Effect of ripening inhibitor type on formation, stability, and antimicrobial activity of thyme oil nanoemulsion.

Abstract:

:The objective of this research was to study the impact of ripening inhibitor level and type on the formation, stability, and activity of antimicrobial thyme oil nanoemulsions formed by spontaneous emulsification. Oil-in-water antimicrobial nanoemulsions (10 wt%) were formed by titrating a mixture of essential oil, ripening inhibitor, and surfactant (Tween 80) into 5 mM sodium citrate buffer (pH 3.5). Stable nanoemulsions containing small droplets (d < 70 nm) were formed. The antimicrobial activity of the nanoemulsions decreased with increasing ripening inhibitor concentration which was attributed to a reduction in the amount of hydrophobic antimicrobial constituents transferred to the separated hydrophobic domain, mimicking bacterial cell membranes, by using dialysis and chromatography. The antimicrobial activity of the nanoemulsions also depended on the nature of the ripening inhibitor used: palm ≈ corn > canola > coconut which also depended on their ability to transfer hydrophobic antimicrobial constituents to the separated hydrophobic domain.

journal_name

Food Chem

journal_title

Food chemistry

authors

Ryu V,McClements DJ,Corradini MG,McLandsborough L

doi

10.1016/j.foodchem.2017.10.084

subject

Has Abstract

pub_date

2018-04-15 00:00:00

pages

104-111

eissn

0308-8146

issn

1873-7072

pii

S0308-8146(17)31722-3

journal_volume

245

pub_type

杂志文章