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Dive into the research topics where Eduardo Morales is active.

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Featured researches published by Eduardo Morales.


Food Chemistry | 2016

High carotenoid bioaccessibility through linseed oil nanoemulsions with enhanced physical and oxidative stability

Daniela Sotomayor-Gerding; B. Dave Oomah; Francisca Acevedo; Eduardo Morales; Mariela Bustamante; Carolina Shene; Mónica Rubilar

Carotenoid (astaxanthin or lycopene) emulsions obtained by high pressure homogenization were investigated for their physical, oxidative and storage stability and biological fate on an in vitro digestion model of bioaccessibility. Emulsion stability evaluated at various processing environments (20-50°C, 2-10 pH, 0-500 mM NaCl, and 0-35 days storage at 25°C) depended on carotenoid and homogenization pressures (5, 10, 100 MPa). Trolox increased the oxidative stability of nanoemulsions (100 MPa) and acted synergistically with BHT in increasing the stability of lycopene nanoemulsion. Intestinal digestibility depended on homogenization pressures with the fastest release and lower amount of free fatty acids observed at 100 MPa. Carotenoid nanoemulsions (100 MPa) were partially (66%) digested and highly bioaccessible (>70%). Therefore, nanoemulsions provide an effective and stable system for efficient astaxanthin or lycopene delivery and bioavailability in foods, beverages, nutraceuticals and/or other agriproducts.


Food Research International | 2015

Functional and physicochemical properties of a protein isolate from AluProt-CGNA: A novel protein-rich lupin variety (Lupinus luteus)

José A. Piornos; César Burgos-Díaz; Takahiro Ogura; Eduardo Morales; Mónica Rubilar; Iván J. Maureira-Butler; Haroldo Salvo-Garrido

This study describes the isolation of proteins from the novel lupin variety AluProt-CGNA (Lupinus luteus) and the influence of pH and NaCl on their functional properties. AluProt-CGNA variety showed to have a great protein content in dehulled seeds (60.60g protein/100g, dry matter), which is higher than soybean and other lupin varieties. A lupin protein isolate (97.54g protein/100g) from AluProt-CGNA, LPIA, was prepared from lupin flour by alkali solubilization and isoelectric precipitation. The solubility profile of the LPIA was affected by pH, where the minimal values were observed at pH values close to its isoelectric point range (pH4-5). The highest values of water absorption capacity (1.71cm3H2O/g protein), oil absorption capacity (1.43g trapped oil/g protein), emulsifying capacity (61.94%), emulsion stability (96.43%), foaming capacity (114.29%), foam stability (65.69%) and least gelation concentration (20g/100cm3) were observed at pH values lower and higher than its isoelectric point. In the presence of 100mM of NaCl, their functional properties were improved. SDS-PAGE showed that LPIA mainly contained high molecular weight proteins (α and β-conglutin). These results are useful for increasing the utilization of this protein isolate as a potential functional ingredient in food industry.


Journal of Electronic Materials | 2018

Factor Optimization in the Manufacturing Process of Dye-Sensitized Solar Cells Based on Naturally Extracted Dye from a Maqui and Blackberry Mixture (Aristotelia Chilensis and Rubus Glaucus)

J. Leyrer; Mónica Rubilar; Eduardo Morales; B. J. Pavez; E. Leal; Renato Hunter

Optical and electrical properties of mini modules of dye-sensitized solar cells (DSSCs) using anthocyanin-enriched extracts from maqui (Aristotelia Chilensis) and blackberry (Rubus Glaucus) have been investigated. Anthocyanins pigments are a group of purple, red, blue and violet water-soluble polyphenolic components widely distributed in berry fruits, and maqui and blackberry are particularly rich sources. The main objective of this study was to analyze the factors involved in the performance of a DSSC. For this purpose, the experimental design considered the variation in the anthocyanin concentration, impregnation time and extract type through the Taguchi methodology with an orthogonal array L4(23) methodology that contributed to reduce cost, time and to obtain reliable statistical results. Then, the effect of these factors was identified by ANOVA, determining the incidence on the efficiency of the DSSC. As a result of the experimental program, the effect on efficiency by anthocyanin concentration was 43.90%, impregnation time 4.55% and extract type 51.22%. The variable extract type contributed the most to the performance, followed by anthocyanin concentration. However, the impregnation time had no effect on the efficiency of the DSSC with a maqui (Aristotelia Chilensis) and blackberry (Rubus glaucus) mixture. With this research, it is possible to identify the influence of different manufacturing factors that affect the efficiency of the DSSC with natural dyes, such as maqui and blackberry mixtures. Through this research, it is established that the incorporation of maqui to the mixture enhances the efficiency of the DSSCs. Maqui as a dye improves the optical absorption properties of the material by increasing the peak of absorption range. This study promotes new research in DSSC with mixtures of natural dyes.


European Journal of Lipid Science and Technology | 2012

Development of a soup powder enriched with microencapsulated linseed oil as a source of omega‐3 fatty acids

Mónica Rubilar; Eduardo Morales; Karla Contreras; Carolina Ceballos; Francisca Acevedo; Mario Villarroel; Carolina Shene


European Journal of Lipid Science and Technology | 2012

Polyphenolic fractions improve the oxidative stability of microencapsulated linseed oil

Mónica Rubilar; Eduardo Morales; Roberto Sáez; Francisca Acevedo; Barbara Palma; Mario Villarroel; Carolina Shene


European Journal of Lipid Science and Technology | 2016

Naturally occurring protein–polysaccharide complexes from linseed (Linum usitatissimum) as bioemulsifiers

César Burgos-Díaz; Mónica Rubilar; Eduardo Morales; Camila Medina; Francisca Acevedo; Ana Marqués; Carolina Shene


European Journal of Lipid Science and Technology | 2013

Production of lipids and docosahexasaenoic acid (DHA) by a native Thraustochytrium strain

Carolina Shene; Allison Leyton; Mónica Rubilar; Manuel Pinelo; Francisca Acevedo; Eduardo Morales


Food Hydrocolloids | 2017

Highly efficient encapsulation of linseed oil into alginate/lupin protein beads: Optimization of the emulsion formulation

José A. Piornos; César Burgos-Díaz; Eduardo Morales; Mónica Rubilar; Francisca Acevedo


World Journal of Microbiology & Biotechnology | 2014

Microencapsulation by spray drying of nitrogen-fixing bacteria associated with lupin nodules

Daniela C. Campos; Francisca Acevedo; Eduardo Morales; Javiera Aravena; Véronique Amiard; Milko A. Jorquera; Nitza G. Inostroza; Mónica Rubilar


Food Hydrocolloids | 2017

Alginate/Shellac beads developed by external gelation as a highly efficient model system for oil encapsulation with intestinal delivery

Eduardo Morales; Mónica Rubilar; César Burgos-Díaz; Francisca Acevedo; Manfred Penning; Carolina Shene

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Mónica Rubilar

University of La Frontera

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Carolina Shene

University of La Frontera

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Ana Marqués

University of Barcelona

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B. J. Pavez

University of La Frontera

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Renato Hunter

University of La Frontera

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Allison Leyton

University of La Frontera

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Barbara Palma

University of La Frontera

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