Published in Scientific Papers. Series B, Horticulture, Vol. LXVII, Issue 1
Written by Ivanka HAMBARLYISKA, Patricia GEORGIEVA, Radka VRANCHEVA, Jorge Juan-VICEDO, Nadezhda PETKOVA
The aim of the current study was to evaluate the content of total fructans, as well as the individual sugars in the different vegetal parts of 13 ornamental plants. Six Allium representatives (Allium sphaerocephalon, Allium aflatunence, Allium 'Gladiator’, Allium 'Globus’, Allium large-flowered mixed and Nectaroscordum siculum Lindl.), two tulip cultivars, two hyacinth cultivars, Lapiedra martinezii Lag., Tanacetum balsamita and Calendula officinalis were used for the analysis. Ultrasound-assisted water extraction was performed to extract fructans and sugars. Thin layer chromatography and high performance liquid chromatography coupled with refractive index detector (HPLC-RID) method were used for analysis of fructans and sugars analysis. Allium representatives showed the highest content of inulin in their bulb. N. siculum bulb showed the highest fructans and inulin content - 24 g/100 g DW and 17 g/100 g DW, respectively. Fructans in tulip cultivars were in the low values - 3.3-3.8 g/100 g DW. Inulin content in L. martinezii bulbs reached 6 g/100 g DW, while in the roots of C. officinalis - 3.5 g/100 g DW. In the leaves of T. balsamita and L. martinezii only glucose, fructose and sucrose were detected.
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