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| Registros recuperados: 83 | |
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| Ferreira,Soraia Viana; Barbosa,Lívia Maria dos Reis; Soares,Marcos Henrique; Marcolla,Camila Schultz; Holanda,Débora Muratori; Saraiva,Alysson. |
| ABSTRACT: This experiment was conducted to evaluate the effect of growth promoter additives an alternative to antibiotics on performance, intestinal morphology and on microbiota of 21-to-35-day-old piglets. A total of 160 commercial crossbred piglets (males and females) with initial weight of 6.10±0.709kg were allotted in a completely randomized design with five treatments: Basal diet - Negative Control (NC); Basal diet + antibiotic (PC); Basal diet + mannanoligosaccharides (MOS); Basal diet + organic acids (OA), Basal diet + mannanoligosacharides + organic acids (MOS+OA), eight replicates and four piglets per experimental unit. The inclusion of additives in the diets had no effect (P>0.05) on the final average weight of piglets. Similarly, no effects... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additives; Growth promoters; Organic acids; Prebiotics. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200651 |
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| Vilas Boas,Ana Carolina; Henrique,Paôla de Castro; Lima,Luiz Carlos de Oliveira; Decarlos Neto,Antônio. |
| Phenolic compounds and anthocyanins content in grape juices varies in the cultivar, ripening and climate characteristics. The objective of this work was to characterize and evaluate antioxidant activity of grape juices produced in southwestern Minas Gerais. Grapes were harvested, sanitized and the juices from cultivars 'Bordô', 'Isabel Precoce', 'BRS Violeta' and 'BRS Rúbea' were produced in artisanal equipment by steam extraction and stored for 120 days. The following analyzes were performed during storage: color (L *), pH, soluble solids, titratable acidity, anthocyanins, antioxidant activity (DPPH and β-caroteno/linoleic acid), total phenolics, vitamin C and organic acids. Among the cultivars evaluated, the consumption of grape juice from cultivar 'BRS... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis labrusca; Phenolics; Vitamin C; Organic acids. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500007 |
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| Vrchovska, V.; Sousa, C.; Valentão, P.; Ferreres, F.; Pereira, J.A.; Seabra, R.M.; Andrade, P.B.. |
| The ability of the aqueous extract of tronchuda cabbage (Brassica oleracea L. var. costata DC) external leaves to act as a scavenger of DPPH- and reactive oxygen species (superoxide radical, hydroxyl radical and hypochlorous acid) was investigated. A phytochemical study was also undertaken, and thirteen phenolic compounds and five organic acids were identified and quantified. Tronchuda cabbage extracts exhibited antioxidant capacity in a concentration-dependent manner in all assays, although some pro-oxidant effect was also noticed. The samples with higher phenolic and organic acid contents displayed the major antioxidant potentials. |
| Tipo: Article |
Palavras-chave: Tronchuda cabbage; Brassica oleracea L. var. costata DC; DPPH; Superoxide radical; Hydroxyl radical; Hypochlorous acid; Phenolics; Organic acids. |
| Ano: 2006 |
URL: http://hdl.handle.net/10198/744 |
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| FAÇANHA, A.R.; FAÇANHA, A.L.O.; OLIVARES, F.L.; GURIDI, F.; SANTOS, G. de A.; VELLOSO, A.C.X.; RUMJANEK, V.M.; BRASIL, F.; SCHRIPSEMA, J.; BRAZ-FILHO, R.; OLIVEIRA, M.A de; CANELLAS, L.P.. |
| A bioatividade de ácidos húmicos (AH) isolados de lodo da estação de tratamento de esgoto (AHL) e de vermicomposto (AHV) foi avaliada pela ação dessas substâncias sobre o transporte de prótons através da membrana plasmática de células de raízes de café e milho e sua relação com o desenvolvimento dessas espécies. Houve estímulo da área superficial radicular em ambas as espécies cultivadas com ambos AH, mostrando uma concentração ótima em torno de 40 mg L-1. Nessa condição, os tratamentos com AHL e AHV estimularam a H+-ATPase de membrana plasmática em plântulas de café e milho. Os AHL foram mais efetivos na promoção desses efeitos do que os AHV. A modificação do perfil cromatográfico dos AH em solução antes e após o cultivo das plântulas revelou que a... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Zea mays; Coffea arabica; Lodo residual; Ácidos orgânicos; Vermicomposto; Sewage sludge; Organic acids; Vermicomposting. |
| Ano: 2002 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/108732 |
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| Sousa, C.; Pereira, D.M.; Taveira, M.; Dopico-García, S.; Valentão, P.; Pereira, J.A.; Bento, Albino; Andrade, P.B.. |
| BACKGROUND: A study was undertaken to evaluate the effect of agronomic practices, harvesting time and leaf age on the organic acid composition and biomass production of Brassica oleracea L. var. costata DC (tronchuda cabbage). Samples were cultivated under eight different fertilisation regimes (two levels each of nitrogen, boron and sulfur, an organic fertiliser and no fertiliser) and collected at three different times. RESULTS: Principal component analysis of the data indicated significant differences. Three principal components with an eigenvalue higher than one accounted for 79.0% of the total variance of the data set. Samples obtained with conventional fertilisation were characterised by the highest values of fresh weight. External leaves showed higher... |
| Tipo: Article |
Palavras-chave: Brassica oleracea L. var. costata DC; Organic acids; Fertilisation; Principal component analysis. |
| Ano: 2009 |
URL: http://hdl.handle.net/10198/3046 |
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| Matos,Amanda Veruska Silva de; Watanabe,Pedro Henrique; Freitas,Ednardo Rodrigues; Santos,Kassia Moreira; Araújo,Lina Raquel Santos; Nepomuceno,Rafael Carlos; Vieira,Alini Mari; Vieira,Eloisa Helena Mendes. |
| Abstract: The objective of this work was to evaluate the effects of the dietary inclusion of calcium anacardate on the performance, diarrhea incidence, blood parameters, intestinal morphometry, and pH of gastrointestinal contents in piglets from 21 to 42 days of age. Sixty weaned Topigs piglets, with initial weight of 6.049±0.311 kg, were distributed in the following treatments: diet with or without antibiotic growth promoter (zinc bacitracin) and diets supplemented with increasing levels of calcium anacardate (0.4, 0.8, and 1.2%), with six replicates and two animals per experimental unit. No differences in performance (21 to 42 days of age), blood parameters, and villus height:crypt depth ratio were found between piglets fed diets containing calcium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anacardic acid; Intestinal morphometry; Organic acids; Phenolic compounds; Post-weaning; Zinc bacitracin. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001201253 |
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| Ibarra Cantún, Diego. |
| La inocuidad es un requisito importante de aceptación en el jitomate (Lycopersicum esculentum L.), para permitirle abrir nuevos mercados. En los que además, el fruto debe cumplir con ciertos estándares de calidad relacionados con sus propiedades físicas y químicas. El presente trabajo tuvo como objetivo determinar las propiedades físicas y químicas del fruto de jitomate almacenado a diferentes temperaturas en presencia de Escherichia coli (ECET). Se utilizaron frutos de jitomate variedad Charleston, cultivados en invernadero de hidroponía en el Municipio de Aquixtla, Puebla. Los frutos se sometieron a dos temperaturas de almacenamiento (7 y 22°C), inoculados con 7 log10UFC/mL de E. coli (ECET). Se evaluaron algunas propiedades físico-químicas como color,... |
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Palavras-chave: Azúcares; Acidos orgánicos; Adherencia; Lycopersicum esculentum; Adherence; Organic acids; Sugars; Estrategias para el Desarrollo Agrícola Regional; EDAR. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1696 |
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| SETOTAW, T. A.; NUNES, C. F.; SOUZA, C. S. de; SALGADO, S. L.; CARVALHO, G. R.; REZENDE, J. C. de; PEREIRA, A. A.; CANÇADO, G. M. de A.. |
| O banco de germoplasma de café da EPAMIG contém acessos muito importantes para o programa de melhoramento de Coffea arabica, os quais necessitam de caracterização em relação aos ácidos orgânicos e cafeína. Portanto, esse trabalho objetivou avaliar 64 acessos de C. arabica, C. canephora var. Robusta e Híbrido de Timor mantidos no banco de germaplasma localizado na Fazenda Experimental da EPAMIG no município de Patrocínio/MG. A avaliação foi baseada na quantificação do ácido clorogênico, trigonelina e cafeína por meio da determinação empregando HPLC Perkins Elmer com ?UV/VIS detector?. Detectou-se variabilidade em relação ao ácido clorogênico, trigonelina e cafeína entre acessos de café arábica e os outros acessos do banco de germoplasma. Isso evidencia a... |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Ácidos orgânicos; Cromatografia líquida de alta eficiência; Cafeína; Caffeine; Organic acids; Coffea arabica; High performance liquid chromatography. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1036538 |
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| Fernandes, F.; Valentão, P.; Sousa, C.; Pereira, J.A.; Seabra, R.M.; Andrade, P.B.. |
| The phenolic compounds and organic acids of turnip (Brassica rapa var. rapa L.) edible parts (leaves and stems, flower buds and roots) were determined by HPLC–DAD and HPLC–UV, respectively. The results revealed a profile composed of 14 phenolics (3-p-coumaroylquinic, caffeic, ferulic and sinapic acids, kaempferol 3-O-sophoroside-7-O-glucoside, kaempferol 3-O-sophoroside-7-O-sophoroside, kaempferol 3-O-(feruloyl/caffeoyl)-sophoroside-7-O-glucoside, kaempferol 3,7-O-diglucoside, isorhamnetin 3,7-O-diglucoside, kaempferol 3-O-sophoroside, 1,2-disinapoylgentiobiose, 1,20-disinapoyl-2-feruloylgentiobiose, kaempferol 3-O-glucoside and isorhamnetin 3-O-glucoside) and six organic acids (aconitic, citric, ketoglutaric, malic, shikimic and fumaric acids). The... |
| Tipo: Article |
Palavras-chave: Turnip; Brassica rapa var. rapa L.; Phenolic compounds; Organic acids; Antioxidant activity. |
| Ano: 2007 |
URL: http://hdl.handle.net/10198/736 |
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| OLIVEIRA, J. B. de; EGIPTO, R.; LAUREANO, O.; CASTRO, R. de; PEREIRA, G. E.; RICARDO-DA-SILVA, J. M.. |
| Over the years, viticulture has expanded to new regions outside the temperate zones, such as Northeast Brazil, India, Thailand, Myanmar, Vietnam, Bangladesh and Venezuela, characterized by the production of tropical wines. It is important for the productive sector to comprehend the effects of grapevine interaction with the characteristics of each new region on wines composition. In this study, the composition of wines of Syrah from two regions with different altitudes in Northeast Brazil were analyzed by different methodologies to characterize chemical compounds as sugar, acids, minerals, phenolics (anthocyanins, flavonols, stilbenes and condensed tannins) and the sensory profile. The wines of the Bahia region (1100 m of altitude) obtained high... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Altitude tropical region; Organic acids; Semi-arid tropical region; Syrah; Phenolic compounds. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118412 |
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| Oliveira, A.P.; Silva, L.R.; Ferreres, F.; Pinho, P. Guedes de; Valentão, P.; Silva, B.M.; Pereira, J.A.; Andrade, P.B.. |
| Ficus species possess latex-like material within their vasculatures, affording protection and selfhealing from physical attacks. In this work, metabolite profiling was performed on Ficus carica latex. Volatiles profile was determined by HS-SPME/GC-IT-MS, with 34 compounds being identified, distributed by distinct chemical classes: 5 aldehydes, 7 alcohols, 1 ketone, 9 monoterpenes, 9 sesquiterpenes and 3 other compounds. Sesquiterpenes constituted the most abundant class in latex (ca. 91% of total identified compounds). Organic acids composition was also characterized, by HPLC-UV, and oxalic, citric, malic, quinic, shikimic and fumaric acids were determined. Malic and shikimic acids were present in higher amounts (ca. 26%, each). The antioxidant potential... |
| Tipo: Article |
Palavras-chave: Ficus carica latex; Volatiles; Organic acids; Antioxidant potential; Acetylcholinesterase inhibition. |
| Ano: 2010 |
URL: http://hdl.handle.net/10198/3116 |
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| Ferreres, F.; Sousa, C.; Vrchovska, V.; Valentão, P.; Pereira, J.A.; Seabra, R.M.; Andrade, P.B.. |
| A phytochemical study was undertaken on the internal leaves of tronchuda cabbage (Brassica oleracea L. var. costata DC). Seventeen phenolic compounds were characterized and quantified by reversed-phase HPLCDAD-ESI-MSn and HPLC/DAD, respectively: quercetin 3-O-sophoroside-7-O-glucoside, 3-p-coumaroylquinic acid, kaempferol 3-O-sophoroside-7-O-glucoside, kaempferol 3-O-(caffeoyl)-sophoroside-7-O-glucoside, sinapoyl glucoside acid, kaempferol 3-O-(sinapoyl)-sophoroside-7-Oglucoside, kaempferol 3-O-(feruloyl)-sophoroside-7-Oglucoside, kaempferol 3-O-(p-coumaroyl)-sophoroside- 7-O-glucoside, 4-p-coumaroylquinic acid, sinapic acid, kaempferol 3-O-sophoroside, 3 isomeric forms of 1,2- disinapoylgentiobiose, 1-sinapoyl-2-feruloylgentiobiose,... |
| Tipo: Article |
Palavras-chave: Tronchuda cabbage internal leaves; Brassica oleracea L. var. costata DC; Phenolics; Organic acids; Antioxidant capacity. |
| Ano: 2006 |
URL: http://hdl.handle.net/10198/738 |
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| Bayão,Geraldo Fábio Viana; Marcondes,Marcos Inácio; Queiroz,Augusto César de; Pimentel,Robérson Machado; Cardoso,Lucas Ladeira; Cardoso,Alex Júnio da Silva; Sousa,Katiene Régia Silva; Batalha,Camila Delveaux Araujo. |
| ABSTRACT The objective of this study was to evaluate the chemical composition and the fermentative parameters of heart of palm waste produced from Alexander Palm, ensiled with chemical additives. Treatments consisted of silage of the sheath with or without calcium oxide. In the silage without calcium oxide, we evaluated the control silage (without additive) and the silage enriched with 5.0 g kg−1 urea (urea). In the silage with calcium oxide, we evaluated the silage enriched with 5.0 g kg−1 calcium oxide (control) and the silage enriched with 5.0 g kg−1 urea and 5.0 g kg−1 calcium oxide (urea). Experimental silos were distributed in a completely randomized design in a 2 × 2 factorial arrangement (inclusion or lack of lime × inclusion or lack of urea), with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fermentation; Forage conservation; Organic acids; Silage. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000600489 |
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| Neumann,Mikael; Nörnberg,José Laerte; Leão,Guilherme Fernando Mattos; Horst,Egon Henrique; Figueira,Danúbia Nogueira. |
| ABSTRACT: The use of nitrogen fertilizers in corn crops for silage can improve both production and, theoretically, nutritional quality, especially carbohydrate and protein fractions, thereby optimizing animal production. Thus, the aim of this study was to evaluate the effect of increasing levels of nitrogen fertilization in carbohydrate and protein fractionation on the resulting corn silage (Zea mays L.). Nitrogen fertilization was carried out in the urea form (45-00-00) in V5 stage, at the following doses: T1: 0kg N ha-1; T2: 45kg N ha-1; T3: 90kg N ha-1; and T4: 135kg N ha-1. Crops were harvested at R4 stage and submitted to ensiling in experimental PVC silos. The chemical composition of the resulting silage was evaluated after silo opening. There was no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Starch; Organic acids; C fraction; PH; Solubility. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500251 |
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| OLIVEIRA, J. B. de; EGIPTO, R.; LAUREANO, O.; CASTRO, R. de; PEREIRA, G. E.; RICARDO-DA-SILVA, J. M.. |
| The major areas of the world where viticulture is practiced enjoy temperate or cool temperature climates. When wine grapes are grown in tropical regions, edaphoclimatic factors result in distinct grape quality attributes, and production techniques also require significant adjustment. The objective of this study was to characterize the chemical compositions, in particular of phenolic compounds, of Syrah grapes grown in two location in northeast Brazil - these are also at widely different altitudes. A range of methods of phenolic extraction were used, along with classical chemical analyses including for organic acids, sugars, monomeric anthocyanins, flavonols, stilbene, condensed tannins and some of the monomeric and small oligomeric procyanidins. The... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Organic acids; Tropical region; Vitis vinifera L; Phenolic compounds; Sugars. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118402 |
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| Registros recuperados: 83 | |
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