Articulos, Pre-prints del Laboratorio de Apiterapia y Bioactividad (APIBA) http://www.saber.ula.ve/handle/123456789/2617 2026-06-30T22:46:04Z 2026-06-30T22:46:04Z Vit, Patricia http://www.saber.ula.ve/handle/123456789/16258 2026-06-23T06:14:50Z 2008-08-11T09:00:00Z

I Jornadas de aseguramiento de la calidad de alimentos Vit, Patricia

2008-08-11T09:00:00Z Vit, Patricia http://www.saber.ula.ve/handle/123456789/16236 2026-06-23T06:14:24Z 2008-07-28T09:00:00Z

Guillain-Barré: dos palabras que deben conocerse Vit, Patricia

2008-07-28T09:00:00Z Gutiérrez, María Gabriela Hidalgo, Guimary Nava, Zoyleth Isbelia, Gonzále Vit, Patricia http://www.saber.ula.ve/handle/123456789/16242 2026-06-23T06:23:27Z 2008-07-28T09:00:00Z

¿Qué significa la oportunidad de realizar servicio comunitario para estudiantes de la carrera de farmacia? Gutiérrez, María Gabriela; Hidalgo, Guimary; Nava, Zoyleth; Isbelia, Gonzále; Vit, Patricia Artículo publicado en la revista: Fuerza Farmacéutica. Año 12, Vol. II. Junio 2008.

2008-07-28T09:00:00Z Vit, Patricia Persano Oddo, Livia Marano, Maria Luisa Salas de Mejias, Eddy http://www.saber.ula.ve/handle/123456789/16232 2026-06-18T06:26:47Z 2008-07-25T09:00:00Z

Venezuelan stingless bee honeys characterized by multivariate analysis of physicochemical properties Vit, Patricia; Persano Oddo, Livia; Marano, Maria Luisa; Salas de Mejias, Eddy Venezuelan stingless bee honeys characterized by multivariate analysis of physicochemical properties. (Vit Olivier, Patricia; Persano Oddo, Livia; Marano, Maria Luisa y Salas de Mejias, Eddy) Abstract Stingless bee honey samples collected from 27 nests in Venezuela, were analysed for ten compositional factors (acidity, ash, electrical conductivity, diastase activity, hydroxymethylfurfural, invertase activity, nitrogen, reducing sugars, sucrose and water). The entomological origin of the honeys based on these factors was explored using three methods of multivariate analysis. Clustering was adequate to separate the honey samples into two stingless bee tribes with the exception of honeys from one genus ofTrigonini. Principal component analysis confirmed these findings and grouped the honeys to species level. Although discriminant analysis of the ten quality factors under consideration positioned all the samples in their respective entomological group, lowering the number of variables to reducing sugars, sucrose and diastase activity was still satisfactory for a correct classification. A fourth variable that could be used to assign correct membership was either acidity or nitrogen content. © Inra/DIB/AGIB/Elsevier, Paris

2008-07-25T09:00:00Z Vit, Patricia Bogdanov, Stefan Kilchenmann, V. http://www.saber.ula.ve/handle/123456789/16238 2026-06-23T06:08:16Z 2008-07-25T09:00:00Z

Composition of Venezuelan honeys from stingless bees (Apidae: Meliponinae) and Apis mellifera L. Vit, Patricia; Bogdanov, Stefan; Kilchenmann, V. Composition of Venezuelan honeys from stingless bees (Apidae: Meliponinae) and Apis mellifera L. (Vit Olivier, Patricia; Bogdanov, Stefan y Kilchenmann, V.) Abstract Forty stingless-bee and 21 Apis mellifera honeys from Venezuela were analysed for their essential composition. The stingless bees comprised 3 Melipona and 5 Trigona species. The moisture content of the honeys from the different stingless-bee species was significantly higher than that of the A mellifera honeys. Generally, the stingless-bee honeys had a higher acidity than the A mellifera honeys. The honeys from the Melipona species had lower diastase activity than the Trigona species. There were also differences in the acidity and the ash and nitrogen content of the honeys of the different stingless-bee species, but these differences might also be due to a different floral origin. While the A mellifera honeys fulfilled the quality requirements set by the Codex Alimentarius, the honeys from the stingless bees failed to do so for several parameters, especially the quality factors such as water content, reducing sugars, acidity, and ash content.

2008-07-25T09:00:00Z Suescún, Leisnys Vit, Patricia http://www.saber.ula.ve/handle/123456789/16252 2026-06-23T06:09:00Z 2008-07-25T09:00:00Z

Control de calidad de la miel de abejas producida como propuesta para un proyecto de servicio comunitario obligatorio Suescún, Leisnys; Vit, Patricia Artículo publicado en la revista: Fuerza Farmacéutica. Año 12, Vol. I. Enero 2008.

2008-07-25T09:00:00Z Di Bernardo, María L. Magris, Gladis Vit, Patricia http://www.saber.ula.ve/handle/123456789/16225 2026-06-23T06:07:06Z 2008-07-25T09:00:00Z

Calentadores de gas y riesgo de intoxicación con monóxido de carbono (CO), un asesino silencioso Di Bernardo, María L.; Magris, Gladis; Vit, Patricia Artículo publicado en la revista: Fuerza Farmacéutica. Año 12, Vol. II. Junio 2008.

2008-07-25T09:00:00Z El Kontar, William Santiago Silva, Bertha Ruiz, Javier De Jesús de Durán, Rosa Vit, Patricia http://www.saber.ula.ve/handle/123456789/16234 2026-06-23T06:12:21Z 2008-07-25T09:00:00Z

Explorando la calidad del alimento concentrado para ratas (ACR) utilizado en el bioterio de la Universidad de Los Andes El Kontar, William; Santiago Silva, Bertha; Ruiz, Javier; De Jesús de Durán, Rosa; Vit, Patricia Artículo publicado en la revista: Fuerza Farmacéutica. Año 12, Vol. I. Enero 2008.

2008-07-25T09:00:00Z Gutiérrez, María Gabriela Rodríguez M., Antonio Jesús Vit, Patricia http://www.saber.ula.ve/handle/123456789/16255 2026-06-23T06:17:38Z 2008-07-25T09:00:00Z

Miel de abejas: una fuente de antioxidantes Gutiérrez, María Gabriela; Rodríguez M., Antonio Jesús; Vit, Patricia Artículo publicado en la revista: Fuerza Farmacéutica. Año 12, Vol. I. Enero 2008.

2008-07-25T09:00:00Z Vit, Patricia http://www.saber.ula.ve/handle/123456789/16269 2026-06-23T06:20:21Z 2008-07-25T09:00:00Z

Poesía y ciencia evolucionan juntas: belleza y conocimiento coevolucionan Vit, Patricia Poesía y ciencia evolucionan juntas: belleza y conocimiento coevolucionan. Vit Olivier, Patricia Resumen A veces escribimos porque trabajamos con una idea y porque llegan a nuestras manos artículos o libros que nos ayudan a conectar nuestro pensamiento con lo que otros pensaron antes. Coincidencias o no, con la presencia de otras personas o no, se inicia un tejido donde todos participan de alguna manera, así como la malla del universo del Cacique Seattle (1854). Artículo publicado en la revista: Fuerza Farmacéutica. Año 12, Vol. II. Junio 2008.

2008-07-25T09:00:00Z Bogdanov, Stefan Vit, Patricia Kilchenmann, V. http://www.saber.ula.ve/handle/123456789/16247 2026-06-23T06:25:41Z 2008-07-25T09:00:00Z

Sugar profiles and conductivity of stingless bee honeys from Venezuela Bogdanov, Stefan; Vit, Patricia; Kilchenmann, V. Sugar profiles and conductivity of stingless bee honeys from Venezuela. (Bogdanov, Stefan; Vit Olivier, Patricia y Kilchenmann, V.) Abstract The HPLC sugar profiles and the conductivity of 42 stingless bee honey samples from Venezuela were determined. Three of the honey types were produced by Melipona species (n = 24), while the rest belonged mainly to five Trigona species. The main sugars of the Melipona honeys were fructose and glucose, with an average of 36.7 g/100 g. The Trigona (Frieseomelitta) honeys had a completely different sugar spectrum. There the principal sugar was a disaccharide with the retention time of maltose with an average content of 32.3 g/100 g, while fructose and glucose had smaller concentrations: 24.4 and 18.1 g/100 g respectively. The Melipona honeys contained also small quantities of maltose and only traces of oligosaccharides, while the Trigona honeys had small but measurable amounts of turanose, trehalose and erlose. The conductivity values of the Melipona honeys varied from 0.32 to 0.44 mS/cm and were significantly lower than those of the non-Melipona ones with minimum and maximum values of 1.04 and 1.07 mS/cm.

2008-07-25T09:00:00Z Vit, Patricia Pérez P., Elizabeth M. Rodríguez M., Antonio Jesús http://www.saber.ula.ve/handle/123456789/16263 2026-06-23T06:04:37Z 2008-07-01T09:00:00Z

Antioxidant capacity of Venezuelan honey in wistar rat homogenates Vit, Patricia; Pérez P., Elizabeth M.; Rodríguez M., Antonio Jesús Antioxidant capacity of Venezuelan honey in wistar rat homogenates (Pérez P., Elizabeth ; Rodríguez M., Antonio Jesús y Vit Olivier, Patricia) Abstract The antioxidant effect of several polyphenolic compounds is well known. However, little is known about the antioxidant capacity of Venezuelan honey, which has a high content of polyphenolic compounds. In this work, the antioxidant capacity of a genuine honey produced in Mérida, Venezuela was studied using the ferrous iron oxidation with xylenol orange method, the thiobarbituric acid method, and the determination of antioxidant activity. We found that this honey has the capacity to decrease significantly the concentration of lipid hydroperoxides and malondialdehyde, produced during the lipid peroxidation process, in a comparable way with other widely studied antioxidants such as melatonin and vitamin E. It was found that the antioxidant activity in the 50% honey dilution, the highest concentration we tested, was equivalent to a concentration of uric acid of 0.62 mM. Artículo publicado en Journal of Medicinal Food. Nº9 (4) 2006, pag 510-516

2008-07-01T09:00:00Z Vit, Patricia Jacob, Tim John http://www.saber.ula.ve/handle/123456789/16228 2026-06-23T06:22:06Z 2008-06-17T09:00:00Z

Putative anticataract properties of honey studied by the action of flavonoids on a lens culture model. Vit, Patricia; Jacob, Tim John Putative anticataract properties of honey studied by the action of flavonoids on a lens culture model (Vit Olivier, Patricia y Jacob, Tim John) Abstract Stingless bee (Meliponini) honey is a bioresource used to treat cataracts in traditional medicine. The anticataract activity of twenty flavonoids was explored in an osmotic cataract model, to find a probable link between the putative anti-cataract properties of stingless bee honey eyedrops and their flavonoids. Osmotic cataracts were induced in ovine lenses to produce a model to test anti-cataract drugs in cultured lenses by digital image analysis. Digital images were taken every 4 hr to monitor progressive opacification by measurements of grey level. In 24 hr. the opacification was stable. Osmotic cataracts were induced by incubating ovine lenses in 45% hypotonic HBS for 24 hr to test the anticataract action of twenty synthetic flavonoids at a concentration of 10-5 M. Luteolin tetramethyl ether, luteolin 4'-glucoside, luteolin 3'-7-diglucoside and orientin, significantly inhibited cataracts induced in ovine lenses incubated in 45% hypotonic HBS for 24 hr. Different degrees of opacification were produced by hypotonic stress in ovine lenses. The significant inhibition of cataracts caused by four derivatives of luteolin in vitro may be considered as a preliminary evidence for the putative anticataract properties of stingless bee honeys. Artículo publicado en Journal of Health Science. Vol. 54 (2008) , No. 2 196-202

2008-06-17T09:00:00Z Vit, Patricia Medina, Margarita Enríquez, Eunice http://www.saber.ula.ve/handle/123456789/16266 2026-06-23T06:22:51Z 2008-06-17T09:00:00Z

Quality standards for medicinal uses of Meliponinae honey in Guatemala, Mexico and Venezuela Vit, Patricia; Medina, Margarita; Enríquez, Eunice Quality standards for medicinal uses of Meliponinae honey in Guatemala, Mexico and Venezuela (Vit Olivier, Patricia y Jacob, Tim John) Abstract Beekeeping with stingless bees (meliponiculture) is practiced in Guatemala, Mexico and Venezuela. In this article we review the medicinal uses of stingless bee honeys in these countries.We include honeys from 23 stingless bee species, review their use in the treatment of ocular cataracts and pterygium, fatigue, gastritis, ulcers, lung weakness, coughs, wounds and bruises; their use as laxatives and fertility enhancers, and their nutritional value. A proposal on quality standards for stingless bee honey is considered a contribution for further regulations. Artículo publicado en Bee World. 85(1): 2-5(2004)

2008-06-17T09:00:00Z Vit, Patricia Melendez, Alirio J. Hwee Kee, Tay http://www.saber.ula.ve/handle/123456789/16260 2026-06-23T06:25:30Z 2008-06-17T09:00:00Z

Sphingosine kinase signalling in immune cells Vit, Patricia; Melendez, Alirio J.; Hwee Kee, Tay Sphingosine kinase signalling in immune cells (Vit Olivier, Patricia; Melendez, Alirio J. y Hwee Kee, Tay) Abstract 1. Sphingolipids are potent second messengers modulating biochemical intracellular events and acting as ligands to mediate extracellular systems. Sphingosine kinase (SPHK) is the enzyme that phosphorylates sphingosine into sphingosine- 1-phosphate (S1P), a potent bioactive sphingolipid. 2. The fact that SPHK is highly conserved from protozoa to mammals and is ubiquitous in living tissues reveals important roles of the SPHK pathway for the maintenance of health maintenance. This is also supported by comprehensive reviews on features of its main product, S1P, as having intracellular as well as extracellular roles, inducing a wide range of physiological responses from triggering Ca2+ release from internal stores to promoting growth and cell motility. 3. Immune cell activities have been shown to be modulated by the dynamic balance between ceramide, sphingosine and S1P, conceptualized as a rheostat. Cell proliferation, differentiation, motility and survival have been attributed to the regulatory actions of S1P. The properties of SPHK activity in immune cells are linked to the functions of triggered growth and survival factors, phorbol esters, hormones, cytokines and chemokines, as well as antigen receptors, such as Fc y RI and FceRI. 4. Mechanisms of the SPHK signalling pathway are explored as new targets for drug development to suppress inflammation and other pathological conditions. Key words: immune cells, inflammation, lymphocytes, mast cells, monocytes/ macrophages, neutrophils, signalling, sphingosine kinase, sphingosine-1-phosphate. Artículo publicado en Clinical and Experimental Pharmacology and Physiology.(2005) 32, 153-161.

2008-06-17T09:00:00Z Vit, Patricia Enríquez, Eunice Almeida Souza, Bruno Roubik, David W. Barth Ortrud, Monika Heard, Tim Ashley Carvalho, Carlos A. Villas Bôas, Jerônimo Khan Marchini, Luis Carlos Locatelli, Jean C. Persano Oddo, Livia Almeida Muradian, Ligia B. Bogdanov, Stefan http://www.saber.ula.ve/handle/123456789/16271 2026-06-23T06:08:06Z 2008-06-17T09:00:00Z

Composition of stingless bee honey: setting quality standards. Vit, Patricia; Enríquez, Eunice; Almeida Souza, Bruno; Roubik, David W.; Barth Ortrud, Monika; Heard, Tim Ashley; Carvalho, Carlos A.; Villas Bôas, Jerônimo Khan; Marchini, Luis Carlos; Locatelli, Jean C.; Persano Oddo, Livia; Almeida Muradian, Ligia B.; Bogdanov, Stefan Composition of stingless bee honey: setting quality standards (Almeida Souza, Bruno; Enríquez, Eunice; Roubik, David; Barth, Ortrud; Heard, Tim Ashley; Carvalho, Carlos; Villas Bôas, Jerônimo Khan; Marchini, Luis Carlos; Locatelli, Jean; Persano Oddo, Livia; Almeida Muradian, Ligia B.; Bogdanov, Stefan y Vit Olivier, Patricia) Abstract Compositional data from 152 stingless bee (Meliponini) honey samples were compiled from studies since 1964, and evaluated to propose a quality standard for this product. Since stingless bee honey has a different composition than Apis mellifera honey, some physicochemical parameters are presented according to stingless bee species. The entomological origin of the honey was known for 17 species of Meliponini from Brazil, one from Costa Rica, six from Mexico, 27 from Panama, one from Surinam, two from Trinidad & Tobago, and seven from Venezuela, most from the genus Melipona. The results varied as follows: moisture (19.9-41.9g/100g), pH (3.15-4.66), free acidity (5.9-109.0meq/ Kg), ash (0.01-1.18g/100g), diastase activity (0.9-23.0DN), electrical conductivity (0.49-8.77mS/cm), HMF (0.4-78.4mg/Kg), invertase activity (19.8-90.1IU), nitrogen (14.34-144.00mg/100g), reducing sugars (58.0-75.7g/100g) and sucrose (1.1-4.8g/100g). Moisture content of stingless bee honey is generally higher than the 20% maximum established for A. mellifera honey. Guidelines for further contributions would help make the physicochemical database of meliponine honey more objective, in order to use such data to set quality standards. Pollen analysis should be directed towards the recognition of unifloral honeys produced by stingless bees, in order to obtain standard products from botanical species. A honey quality control campaign directed to both stingless beekeepers and stingless bee honey hunters is needed, as is harmonization of analytical methods. Composição do mel de abelhas sem ferrão: estabelecendo requisitos de qualidade (Almeida Souza, Bruno; Enríquez, Eunice; Roubik, David; Barth, Ortrud; Heard, Tim Ashley; Carvalho, Carlos; Villas Bôas, Jerônimo Khan; Marchini, Luis Carlos; Locatelli, Jean; Persano Oddo, Livia; Almeida Muradian, Ligia B.; Bogdanov, Stefan y Vit Olivier, Patricia) Resumo Dados de composição de 152 amostras de mel de abelhas sem ferrão foram compilados de estudos realizados desde 1964, e sendo avaliados para propor requisitos de qualidade para este produto. Considerando que o mel de abelhas sem ferrão apresenta uma composição distinta ao de Apis mellifera, alguns parâmetros físico-químicos foram apresentados de acordo com a espécie de abelha sem ferrão. A origem entomológica do mel correspondeu a 17 espécies de Meliponini do Brasil, uma da Costa Rica, seis do México, 27 do Panamá, uma do Suriname, duas de Trinidad & Tobago, e sete da Venezuela, a maioria do gênero Melipona. Os resultados variaram como segue: umidade (19,9-41,9 g/100g), pH (3,15-4,66), acidez livre (5,9-109,0 meq/Kg), cinzas (0,01-1,18 g/100g), atividade diastásica (0,9-23,0 DN), condutividade elétrica (0,49-8,77 mS/cm), HMF (0.4-78.4 mg/Kg), atividade da invertase (19,8-90,1 IU), nitrogênio (14,34-144,00 mg/100g), açúcares redutores (58,0-75,7 g/100g) e sacarose (1,1-4,8 g/100g). O conteúdo de umidade dos méis de abelhas sem ferrão é geralmente superior ao máximo de 20% estabelecido para o mel de A. mellifera. As diretrizes oferecidas podem ajudar a expansão consistente da base de dados físico-químicos de mel de abelhas sem ferrão, para estabelecer seus requisitos de qualidade. A análise polínica deve ser direcionada para o reconhecimento dos méis uniflorais produzidos pelas abelhas sem ferrão, a fim de obter produtos padronizados de acordo com sua origem botânica. É necessária uma campanha de controle de qualidade do mel tanto para os coletores de mel de abelhas sem ferrão, como para os meliponicultores, juntamentente com a harmonização dos métodos analíticos. Composición de la miel de abejas sin aguijón: estableciendo requisitos de calidad (Almeida Souza, Bruno; Enríquez, Eunice; Roubik, David; Barth, Ortrud; Heard, Tim Ashley; Carvalho, Carlos; Villas Bôas, Jerônimo Khan; Marchini, Luis Carlos; Locatelli, Jean; Persano Oddo, Livia; Almeida Muradian, Ligia B.; Bogdanov, Stefan y Vit Olivier, Patricia) Resumen Se compilaron datos de composición de 152 mieles de abejas sin aguijón (Meliponini) en estudios realizados desde 1964, y se evaluaron para proponer requisitos de calidad para este producto. Dado que la miel de abejas sin aguijón tienen una composición distinta a la de Apis mellifera, algunos parámetros físico-químicos fueron presentados según la especie abejas sin aguijón. El origen entomológico de la miel se asignó a 17 especies de Meliponini de Brasil, una de Costa Rica, seis de México, 27 de Panamá, una de Surinam, dos de Trinidad & Tobago, y siete de Venezuela, mayormente del género Melipona. Los resultados variaron así: humedad (19,9-41,9g/100g), pH (3,15-4,66), acidez libre (5,9-109,0meq/Kg), cenizas (0,01- 1,18g/100g), actividad de la diastasa (0,9-23,0DN), conductividad eléctrica (0,49-8,77mS/cm), HMF (0,9-78,4mg/Kg), actividad de la invertasa (19,8-90,1IU), nitrógeno (14,34-144,00mg/100g), azúcares reductores (58,0-75,7g/100g) y sacarosa (1,1-4,8g/100g), El contenido de humedad de las mieles de abejas sin aguijón es generalmente superior al máximo de 20% establecido para la miel de A. mellifera. Las directrices ofrecidas pueden ayudar a la expansión consistente de la base de datos físico-químicos de miel de abejas sin aguijón, para establecer sus requisitos de calidad en un futuro. El análisis de polen debería dirigirse hacia el reconocimiento de las mieles uniflorales producidas por las abejas sin aguijón, a fin de obtener productos estandarizados según las especies botánicas. Se necesita una campaña de control de calidad de miel tanto para los recolectores de miel de abejas sin aguijón como para los meliponicultores, junto con la armonización de los métodos analíticos. Artículo publicado en Interciencia. Revista de Ciencia y Tecnología de América. Vol. 31, Nº. 12, p. 867-875, 2006.

2008-06-17T09:00:00Z Vit, Patricia Almeida Muradian, Ligia B. Matsuda, Adriana Hitomi Enríquez, Eunice Barth Ortrud, Monika http://www.saber.ula.ve/handle/123456789/16222 2026-06-23T06:15:23Z 2008-06-16T09:00:00Z

Iniciando una base de datos para proponer estándares de calidad de mieles de abejas sin aguijón. Vit, Patricia; Almeida Muradian, Ligia B.; Matsuda, Adriana Hitomi; Enríquez, Eunice; Barth Ortrud, Monika Iniciando una base de datos para proponer estándares de calidad de mieles de abejas sin aguijón. (Vit Olivier, Patricia; Almeida Muradian, Ligia B.; Hitomi Matsuda, A.; Enríquez, E. y Barth, O. M.) Resumen La ausencia de estándares de calidad para la miel de abejas sin aguijón, ha motivado un proyecto multidisciplinario en la Comisión Internacional de la Miel, para recolectar y conocer la composición de las mieles almacenadas en botijas y no en panal, con un esquema armonizado de análisis. Se presentan los resultados iniciales obtenidos con dos mieles de Meliponini y se invita otros a participar en esta base de datos para proponer estándares de calidad de estas mieles.

2008-06-16T09:00:00Z Vit, Patricia Marchini, Luis Carlos Fernández Díaz, Cecilia Tricio, Aida Esther Villas Bôas, Jerônimo Khan Rodríguez M., Antonio Jesús Almeida, Daniela Almeida Souza, Bruno Heard, Tim Ashley http://www.saber.ula.ve/handle/123456789/16245 2026-06-23T06:00:16Z 2008-06-16T09:00:00Z

A scientific event to promote knowledge regarding honey from stingless bees: 1. Physical-chemical composition. Vit, Patricia; Marchini, Luis Carlos; Fernández Díaz, Cecilia; Tricio, Aida Esther; Villas Bôas, Jerônimo Khan; Rodríguez M., Antonio Jesús; Almeida, Daniela; Almeida Souza, Bruno; Heard, Tim Ashley A scientific event to promote knowledge regarding honey from stingless bees: 1. Physical-chemical composition (Vit Olivier, Patricia; Marchini, Luis Carlos; Fernández Díaz, Cecilia; Tricio, Aida Esther; Villas Bôas, Jerônimo Khan; Rodríguez M., Antonio Jesús; Almeida, Daniela; Almeida Souza, Bruno y Heard, Tim Ashley) Abstract When compared to honey produced by Apis mellifera, honey from stingless bees is little known by the general public. Also, analysts and supervision agencies are faced with difficulties due to the lack of standards for honey produced in "pots" instead of "honeycomb", although it has been widely appreciated before Colombus. A scientific event about honey was promoted in the city of Merida, Venezuela, 2005 in order to obtain honey samples from worldwide stingless bees, whereas six entries were received for the analysis. The identification of the meliponines that produced the honey samples was carried out in order to confirm their entomological origin. This scientific event was suggested to broaden the data bank regarding honey produced by Meliponines, for the International Honey Commission, featuring its standardization. Honey samples produced by six meliponine species from four countries were analyzed as follows: Melipona favosa (Venezuela), Tetragonisca fiebrigi (Argentina), M. compressipes manaosensis and M. seminigra pernigra (Brazil), Trigona carbonaria and Austroplebeia symei (Austrália). The physico-chemical properties of their honey varied as follows: antioxidant activity (0.0-299.7) uM Trolox equivalents, ash (0.01-0.90) g.100 g-1 honey; diastase activity (0.0-34.7) DN, free acidity (14.0-257.8) meq.kg-1 honey, HMF (15.0-33.2) mg.kg honey, moisture content (23.0-29.8) g.100 g-1 honey, nitrogen (27.7-131.5) mg.100 g-1 honey, reducing sugars (48.0-73.7) g.100 g-1 honey, sucrose (0.7-2.8) g.100 g-1 honey, vitamin C (17.7-26.9) mg.100 g-1 honey. Besides promoting the knowledge regarding honey from stingless bees, this work is a contribution for the data bank in order to adjust the quality standards of honey from stingless bees. Evento científico para promover o conhecimento sobre o mel de abelhas sem ferrão: 1. Composição físico-química (Vit Olivier, Patricia; Marchini, Luis Carlos; Fernández Díaz, Cecilia; Tricio, Aida Esther; Villas Bôas, Jerônimo Khan; Rodríguez M., Antonio Jesús; Almeida, Daniela; Almeida Souza, Bruno y Heard, Tim Ashley) Resumo Quando comparado ao mel produzido por Apis mellifera, o mel de abelhas sem ferrão é pouco conhecido pelo público em geral. Também os analistas e órgãos fiscalizadores enfrentam dificuldades devido à falta de padrões para o mel produzido em "potes" ao invés de "favos", embora este tenha sido amplamente apreciado desde antes de Colombo. Uma mostra científica sobre mel foi promovida na cidade de Mérida, Venezuela, 2005, para obter amostras de méis de abelhas sem ferrão do mundo, sendo recebidas seis amostras para análises. A identificação dos meliponíneos que produziram as amostras de méis foi feita para confirmar sua origem entomológica. A realização desta mostra científica foi sugerida para ampliar o banco de dados sobre o mel produzido por Meliponini, para a Comissão Internacional de Mel, enfocando a sua padronização. Amostras de méis produzidas por seis espécies de meliponíneos de quatro países foram analisadas: Melipona favosa (Venezuela), Tetragonisca fiebrigi (Argentina), M. compressipes manaosensis e M. seminigra pernigra (Brasil), Trigona carbonaria e Austroplebeia symei (Australia). As propriedades fisico-quimicas de seus meis variaram como segue: atividade antioxidante (0,0-299,7) uM equivalentes de Trolox, cinzas (0,01-0,90) g.100 g-1 ; atividade diastasica (0,0-34,7) DN, acidez livre (14,0-257,8) meq.kg-1 , HMF (15,0-33,2) mg.kg -1, umidade (23,0-29,8) g.100 g-1, nitrogenio (27,7-131,5) mg.100 g-1, acucares redutores (48,0-73,7) g.100 g-1, sacarose (0,7-2,8) g.100 g-1, vitamina C (17,7-26,9) mg.100 g-1. Alem de promover o conhecimento sobre o mel das abelhas sem ferrao, este trabalho e uma contribuicao para o banco de dados para ajuste de padroes de qualidade do mel de abelhas sem ferrao. Artículo publicado en Magistra, Cruz das Almas-BA. V. 18, n. 4, p. 270-276, out./dez., 2006.

2008-06-16T09:00:00Z Vit, Patricia http://www.saber.ula.ve/handle/123456789/16219 2026-06-23T06:25:20Z 2007-08-14T09:00:00Z

El sexo de la miel Vit, Patricia

2007-08-14T09:00:00Z