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| Registros recuperados: 3.119 | |
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| BRAGA,Dayana Calixto; LIBERATO,Maria da Conceição Tavares Cavalcanti; LIMA,Victor Luís Ferreira; ARAÚJO NETO,José Amilcar Mendes de. |
| Abstract Honey has different physical and chemical properties because it is produced from the nectar of plants. The present work had the objective of analyzing laboratory tests on honey bee Melipona subnitida D. from Ceará, in comparing them with other honeys from the Northeast Region, making it possible to know better the standards of these honeys, in order to verify their suitability to the Brazilian legislation and contribute to a future more appropriate and specific legislation for the honey of the native bees, since the existing legislation only addresses bee products from Apis mellifera L. Studies were correlated with Fiehe/hydroxymethylfurfural (HMF) in addition to pH/acidity, Lund, lugol, moisture, ash, soluble solids (°Brix) and coloring. For the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bee; Quality; Specific legislation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005031107 |
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| Valério,Melissa Alessandra; Ramos,Maria Isabel Lima; Braga Neto,José Antônio; Macedo,Maria Lígia Rodrigues. |
| Considering that annatto seeds are rich in protein, the present work aimed to evaluate the biological quality of this nutrient in the meal residue originating from annatto seed processing. We determined the general composition, mineral levels, amino acid composition and chemical scores, antinutritional factors, and protein quality using biological assays. The following values were obtained: 11.50% protein, 6.74% moisture, 5.22% ash, 2.22% lipids, 42.19% total carbohydrates and 28.45% fiber. The residue proved to be a food rich in fiber and also a protein source. Antinutritional factors were not detected. The most abundant amino acids were lysine, phenylalanine + tyrosine, leucine and isoleucine. Valine was the most limiting amino acid (chemical score... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological value; Protein quality; Annatto. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000200326 |
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| ZUANAZZI,Jovana Silva Garbelini; LARA,Jorge Antonio Ferreira de; GOES,Elenice Souza dos Reis; ALMEIDA,Fernanda Losi Alves de; OLIVEIRA,Carlos Antonio Lopes de; RIBEIRO,Ricardo Pereira. |
| Abstract We evaluated the effect of the length of stay out of water on stress, gene expression, pH variation, blood parameters, histological analysis and water holding capacity (WHC) in fillets of the Nile tilapia (Oreochromis niloticus) cultivated in net-tanks. For this purpose, the fishes were maintained out of water under different periods of anoxia. Three and 6 min of anoxia in the pre-slaughter period increased the blood levels and mRNA expression of heat shock protein 70 the Nile tilapia and produced fillets with a less firm texture (greater sarcomere length). The evaluated periods of anoxia did not markedly affect pH and WHC. These results demonstrate that a pre-slaughter period of acute stress of up to 6 min does not considerably affect the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HSP70; Oreochromis niloticus; PH; Sarcomere length; Water holding capacity. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000100195 |
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| CHENG,Guo; ZHOU,Si-Hong; WEN,Ren-De; Xie,Tai-Li; HUANG,Yu; YANG,Ying; GUAN,Jing-Xi; XIE,Lin-Jun; ZHANG,Jin. |
| Abstract The anthocyanin profiles and CIELAB color values of nine wines in Vitis germplasms from southern China were compared. The results showed that the anthocyanin composition of wines from one hybrid between V. vinifera and V. labrusca (‘Moldova’), two V. labrusca varieties (‘Conquistador’ and ‘Saint-Croix’), one V. quinquangularis variety (‘Yeniang No.2’), one hybrid between V. quinquangularis and V. vinifera (‘NW196’), one V. davidii variety (‘Xiangniang No.1’) and one V. rotundifolia variety (‘Noble’) were dominated by anthocyanidin 3,5-O-diglucosides. All these were quite different from V. vinifera wines (‘Cabernet Sauvignon’ and ‘Marselan’), which were characterized by the monoglucoside and pyranoanthocyanins. 3',4',5'-substituted anthocyanins... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthocyanin; Wine; HPLC-MS; V. germplasm; Variety. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000300513 |
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| GRAJALES-LAGUNES,Alicia; CABRERA-RUIZ,Luis; GUTIÉRREZ-MICELI,Federico; RUIZ-CABRERA,Miguel Angel; DENDOOVEN,Luc; ABUD-ARCHILA,Miguel. |
| Abstract Yam bean (Pachyrhizus erosus (L.) Urb.) tuber has a low carbohydrate content and contains several aminoacids, but contains few active compounds, such as vitamins and antioxidants. Anthocyanins are antioxidants found in Rubus fructicosus L. The osmotic drying is a technique that can be used to impregnate antioxidants in a matrix, so the objective of this study was to impregnate yam bean tuber slices with anthocyanin. The effect of temperature (40, 50 and 60oC), sucrose content (40, 50 and 60oBrix) and vacuum pulse (0, 300 and 600 mbar) on water loss (WL), solid gain (SG), color changes (ΔΕ) and anthocyanin concentration (ΔA) during osmotic drying of yam bean slices was determined. Polynomial equations were used to determine changes in WL, SG, ΔΕ... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthocyanin; Impregnation; Optimization; Osmotic drying; Yam bean. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000400922 |
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| Gouvêa,Ana Cristina Miranda Senna; Araujo,Manuela Cristina Pessanha de; Schulz,Daniel Filisberto; Pacheco,Sidney; Godoy,Ronoel Luis de Oliveira; Cabral,Lourdes Maria Corrêa. |
| Availability of analytical standards is a critical aspect in developing methods for quantitative analysis of anthocyanins. The anthocyanins cyanidin-3-O-glucoside and cyanidin-3-O-rutinoside were isolated from samples of freeze-dried açaí (Euterpe oleraceae Mart.), which is a round and purple well-known palm fruit in Brazil, and then used as standards. The isolation of the anthocyanins was performed by High Performance Liquid Chromatography (HPLC), using an adapted six-channel selection valve. The identification of anthocyanin pigments in açaí was based on mass spectrometric data for molecular ions and MS-MS product ions and on previous published data. After the collection procedure, standards with a high purity grade were obtained and an external standard... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthocyanins; Standard; Isolation; Açaí; Euterpe oleraceae Mart.; HPLC. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000100006 |
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| HWANG,Jung Seok; LEE,Su Bi; CHOI,Mi-Jung; KIM,Jun Tae; SEO,Han Geuk. |
| Abstract We investigated the effects of a turmeric extract-loaded nanoemulsion (TENE) on lipid accumulation in 3T3-L1 adipocytes and in mice fed a high fat diet (HFD). The accumulation of intracellular lipid in 3T3-L1 adipocytes was significantly inhibited by TENE, according to Oil red O and Nile Red staining. This inhibitory effect of TENE on adipocyte differentiation was associated with lower expression levels of the adipocyte-specific genes, PPARγ, aP2, and C/EBPα. In HepG2 hepatocytes, TENE attenuated palmitate-induced intracellular accumulation of lipid and ROS. In mice fed a HFD, TENE significantly reduced the serum levels of total cholesterol, triglycerides, and LDL and increased HDL levels. These effects of TENE were accompanied by reductions in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adipogenic differentiation; High fat diet; Nanoemulsion; Turmeric; 3T3-L1 preadipocytes. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600439 |
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| PAIM,Marcelo Pinto; MACIEL,Mônica Jachetti; WESCHENFELDER,Simone; BERGMANN,Guiomar Pedro; AVANCINI,César Augusto Marchionatti. |
| Abstract Hibiscus sabdariffa L. is used in traditional medicine because of its bioactive properties, such as antioxidant and antibacterial. Escherichia coli is a Gram-negative bacteria and as an indicator of contamination in food. The aim of this work was to evaluate the anti-Escherichia coli effect and the change in pH on the control of aerobic mesophilic microorganisms, using hydroethanolic extract of H. sabdariffa L. in different concentrations in a meat model, verifying its potential as food additive for microbiological stability on ground beef during cooling storage. For the preparation of the treatments, the meat experimental units were elaborated with different concentrations of the vegetal extract (5, 10, 15 and 20%), ground beef and contaminated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibacterial activity; Ground beef; Vegetable extracts. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000400647 |
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| LÓPEZ-MENESES,Ana Karenth; PLASCENCIA-JATOMEA,Maribel; LIZARDI-MENDOZA,Jaime; ROSAS-BURGOS,Ema Carina; LUQUE-ALCARAZ,Ana Guadalupe; CORTEZ-ROCHA,Mario Onofre. |
| Abstract Essential oils (EO) of eucalyptus (Eucalyptus globulus L.), thymus (Thymus capitatus L.) pirul (Schinus molle L.) were evaluated for their efficacy to control Aspergillus parasiticus and Fusarium moniliforme growth and their ability to produce mycotoxins. Data from kinetics radial growth was used to obtain the half maximal inhibitory concentration (IC50). The IC50 was used to evaluate spore germination kinetic and mycotoxin production. Also, spore viability was evaluated by the MTT assay. All EO had an effect on the radial growth of both species. After 96 h of incubation, thymus EO at concentrations of 1000 and 2500 µL L–1 totally inhibited the growth of F. moniliforme and A. parasiticus, respectively. Eucalyptus and thymus EO significantly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antifungal properties; Essential oils; Mycotoxin production; Aspergillus parasiticus; Fusarium moniliforme. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000400664 |
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| Janakat,Sana; Al-Nabulsi,Anas Abdel Rauof; Allehdan,Sabika; Olaimat,Amin Naser; Holley,Richard Alan. |
| The antimicrobial activity of a methanolic extract of amurca (olive oil lees) was determined against both Gram-positive (L. monocytogenes and S. aureus) and Gram-negative (E. coli O157:H7 and S. enteritidis) foodborne pathogens at 10 °C or 37 °C using microdilution and disk diffusion methods, and its relative activity was compared to selected antibiotics. Minimum inhibitory (MIC) and minimum bactericidal (MBC) concentrations of amurca extract ranged from 60 to 80 µl/ml at 37 °C after 24 h against all tested strains. At 10 °C, amurca was more inhibitory with MIC and MBC values of 40 and 60 µl/ml, respectively, after 7 d against tested strains. Amurca at 40 µl/ml reduced numbers of tested pathogens by 2.5 to 3.2 log10 CFU/ml at 10 °C after 7 d, but was not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amurca; Foodborne pathogens; Antimicrobial activity; Olive oil; Phenolic compounds. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000200259 |
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| AMARAL,Thiago Yamamoto; PADILHA,Igor Gomes; PRESÍDIO,Gustavo Alvares; SILVEIRA,Edmo Arruda Aguiar Sobreira da; DUARTE,Alysson Wagner Fernandes; BARBOSA,Ana Paula Fernandes; BEZERRA,Antônio Fernando de Souza; LÓPEZ,Ana Maria Queijeiro. |
| Abstract Considering that Helicobacter pylori, a bacterium able to colonize the upper gastrointestinal tract and cause mucosal injury, not always can be effectively eradicated by the traditional approaches, there is an interest in alternative therapies until a vaccine be available. Honey is a food supplement with high carbohydrate content and antioxidant activity, as well as broad antimicrobial spectrum. After analyzing the physicochemical and in vitro antimicrobial properties of an Apis mellifera honey from the Atlantic forest of Alagoas / Brazil, the purpose of the present work was evaluate its in vivo effects against Helicobacter pylori in the gastric mucosa of Wistar rats. First, it was verified the success of inoculation/infection of the pathogen in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gastritis; Peptic ulcer; Antioxidant; Anti-inflammatories; Antibiotic. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000500034 |
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| Fraga Cotelo,Martín; Perelmuter Schein,Karen; Giacaman Salvo,Sheila Solange; Zunino Abirad,Pablo Miguel; Carro Techera,Silvana Beatriz. |
| Uruguayan artisan cheese is elaborated with raw milk and non-commercial starters. The associated native microbiota may include lactic acid bacteria and also potentially pathogenic bacteria. Lactic acid bacteria were isolated from artisan cheese, raw milk, and non-commercial starter cultures, and their potential bacteriocin production was assessed. A culture collection of 509 isolates was obtained, and five isolates were bacteriocin-producers and were identified as Enterococcus durans,Lactobacillus casei, and Lactococcus lactis. No evidence of potential virulence factors were found in E. durans strains. These are promising results in terms of using these native strains for cheese manufacture and to obtain safe products. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactic acid bacteria; Bacteriocins; Artisan cheese. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000400029 |
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| CRUZ-RAMÍREZ,Susana-Gabriela; LÓPEZ-SAIZ,Carmen-María; ROSAS-BURGOS,Ema-Carina; CINCO-MOROYOQUI,Francisco-Javier; VELÁZQUEZ,Carlos; HERNÁNDEZ,Javier; BURGOS-HERNÁNDEZ,Armando. |
| Abstract The search for chemopreventive/chemoprotective compounds in marine organism has been extensively reported; however, the presence of these compounds in octopus has been incipiently explored. In this research, the antimutagenic, antiproliferative, and antioxidant potential of three crude extracts (methanolic, acetonic, and hexanic) from Paroctopus limaculatus was investigated. Antimutagenic activity against aflatoxin B1 (AFB1) was evaluated through the Ames test using Salmonella typhimurium tester strains TA98 and 100. Antiproliferative activity was assessed using the standard MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide) assay on M12.C3.F6 murine cell line. Antioxidant activity was assessed using the DPPH... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Octopus; Biological activity; Chemopreventive. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000400722 |
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| Wobeto,Carmen; Corrêa,Angelita Duarte; Abreu,Celeste Maria Patto de; Santos,Custódio Donizete dos; Pereira,Henrique Victor. |
| In Brazil, the cassava leaf meal (CLM) has been used to strive against undernourishment because it is a high source of vitamins and minerals. However, the wide variation in the chemical composition of the different cultivars, as well as their antinutritional substances may be a restriction to their uses. The levels of some antinutrients in CLM from five cultivars at three ages of the plant (TAP) were investigated, in order to select the cultivars and plant ages that would be more appropriate for human consumption. The lowest contents of antinutrients were observed in the 12-month old plants, except for nitrate and hemagglutinin from which the lowest contents were found for the 17 month old ones. The cultivar IAC 289-70 had the lowest antinutrient levels,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cassava leaves; Cyanide; Polyphenol; Saponin; Hemagglutinin; Cultivars. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612007000100019 |
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| MORALES-ÁVILA,Úrsula Mireya; BECERRA-VERDÍN,Eduardo Mendeleev; SÁYAGO-AYERDI,Sonia GUADALUPE; TOLMAN,John P.; MONTALVO-GONZÁLEZ,Efigenia. |
| Abstract In this work, the effect of the intake of a low-fat diet supplemented with a fruit puree (guava-strawberry, guava-blackberry, guava-soursop or guava-passion fruit) by obese rats on reduction of body weight, lipid profile, and liver enzyme activity was evaluated. The rats (n=6 for each treatment) were induced to obesity with a high-fat diet for 4 weeks, then they were fed with a low-fat diet plus a fruit puree for 4 weeks. Healthy rats and obese rats fed with standard diet as controls were considered. The additional consumption of fruit purees was associated with a reduction in body weight (16-24%), a control in the metabolism of plasma lipids decreasing the levels of total cholesterol (59-68%) and triacylglycerols (61-82%). We found a significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fruit purees; Anti-obesity; Liver enzymes; Hepatoprotective. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005004203 |
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| Registros recuperados: 3.119 | |
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