The effect of polyhexamethylene guanidine hydrochloride (PHMG) derivatives introduced into polylactide (PLA) on the activity of bacterial enzymes
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- 作者：Maciej Walczak (1)
Agnieszka Richert (2)
Aleksandra Burkowska-But (1) - 关键词：Polylactide ; Biocidal substances ; PHMG derivatives ; Activity of enzymes
- 刊名：Journal of Industrial Microbiology and Biotechnology
- 出版年：2014
- 出版时间：November 2014
- 年：2014
- 卷：41
- 期：11
- 页码：1719-1724
- 全文大小：429 KB
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Agnieszka Richert (2)
Aleksandra Burkowska-But (1)
1. Department of Environmental Microbiology and Biotechnology, Faculty of Biology and Environment Protection, Nicholaus Copernicus University, Lwowska 1, 87-100, Toruń, Poland
2. Institute for Engineering of Polymer Materials and Dyes, Sklodowskiej-Curie 55, 87-100, Toruń, Poland - ISSN：1476-5535
文摘
The present study was aimed at investigating bactericidal properties of polylactide (PLA) films containing three different polyhexamethylene guanidine hydrochloride (PHMG) derivatives and effect of the derivatives on extracellular hydrolytic enzymes and intracellular dehydrogenases. All PHMG derivatives had a slightly stronger bactericidal effect on Staphylococcus aureus than on E. coli but only PHMG granular polyethylene wax (at the concentration of at least 0.6?%) has a bactericidal effect. PHMG derivatives introduced into PLA affected the activity of microbial hydrolases to a small extent. This means that the introduction of PHMG derivatives into PLA will not reduce its enzymatic biodegradation significantly. On the other hand, PHMG derivatives introduced into PLA strongly affected dehydrogenases activity in S. aureus than in E. coli.