Listar Agronomía por procedencia "UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Agroalimentarias::Centro para Investigaciones en Granos y Semillas (CIGRAS)"
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50 aniversario del Centro para Investigaciones en Granos y Semillas (CIGRAS): Historia y aportes en investigación, docencia y acción social.
(2022-09)El Centro para Investigaciones en Granos y Semillas (CIGRAS) es un centro de investigación adscrito a la Vicerrectoría de Investigación de la Universidad de Costa Rica y vinculado a la Facultad de Ciencias ... -
Acrocomia aculeata fruits from three regions in Costa Rica: an assessment of biometric parameters, oil content and oil fatty acid composition to evaluate industrial potential
(2020)Due to increased global demand for vegetable oils, diversification of the supply chain with sustainable sources is necessary. Acrocomia aculeata has recently gained attention as a multi-purpose, sustainable crop for oil ... -
Aflatoxins occurrence through the food chain in Costa Rica: Applying the One Health approach to mycotoxin surveillance
(2017-12)Aflatoxins (AFs) are toxic metabolites produced by Aspergillus spp. and commonly found in crops, grains, feedstuff, and forages. Exposure to AFs has been associated with increased risk of liver cancer and growth retardation ... -
Análisis del proceso de torrefacción para la obtención de un grano de café pretostado
(2021)El proceso está dirigido a cafés de alta calidad (gourmet) como los microlotes de cafés diferenciados, así que un café especial puede presentar una alternativa para beber café recién tostado. El objetivo fue analizar el ... -
Aprenda a tostar café
(2018-07-17)Este objeto de conferencia muestra la manera ideal de tostar el café, además muestra composición del café, calidad del café y otros aspectos importantes del procesamiento del café. -
Biology of the papaya plant
(2014-01-01)The papaya plant (Carica papaya L.) has been described with a large variety of adjectives, which acknowledge the structural and functional complexity and the high phenotypic plasticity of this giant tropical herb (León ... -
Bis-naphthopyrone pigments protect filamentous ascomycetes from a wide range of predators
(2019-08-08)It is thought that fungi protect themselves from predation by the production of compounds that are toxic to soil-dwelling animals. Here, we show that a nontoxic pigment, the bisnaphthopyrone aurofusarin, protects Fusarium ... -
Calidad de los tubérculos y componentes de rendimiento de híbridos F1 de papa (Solanum tuberosum)
(2015)Se evaluaron características de calidad y componentes de rendimiento en una progenie de 837 híbridos F1 de papa, del cruce entre genotipos seleccionados por sus características de resistencia, producción y calidad del ... -
Cambios fisiológicos y bioquímicos asociados con el oscurecimiento de explantes nodales in vitro de Bambusa lako
(2023-06-02)El término “oscurecimiento” engloba de manera general la oxidación por radicales libres de diferentes componentes celulares, así como la oxidación de compuestos fenólicos catalizados por la enzima polifenol oxidasa para ... -
Caracterización anatómica ultraestructural de las variantes “Atlántica”, “Sur” y “Cebolla” del bambú, Guadua angustifolia (Poaceae: Bambusoideae), en Costa Rica
(2006-08-20)We present an ultrastructural characterization of three variants or “forms” of Guadua angustifolia and of the closely related Guadua sp., from Costa Rican populations. Their ultrastructure is similar. Differences are: ... -
Carotenoids and xanthophyll esters of yellow and red nance fruits (Byrsonima crassifolia (L.) Kunth) from Costa Rica
(2018-09)Carotenoid profiles, by means of HPLC-PDA-MSn, and CIE-L*C*h° colour values of yellow and red nance fruits from Costa Rica were elucidated. Among 16 carotenoids detected, (all-E)-lutein was the most abundant accounting for ... -
Carotenoids, carotenoid esters, and anthocyanins of yellow-, orange-, and red-peeled cashew apples (Anacardium occidentale L.)
(2016-06-01)Pigment profiles of yellow-, orange-, and red-peeled cashew (Anacardium occidentale L.) apples were investigated. Among 15 identified carotenoids and carotenoid esters, b-carotene, and b-cryptoxanthin palmitate were the ... -
Challenges for Food and Nutrition Security in the Americas: Costa Rica and its commitment to sustainability
(2017-11)As a small nation with high biodiversity and an extensive system of protected areas, Costa Rica will face particular challenges regarding food security over the next few years. Thus, whatever development model the country ... -
Changes in hormone concentrations during dormancy release of oil palm (Elaeis guineensis) seeds
(2008-10)Oil palm (Elaeis guineensis) seeds are highly dormant immediately after harvest. In practical horticulture this dormancy has been traditionally overcome by a dry-heat treatment and, more recently, through the application ... -
Constant and decreasing periods of pineapple slices dried by infrared
(2016)The aim of the present study is to model the dehydration process of pineapple slices through infrared drying, as well as to determine the critical moisture content and the critical time to the dehydration process. Pineapple ... -
Cuantificación del porcentaje de grano quebrado total en arroz (Oryza sativa L.) mediante análisis digital de imágenes
(2022)Introducción. El análisis digital de imágenes (ADI), se puede utilizar para evaluar parámetros de calidad de los granos de arroz, como el porcentaje de grano entero. Objetivo. Cuantificar el porcentaje de grano quebrado ... -
Deposition Form and Bioaccessibility of Keto-carotenoids from Mamey Sapote (Pouteria sapota), Red Bell Pepper (Capsicum annuum), and Sockeye Salmon (Oncorhynchus nerka) Filet
(2016-02-18)The ultrastructure and carotenoid-bearing structures of mamey sapote (Pouteria sapota) chromoplasts were elucidated using light and transmission electron microscopy and compared to carotenoid deposition forms in red bell ... -
Desarrollo de cápsulas y germinación in vitro de Phragmipedium humboldtii, P. longifolium y P. percei
(2007-06)Slipper orchids belonging to the genus Phragmipedium (subfam. Cypripedioideae) are seriously threatened and therefore listed in Appendix I of CITES. Less research has been conducted in this genus than in others belonging ... -
Direct and indirect in vitro regeneration of Vanilla odorata C. Presl. and V. pompona Schiede, two aromatic species with potential relevance for future vanillin production
(2023-10-11)Direct and indirect shoot regeneration in Vanilla odorata and indirect for V. pompona are described for the first time. Both species produce fragrant, vanillin-containing seed pods and are closely related to the commercially ... -
Diversity in mitotic DNA repair efficiencies between commercial inbred maize lines and native Central American purple landraces
(2022-10)Background: Homologous recombination allows plants to repair double strand breaks in DNA, which if unrepaired may lead to cell death. In this project, we determined the relative DNA repair efciency of the US inbred lines ...