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Thermal stability of bacteriocin nisin in polylactide-based films

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F18%3A63521095" target="_blank" >RIV/70883521:28110/18:63521095 - isvavai.cz</a>

  • Alternative codes found

    RIV/70883521:28610/18:63521095

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.polymdegradstab.2018.10.019" target="_blank" >http://dx.doi.org/10.1016/j.polymdegradstab.2018.10.019</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.polymdegradstab.2018.10.019" target="_blank" >10.1016/j.polymdegradstab.2018.10.019</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Thermal stability of bacteriocin nisin in polylactide-based films

  • Original language description

    This work investigates the thermal stability of bacteriocin nisin in polylactide (PLA) and polylactide/polyethylene glycol (PLA/PEG) blends at temperatures of 90 °C–180 °C. The samples were prepared by solvent cast technique and characterized according to their mechanical and thermal properties. Research on the thermal stability of nisin in the PLA and PLA/PEG systems was carried out by exposing the given films to various temperatures (90 °C, 120 °C, 160 °C, and 180 °C) for a duration of up to 48 h. Assessment of the antibacterial activity of the samples was carried out by the agar diffusion method against Micrococcus luteus, while structural analysis involved the use of high-performance liquid chromatography with mass detection. Structural changes in the polymer matrix were evaluated by gel permeation chromatography and scanning electron microscopy. The results showed that nisin retained almost 70% of its antimicrobial activity in the PLA matrix, even after treatment at 160 °C for 15 min. The presence of PEG significantly enhanced the degradation of nisin above 120 °C.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10404 - Polymer science

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Polymer Degradation and Stability

  • ISSN

    0141-3910

  • e-ISSN

  • Volume of the periodical

    158

  • Issue of the periodical within the volume

    neuvedeno

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    9

  • Pages from-to

    31-39

  • UT code for WoS article

    000452930600004

  • EID of the result in the Scopus database

    2-s2.0-85055704819