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Antifungal Activity of Paper Modified with Ionic Liquids

机译：离子液体改性纸的抗真菌活性

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摘要

Paper is a material that is easily biodegradable. The most active group of microorganisms responsible for biodegradation processes affecting paper are moulds. In order to prevent this unfavorable impact, various methods are used, including biocides, which added to paper during the production process to protect the final product. In this study, the following ionic liquids were applied: benzalkonium nitrate(V), benzalkonium DL-lactate, and didecylodimethylammonium DL-lactate. They were added (in a concentration of 3% and 5%) to paper samples made of the following pulp grades: pine bleached kraft pulp (pine BKP), birch bleached kraft pulp (birch BKP), recovered fibres and CTMP The antifungal activity of paper was assessed using a qualitative and a quantitative method with strains A. niger, A. versicolor, P. chrysogenum and P. aurantiogriseum. The most resistant strain to the ionic liquid activity was Aspergillus niger The best antimicrobial effect was shown by paper samples made of pine BKP with biocides. The weakest effect was obtained for the CTMP-based paper.
机译：纸是一种易于生物降解的材料。霉菌是负责影响纸的生物降解过程的最活跃的微生物。为了防止这种不利影响，使用了多种方法，包括杀菌剂，在生产过程中将其添加到纸张中以保护最终产品。在这项研究中，使用了以下离子液体：苯扎硝酸铵（V），苯扎酮DL-乳酸盐和双癸基二甲基铵DL-乳酸盐。将它们以3％和5％的浓度添加到以下纸浆级别的纸样品中：松木漂白牛皮纸浆（pine BKP），桦木漂白牛皮纸浆（桦木BKP），回收纤维和CTMP本文使用定性和定量方法对黑曲霉，杂色曲霉，产黄青霉和金黄色葡萄球菌进行了评估。对离子液体活性最具抵抗力的菌株是黑曲霉（Aspergillus niger）。用松木BKP和杀菌剂制成的纸样显示出最佳的抗菌效果。对于基于CTMP的纸张，效果最弱。

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