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| Registros recuperados: 13 | |
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| Fernandes,Maurette dos Reis Vieira; Silva,Tales Alexandre Costa e; Pfenning,Ludwig Heinrich; Costa-Neto,Cláudio Miguel da; Heinrich,Tassiela Andréa; Alencar,Severino Matias de; Lima,Marisa Aparecida de; Ikegaki,Masaharu. |
| A total of 22 endophytic fungi isolated from coffee (Coffea arabica L.) were cultivated in vitro and their crude extracts tested. The screening was carried out using the agar diffusion method against Staphylococcus aureus, Escherichia coli and Candida albicans. The most effective isolate was Alternaria alternata, and subsequently, its extract was assayed. The total phenolic content was 3.44 μg GAE/mg of the crude extract. For the antibacterial and antifungal activity assays, minimum inhibitory concentrations (MIC) and minimum bactericidal and fungicidal concentrations (MBC and MFC) were determined. The ranges of MIC values were 50-100 μg/mL for S. aureus and 400-800 μg/mL for E. coli. The extract did not show activity in the tested concentrations for C.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endophytic fungi; Bioactive compounds; Alternaria alternata/extract/antioxidant activity. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000400010 |
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| Tokairin,Tatiane de Oliveira; Silva,Aline Priscilla Gomes da; Spricigo,Poliana Cristina; Alencar,Severino Matias de; Jacomino,Angelo Pedro. |
| Abstract The Atlantic Forest is recognized as a biome rich in biodiversity. Cambuci trees (Campomanesia phaea) produce fruits that may be consumed as both fresh and processed forms but are still underutilized. The aim of this study was to describe the physicochemical characteristics and bioactive compounds in cambuci fruits from Brazilian Atlantic Forest, located at Natividade da Serra-SP, Brazil. Cambuci fruits of the fifty-nine accessions were characterized according to fresh weight, pulp yield, peel percentage, longitudinal and transversal diameters (LD and TD, respectively), pH, soluble solids content (SSC), titratable acidity (TA), SSC/TA ratio, ascorbic acid, total phenolic compounds content, and antioxidant activity using the DPPH assay. The... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Campomanesia phaea; Postharvest quality; Antioxidant capacity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000500702 |
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| Silva,Aline Priscilla Gomes da; Tokairin,Tatiane de Oliveira; Alencar,Severino Matias de; Jacomino,Angelo Pedro. |
| Abstract Uvaia (Eugenia pyriformis Cambess) is a fruit tree native to the Atlantic Forest and that features peculiar aroma and flavor. Although this fruit is highly popular locally, its commercial farming is virtually nonexistent. In addition, limited studies on this fruit have been conducted. Therefore, the present study aimed to investigate the physical, chemical, and functional characteristics of two uvaia fruit populations grown in Salesópolis, SP, Brazil, in order to determine their potential for being consumed both in natura and processed. Uvaia fruits were evaluated as for skin color, whole fruit weight, longitudinal and transversal diameters, seed percentage, pulp yield, pulp firmness, pH, total soluble solids (TSS), total titratable acidity... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Eugenia pyriformis C.; Mineral and chemical characterizations; Antioxidant capacity; Phenolic compounds; Post-harvest quality. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000200905 |
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| Melo,Priscilla Siqueira; Bergamaschi,Keityane Boone; Tiveron,Ana Paula; Massarioli,Adna Prado; Oldoni,Tatiane Luiza Cadorin; Zanus,Mauro Celso; Pereira,Giuliano Elias; Alencar,Severino Matias de. |
| Atualmente, são produzidas milhões de toneladas de resíduos provenientes do processamento agroindustrial. Muitos deles são ricos em compostos bioativos sendo potenciais fontes naturais dessas substâncias. Assim, este trabalho teve como objetivo avaliar o teor de compostos fenólicos totais, a atividade antioxidante e a composição fenólica de três resíduos gerados por agroindústrias brasileiras: bagaço de uva Isabel (BI) (Vitis labrusca), bagaço de uva Verdejo (BV) (Vitis vinifera) e bagaço de goiaba (BG) (Psidium guajava). Os resultados do teor de compostos fenólicos totais (mg GAE g-1) encontrados nos extratos etanólicos e aquosos dos resíduos foram, respectivamente: BV (20,94±0,46; 8,03±0,43)> BI (16,57±0,19; 4,41±0,01)> BG (3,41±0,09; 1,88±0,06).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Resíduos agroindustriais; Compostos fenólicos; Atividade antioxidante; DPPH ●; ABTS ●; Auto-oxidação do sistema beta-caroteno/ácido linoléico; CG-EM. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000600027 |
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| Daiuto,Érica Regina; Tremocoldi,Maria Augusta; Alencar,Severino Matias de; Vieites,Rogério Lopes; Minarelli,Phillip Herbest. |
| O abacate é um fruto muito nutritivo, sendo a polpa a principal parte utilizada para consumo in natura, na forma de sobremesa, saladas, molhos e cosméticos, além de ser utilizada para extração de óleo. Os resíduos, casca e semente, ainda são pouco explorados cientificamente quanto ao seu potencial nutritivo e funcional. Neste trabalho, amostras liofilizadas da casca, polpa e semente de abacate 'Hass'foram submetidas a análises de composição centesimal, minerais, teor de compostos fenólicos totais e capacidade antioxidante. A polpa apresentou elevado teor de lipídios em relação à casca e à semente do abacate. Os elementos minerais foram superiores na casca dos abacates. A casca e a semente possuem maior teor de compostos fenólicos e atividade antioxidante... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Persea americana Mill; Minerais; Casca; Semente; Propriedade funcional. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000200018 |
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| Braga,Gilberto Costa; Melo,Priscilla Siqueira; Bergamaschi,Keityane Boone; Tiveron,Ana Paula; Massarioli,Adna Prado; Alencar,Severino Matias de. |
| ABSTRACT: The objective of this study was to determine and correlate the extraction yields, antioxidant activity, total phenolics and total flavonoids from grape, mango and peanut agro-industrial by-products. The β-carotene/linoleic acid autoxidation system and scavenging capacity for DPPH and ABTS free radicals assays were used. The results were expressed in terms of lyophilized sample or dry extract. Mango bagasse exhibited the highest extraction yield (37.07%) followed by peanut skin (15.17%) and grape marc (7.92%). In terms of lyophilized sample, total phenolics did not vary significantly among the residues evaluated (average of 60.33mg EAG g-1); however, when they were expressed as dry extract grape marc exhibited the highest total phenolic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Total phenolics; Total flavonoids; Ethanolic extraction. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000801498 |
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| Maia,Michelle de Oliveira; Susin,Ivanete; Pires,Alexandre Vaz; Gentil,Renato Shinkai; Ferreira,Evandro Maia; Mendes,Clayton Quirino; Alencar,Severino Matias de. |
| The objective in this study was to determine growth, carcass characteristics, chemical composition and fatty acid profile of the longissimus dorsi of crossbred Boer × Saanen kids fed castor oil. Twenty-four kids (12 males and 12 females) were assigned in a randomized complete block design with two treatments and twelve replications. Blocks were defined according to weight, gender and initial age of animals for the evaluation of performance. The experimental treatments consisted of two diets containing 900 g concentrate/kg: a control diet (without addition of oil) and another containing castor oil at 30 g/kg (on a dry matter basis). After they reached an average body weight of 25 kg, males were slaughtered for the evaluation of carcass characteristics,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conjugated linoleic acid; Feedlot; Lipid supplementation. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001100007 |
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| Rodrigues,Gustavo Henrique; Susin,Ivanete; Pires,Alexandre Vaz; Alencar,Severino Matias de; Mendes,Clayton Quirino; Gentil,Renato Shinkai. |
| Objetivou-se com este trabalho avaliar os efeitos da substituição do milho por polpa cítrica na composição química e no perfil de ácidos graxos do músculo longissimus dorsi de cordeiros. Utilizaram-se 32 cordeiros Santa Inês não-castrados abatidos aos 141 dias de idade com peso médio de 33 kg. Os cordeiros foram alimentados com ração contendo 90% de concentrado (milho moído e/ou polpa cítrica, farelo de soja e minerais) e 10% de feno de "coastcross" (Cynodon spp). A polpa cítrica foi adicionada nos níveis de 23,7; 46,1; e 68,4% da matéria seca em substituição a 33, 67 e 100% do milho, respectivamente. A substituição total do milho pela polpa cítrica promoveu aumento de 177% na concentração de ácido linolênico (C18:3), enquanto a substituição parcial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Co-produtos; Ácido linoleico conjugado; Ovinos; Pectina; Santa Inês. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000600025 |
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| Silva,Aline Priscilla Gomes da; Spricigo,Poliana Cristina; Freitas,Thais Pádua de; Acioly,Thiago Machado da Silva; Alencar,Severino Matias de; Jacomino,Angelo Pedro. |
| Abstract Pereskia aculeata Miller is a native cactaceae found from the Northeast to the South of Brazil. This plant is recognized by the high nutritional value of their leaves, which are the most used in cooking and folk medicine. However, studies on the chemical characteristics and antioxidant capacity of the ora-pro-nobis fruits are scarce. Therefore, the aim of this study was to determine the best harvest point of the ora-pro-nobis fruits to optimize the content of bioactive compounds and their antioxidant capacity. The fruits were manually harvested, defined by their peel colors in three maturity stages: unripe (green), intermediate (yellowish green), and ripe (yellow) stages. The following attributes were evaluated: soluble solids (SS), titratable... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pereskia aculeata Miller; Maturity index; Harvest point; Postharvest; Brazilian native fruits. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000300902 |
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| Braga,Gilberto Costa; Prado,Adna; Pinto,Jair Sebastião da Silva; Alencar,Severino Matias de. |
| The profile of volatile compounds of yellow passion fruit juice was analyzed by solid phase microextraction headspace (HS-SPME) and optimized static headspace (S-HS) extraction techniques. Time, temperature, NaCl concentration and sample volume headspace equilibrium parameters was adjusted to the S-HS technique. The gaseous phase in the headspace of samples was collected and injected into a gas chromatograph coupled to a mass spectrometer. In the HS-SPME technique was identified 44 volatile compounds from the yellow passion fruit juice, but with S-HS only 30 compounds were identified. Volatile esters were majority in both techniques, being identified ethyl butanoate, ethyl hexanoate, (3z)-3-hexenyl acetate, hexyl acetate, hexyl butanoate and hexyl... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora edulis f. flavicarpa Deg.; GC/MS; SPME; HS; Aroma profile.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000200356 |
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| Registros recuperados: 13 | |
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