Antioxidant and antimicrobial markers by UPLC®–ESI-Q-TOF-MSE of a new multilayer active packaging based on Arctostaphylos uva-ursi

Publication date: 1 May 2019

Source: Talanta, Volume 196

Author(s): Magdalena Wrona, Sabrina Blasco, Raquel Becerril, Cristina Nerin, Ester Sales, Esther Asensio

Abstract

49 different non-volatile compounds were determined in Spanish Arctostaphylos uva-ursi leaves using UPLC^®-ESI-Q-TOF with MS^E technology. Both positive and negative electrospray ionization were applied. MarkerLynx^® was proposed as a powerful tool to distinguish samples from eight wild populations of Spain by determining their non-volatile markers. Development of HRMS methods let to analysis of metabolites in plants. Antioxidant and antimicrobial capacities of different extracts were evaluated. Plant extract with the strongest antioxidant and simultaneous good antimicrobial capacity (Lierta) was chosen and incorporated in a multilayer packaging. Then, antioxidant capacity of the new packaging was evaluated and the efficient free radical scavenging properties were demonstrated.

Graphical abstract

from A via a.sfakia on Inoreader http://bit.ly/2QmiRDG