TY - JOUR
T1 - Spray drying of nopal mucilage (Opuntia ficus-indica)
T2 - Effects on powder properties and characterization
AU - León-Martínez, F. M.
AU - Méndez-Lagunas, L. L.
AU - Rodríguez-Ramírez, J.
PY - 2010/7/23
Y1 - 2010/7/23
N2 - Aqueous solutions of mucilage were spray dried without the use of carrier agents and the influence of drying conditions on mucilage powder properties was evaluated. The drying parameters studied were inlet air temperature, feed flow rate, and atomization speed. Statistical analysis carried out on the experimental data showed that the feed flow and atomization speed had significant effects on the dryer yield. Moisture content and yield had an inverse relationship to the inlet air temperature. Furthermore, some physical properties of Opuntia mucilage powder were evaluated. The particle morphology observed was of spheres with collapsed fragments and agglomerate structure. The glass transition temperature and water adsorption behavior indicated that powder is stable for room temperature <45 °C and relative humidity <50%. The GAB model gave good fit (R2 > 0.99) for the experimental data of adsorption isotherms. Net and total sorption heats were determined.
AB - Aqueous solutions of mucilage were spray dried without the use of carrier agents and the influence of drying conditions on mucilage powder properties was evaluated. The drying parameters studied were inlet air temperature, feed flow rate, and atomization speed. Statistical analysis carried out on the experimental data showed that the feed flow and atomization speed had significant effects on the dryer yield. Moisture content and yield had an inverse relationship to the inlet air temperature. Furthermore, some physical properties of Opuntia mucilage powder were evaluated. The particle morphology observed was of spheres with collapsed fragments and agglomerate structure. The glass transition temperature and water adsorption behavior indicated that powder is stable for room temperature <45 °C and relative humidity <50%. The GAB model gave good fit (R2 > 0.99) for the experimental data of adsorption isotherms. Net and total sorption heats were determined.
KW - Adsorption isotherms
KW - Bulk density
KW - Moisture content
KW - Mucilage
KW - Powder properties
KW - Spray drying
KW - Yield
UR - http://www.scopus.com/inward/record.url?scp=77953323452&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2010.03.061
DO - 10.1016/j.carbpol.2010.03.061
M3 - Artículo
SN - 0144-8617
VL - 81
SP - 864
EP - 870
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
IS - 4
ER -