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Zmeny sacharidového podielu dreva vŕby bielej (Salix alba L.) počas vodnej predhydrolýzy
SYS 0075450 LBL 00000naa^^22^^^^^^^^450 005 20190402085452.9 100 $a 20141027d m y0sloc0103 ba 101 0-
$a slo $d eng 102 $a SK 200 1-
$a Zmeny sacharidového podielu dreva vŕby bielej (Salix alba L.) počas vodnej predhydrolýzy $d The changes of saccharides in Yellow wood (Salix alba L.) during water prehydrolysis $f Viera Kučerová, Eva Výbohová 215 $c Obr., tab. 320 $a Lit. 330 $a In this study the changes of saccharides content of willow (Salix alba L.) wood during water prehydrolysis at temperature 180°C and four different durations (30, 60, 120 and 240 min) were described. Samples of solid residues after water prehydrolysis were treated by Tappi T-222 om-88. Subsequently, incurred hydrolysates were analysed by means of high performance liquid chromatography (HPLC). They were identified and determined D-glucose, D-xylose and L-arabinose. The total content of saccharides in untreated wood was 79 % and the predominant sugar was the D-glucose (60 %). The concentration of D-glucose in solid residues increased with duration of hydrothermal treatment, especially into the time 120 minutes. The concentration of monosaccharides originated from hemicelluloses (D-xylose and L-arabinose) with increasing time of hydrolysis decreased, especially into the time 60 minutes. The changes in the content of hexoses to pentoses are described by logarithmic dependence y = 4.2508ln(x) – 8.6524 (R2 = 0.9871). 330 $a Cieľom článku je zistiť vplyv času vodnej predhydrolýzy pri teplote 180 °C na sacharidový podiel v dreve vŕby bielej. Za týmto účelom bol stanovený obsah sacharidov v tuhých zvyškoch po vodnej predhydrolýze v trvaní 30, 60, 120 a 240 minút. 463 -1
$1 001 sldk_un_cat*0075362 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Roč. 56, č. 2 (2014), s. 47-53 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2014 610 1-
$9 sldk_un_auth*h017323 $a Salix alba L. $X Salix alba L. 610 1-
$9 sldk_un_auth*h012902 $a sacharidy $X saccharides 610 1-
$9 sldk_un_auth*h017335 $a vysokoúčinná kvapalinová chromatografia $X high performance liquid chromatography $X HPLC 610 1-
$9 sldk_un_auth*h011473 $a predhydrolýza $X prehydrolysis 675 $a 543.544.5 $v 2. stred $z slo 700 -1
$3 sldk_un_auth*p0049623 $a Kučerová $b Viera $f 1976- $p TUZDFCHTD $4 070 $T Katedra chémie a chemických technológií 701 -1
$3 sldk_un_auth*p0046221 $a Výbohová $b Eva $f 1974- $p TUZDFCHTD $4 070 $T Katedra chémie a chemických technológií 801 -0
$a SK $b ZV001 $c 20141027 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/05-2-14-kucerova-vybohova_1.pdf
Počet záznamov: 1