Počet záznamov: 1
Chemical characterisation of european beech (Fagus sylvatica L.) mature wood and false heartwood
Názov Chemical characterisation of european beech (Fagus sylvatica L.) mature wood and false heartwood Aut.údaje Eva Výbohová, Anna Oberle Autor Výbohová Eva TUZDFCHTD - Katedra chémie a chemických technológií Spoluautori Oberle Anna Zdroj.dok. Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. Vol. 65, no. 2 (2023), s. 13-23. - Zvolen : Technická univerzita vo Zvolene, 2023 Poznámky Lit. Jazyk dok. angličtina Krajina Slovenská republika Systematika 630*176.1 Heslá nepravé jadrové drevo - false heartwood * buk lesný - European beech - Fagus sylvatica L. * chemické zloženie - chemical composition * polyfenoly - polyphenols * analýza FTIR - FTIR analysis * FTIR spektroskopia - FTIR spectroscopy Anotácia False heartwood in European beech (Fagus sylvatica L.) is a significant defect reducing the usability of the wood for aesthetic reasons. The aim of this work was to compare the chemical composition of mature wood and false heartwood of beech regarding their different coloring. The content of the main wood components, extractives, polyphenolic compounds, and soluble carbohydrates was determined. In addition, FTIR (Fourier transform infrared spectroscopy) analysis of mature wood, border zones and false heartwood was also performed. Chemical analyses showed a slightly higher content of holocellulose in false heartwood compared to mature wood. The differences in cellulose and lignin content are minimal. The content of both lipophilic and hydrophilic extractives is higher in mature wood. Hydrophilic extract from mature wood contains more phenolics and soluble carbohydrates compared to false heart. According to ATR-FTIR (Attenuated total reflectance Fourier transform infrared spectroscopy) analysis it can be assumed that there is an increase in the content of polyphenolic extractives in the border zone, especially in the darkest colored zone next to the false heart. URL https://df.tuzvo.sk/sites/default/files/02-02-23.pdf Kategória publikačnej činnosti ADN Báza dát xcla - ČLÁNKY Druh dok. RBX - rozpis článkov z periodík Odkazy PERIODIKÁ-Súborný záznam periodika Čísla 2023: 2 
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Počet záznamov: 1