Bioactive properties of different extracts obtained from the aerial parts of blueberry and raspberry raw materials
Conference Paper
Overview
Overview
abstract
The waste biomass derived from Berry crops is a new focus of study since producers are becoming
increasingly interested in its valorisation, namely to obtain high added-value products. In this context, the
leaves, and other aerial parts of this raw material, are examples of waste biomass that can be exploited for
several applications, namely in cosmetic formulations due to their unique chemical composition and
associated bioactive properties [1,2]. In this context, this work was focused on upgrading the commercial
potential of blueberry and raspberry plant by-products, which are typically discarded, presenting no
economic value.
Different extracts of Vaccinium myrtillus L. (blueberry) and Rubus idaeus L. (raspberry) aerial parts were
obtained using green methodologies after being air-dried, grounded at 20 mesh, and protected from light.
Different extraction techniques were applied, such as infusion, decoction, maceration, and ultrasoundassisted
extraction (UAE), being the latter two extractions performed with EtOH:H2O (80:20 v/v) as the
extraction medium.
The obtained extracts were studied regarding their antioxidant and antimicrobial properties through the
oxidative haemolysis inhibition assay (OxHLIA) and the microdilution method against pathogenic bacteria,
respectively.
