Literature DB >> 25189811

The effect of polyhexamethylene guanidine hydrochloride (PHMG) derivatives introduced into polylactide (PLA) on the activity of bacterial enzymes.

Maciej Walczak1, Agnieszka Richert, Aleksandra Burkowska-But.   

Abstract

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.

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Year:  2014        PMID： 25189811      PMCID： PMC4201754          DOI： 10.1007/s10295-014-1505-5

Source DB:  PubMed          Journal:  J Ind Microbiol Biotechnol        ISSN： 1367-5435            Impact factor:   3.346


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