Spray-dried powders from berries extracts obtained upon several processing steps to improve the bioactive components content

GAGNETEN, MAITE; CORFIELD, ROCÍO; MATTSON, MILAGROS GÓMEZ; SOZZI, AGUSTINA; LEIVA, GRACIELA; SALVATORI, DANIELA; SCHEBOR, CAROLINA

POWDER TECHNOLOGY

ELSEVIER SCIENCE SA

Año: 2018

0032-5910

This work aimed at developing powders rich in antioxidant compounds andpigments from three berries grown in argentine Patagonia: blackcurrant,raspberry and elderberry. Ultrasound-assisted extraction (UAE) was applied onthe precipitates generated after juice production in order to improve bioactivecompounds recovery. The best extracts (UAE 10 min for raspberry andblackcurrant, and 5 min for elderberry), obtained after 2-3 extraction cycleswere mixed and spray-dried. The glass transition temperatures (43-50°C), andthe low water content (0.92-1.44 %) and water activity values (