MOLD GROWTH ON SPRUCE AND PINE SAMPLES IN STEADY STATE CONDITIONS: TIME OF GERMINATION AND MAXIMUM COVERAGE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00365438" target="_blank" >RIV/68407700:21110/22:00365438 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/22:00365438

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

MOLD GROWTH ON SPRUCE AND PINE SAMPLES IN STEADY STATE CONDITIONS: TIME OF GERMINATION AND MAXIMUM COVERAGE

Popis výsledku v původním jazyce

Wood is a material that is environmentally friendly and has minimal carbon impact. The durability of wood depends on ambient environmental conditions. This article deals with mold growth on wood samples under constant relative humidity (75 %; 87 %; 95 % RH) and temperature (23 °C). Pine and spruce samples with surfaces oriented along the three principal anatomical directions of wood were prepared. The occurrence of mold was studied by regular microscopic observations. The mold consortium was a mixture of Penicillium sp., Aspergillus sp., and Alternaria sp. The first signs of mold growth on pinewere observed after 7 days for 87 % RH and 12 days for 95 % RH, regardless the surface orientation. Molds on spruce began to grow in 12 to 26 days at 95 % RH in dependence on surface orientation: at first on tangential surface, then on transversal surface, and finally on radial surface. The lower relative humidity of 87 % resulted in a shorter germination time: 7 days for tangential and radial surfaces, and 21 days for transversal surface.

Název v anglickém jazyce

MOLD GROWTH ON SPRUCE AND PINE SAMPLES IN STEADY STATE CONDITIONS: TIME OF GERMINATION AND MAXIMUM COVERAGE

Popis výsledku anglicky

Wood is a material that is environmentally friendly and has minimal carbon impact. The durability of wood depends on ambient environmental conditions. This article deals with mold growth on wood samples under constant relative humidity (75 %; 87 %; 95 % RH) and temperature (23 °C). Pine and spruce samples with surfaces oriented along the three principal anatomical directions of wood were prepared. The occurrence of mold was studied by regular microscopic observations. The mold consortium was a mixture of Penicillium sp., Aspergillus sp., and Alternaria sp. The first signs of mold growth on pinewere observed after 7 days for 87 % RH and 12 days for 95 % RH, regardless the surface orientation. Molds on spruce began to grow in 12 to 26 days at 95 % RH in dependence on surface orientation: at first on tangential surface, then on transversal surface, and finally on radial surface. The lower relative humidity of 87 % resulted in a shorter germination time: 7 days for tangential and radial surfaces, and 21 days for transversal surface.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA20-12941S" target="_blank" >GA20-12941S: Růst plísní na povrchové vrstvě rostlého dřeva za proměnných okrajových podmínek</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Acta Polytechnica CTU Proceedings

ISBN

978-80-01-07096-3

ISSN

—

e-ISSN

2336-5382

Počet stran výsledku

10

Strana od-do

—

Název nakladatele

Univerzitní centrum energeticky efektivních budov

Místo vydání

Praha

Místo konání akce

Praha, Fakulta stavební

Datum konání akce

4. 7. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—