Browsing Artículos científicos by Author "Rodríguez Rodríguez, Gerardo"
Now showing items 1-4 of 4
-
Bioguided Phytochemical Study of Ipomoea cairica Extracts with Larvicidal Activity against Aedes aegypti
Álvarez Valverde, Víctor; Rodríguez Rodríguez, Gerardo; Argüello-Vargas, Silvia (MDPI, 2022-02-16)Vector-borne diseases, such as those transmitted by Aedes aegypti, are a constant threat to inhabitants of tropical regions of the planet. Synthetic chemicals are commonly used as a strategy to control them; however, ... -
Evaluación de la composición química (Filantósidos y Lignanos) de los extractos crudos del árbol de chilillo (Phyllantus Acuminatusvahl) procedente de diferentes sitios de Costa Rica
Esquivel-Alvarado, Daniel; Rodríguez Rodríguez, Gerardo; Madrigal Carballo, Sergio (Universidad Nacional (Costa Rica), 2013)El propósito del presente trabajo fue en primera instancia el realizar un estudio del contenido de filantósidos y lignanos presentes en muestras de diferentes partes del árbol de chilillo (Phyllantus ... -
Phytonutraceutical evaluation of five varieties of tomato (Solanum lycopersicum) during ripening and processing
Vega Lopez, Brainer; Carvajal Miranda, Yendry; Brenes Peralta, Laura; Gamboa Murillo, Marianela; Venegas Padilla, Jimmy; Rodríguez Rodríguez, Gerardo; Jiménez Bonilla, Pablo; Álvarez valverde, Víctor (Elsevier, 2022-07-15)Tomato (Solanum lycopersicum) is the largest produced vegetable in the world after potato and sweet potato. It is an important source of carotenoids (mainly lycopene), ascorbic acid, and phenolic compounds. In this work, ... -
Revisiting the fundamentals of p-nitrophenol analysis for its application in the quantification of lipases activity. A graphical update
Syedd-León, Randall; Sandoval-Barrantes, Manuel; Trimiño-Vásquez, Humberto; Rodríguez Rodríguez, Gerardo; Villegas Peñaranda, Luis Roberto (Universidad Nacional (Costa Rica), 2020-07-31)p-Nitrophenol (pNP) is a widely used compound for analytical determinations of several esterases (EC. 3.1.1.X), including lipases (E.C. 3.1.1.3). Most enzymatic measurements employ pNP derivatives such as ...