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- Title
Volatile and Antioxidant Compounds of Beetroot Powder Obtained by Dehumidified Air Spray Drying of Cloudy Juice.
- Authors
Barańska, Alicja; Jedlińska, Aleksandra; Wołosiak, Rafał; Witrowa-Rajchert, Dorota; Derewiaka, Dorota
- Abstract
Featured Application: The use of low-temperature spray drying with dehumidified air made it possible to obtain 100% pure powders without the use of carriers. Moreover, powders obtained at a lower temperature (90 °C) without carriers were characterized by the highest share of aromatic volatile compounds, the highest content of betalains and polyphenols and the highest antioxidant activity. The high content of betalains indicates the high coloring ability of the powders. Such high coloring power makes it possible to reduce the dosage of dyes to the product. Due to the current clean label trend, the industry needs natural pure dyes. Additionally, due to the high residue of active substances, low-temperature spray drying using dehumidified air seems to be valuable for the production of dietary supplements and medicines. The aim of this study was to evaluate the quality of cloudy beetroot juice powders with or without a carrier obtained by spray drying using an innovative method of dehumidified air that enabled drying in low temperatures and, consequently, with a reduced carrier content. Phenolic content, betacyanin content, antioxidant activity and the content and types of aromatic compounds of the produced powders were examined. Powders obtained at a lower temperature (90 °C) without carriers were characterized by the highest share of aromatic volatile compounds, the highest content of betalains and polyphenols and the highest antioxidant activity. The addition of carriers (including the variant with added pomace as a natural type of carrier) did not indicate the protection of the active substances present in the juice. The powders obtained with carrier addition compared with those without the carrier addition were characterized by lower antioxidant activity, lower content of betalains and polyphenols and a lower amount of aromatic volatile compounds. No significant differences were found in the content of bioactive and aromatic compounds between powders obtained using different carriers (skim milk powder, Nutriose, maltodextrin and kleptose).
- Subjects
SPRAY drying; AROMATIC compounds; BIOACTIVE compounds; BETALAINS; SKIM milk; MALTODEXTRIN; DRIED milk
- Publication
Applied Sciences (2076-3417), 2024, Vol 14, Issue 16, p7316
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app14167316