Alicia Lucía Morales
National University of Colombia
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Featured researches published by Alicia Lucía Morales.
Journal of Agricultural and Food Chemistry | 2010
Coralia Osorio; Baudilio Acevedo; Silke Hillebrand; José G. Carriazo; Peter Winterhalter; Alicia Lucía Morales
The anthocyanins of Bactris guineensis fruit were isolated with the aid of high-speed countercurrent chromatography (HSCCC) and preparative HPLC, and their chemical structures were elucidated by using spectroscopic methods. Among the identified pigments, cyanidin-3-rutinoside and cyanidin-3-glucoside were characterized as major constituents (87.9%). Peonidin-3-rutinoside, peonidin-3-glucoside, cyanidin-3-(6-O-malonyl)glucoside, and cyanidin-3-sambubioside were present in minor amounts. Four anthocyanin ethanolic extracts (AEEs) were obtained by osmotic dehydration and Soxhlet extraction and physicochemically characterized. The composition of anthocyanins was monitored by HPLC-PDA. The extracts with the highest anthocyanin content were subjected to the spray-drying process with maltodextrin. The so-obtained spray-dried powders were analyzed by scanning electron microscopy (SEM) and found to consist of spherical particles <50 microm in size. The anthocyanin composition was similar to that of the fruit. The microencapsulated powders were analyzed by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), revealing that they are quite stable until 100 degrees C. Storage stability tests of microcapsules showed that the release of anthocyanin pigments follows pseudo-first-order kinetics and that the process rate is increased by temperature and humidity. The most suitable conditions for storage were below 37 degrees C and <76% relative humidity, respectively.
Innovative Food Science and Emerging Technologies | 2007
Coralia Osorio; Martha Sofía Franco; Maria Paola Castaño; M.L. González-Miret; Francisco J. Heredia; Alicia Lucía Morales
Food Chemistry | 2009
Nelson Hurtado; Alicia Lucía Morales; M. Lourdes González-Miret; M. Luisa Escudero-Gilete; Francisco J. Heredia
Journal of Food Engineering | 2005
F.A. Ramos; J.L. Delgado; Edgar Bautista; Alicia Lucía Morales; Carmenza Duque
Food Chemistry | 2012
Coralia Osorio; Nelson Hurtado; Corinna Dawid; Thomas Hofmann; Francisco José Heredia-Mira; Alicia Lucía Morales
Journal of Agricultural and Food Chemistry | 1993
Herbert Wintoch; Alicia Lucía Morales; Carmenza Duque; Peter Schreier
European Food Research and Technology | 2002
Alicia Lucía Morales; Carmenza Duque
Journal of Agricultural and Food Chemistry | 2010
Juliana Barrios; Claudia Patricia Cordero; Fabio Aristizábal; Francisco J. Heredia; Alicia Lucía Morales; Coralia Osorio
Hrc-journal of High Resolution Chromatography | 1996
Alicia Lucía Morales; Diana Albarracín; Javier Rodríguez; Carmenza Duque; Luis E. Riaño; Javier Espitia
Journal of Agricultural and Food Chemistry | 1987
Alicia Lucía Morales; Carmenza Duque