TY - JOUR
T1 - Prosopis alba exudate gum as new carrier agent for obtaining powdered Hibiscus sabdariffa aqueous extracts by spray drying
AU - Vasile, Franco Emanuel
AU - Archaina, Diego Alberto
AU - Jiménez-Guzmán, Jaime
AU - Gutiérrez-López, Gustavo Fidel
AU - Alamilla-Beltrán, Liliana
AU - Mazzobre, María Florencia
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/4/1
Y1 - 2023/4/1
N2 - The objective of this work was to study the functional behavior of Prosopis alba exudate gum (G) as component of powders rich in antioxidant pigments. For this purpose, the morphological, structural and chromatic characteristics as well as physical, biological and stability properties of spray dried aqueous extracts of Hibiscus sabdariffa were evaluated for different ratios of maltodextrin and G, and opportunely compared with gum arabic (GA). Powders containing G showed low moisture (4.9% ds.), low water activity (aw < 0.3), high solubility (>95%) and small (∼25 μm) spherical-shaped particles, with a glass transition temperature (Tg = 52 °C), similar to those containing GA. Phenolic compounds, naturally present in G, improved the storage stability of Hibiscus extract pigments contributing to the preservation of the antioxidant properties. Results encourage to consider Prosopis alba exudate gum as a promising alternative to gum arabic, with the subsequent benefits stemmed from adding value to an underutilized resource.
AB - The objective of this work was to study the functional behavior of Prosopis alba exudate gum (G) as component of powders rich in antioxidant pigments. For this purpose, the morphological, structural and chromatic characteristics as well as physical, biological and stability properties of spray dried aqueous extracts of Hibiscus sabdariffa were evaluated for different ratios of maltodextrin and G, and opportunely compared with gum arabic (GA). Powders containing G showed low moisture (4.9% ds.), low water activity (aw < 0.3), high solubility (>95%) and small (∼25 μm) spherical-shaped particles, with a glass transition temperature (Tg = 52 °C), similar to those containing GA. Phenolic compounds, naturally present in G, improved the storage stability of Hibiscus extract pigments contributing to the preservation of the antioxidant properties. Results encourage to consider Prosopis alba exudate gum as a promising alternative to gum arabic, with the subsequent benefits stemmed from adding value to an underutilized resource.
KW - Anthocyanin
KW - Antioxidant
KW - Hibiscus sabdariffa
KW - Prosopis alba
KW - Spray drying
UR - http://www.scopus.com/inward/record.url?scp=85148025113&partnerID=8YFLogxK
U2 - 10.1016/j.powtec.2023.118316
DO - 10.1016/j.powtec.2023.118316
M3 - Artículo
AN - SCOPUS:85148025113
SN - 0032-5910
VL - 419
JO - Powder Technology
JF - Powder Technology
M1 - 118316
ER -