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Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Relationship between harvesting time and carbohydrate content of Jerusalem artichoke (Helianthus tuberosus L.) tubers

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Cerniauskiene J., Kulaitiene J., Jariene E., Danilcenko H., Zaldariene S., Jeznach M.
Acta Scientiarum Polonorum. Hortorum Cultus
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2018
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tom 17
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nr 3
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.
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Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Changes in amino acids content in tubers of jerusalem artichoke (Helianthus tuberosus L.) cultivars during storage

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Danilcenko H., Jariene E., Gajewski M., Sawicka B., Kulaitiene J., Cerniauskiene J.
Acta Scientiarum Polonorum. Hortorum Cultus
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2013
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tom 12
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nr 2
The objective of the three-year study was to determine the influence of postharvest storage on essential and nonessential amino acids content in tubers of different cultivars of Jerusalem artichoke (Helianthus tuberosus L.) – ‘Rubik’, ‘Albik’ and ‘Sauliai’. The experiment was performed in 2007–2009. The plants were grown in the experimental field of Lithuanian University of Agriculture in Kaunas (from 2011 August – Aleksandras Stulginskis university). The Jerusalem artichoke tubers were stored for 20 weeks at the temperature of 2°C (± 0.5°C) and RH 90–95 % in polypropylene (PP) perforated bags, capacity of 10 kg, in 4 replicates. Amino acids contents were determined immediately after harvest and during storage of the tubers in every 4 weeks by the method of ion-exchange chromatography and then detected photometrically. The data obtained were statistically analyzed with two-factor Anova (STATISTICA software). Standard deviation and the least significant difference at the 95% probability level were calculated with Fisher’s LSD test. Data presented in tables are mean values of the three years of the experiment. The results obtained showed that directly after harvest and during the storage the dominating amino acid in tubers of all cultivars was of essential amino acids – arginine, and of nonessential – asparagine, glutamine and alanine. Tubers of cv. ‘Sauliai’ after 20 week storage accumulated the highest amount of essential amino acids – treonine, valine, isoleucine, leucine, phenylalanine and nonessential – serine, glycine, alanine, tyrosine. Significant correlations between contents of some amino acids in the tubers were found.
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Accumulation of elements in some organically grown alternative horticultural crops in Lithuania

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Danilcenko H., Jariene E., Gajewski M., Cerniauskiene J., Kulaitiene J., Sawicka B., Aleknaviciene P.
Acta Scientiarum Polonorum. Hortorum Cultus
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2011
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tom 10
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nr 2
Oil pumpkin (Cucurbita pepo L. var. styriaca) seeds and Jerusalem artichoke (Helianthus tuberosus L.) tubers are alternative horticultural products containing important biologically active components. The objective of the three-year study was to determine dry matter and micro-, macroelements accumulation in seeds of oil pumpkin Cucurbita pepo L. var. styriaca – ‘Miranda’, ‘Golosemiannaja’, ‘Herakles’, ‘Danaja’, ‘Olga’; and in tubers of Jerusalem artichoke (Helianthus tuberosus L.) –‘ Rubik’, ‘Albik’, ‘Sauliai’ and selection lines Nr. 05-1, Nr. 05-7. Macro- and microelements were determined by mass spectrometer. The highest amount of Ca, K, Fe, Mn, Se and Al was accumulated in oil pumpkin seeds of cv. ‘Miranda’ and amount of Ca, Mg and Se was identified in cv. ‘Rubik’ and K, Na, in ‘Albik’ Jerusalem artichoke tubers.
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