diplomsko delo (univerzitetni študij)
Jerneja Modic (Author), Franc Pohleven (Reviewer), Miha Humar (Mentor)

Abstract

Za zaščito lesa se zelo pogosto uporabljajo bakrove spojine. Slabost zaščitnih pripravkov na osnovi bakra je njihovo izpiranje ter pojav na baker tolerantnih sevov gliv. Za fiksacijo se bakrovim pripravkom v zadnjem času namesto kromovih spojin dodaja etanolamin ter oktanojska kislina. Bor in kvartarna amonijeva spojina pa imata vlogo sekundarnega fungicida in izboljšata odpornost proti tolerantnim glivam. V nalogi smo ugotavljali fungicidno delovanje posameznih sestavin novejših pripravkov na osnovi bakra, etanolamina, kvartarne amonijeve spojine, oktanojske kisline in bora. Zanimalo nas je ali med posameznimi sestavinami obstajajo sinergistične ali antagonistične fungicidne lastnosti. Interakcije med komponentami smo ugotavljali na smrekovih vzorcih po nestandardni mini blok metodi in z metodo presejalnega testa na hranilnem gojšču. Pri obeh testih smo uporabili 3 vrste gliv, in sicer: belo hišno gobo (Antrodia vaillantii), navadno tramovko (Gloeophyllum trabeum) in pisano ploskocevko (Trametes versicolor). Prišli smo do zaključkov, da med posameznimi sestavinami zaščitnega pripravka CuEOQ ni sinergističnih interakcij. Najnižja inhibitorna koncentracija najbolj učinkovite komponente zaščitnega pripravka določa tudi učinkovitost celotnega pripravka.

Keywords

zaščita lesa;lesne glive;baker;etanolamin;

Data

Language: Slovenian
Year of publishing:
Source: Ljubljana
Typology: 2.11 - Undergraduate Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [J. Modic]
UDC: 630*841.41
COBISS: 1542793 Link will open in a new window
Views: 1010
Downloads: 355
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: Fungicidal properties of individual active ingredients in copper-ethanolamine based preservative solutions
Secondary abstract: Copper compounds are one of the most frequently used wood preservatives. Insufficient fixation and appearance of copper tolerant fungi are the most important weakness of these preservatives. Combination of ethanolamine and octanoic acid replaced chromium as copper fixative in preservative solutions. Boron and quaternary ammonium compounds serve as secondary fungicides against copper tolerant fungi. The purpose of our research was to elucidate fungicidal properties of all individual active ingredients: copper, ethanolamine, octanoic acid, quaternary ammonium compound and boron. The main goal was to estimate, whether there are any synergistic or antagonistic interactions among different ingredients of preservative solution CuEOQ. Interactions were studied using non-standard mini block procedure on spruce wood specimens, and by screening test method on nutrient medium. 3 wood decay fungi: Antridia vaillantii, Gloeophyllum trabeum and Trametes versicolor were used for these experiments. Our results showed no synergistic interactions among individual ingredients. The lowest inhibitory concentration defined the effectiveness of the preservative solution.
Secondary keywords: wood preservation;wood fungi;copper;ethanolamine;
Type (COBISS): Undergraduate thesis
Thesis comment: Diplomsko delo, Univ. v Ljubljani, Biotehniška fakulteta, Odd. za lesarstvo
Pages: IX, 50 f.
Keywords (UDC): applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;agriculture and related sciences and techniques;forestry;farming;wildlife exploitation;kmetijstvo ter sorodne vede in tehnologije;forestry;gozdarstvo;forest products and their utilization;gozdni proizvodi in njihova uporaba;
ID: 21135