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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
03/09/2019 |
Actualizado : |
28/04/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
RABAZA, A.; BANCHERO, G.; CAJARVILLE,C.; ZUNINO, P.; BRITO, A.; REPETTO, J.; FRAGA, M. |
Afiliación : |
ANA VIRGINIA RABAZA MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CECILIA CAJARVILLE, Departamento de Nutrición Animal, Facultad de Veterinaria, Universidad de la República, San José, Uruguay; PABLO ZUNINO, MEC/ IIBCE (Instituto de Investigaciones de Ciencias Biológicas "Clemente Estable"), Montevideo, Uruguay.; Departamento de Nutriciion Animal, Instituto de Produccion Animal, Facultad de Veterinaria, Universidad de la República, Ruta 1 km 42.5, San José 80100, Uruguay.; JOSE LUIS REPETTO CAPELLO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Departamento de Bovinos, Instituto de Producción Animal, Facultad de Veterinaria, Universidad de la República, Ruta 1 km 42, CP 80100 San José, Uruguay.; MARTIN FRAGA COTELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Effects of feed withdrawal duration on animal behaviour, rumen microbiota and blood chemistry in feedlot cattle: implications for rumen acidosis. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Animal, Volume 14 , Issue 1 , January 2020 , pp. 66 - 77. DOI: https://doi.org/10.1017/S1751731119001538 |
DOI : |
10.1017/S1751731119001538 |
Idioma : |
Inglés |
Notas : |
Article history: Received 22 October 2018 // Accepted 13 June 2019. |
Contenido : |
Abstracts: Feed withdrawal ( FW ) is a frequent issue in open outdoor feedlot systems, where unexpected circumstances can limit the animals? access to food. The relationship among fasting period, animal behaviour during feed reintroduction ( FR ) and acidosis occurrence has not been completely elucidated. Twenty steers fitted with rumen catheters were fed a high-concentrate diet (concentrate : forage ratio 85 : 15) and were challenged by a protocol of FW followed by FR. The animals were randomly assigned to one of the four treatments: FW for 12 h ( T12 ), 24 h ( T24 ), 36 h ( T36 ) or no FW (control group) followed by FR. The steers? behaviour, ruminal chemistry, structure of the ruminal microbial community, blood enzymes and metabolites and ruminal acidosis status were assessed. Animal behaviour was affected by the FW?FR challenge (P<0.05). Steers from the T12, T24 and T36 treatments showed a higher ingestion rate and a lower frequency of rumination. Although all animals were suspected to have sub-acute ruminal acidosis ( SARA ) prior to treatment, a severe case of transient SARA arose after FR in the T12, T24 and T36 groups. The ruminal pH remained below the threshold adopted for SARA diagnosis (pH value=5.6) for more than three consecutive hours (24, 7 and 19 h in the T12, T24 and T36 treatments, respectively). The FW?FR challenge did not induce clinical acute ruminal acidosis even though steers from the T36 treatment presented ruminal pH values that were consistent with this metabolic disorder (pH threshold for acute acidosis=5.2). Total mixed ration reintroduction after the withdrawal period reactivated ruminal fermentation as reflected by changes in the fermentation end-products. Ruminal lactic acid accumulation in steers from the T24 and T36 treatments probably led to the reduction of pH in these groups. Both the FW and the FR phases may have altered the structure of the ruminal microbiota community. Whereas fibrolytic bacterial groups decreased relative abundance in the restricted animals, both lactic acid producer and utiliser bacterial groups increased (P<0.05). The results demonstrated a synchronisation between Streptococcus (lactate producer) and Megasphaera (lactate utiliser), as the relative abundance of both groups increased, suggesting that bacterial resilience may be central for preventing the onset of metabolic disturbances such as ruminal acidosis. A long-FW period (36 h) produced rumen pH reductions well below and lactic acid concentration increased well above the accepted thresholds for acute acidosis without any perceptible clinical signs. MenosAbstracts: Feed withdrawal ( FW ) is a frequent issue in open outdoor feedlot systems, where unexpected circumstances can limit the animals? access to food. The relationship among fasting period, animal behaviour during feed reintroduction ( FR ) and acidosis occurrence has not been completely elucidated. Twenty steers fitted with rumen catheters were fed a high-concentrate diet (concentrate : forage ratio 85 : 15) and were challenged by a protocol of FW followed by FR. The animals were randomly assigned to one of the four treatments: FW for 12 h ( T12 ), 24 h ( T24 ), 36 h ( T36 ) or no FW (control group) followed by FR. The steers? behaviour, ruminal chemistry, structure of the ruminal microbial community, blood enzymes and metabolites and ruminal acidosis status were assessed. Animal behaviour was affected by the FW?FR challenge (P<0.05). Steers from the T12, T24 and T36 treatments showed a higher ingestion rate and a lower frequency of rumination. Although all animals were suspected to have sub-acute ruminal acidosis ( SARA ) prior to treatment, a severe case of transient SARA arose after FR in the T12, T24 and T36 groups. The ruminal pH remained below the threshold adopted for SARA diagnosis (pH value=5.6) for more than three consecutive hours (24, 7 and 19 h in the T12, T24 and T36 treatments, respectively). The FW?FR challenge did not induce clinical acute ruminal acidosis even though steers from the T36 treatment presented ruminal pH values that were consistent with ... Presentar Todo |
Palabras claves : |
ACIDOSIS RUMINAL; ENGORDE DE BOVINOS; FATTENING; FOOD RESTRICTION; LIVESTOCK; PLATAFORMA DE SALUD ANIMAL; RESTRICCIÓN NUTRICIONAL; RUMINAL ENVIRONMENT; SUB-ACUTE RUMINAL ACIDOSIS. |
Thesagro : |
COMPORTAMIENTO ANIMAL; GANADO BOVINO. |
Asunto categoría : |
L02 Alimentación animal |
Marc : |
LEADER 03782naa a2200349 a 4500 001 1060132 005 2021-04-28 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1017/S1751731119001538$2DOI 100 1 $aRABAZA, A. 245 $aEffects of feed withdrawal duration on animal behaviour, rumen microbiota and blood chemistry in feedlot cattle$bimplications for rumen acidosis.$h[electronic resource] 260 $c2019 500 $aArticle history: Received 22 October 2018 // Accepted 13 June 2019. 520 $aAbstracts: Feed withdrawal ( FW ) is a frequent issue in open outdoor feedlot systems, where unexpected circumstances can limit the animals? access to food. The relationship among fasting period, animal behaviour during feed reintroduction ( FR ) and acidosis occurrence has not been completely elucidated. Twenty steers fitted with rumen catheters were fed a high-concentrate diet (concentrate : forage ratio 85 : 15) and were challenged by a protocol of FW followed by FR. The animals were randomly assigned to one of the four treatments: FW for 12 h ( T12 ), 24 h ( T24 ), 36 h ( T36 ) or no FW (control group) followed by FR. The steers? behaviour, ruminal chemistry, structure of the ruminal microbial community, blood enzymes and metabolites and ruminal acidosis status were assessed. Animal behaviour was affected by the FW?FR challenge (P<0.05). Steers from the T12, T24 and T36 treatments showed a higher ingestion rate and a lower frequency of rumination. Although all animals were suspected to have sub-acute ruminal acidosis ( SARA ) prior to treatment, a severe case of transient SARA arose after FR in the T12, T24 and T36 groups. The ruminal pH remained below the threshold adopted for SARA diagnosis (pH value=5.6) for more than three consecutive hours (24, 7 and 19 h in the T12, T24 and T36 treatments, respectively). The FW?FR challenge did not induce clinical acute ruminal acidosis even though steers from the T36 treatment presented ruminal pH values that were consistent with this metabolic disorder (pH threshold for acute acidosis=5.2). Total mixed ration reintroduction after the withdrawal period reactivated ruminal fermentation as reflected by changes in the fermentation end-products. Ruminal lactic acid accumulation in steers from the T24 and T36 treatments probably led to the reduction of pH in these groups. Both the FW and the FR phases may have altered the structure of the ruminal microbiota community. Whereas fibrolytic bacterial groups decreased relative abundance in the restricted animals, both lactic acid producer and utiliser bacterial groups increased (P<0.05). The results demonstrated a synchronisation between Streptococcus (lactate producer) and Megasphaera (lactate utiliser), as the relative abundance of both groups increased, suggesting that bacterial resilience may be central for preventing the onset of metabolic disturbances such as ruminal acidosis. A long-FW period (36 h) produced rumen pH reductions well below and lactic acid concentration increased well above the accepted thresholds for acute acidosis without any perceptible clinical signs. 650 $aCOMPORTAMIENTO ANIMAL 650 $aGANADO BOVINO 653 $aACIDOSIS RUMINAL 653 $aENGORDE DE BOVINOS 653 $aFATTENING 653 $aFOOD RESTRICTION 653 $aLIVESTOCK 653 $aPLATAFORMA DE SALUD ANIMAL 653 $aRESTRICCIÓN NUTRICIONAL 653 $aRUMINAL ENVIRONMENT 653 $aSUB-ACUTE RUMINAL ACIDOSIS 700 1 $aBANCHERO, G. 700 1 $aCAJARVILLE,C. 700 1 $aZUNINO, P. 700 1 $aBRITO, A. 700 1 $aREPETTO, J. 700 1 $aFRAGA, M. 773 $tAnimal, Volume 14 , Issue 1 , January 2020 , pp. 66 - 77. DOI: https://doi.org/10.1017/S1751731119001538
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
02/02/2022 |
Actualizado : |
06/09/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
Circulación / Nivel : |
Nacional - -- |
Autor : |
FERRARI, V.; RODRÍGUEZ, G.; GONZÁLEZ-ARCOS, M.; VICENTE, E.; GIMÉNEZ, G.; IBÁÑEZ, F. |
Afiliación : |
VIRGINIA PAULINA FERRARI MORENA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO ROBERTO RODRÍGUEZ LAGOUTTE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MATIAS GONZÁLEZ-ARCOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS ESTEBAN VICENTE CASTRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO GIMÉNEZ FRANQUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FACUNDO IBÁÑEZ SILVA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Nutritional quality and nutraceutical potential of fruits and vegetables as a tool for genetic breeding programs. [Calidad nutricional y potencial nutracéutico de frutas y hortalizas como herramientas para elmejoramiento genético.]. [Qualidade nutricional e potencial nutracêutico de frutas e vegetais como ferramentas de melhoramento genético.] |
Complemento del título : |
Celebrating the International Year of Fruits and Vegetables. Section 1. Benefits of consuming fruits and vegetables: diets, lifestyles and |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Agrociencia Uruguay, 2021, vol. 25, NE2, e814. doi: https://doi.org/10.31285/AGRO.25.814 |
ISSN : |
2730-5066 |
DOI : |
10.31285/AGRO.25.814 |
Idioma : |
Inglés |
Notas : |
Article history: Received 25 May 2021; Accepted 20 Sep 2021; Published 05 Jan 2022.
Editores: Maximiliano Dini (Instituto Nacional de Investigación Agropecuaria (INIA), Programa Nacional de Investigación en Producción Frutícola, Estación Experimental INIA Las Brujas, Canelones, Uruguay); Guillermo A. Galván (Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal, Canelones, Uruguay).
Correspondence: Facundo Ibañez, mailto: fibanez@inia.org.uy |
Contenido : |
ABSTRACT.- Prevention of the development of chronic diseases related to metabolic syndrome has been found to depend on a healthy diet. Among healthy foods, fruits and vegetables play a very important role due to their nutrient content, especially antioxidants, vitamins and polyphenols. For 20 years, INIA has promoted the concept of quality asso-ciated to the differentiation of products in the fruit and horticultural sectors, considering aspects not only linked to the organoleptic qualities, but also the production processes that ensure food safety and nutritional contribu-tion. More recently, research works have been implemented to contribute to highlighting the role of fruits and vegetables as nutraceutical foods, contributing to the prevention of chronic non-transmissible human diseasessuch as diabetes, cancer, or obesity. Also, to contribute to the knowledge of the effects of factors as breeding and culture management on the nutritional potential and promote production, consumption and commercializa-tion. The bioactive compounds content and in vitro antioxidant activity (DPPH and ORAC) were characterized in different genotypes of native fruits, onion, potato, strawberry, sweet potato and tomato. High levels of flavo-noids (quercetin) were found in onions and advanced lines. Samples of tomatoes, potatoes, sweet potatoes,and strawberries showed high contents of phenolic compounds, ascorbic acid, anthocyanins, total carotenoids,and total antioxidant capacity (ORAC) with a great interspecies variability; so, they can be included in the devel-opment of varieties differentiated by nutraceutical attributes. The analyses conducted also demonstrate the po-tential of native fruits as sources of essential nutrients, with contents comparable to and even superior to other fruits considered "superfruits". Through selection and breeding, national varieties can be developed with out-standing organoleptic characteristics, good levels of bioactive compounds, and antioxidant properties that con-tribute to the health of the population.
.-.-.-.-.-.-.-.-.-.
RESUMEN.- Se ha encontrado que la prevención del desarrollo de enfermedades crónicas relacionadas con el síndrome metabólico depende de una dieta saludable. Entre los alimentos saludables, las frutas y las hortalizas juegan un papel muy importante por el contenido de nutrientes, sobre todos del tipo antioxidantes, vitaminas y polife-noles. Desde hace 20 años INIA ha impulsado en los rubros hortifrutícolas el concepto de calidad asociado a la diferenciación de los productos considerando aspectos no solo vinculados a las cualidades organolépticas, sino también a los procesos de producción que aseguren la inocuidad y el aporte nutricional. Más recientemente se han realizado trabajos de investigación que contribuyen a resaltar el rol de las frutas y las hortalizas como alimentos nutraceúticos; preventivos de enfermedades humanas crónicas no transmisibles como diabetes, cán-cer u obesidad. También contribuir al conocimiento de los efectos de factores como el mejoramiento genético y el manejo cultural, y promover la producción, el consumo y la comercialización. El contenido de compuestos bioactivos y la actividad antioxidante in vitro (DPPH y ORAC) se caracterizaron en diferentes genotipos de frutos nativos, cebolla, papa, frutilla, boniato y tomate. Se encontraron altos niveles de flavonoides (quercetina) en cebollas y sus líneas avanzadas. Muestras de tomates, papas, boniatos y frutillas presentaron altos contenidos de compuestos fenólicos, ácido ascórbico, antocianinas, carotenoides totales y la capacidad antioxidante total (ORAC) con una gran variabilidad interespecie; por lo que pueden incluirse en el desarrollo de variedades dife-renciadas por atributos nutracéuticos. Los análisis realizados demuestran también el potencial de las frutas nativas como fuentes de nutrientes esenciales, con contenidos comparables e incluso superiores a otras frutas consideradas «superfrutas». Mediante selección y mejoramiento genético se pueden desarrollar variedades nacionales con características organolépticas destacadas, buenos niveles de compuestos bioactivos y propie-dades antioxidantes que contribuyen a la salud de la población.
.-.-.-.-.-.-.-.-.-.-.-.-.
RESUMO.- A prevenção do desenvolvimento de doenças crônicas relacionadas à síndrome metabólica depende de uma dieta saudável. Dentre os alimentos saudáveis, frutas e hortaliças desempenham um papel fundamental devido ao conteúdo de nutrientes, principalmente antioxidantes, vitaminas e polifenóis.Há 20 anos, o Instituto Nacional de Investigación Agropecuaria (INIA) promove a qualidade associada à dife-renciação de produtos no setor de frutas e legumes. O conceito de qualidade foi ampliado a aspectos que levam em consideração não só as qualidades organolépticas e de sabor, mas também os processos de produção que garantem a segurança alimentar e o aporte nutricional. Mais recentemente, se agregou a esses temas a imple-mentação de trabalhos de pesquisa que contribuem para evidenciar o papel das frutas e hortaliças como ali-mentos preventivos de doenças humanas (Alimento Funcionais, Nutracêuticos). Com o objetivo de contribuir para o conhecimento e promoção do consumo, iniciou-se o trabalho de pesquisa de potencial nutricional das principais variedades e seleções avançadas geradas pelos programas de melhoramento hortícola e frutícola do INIA. O teor de micronutrientes e a atividade antioxidante in vitro (DPPH e ORAC) foram caracterizados em variedades e seleções de morango, frutas nativas, cebola, batata, tomate e batata doce. Altos níveis de fla-vonoides (quercetina) foram encontrados em cebolas INIA e linhas avançadas. No tomate, batata, batata doce e morango, destaca-se que os compostos fenólicos, vitamina C, antocianinas, carotenoides totais e capacidade antioxidante total (ORAC) apresentam grande variabilidade, podendo ser incluídos no desenvolvimento de va-riedades diferenciadas por atributos nutracêuticos. As análises realizadas também demonstram o potencial das frutas nativas como fontes de nutrientes essenciais, com teores comparáveis e até superiores a outras frutas consideradas "superfrutas". Através da seleção e do melhoramento genético, variedades nacionais com exce-lentes características organolépticas, bons níveis de micronutrientes e com propriedades antioxidantes que contribuem para a saúde podem ser desenvolvidas. MenosABSTRACT.- Prevention of the development of chronic diseases related to metabolic syndrome has been found to depend on a healthy diet. Among healthy foods, fruits and vegetables play a very important role due to their nutrient content, especially antioxidants, vitamins and polyphenols. For 20 years, INIA has promoted the concept of quality asso-ciated to the differentiation of products in the fruit and horticultural sectors, considering aspects not only linked to the organoleptic qualities, but also the production processes that ensure food safety and nutritional contribu-tion. More recently, research works have been implemented to contribute to highlighting the role of fruits and vegetables as nutraceutical foods, contributing to the prevention of chronic non-transmissible human diseasessuch as diabetes, cancer, or obesity. Also, to contribute to the knowledge of the effects of factors as breeding and culture management on the nutritional potential and promote production, consumption and commercializa-tion. The bioactive compounds content and in vitro antioxidant activity (DPPH and ORAC) were characterized in different genotypes of native fruits, onion, potato, strawberry, sweet potato and tomato. High levels of flavo-noids (quercetin) were found in onions and advanced lines. Samples of tomatoes, potatoes, sweet potatoes,and strawberries showed high contents of phenolic compounds, ascorbic acid, anthocyanins, total carotenoids,and total antioxidant capa... Presentar Todo |
Palabras claves : |
Antioxidants; Nutrição; Nutrition; ORAC; PLATAFORMA AGROALIMENTOS; Seleção genética; SELECCIÓN GENÉTICA. |
Thesagro : |
ANTIOXIDANTES; NUTRICION. |
Asunto categoría : |
F01 Cultivo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16727/1/Agrociencia-UY-2021-25-NE2-814.pdf
|
Marc : |
LEADER 08329naa a2200325 a 4500 001 1062736 005 2022-09-06 008 2021 bl uuuu u00u1 u #d 022 $a2730-5066 024 7 $a10.31285/AGRO.25.814$2DOI 100 1 $aFERRARI, V. 245 $aNutritional quality and nutraceutical potential of fruits and vegetables as a tool for genetic breeding programs. [Calidad nutricional y potencial nutracéutico de frutas y hortalizas como herramientas para elmejoramiento genético.]. [Qualidade nutricional e potencial nutracêutico de frutas e vegetais como ferramentas de melhoramento genético.]$h[electronic resource] 260 $c2021 500 $aArticle history: Received 25 May 2021; Accepted 20 Sep 2021; Published 05 Jan 2022. Editores: Maximiliano Dini (Instituto Nacional de Investigación Agropecuaria (INIA), Programa Nacional de Investigación en Producción Frutícola, Estación Experimental INIA Las Brujas, Canelones, Uruguay); Guillermo A. Galván (Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal, Canelones, Uruguay). Correspondence: Facundo Ibañez, mailto: fibanez@inia.org.uy 520 $aABSTRACT.- Prevention of the development of chronic diseases related to metabolic syndrome has been found to depend on a healthy diet. Among healthy foods, fruits and vegetables play a very important role due to their nutrient content, especially antioxidants, vitamins and polyphenols. For 20 years, INIA has promoted the concept of quality asso-ciated to the differentiation of products in the fruit and horticultural sectors, considering aspects not only linked to the organoleptic qualities, but also the production processes that ensure food safety and nutritional contribu-tion. More recently, research works have been implemented to contribute to highlighting the role of fruits and vegetables as nutraceutical foods, contributing to the prevention of chronic non-transmissible human diseasessuch as diabetes, cancer, or obesity. Also, to contribute to the knowledge of the effects of factors as breeding and culture management on the nutritional potential and promote production, consumption and commercializa-tion. The bioactive compounds content and in vitro antioxidant activity (DPPH and ORAC) were characterized in different genotypes of native fruits, onion, potato, strawberry, sweet potato and tomato. High levels of flavo-noids (quercetin) were found in onions and advanced lines. Samples of tomatoes, potatoes, sweet potatoes,and strawberries showed high contents of phenolic compounds, ascorbic acid, anthocyanins, total carotenoids,and total antioxidant capacity (ORAC) with a great interspecies variability; so, they can be included in the devel-opment of varieties differentiated by nutraceutical attributes. The analyses conducted also demonstrate the po-tential of native fruits as sources of essential nutrients, with contents comparable to and even superior to other fruits considered "superfruits". Through selection and breeding, national varieties can be developed with out-standing organoleptic characteristics, good levels of bioactive compounds, and antioxidant properties that con-tribute to the health of the population. .-.-.-.-.-.-.-.-.-. RESUMEN.- Se ha encontrado que la prevención del desarrollo de enfermedades crónicas relacionadas con el síndrome metabólico depende de una dieta saludable. Entre los alimentos saludables, las frutas y las hortalizas juegan un papel muy importante por el contenido de nutrientes, sobre todos del tipo antioxidantes, vitaminas y polife-noles. Desde hace 20 años INIA ha impulsado en los rubros hortifrutícolas el concepto de calidad asociado a la diferenciación de los productos considerando aspectos no solo vinculados a las cualidades organolépticas, sino también a los procesos de producción que aseguren la inocuidad y el aporte nutricional. Más recientemente se han realizado trabajos de investigación que contribuyen a resaltar el rol de las frutas y las hortalizas como alimentos nutraceúticos; preventivos de enfermedades humanas crónicas no transmisibles como diabetes, cán-cer u obesidad. También contribuir al conocimiento de los efectos de factores como el mejoramiento genético y el manejo cultural, y promover la producción, el consumo y la comercialización. El contenido de compuestos bioactivos y la actividad antioxidante in vitro (DPPH y ORAC) se caracterizaron en diferentes genotipos de frutos nativos, cebolla, papa, frutilla, boniato y tomate. Se encontraron altos niveles de flavonoides (quercetina) en cebollas y sus líneas avanzadas. Muestras de tomates, papas, boniatos y frutillas presentaron altos contenidos de compuestos fenólicos, ácido ascórbico, antocianinas, carotenoides totales y la capacidad antioxidante total (ORAC) con una gran variabilidad interespecie; por lo que pueden incluirse en el desarrollo de variedades dife-renciadas por atributos nutracéuticos. Los análisis realizados demuestran también el potencial de las frutas nativas como fuentes de nutrientes esenciales, con contenidos comparables e incluso superiores a otras frutas consideradas «superfrutas». Mediante selección y mejoramiento genético se pueden desarrollar variedades nacionales con características organolépticas destacadas, buenos niveles de compuestos bioactivos y propie-dades antioxidantes que contribuyen a la salud de la población. .-.-.-.-.-.-.-.-.-.-.-.-. RESUMO.- A prevenção do desenvolvimento de doenças crônicas relacionadas à síndrome metabólica depende de uma dieta saudável. Dentre os alimentos saudáveis, frutas e hortaliças desempenham um papel fundamental devido ao conteúdo de nutrientes, principalmente antioxidantes, vitaminas e polifenóis.Há 20 anos, o Instituto Nacional de Investigación Agropecuaria (INIA) promove a qualidade associada à dife-renciação de produtos no setor de frutas e legumes. O conceito de qualidade foi ampliado a aspectos que levam em consideração não só as qualidades organolépticas e de sabor, mas também os processos de produção que garantem a segurança alimentar e o aporte nutricional. Mais recentemente, se agregou a esses temas a imple-mentação de trabalhos de pesquisa que contribuem para evidenciar o papel das frutas e hortaliças como ali-mentos preventivos de doenças humanas (Alimento Funcionais, Nutracêuticos). Com o objetivo de contribuir para o conhecimento e promoção do consumo, iniciou-se o trabalho de pesquisa de potencial nutricional das principais variedades e seleções avançadas geradas pelos programas de melhoramento hortícola e frutícola do INIA. O teor de micronutrientes e a atividade antioxidante in vitro (DPPH e ORAC) foram caracterizados em variedades e seleções de morango, frutas nativas, cebola, batata, tomate e batata doce. Altos níveis de fla-vonoides (quercetina) foram encontrados em cebolas INIA e linhas avançadas. No tomate, batata, batata doce e morango, destaca-se que os compostos fenólicos, vitamina C, antocianinas, carotenoides totais e capacidade antioxidante total (ORAC) apresentam grande variabilidade, podendo ser incluídos no desenvolvimento de va-riedades diferenciadas por atributos nutracêuticos. As análises realizadas também demonstram o potencial das frutas nativas como fontes de nutrientes essenciais, com teores comparáveis e até superiores a outras frutas consideradas "superfrutas". Através da seleção e do melhoramento genético, variedades nacionais com exce-lentes características organolépticas, bons níveis de micronutrientes e com propriedades antioxidantes que contribuem para a saúde podem ser desenvolvidas. 650 $aANTIOXIDANTES 650 $aNUTRICION 653 $aAntioxidants 653 $aNutrição 653 $aNutrition 653 $aORAC 653 $aPLATAFORMA AGROALIMENTOS 653 $aSeleção genética 653 $aSELECCIÓN GENÉTICA 700 1 $aRODRÍGUEZ, G. 700 1 $aGONZÁLEZ-ARCOS, M. 700 1 $aVICENTE, E. 700 1 $aGIMÉNEZ, G. 700 1 $aIBÁÑEZ, F. 773 $tAgrociencia Uruguay, 2021, vol. 25, NE2, e814. doi: https://doi.org/10.31285/AGRO.25.814
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