A1 Refereed original research article in a scientific journal
Consumer acceptance and stability of spray dried betanin in model juices
Authors: Mika Kaimainen, Oskar Laaksonen, Eila Järvenpää, Mari Sandell, Rainer Huopalahti
Publisher: ELSEVIER SCI LTD
Publication year: 2015
Journal: Food Chemistry
Journal name in source: FOOD CHEMISTRY
Journal acronym: FOOD CHEM
Volume: 187
First page : 398
Last page: 406
Number of pages: 9
ISSN: 0308-8146
DOI: https://doi.org/10.1016/j.foodchem.2015.04.064
Spray dried beetroot powder was used to colour model juices, and the consumer acceptance of the juices and stability of the colour during storage at 60 degrees C, 20 degrees C, 4 degrees C, and -20 degrees C were studied. The majority of the consumers preferred the model juices coloured with anthocyanins or beetroot extract over model juices coloured with spray dried beetroot powder. The consumers preferred more intensely coloured samples over lighter samples. Spray dried betanin samples were described as 'unnatural' and 'artificial' whereas the colour of beetroot extract was described more 'natural' and 'real juice'. No beetroot-derived off-odours or off-flavours were perceived in the model juices coloured with beetroot powder. Colour stability in model juices was greatly dependent on storage temperature with better stability at lower temperatures. Colour stability in the spray dried powder was very good at 20 degrees C. Betacyanins from beetroot could be a potential colourant for food products that are stored cold. (C) 2015 Elsevier Ltd. All rights reserved.