TY - JOUR
T1 - Effects of microfluidisation process on the amounts and distribution of encapsulated and non-encapsulated α-tocopherol microcapsules obtained by spray drying
AU - Quintanilla-Carvajal, María Ximena
AU - Hernández-Sánchez, Humberto
AU - Alamilla-Beltrán, Liliana
AU - Zepeda-Vallejo, Gerardo
AU - Jaramillo-Flores, María Eugenia
AU - de Jesús Perea-Flores, María
AU - Jimenez-Aparicio, Antonio
AU - Gutiérrez-López, Gustavo F.
N1 - Funding Information:
Authors aknowledge IPN-SIP and CONACYT, México for financial support. Author MXQC, thanks CONACYT and IPN-SIP , México for study grant. Authors are grateful to U de La Sabana, Colombia for support.
PY - 2014/9
Y1 - 2014/9
N2 - The effect of microfluidisation on the amount of encapsulated and non-encapsulated α-tocopherol was evaluated in 21 different combinations of maltodextrin, gum arabic and α-tocopherol. A response surface design of two factors (α-tocopherol concentration: 17 to 28% and microfluidisation cycles: 0, 1 and 2) was applied for a purpose. It was determined that the initial amount of α-tocopherol showed a cubic effect on the maximum encapsulation efficiency according to the microfluidisation cycles used. A larger number of cycles in the microfluidiser decreased the size of the nanoemulsion at low initial concentrations (17-20%) of α-tocopherol. The distribution profile of α-tocopherol was also determined by Confocal Scanning Laser Microscopy, and the encapsulation efficiencies of all powders were correlated with their CIELAB parameter a* and resulted in a second-order relation. To the best of our knowledge, this is the first time that the image analysis is reported as useful non-destructive technique to correlate colour and encapsulated materials quantifications.
AB - The effect of microfluidisation on the amount of encapsulated and non-encapsulated α-tocopherol was evaluated in 21 different combinations of maltodextrin, gum arabic and α-tocopherol. A response surface design of two factors (α-tocopherol concentration: 17 to 28% and microfluidisation cycles: 0, 1 and 2) was applied for a purpose. It was determined that the initial amount of α-tocopherol showed a cubic effect on the maximum encapsulation efficiency according to the microfluidisation cycles used. A larger number of cycles in the microfluidiser decreased the size of the nanoemulsion at low initial concentrations (17-20%) of α-tocopherol. The distribution profile of α-tocopherol was also determined by Confocal Scanning Laser Microscopy, and the encapsulation efficiencies of all powders were correlated with their CIELAB parameter a* and resulted in a second-order relation. To the best of our knowledge, this is the first time that the image analysis is reported as useful non-destructive technique to correlate colour and encapsulated materials quantifications.
KW - Confocal microscopy
KW - Microfluidisation
KW - Spray drying
KW - α-Tocopherol encapsulation
UR - http://www.scopus.com/inward/record.url?scp=84904674627&partnerID=8YFLogxK
U2 - 10.1016/j.foodres.2014.05.025
DO - 10.1016/j.foodres.2014.05.025
M3 - Artículo
SN - 0963-9969
VL - 63
SP - 2
EP - 8
JO - Food Research International
JF - Food Research International
ER -