TY - JOUR
T1 - Microencapsulation of biocompounds from avocado leaves oily extracts
AU - Plazola-Jacinto, C. P.
AU - Pérez-Pérez, V.
AU - Pereyra-Castro, S. C.
AU - Alamilla-Beltrán, L.
AU - Ortiz-Moreno, A.
N1 - Publisher Copyright:
© 2019, Universidad Autonoma Metropolitana Iztapalapa. All rights reserved.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - Microencapsulation of natural biocompounds is a growing field leading to its incorporation into food formulations. The use of vegetable oils as alternative solvents to extract biocompounds is considered a green process. Although avocado leaves are underexploited they are rich in naturally-occuring biocompounds. Therefore, we propose the extraction of biocompunds from avocado leaves using edible vegetable oils and preserve them by means of spray-drying microencapsulation. Spray drying allowed an encapsulation efficiency of the avocado leaves pigments of 50%, extracted with edible oils. Microcapsules Haussner ratio values (1.49 - 1.61) showed the cohesiveness of the powders, this was confirmed by microscopy techniques, obtaining high particles area values (177.4 - 4460.5 μm2). Corn oil extracts showed higher carotenoids (> 10%), chlorophyll a (approximately 5%) and chlorophyll b (>40%) content as compared with safflower oil extracts. However, the hygroscopicity values of the corn oil microcapsules (15.70 - 18.34 g water/ 100 g dry capsules) caused the dissolution of the wall materials exposing the microencapsulated oil, changing the sample color from white to pale yellow.
AB - Microencapsulation of natural biocompounds is a growing field leading to its incorporation into food formulations. The use of vegetable oils as alternative solvents to extract biocompounds is considered a green process. Although avocado leaves are underexploited they are rich in naturally-occuring biocompounds. Therefore, we propose the extraction of biocompunds from avocado leaves using edible vegetable oils and preserve them by means of spray-drying microencapsulation. Spray drying allowed an encapsulation efficiency of the avocado leaves pigments of 50%, extracted with edible oils. Microcapsules Haussner ratio values (1.49 - 1.61) showed the cohesiveness of the powders, this was confirmed by microscopy techniques, obtaining high particles area values (177.4 - 4460.5 μm2). Corn oil extracts showed higher carotenoids (> 10%), chlorophyll a (approximately 5%) and chlorophyll b (>40%) content as compared with safflower oil extracts. However, the hygroscopicity values of the corn oil microcapsules (15.70 - 18.34 g water/ 100 g dry capsules) caused the dissolution of the wall materials exposing the microencapsulated oil, changing the sample color from white to pale yellow.
KW - Antioxidants
KW - Avocado leaves
KW - Microencapsulation
KW - Oily extracts
KW - Spray drying
UR - http://www.scopus.com/inward/record.url?scp=85071162142&partnerID=8YFLogxK
U2 - 10.24275/uam/izt/dcbi/revmexingquim/2019v18n3/Plazola
DO - 10.24275/uam/izt/dcbi/revmexingquim/2019v18n3/Plazola
M3 - Artículo
AN - SCOPUS:85071162142
SN - 1665-2738
VL - 18
SP - 1261
EP - 1276
JO - Revista Mexicana de Ingeniera Quimica
JF - Revista Mexicana de Ingeniera Quimica
IS - 3
ER -