Application of α-Amylase in Combination with Ultrasound to Remove Starch Based Adhesives from Paper

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F11%3A43887126" target="_blank" >RIV/60461373:22310/11:43887126 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Application of &#945;-Amylase in Combination with Ultrasound to Remove Starch Based Adhesives from Paper

Popis výsledku v původním jazyce

&amp;#945;-Amylases are enzymes employed in paper conservation to remove starch-based adhesives. However, the success of their application can be limited by the transport rate of the enzyme molecules through the paper pores to the substrate. This investigation was focused to monitoring the penetration rate of the enzyme into paper and various means of accelerating it. Special attention was paid to using power ultrasound of 20 kHz and a 3 mm diameter sonotrode. The measurement was performed using a vertical static diffusion cell. It was found that the process can be accelerated up to thirty times by using ultrasound. The portability of the results to practical applications was verified on model samples of pasted joints. The work also included testing the effect of ultrasound on the catalytic activity of the enzyme and on selected properties of the paper. No negative effect was observed under the given experimental conditions.

Název v anglickém jazyce

Application of &#945;-Amylase in Combination with Ultrasound to Remove Starch Based Adhesives from Paper

Popis výsledku anglicky

&amp;#945;-Amylases are enzymes employed in paper conservation to remove starch-based adhesives. However, the success of their application can be limited by the transport rate of the enzyme molecules through the paper pores to the substrate. This investigation was focused to monitoring the penetration rate of the enzyme into paper and various means of accelerating it. Special attention was paid to using power ultrasound of 20 kHz and a 3 mm diameter sonotrode. The measurement was performed using a vertical static diffusion cell. It was found that the process can be accelerated up to thirty times by using ultrasound. The portability of the results to practical applications was verified on model samples of pasted joints. The work also included testing the effect of ultrasound on the catalytic activity of the enzyme and on selected properties of the paper. No negative effect was observed under the given experimental conditions.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

AL - Umění, architektura, kulturní dědictví

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Restaurator

ISSN

0034-5806

e-ISSN

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Svazek periodika

32

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

21

Strana od-do

60-80

Kód UT WoS článku

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EID výsledku v databázi Scopus

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