period (8 times) in March–June (spring period) and August– November (autumn period) and were analysed for the contents of dry matter, carbohydrates, phenolic compounds, leuco-anthocyanins, catechins. The significantly highest dry matter content in JA tubers was determined in March of 2014 after they had been exposed to sub-zero temperatures in the soil during the winter, while the amount of phenolic compounds – at the beginning of the spring growing period. The significantly highest content of inulin in October of 2014 was accumulated in the tubers of cv. Sauliai (46.08%), carbohydrates – in Albik tubers in September of 2014 (44.23%), when the formation of new tubers began. Significantly higher amounts of catechins were determined in the second half of the growing period. Cultivar and organogenesis stage had a significant impact on the content of leuco-anthocyanins in JA tubers. Substantial differences in the content of leuco-anthocyanins among the tested cultivars were determined at the end of the growing season.
    WOS© Citations 8  56Scopus© Citations 8
  • Publication
    Topinambai (Helianthus tuberosus L.) ir baltasis šilkmedis (Morus alba L.) − draugiškumas tvariai aplinkai
    [Jerusalem artichoke (Helianthus tuberosus L.) and white mulberry (Morus alba L.) – friendliness for sustainable environment]
    research article ; ; ; ;
    Paskevič, Pavel
    Danil, Dubar
    Žmogaus ir gamtos sauga 2016 : 22-osios tarptautinės mokslinės-praktinės konferencijos medžiaga = Human and nature safety 2016 : proceedings of the 22nd international scientific-practice conference / Aleksandro Stulginskio universitetas, Lietuvos Respublikos žemės ūkio ministerija, Vytauto Didžiojo universitetas, Lietuvos žemės ūkio konsultavimo tarnyba, Lietuvos mokslų akademija. Akademija, 2016, p. 167-170
    Organic production of agricultural products attract a lot of consumer interest in recent years. Organic production is not only safe and high quality food products, but also in sustainable farming, which creates a balance between agricultural production and sustainable rural environment conservation. Using the results, it was a comparative analysis and summarizes the recommended procedure for finding varieties of Jerusalem artichoke (Helianthus tuberosus L.) tubers and white mulberry (Morus alba L.) leaves the chemical composition of the valuable new food products development.
  • conference paper ; ; ; ;
    Long-term Agroecosystem Sustainability: Links between Carbon Sequestration in Soils, Food Security and Climate Change : International scientific conference : AgroEco2016 : Programme and abstracts. Akademija, 2016, p. 28-28
    Accumulation of phenolic compounds in the alternative plant raw materials for food depends on the cultivars’ genetic properties. Summarizing the conclusions for the creation of new functional products could be recommended ware potatoes 'Vitelotte' cv. tubers, white mulberry 'Smuglianka' cv. leaves as well Jerusalem artichoke cv. 'Rubik' tubers because contains the highest biologically active materials phenolic compounds.
  • research article ; ; ;
    Химия, био- и нанотехнологии, экология и экономика в пищевой и косметической промышленности : сборник материалов IV Международной научно-практической конференции, 17-18 октября 2016 г. Харьков, 2016, p. 26-29
  • conference paper ; ;
    Young Scientists for Advance of Agriculture : the 5th International Conference of Young Scientists : Abstracts / The Division of Agricultural and Forestry Sciences of the Lithuanian Academy of Sciences. [Vilnius : Lithuanian Academy of Sciences], 2016, p. 41-42
  • research article ;
    Jeznach, Maria
    ; ; ;
    Wawrzyniak, Agata
    Tul-Krzyszczuk, Agnieszka
    Journal of Elementology. Olsztyn : Polskie Towarzystwo Magnezologiczne, 2016, Vol. 21, iss. 4, p. 1315-1325
    The aim of this research was to evaluate the distribution of macronutrients in organically grown Jerusalem artichoke (Helianthus tuberosus L.) tubers throughout the plant growing season. During the years of 2012 – 2014, the following Jerusalem artichoke cultivars were grown for our investigations on an organic farm in the south of Lithuania: Sauliai, Albik and Rubik. The soil had the following agrochemical characteristics: soil pHKCl 6.7–7.5, available phosphorus 101–232 mg kg–1, and available potassium 65–98 mg kg–1. Additional fertilizing was applied to maintain such agrochemical characteristics during all research years. Samples were taken eight times during the growing season of tubers: in March-June (spring period) and August-November (autumn period). Dry matter (DM) content was determined by drying samples to the constant weight at the temperature of 105°C; N - by Kjeldahl method; P - photometrically after wet digestion in sulphuric acid; K, Mg - by atomic absorption spectrmetry (using an Analyst 200). The data were statistically treated using ANOVA data analysis and the management module of the integrated system STATISTICA. For the evaluation of the analytical results, one-factor analysis of variance was carried out. Averages of separate treatments were calculated, the standard deviation and the least significant difference at a 95% probability level were estimated using the Fisher’s LSD test (P<0.05). The distribution of macronutrients in organic Jerusalem artichoke tubers throughout the plant growing period is largely associated with their organogenesis stage. The highest dry matter and nitrogen content were established in tubers of the cultivars Sauliai and Albik in March, while the highest content of potassium and magnesium was determined in tubers of the cultivars Rubik and Sauliai in May. The highest phosphorus content was in the tubers of cv. Rubik in November.
    WOS© Citations 5  63Scopus© Citations 5
  • conference paper ; ;
    Innovative Technologies in Plant Production : Congress of Univariate Departments and International Scientific Conference, Lublin, 29-30 June, 2015 : Book of Abstracts. Lublin, 2015, p. 35
    The aim of this research was to determine the chemical composition of the different of Jerusalem artichoke (Helianthiis tuberosus L.) tubers during their vegetative period.
  • conference paper ; ; ; ; ;
    Agroekosistemų tvarumas ir biologiniai ištekliai žemės ir maisto ūkyje : Agronomjos fakulteto 2012 metų mokslinių tyrimų rezultatai : konferencija : pranešimų santraukos. Akademija, 2013, p. 27-28
  • conference paper ;
    Doktorantų moksliniai tyrimai 2013 / Aleksandro Stulginskio universitetas. Doktorantų korporacija „Kolegos“. Akademija (Kauno r.), 2013, p. 19