Water activity restriction by application of essentials oils

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914390" target="_blank" >RIV/00216275:25310/19:39914390 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.cellulosechemtechnol.ro/pdf/CCT3-4(2019)/p.281-289.pdf" target="_blank" >http://www.cellulosechemtechnol.ro/pdf/CCT3-4(2019)/p.281-289.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.35812/CelluloseChemTechnol.2019.53.28" target="_blank" >10.35812/CelluloseChemTechnol.2019.53.28</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Water activity restriction by application of essentials oils

Popis výsledku v původním jazyce

The antimicrobial activity of essential oils (EO) is mainly connected to the restriction of water distribution in reticular porous systems of bioactive matters, but the whole process is more complex. The reversibility of the EO desorption process in the water vapour environment of porous lignocellulosic materials, such as paper, is mainly controlled by the relative humidity (RH) of the atmosphere. At low RH, the reversibility is low in comparison with that at high RH. The reason of this behaviour is due to different diffusivity of penetrating water molecules at low RH and high RH, thus water diffusivity at low RH is higher and that at high RH is lower than EO diffusivity. During EO desorption process at low RH, e.g. of 49%, non-condensed water molecules spread rapidly through a porous material and the EO molecules do not have the time to escape from the non-uniform pores of lignocellulosic material. In contrast, the desorption process at high RH is more reversible.

Název v anglickém jazyce

Water activity restriction by application of essentials oils

Popis výsledku anglicky

The antimicrobial activity of essential oils (EO) is mainly connected to the restriction of water distribution in reticular porous systems of bioactive matters, but the whole process is more complex. The reversibility of the EO desorption process in the water vapour environment of porous lignocellulosic materials, such as paper, is mainly controlled by the relative humidity (RH) of the atmosphere. At low RH, the reversibility is low in comparison with that at high RH. The reason of this behaviour is due to different diffusivity of penetrating water molecules at low RH and high RH, thus water diffusivity at low RH is higher and that at high RH is lower than EO diffusivity. During EO desorption process at low RH, e.g. of 49%, non-condensed water molecules spread rapidly through a porous material and the EO molecules do not have the time to escape from the non-uniform pores of lignocellulosic material. In contrast, the desorption process at high RH is more reversible.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20502 - Paper and wood

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Cellulose Chemistry and Technology

ISSN

0576-9787

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

3-4

Stát vydavatele periodika

RO - Rumunsko

Počet stran výsledku

9

Strana od-do

281-289

Kód UT WoS článku

000472622200008

EID výsledku v databázi Scopus

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