Naslov (eng)

PREPARATION OF BIOPOLYMER BASED PESTICIDE AGAINST PHYTOPHTORA PATHOGENS

Autor

Ćirković, Jovana
Radojković, Aleksandar
Jovanović, Jelena
Perać, Sanja
Branković, Zorica
Milenković, Ivan
Milanović, Slobodan
Dobrosavljević, Jovan
Tadić, Vanja
Žugić, Ana
Branković, Goran

Opis (eng)

In this work, a new formulation that gradually released encapsulated Thuja plicata essential oil (TPEO) as an active component from a biopolymer matrix within a given period was obtained. Firstly, biopolymer matrix consisting of a chitosan-gelatin mixture was prepared. Afterwards, TPEO essential oil was encapsulated into the biopolymer matrix and an oil-in-water emulsion was formed. The main goal of this work was to obtain stable formulation by optimizing synthesis parameters (biopolymers ratio, amount of Tween 80 and homogenization time). FTIR spectra analysis confirmed that the addition of gelatine to the chitosan solution contributed to the forming of strong electrostatic interaction between these polymers, and also revealed hydrogen interactions between active components of TPEO (methyl thujate) and polymer chains. By optimizing biopolymers ratio and amount of Tween 80, nanoemulsion with average droplet size around 150 nm was obtained. The stability of the emulsions was confirmed by zeta potential measurements, with the value of about 30 mV, even after 14 days of ageing at room temperature.

Jezik

engleski

Datum

2025

Licenca

© All rights reserved

Deo kolekcije (1)

o:2594

Radovi nastavnika i saradnika Instituta za proučavanje lekovitog bilja "Dr Josif Pančić"