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Physicochemical and antioxidant composition of fresh peach palm (Bactris gasipaes Kunth) fruits in Costa Rica
Composição físico-química de frutos de pupunha (Bactris gasipaes Kunth) na Costa Rica 

Rojas Garbanzo, Carolina; Pérez Carvajal, Ana Mercedes; Vaillant Barka, Fabrice; Pineda Castro, María Lourdes (2016)
The variability of the physicochemical composition, carotenoid and polyphenol contents and hydrophilic antioxidant capacity of fresh peach palm (Bactris gasipaes) fruit was studied with a view to its exploitation as a ...
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Hypoglycaemic, hypolipidaemic and antioxidant effects of blackberry beverage consumption in streptozotocin-induced diabetic rats 

Azofeifa Cordero, Gabriela; Quesada Mora, Silvia; Navarro Bolaños, Laura; Hidalgo Muñoz, Olman; Portet, Karine; Pérez Carvajal, Ana Mercedes; Vaillant Barka, Fabrice; Poucheret, Patrick; Michel, Alain (2016)
Abnormal glucose metabolism, hyperlipidaemia profiles and high levels of radical oxygen species (ROS) are classic features of diabetes. This study evaluates the effect of the consumption of two different blackberry beverages ...

Effects of mechanical and enzymatic pretreatments on extraction of polyphenols from blackberry fruits 

Soto Retana, Marvin; Acosta Montoya, Óscar Gerardo; Vaillant Barka, Fabrice; Pérez Carvajal, Ana Mercedes (2016-10)
This study evaluated the effects of mechanical and enzymatic pretreatments on the extraction of anthocyanins and ellagitannins from blackberries. Continuous pressing yielded significantly higher turbidity values and content ...

Fruit Processing in Central America and Mexico 

Velázquez Carrillo, Ana Carmela; Pérez Carvajal, Ana Mercedes; Prado Barragán, Lilia Arely (2016)
The fruit production and processing in Central America and Mexico are discussed in this chapter, considering the volume of production, the competitiveness that this crops have in the region and world, and some sociocultural ...
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Use of response surface methodology to compare vacuum and atmospheric deep-fat frying of papaya chips impregnated with blackberry juice
Utilización de la metodología de superficie de respuesta para comparar la fritura por inmersión a presión atmosférica y al vacío de hojuelas de papaya impregnadas con jugo de mora 

Wexler Goering, Lea Margarita; Pérez Carvajal, Ana Mercedes; Cubero Castillo, Elba María; Vaillant Barka, Fabrice (2016)
Vacuum and atmospheric deep-frying were employed to obtain blackberry-based snacks using unripe papaya as matrix. Papaya slices were osmotically impregnated with blackberry juice and fried between 126°C and 154°C at ...

Key odor and physicochemical characteristics of raw and roasted jicaro seeds (Crescentia alata K.H.B.) 

Corrales Hernández, Carla Vanessa; Lebrun, Marc; Vaillant Barka, Fabrice; Madec, Marie Noelle; Lortal, Sylvie; Pérez Carvajal, Ana Mercedes; Fliedel, Genevieve (2017)
Jicaro seeds (Crescentia alata) are widely consumed in Central America, primarily as a popular tasty and nutritious beverage called “horchata”. Seeds are roasted to develop a specific aroma through a process that has never ...

Innovative process combining roasting and tempering to mechanically dehull jicaro seeds (Crescentia alata K.H.B) 

Corrales Hernández, Carla Vanessa; Achir, Nawel; Forestier, Nelly; Lebrun, Marc; Maraval, Isabelle; Dornier, Manuel; Pérez Carvajal, Ana Mercedes; Vaillant Barka, Fabrice; Fliedel, Genevieve (2017)
An innovative process combining roasting and tempering was proposed to promote puffing and mechanical dehulling of jicaro seeds. Roasting was performed at three temperatures (120 °C, 140 °C, and 160 °C) and for six residence ...

Concentration of Polyphenolic Compounds in Blackberry (Rubus Adenotrichos Schltdl.) Juice by Nanofiltration 

Acosta Montoya, Óscar Gerardo; Vaillant Barka, Fabrice; Pérez Carvajal, Ana Mercedes; Dornier, Manuel (2017)
Nanofiltration membranes with molecular weight cut‐off around 200 Da were evaluated to concentrate anthocyanins and ellagitannins in a blackberry juice. Temperature was 30°C and cross‐flow velocity 0.3 m/s. Transmembrane ...
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Método para la obtención de un extracto rico en taninos del ácido elágico a partir de frutos que contienen estos compuestos, y extracto obtenido usando dicho método
Method for obtaining an extract rich in ellagic acid tannins from fruits that contain these compounds, and resulting extract 

Acosta Montoya, Óscar Gerardo; Vaillant Barka, Fabrice; Donnier, Manuel; Pérez Carvajal, Ana Mercedes (2011-05-12)
La presente invención se relaciona con el campo de la biotecnología y con los procesos que emplean tecnologías membranarias, y en particular se refiere a un método para la obtención de un extracto enriquecido en taninos ...
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Procedimiento para la preparación de jugo de noni 

Brat, Pierre; Chan, Yanine; Reynes, Max; Pérez Carvajal, Ana Mercedes; Vaillant Barka, Fabrice (2014)
Se refiere a un procedimiento de preparación de jugo de noni que comprende etapas de: a) triturado de los frutos de noni cuando están en estado de madurez blanco translúcido para producir un puré de frutos de noni; b) ...
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Pérez Carvajal, Ana Mercedes (26)
Vaillant Barka, Fabrice (13)Acosta Montoya, Óscar Gerardo (3)Quesada Mora, Silvia (3)Azofeifa Cordero, Gabriela (2)Corrales Hernández, Carla Vanessa (2)Dornier, Manuel (2)Dornier, Manuel (2)Fliedel, Genevieve (2)Lebrun, Marc (2)... View MoreTypeartículo científico (15)capítulo de libro (4)tesis de licenciatura (3)patente (2)tesis de doctorado (1)tesis de maestría (1)ProcedenceVicerrectoría de Investigación (23)Vicerrectoría de Docencia (10)... View MoreHas File(s)Yes (22)No (4)

  • Repositorios universitarios

  • Repositorio del SIBDI-UCR
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Repositorio Institucional de la Universidad de Costa Rica. Algunos derechos reservados. Este repositorio funciona con DSpace.