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Ekstraktivne snovi v arheološkem lesu jesena : diplomsko delo (univerzitetni študij) = Extractives in archaeological ash wood : graduation thesis (university studies)Golja, BorutRaziskali smo količino ekstraktivnih snovi v arheološkem jesenu (Fraximus sp.)iz 4 eneolitskih koliščarskih naselbin na Ljubljanskem barju in vpliv zaviralnega učinka vročevodnega ekstrakta ... arheološkega lesa na rast 3 lesnih gliv. Les iz kolišč Parte Iščica in Založnica je bil star 4500 let, les iz Spodnjega mostišča in Hočevarice pa 5500 let. Ohrani se je pod zemljo (Založnica, Hočevarica) ali v vodi (Parte Iščica, Spodnje mostišče). Delež ekstraktivnih snovi smo ugotovili z ekstrakcijo z vročo vodo in z natrijevim hidroksidom (Na OH). Povprečni delež vročevodnega ekstrakta v arheološki jesovini je znašal 5,1% na Hočevarici; 2,6% na Založnici; 2,3% na Spodnjem mostišču; 2,3% na kolišču Parte Iščica; in 5,7% pri recentni jesovini. Povprečni delež pri ekstrakciji z natrijevim hidroksidom v arheološki jesovini je znašal 14,4% na Hočevarici; 6,9% na Založnici; 20,4% na Spodnjem mostišču; 13,1 na kolišču Parte Iščica; in 5,1% pri recentni jesovini. Razlik v deležih ekstraktivnih snovi nismo mogli pojasniti niti s starostjo niti z nahajališčem lesa. Za raziskavo vpliva zaviralnega učinka vročevodnega ekstrakta arheološkega lesa na rast 3 lesnih gliv smo uporabili standardno metodo SIST EN 113 iz leta 113 iz leta 1996. Ugotovili smo, da je bila na vzorcih smrekovine, impregnirane z vročevodnim ekstraktom arheološkega lesa, zavirana rast glive Coniophora puteana; na rast gliv Trametes versicolor in Stereum hirsutum pa vročevodni ekstrakt ni vplival.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [B.Golja], 2002Language - slovenianCOBISS.SI-ID - 863881
Author
Golja, Borut
Other authors
Čufar, Katarina |
Tišler, Vesna, 1947- |
Pohleven, Franc
Topics
arheološki les |
jesen (Fraximus sp.) |
ekstraktivne snovi |
kemijske lastnosti |
waterlogged buried archaeological wood |
ash (Fraxinus sp.) |
extractives |
chemical properties
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Library | Call number – location, accession no. ... | Copy status |
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BF, Dept. of Wood Technology, Lj. | Knjižnica BF za lesarstvo dn 730 IN: 020020142 |
available - reading room |
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Čufar, Katarina | 02937 |
Tišler, Vesna, 1947- | 02037 |
Pohleven, Franc | 05248 |
Source: Personal bibliographies
and: SICRIS
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