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  1 / 1318 MEDLINE  
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PMID:29424499
Autor:Abrahamyan HT; Minasyan SM
Título:[Corrective effect of aromatherapy on indices of heart rate variability in students under exam stress conditions].
Fonte:Gig Sanit; 95(6):563-8, 2016.
ISSN:0016-9900
País de publicação:Russia (Federation)
Idioma:rus
Resumo:There were investigated changes in indices of the activity of regulatory mechanisms of heart rhythm in student under exam stress conditions and the possibility of their correction with aid of aromatherapy. The examination stress was established to be accompanied by pronounced shifts of integral and spectral indices of heart rhythm in students, indicating to the activation of the sympathetic circuit of Autonomic Nervous System in conditions of examination stress. A positive, relaxation impact of the essential oil of orange on the investigated indices was also recorded. The latter is expressed by weakly pronounced changes or lack of them in data of integral and spectral heart rate indices in students from the experimental group, that indicates to the stabilizing effect of used ethereal oil on the psycho-physiological state of students in conditions of exam stress
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Plant Oils)


  2 / 1318 MEDLINE  
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PMID:29328677
Autor:Suh JH; Niu YS; Wang Z; Gmitter FG; Wang Y
Título:Metabolic Analysis Reveals Altered Long-Chain Fatty Acid Metabolism in the Host by Huanglongbing Disease.
Fonte:J Agric Food Chem; 66(5):1296-1304, 2018 Feb 07.
ISSN:1520-5118
País de publicação:United States
Idioma:eng
Resumo:Candidatus Liberibacter asiaticus (CLas) is the presumed causal agent of Huanglongbing, one of the most destructive diseases in citrus. However, the lipid metabolism component of host response to this pathogen has not been investigated well. Here, metabolic profiling of a variety of long-chain fatty acids and their oxidation products was first performed to elucidate altered host metabolic responses of disease. Fatty acid signals were found to decrease obviously in response to disease regardless of cultivar. Several lipid oxidation products strongly correlated with those fatty acids were also consistently reduced in the diseased group. Using a series of statistical methods and metabolic pathway mapping, we found significant markers contributing to the pathological symptoms and identified their internal relationships and metabolic network. Our findings suggest that the infection of CLas may cause the altered metabolism of long-chain fatty acids, possibly leading to manipulation of the host's defense derived from fatty acids.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Fatty Acids)


  3 / 1318 MEDLINE  
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PMID:28468234
Autor:Man Y; Liang G; Jia F; Li A; Fu H; Wang M; Pan L
Endereço:Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China. manyan3669@163.com.
Título:Development of an Immunochromatographic Strip Test for the Rapid Detection of Alternariol Monomethyl Ether in Fruit.
Fonte:Toxins (Basel); 9(5), 2017 Apr 29.
ISSN:2072-6651
País de publicação:Switzerland
Idioma:eng
Resumo:A rapid, portable, and semi-quantitative immunochromatographic strip was developed for rapid and visual detection of alternariol monomethyl ether (AME). For this purpose, the anti-AME monoclonal antibody (mAb) was prepared and identified. AME coupled to bovine serum albumin (BSA) via methyl 4-bromobutanoate was prepared as immunogen. The recoveries of AME in spiked cherry and orange fruits determined by competitive ELISA were 86.1% and 80.7%, respectively. A colloidal gold nanoparticle (CGN) and CGNs-mAb conjugate were synthesized, and on this basis, a competitive colloidal gold immunochromatographic strip was developed and applied to the detection of AME toxin in fruit samples. The intensity of red density of the test line (T line) is inversely proportional to AME concentration in the range 0.1-10 ng/mL. The visual limit of detection (LOD) of AME was found to be about 10 ng/mL. The semi-quantitative detection can be completed in 10 min. Moreover, the immunochromatographic strip has lower cross-reactivity with AME analogues, and it has a good stability performance (following 3 months of storage). Hence, the colloidal gold immunochromatographic strip could be used as a semi-quantitative tool for the on-site, rapid, and visual detection of AME in fruit.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Antibodies, Monoclonal); 0 (Gold Colloid); 0 (Immunoconjugates); 0 (Lactones); 27432CM55Q (Serum Albumin, Bovine); 9006-59-1 (Ovalbumin); Y79STA800H (alternariol monomethyl ether)


  4 / 1318 MEDLINE  
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PMID:29241321
Autor:Sady M; Najgebauer-Lejko D; Domagala J
Endereço:Animal Products Technology Department, University of Agriculture in Krakow, Poland.
Título:The suitability of different probiotic strains for the production of fruit-whey beverages.
Fonte:Acta Sci Pol Technol Aliment; 16(4):421-429, 2017 Oct-Dec.
ISSN:1898-9594
País de publicação:Poland
Idioma:eng
Resumo:BACKGROUND: When designing new probiotic products, one of the most important aspects is the selection of bacterial strains with high survival rates in the matrix of the product concerned. The aim of the present research was to evaluate the potential of selected strains of probiotic bacteria for the production of fruit-whey beverages. METHODS: Orange, apple and blackcurrant whey beverages were produced, and each was inoculated with one of the following probiotic strains: Bifidobacterium lactis HN019TM; Lactobacillus aci- dophilus NCFM®; Lactobacillus paracasei Lpc-37TM; Lactobacillus rhamnosus HN001TM. The count of probiotic bacteria as well as pH and total acidity were evaluated at the 1st, 7th, 14th, 21st and 28th day of storage. RESULTS: Beverages containing L. paracasei Lpc-37TM or L. rhamnosus HN001TM were characterized by a sig- nificantly higher average number of viable cells (7.02 or 7.05 log cfu/g, respectively) than products with lactis HN019TM or L. acidophilus NCFM® (6.43 or 6.37 log cfu/g, respectively). The use of L. paracasei Lpc-37 and L. rhamnosus HN001 strains in orange and apple drinks allows the recommended count for probiotic products, 106 cfu/g for 28 days of storage, to be exceeded. Survival of the B. lactis HN019 strain fulfills the above requirements only in the orange drink. The L. acidophilus NCFM® strain was found to be the least suitable for the production of beverages, as it did not reach 6 log cfu/g in any products after 28 days of stor- age. The highest average number of bacteria was found in the orange beverages (7.14 log cfu/g). In terms of bacteria viability, blackcurrant juice was the least suitable for the production of whey probiotic drinks, due to its high acidity. CONCLUSIONS: The results of the present study indicate that careful selection of the fruit juice component, especially in terms of its acidity, is key to designing successful probiotic fruit-whey beverages. Other factors which should be taken into account to ensure a sufficient number of live probiotic cells, i.e. their therapeutic level in fruit-whey drinks, are the choice of probiotic strain and determination of the maximal shelf life.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Whey Proteins)


  5 / 1318 MEDLINE  
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PMID:29237265
Autor:Feng S; Suh JH; Gmitter FG; Wang Y
Endereço:Department of Food Science and Human Nutrition, University of Florida , 572 Newell Drive, Gainesville, Florida 32611, United States.
Título:Differentiation between Flavors of Sweet Orange (Citrus sinensis) and Mandarin (Citrus reticulata).
Fonte:J Agric Food Chem; 66(1):203-211, 2018 Jan 10.
ISSN:1520-5118
País de publicação:United States
Idioma:eng
Resumo:Pioneering investigations referring to citrus flavor have been intensively conducted. However, the characteristic flavor difference between sweet orange and mandarin has not been defined. In this study, sensory analysis illustrated the crucial role of aroma in the differentiation between orange flavor and mandarin flavor. To study aroma, Valencia orange and LB8-9 mandarin were used. Their most aroma-active compounds were preliminarily identified by aroma extract dilution analysis (AEDA). Quantitation of key volatiles followed by calculation of odor activity values (OAVs) further detected potent components (OAV ≥ 1) impacting the overall aromatic profile of orange/mandarin. Follow-up aroma profile analysis revealed that ethyl butanoate, ethyl 2-methylbutanoate, octanal, decanal, and acetaldehyde were essential for orange-like aroma, whereas linalool, octanal, α-pinene, limonene, and (E,E)-2,4-decadienal were considered key components for mandarin-like aroma. Furthermore, an unreleased mandarin hybrid producing fruit with orange-like flavor was used to validate the identification of characteristic volatiles in orange-like aroma.
Tipo de publicação: COMPARATIVE STUDY; JOURNAL ARTICLE
Nome de substância:0 (Flavoring Agents); 0 (Volatile Organic Compounds)


  6 / 1318 MEDLINE  
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PMID:28463082
Autor:Jung J; Friedrich LM; Danyluk MD; Schaffner DW
Endereço:1 Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901-8520; and.
Título:Quantification of Transfer of Salmonella from Citrus Fruits to Peel, Edible Portion, and Gloved Hands during Hand Peeling.
Fonte:J Food Prot; 80(6):933-939, 2017 06.
ISSN:1944-9097
País de publicação:United States
Idioma:eng
Resumo:Although studies have quantified bacterial transfer between hands and various materials, cross-contamination between the surface of fresh citrus fruit and the edible portions during hand peeling has not been reported. This study quantifies transfer of Salmonella to the edible portion of citrus fruit from a contaminated peel during hand peeling. Citrus fruits used for this study were Citrus sinensis (sweet orange) cultivars 'Valencia' and 'Navel', Citrus unshiu (Satsuma mandarins), Citrus reticulata × Citrus paradisi ('Minneola' tangelo or 'Honeybell'), and C. paradisi (grapefruit) cultivar 'Marsh'. An avirulent Salmonella Typhimurium LT2 (ATCC 700720) resistant to rifampin was used for all experiments. The inoculum containing approximately 9 log CFU/mL (50 µL) was spot inoculated onto the equator, stem, or styler of each fruit and allowed to dry for 24 h. Six volunteers put on single-use latex gloves and peeled inoculated fruit. Peel, edible fruit portion, and gloves were collected and enumerated separately. Three replicates of the study were performed in which each volunteer peeled two inoculated fruit of each variety (n = 36 fruit per variety). Cross-contamination from contaminated surface of citrus fruits to edible portion or gloved hands during peeling was affected by inoculation sites. Average Salmonella transfer to the edible portion ranged from 0.16% (Valencia inoculated at the equator) to 5.41% (navel inoculated at the stem). Average Salmonella transfer to gloved hands ranged from 0.41% (grapefruit inoculated at the stem) to 8.97% (navel inoculated at the stem). Most Salmonella remained on the peel of citrus fruits. The average level of Salmonella remaining on the peel ranged from 5.37% (Minneola inoculated at the equator) to 66.3% (Satsuma inoculated at the styler). When grapefruit was inoculated, the Salmonella that remained on the peel showed a bimodal pattern in which some individuals left almost all Salmonella on the peel, while others left substantially less.
Tipo de publicação: JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T


  7 / 1318 MEDLINE  
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PMID:28747329
Autor:Pereira-Caro G; Polyviou T; Ludwig IA; Nastase AM; Moreno-Rojas JM; Garcia AL; Malkova D; Crozier A
Endereço:Department of Food and Health, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA)-Alameda del Obispo, Cordoba, Spain.
Título:Bioavailability of orange juice (poly)phenols: the impact of short-term cessation of training by male endurance athletes.
Fonte:Am J Clin Nutr; 106(3):791-800, 2017 Sep.
ISSN:1938-3207
País de publicação:United States
Idioma:eng
Resumo:Physical exercise has been reported to increase the bioavailability of citrus flavanones. We investigated the bioavailability of orange juice (OJ) (poly)phenols in endurance-trained males before and after cessation of training for 7 d. Ten fit, endurance-trained males, with a mean ± SD maximal oxygen consumption of 58.2 ± 5.3 mL · kg · min , followed a low (poly)phenol diet for 2 d before drinking 500 mL of OJ containing 398 µmol of (poly)phenols, of which 330 µmol was flavanones. After the volunteers stopped training for 7 d the feeding study was repeated. Urine samples were collected 12 h pre- and 24 h post-OJ consumption. Bioavailability was assessed by the quantitative analysis of urinary flavanone metabolites and (poly)phenol catabolites with the use of high-pressure liquid chromatography-high resolution mass spectrometry. During training, 0-24-h urinary excretion of flavanone metabolites, mainly hesperetin-3'- -glucuronide, hesperetin-3'-sulfate, naringenin-4'- -glucuronide, naringenin-7- -glucuronide, was equivalent to 4.2% of OJ flavanone intake. This increased significantly to 5.2% when OJ was consumed after the volunteers stopped training for 7 d. Overall, this trend, although not significant, was also observed with OJ-derived colonic catabolites, which, after supplementation in the trained state, were excreted in amounts equivalent to 51% of intake compared with 59% after cessation of training. However, urinary excretion of 3 colonic catabolites of bacterial origin, most notably, 3-(3'-hydroxy-4'-methoxyphenyl)hydracrylic acid, did increase significantly when OJ was consumed postcessation compared with precessation of training. Data were also obtained on interindividual variations in flavanone bioavailability. A 7-d cessation of endurance training enhanced, rather than reduced, the bioavailability of OJ flavanones. The biological significance of these differences and whether they extend to the bioavailability of other dietary (poly)phenols remain to be determined. Hesperetin-3'- -glucuronide and the colonic microbiota-derived catabolite 3-(3'-hydroxy-4'-methoxyphenyl)hydracrylic acid are key biomarkers of the consumption of hesperetin- -glycoside-containing OJ and other citrus products. This trial was registered at clinicaltrials.gov as NCT02627547.
Tipo de publicação: CONTROLLED CLINICAL TRIAL; JOURNAL ARTICLE
Nome de substância:0 (Flavanones); 0 (Glucuronides); 0 (Plant Extracts); 0 (Polyphenols); E750O06Y6O (Hesperidin); HN5425SBF2 (naringenin); Q9Q3D557F1 (hesperetin)


  8 / 1318 MEDLINE  
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PMID:28455208
Autor:Félix S; Araújo J; Pires AM; Sousa AC
Endereço:Universidade Atlântica - Centro de Estudos, Sociedade, Organizações e Bem-Estar (CESOB), Antiga Fábrica da Pólvora de Barcarena 2730-036 Barcarena, Oeiras, Portugal. Electronic address: sfelix@uatlantica.pt.
Título:Soap production: A green prospective.
Fonte:Waste Manag; 66:190-195, 2017 Aug.
ISSN:1879-2456
País de publicação:United States
Idioma:eng
Resumo:A green prospective based on the reuse of waste materials such as almond shells, orange peel and used cooking oil to manufacture soap is presented. In Portugal, thousands of tons of waste are generated from used cooking oil and production of nut shells' residues is growing every year. In addition, the high consumption of citrus fruits, oranges in particular, generates large amounts of citrus peel. Therefore, it is necessary to diversify reuse mechanisms of these wastes, in order to make them back into raw materials. Complying with this trend, this work was carried out by processing and grinding almond shells, treating used oil, processing orange peels and extracting limonene, formulating and producing soap, and performing an acceptance study of the final product. Results validated a high potential of the idea in the field of environmental education, so it can be replicated in practical classes. It can also be useful for waste management, and it can support the development of community projects on an ecological approach.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Soaps)


  9 / 1318 MEDLINE  
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PMID:28873639
Autor:Feng J; Hu Y; Grant E; Lu X
Endereço:Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada; Department of Chemistry, The University of British Columbia, Vancouver Campus, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.
Título:Determination of thiabendazole in orange juice using an MISPE-SERS chemosensor.
Fonte:Food Chem; 239:816-822, 2018 Jan 15.
ISSN:0308-8146
País de publicação:England
Idioma:eng
Resumo:Thiabendazole, a systemic fungicide used to treat vegetables and fruits during postharvest process, persists as detrimental residue to consumers. We combine a molecularly imprinted polymers (MIPs) with surface enhanced Raman spectroscopy (SERS) to form a novel MISPE-SERS chemosensor and determined thiabendazole in orange juice. Kinetic and static adsorption tests validated the efficient and selective adsorption of thiabendazole using synthesized MIPs via precipitation polymerization. Synthesized MIPs were packed into solid phase extraction (SPE) cartridge to serve as tailor-made sorbents for the separation of thiabendazole in orange juice. Silver colloids synthesized by reduction of AgNO by trisodium citrate were used as SERS-active substrate to quantify the eluted thiabendazole from MISPE. The overall process including sample preparation and detection took 23min and the limit of detection of this chemosensor was 4ppm for thiabendazole in orange juice. This chemosensor can be used for rapid and sensitive detection of thiabendazole in agri-foods.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Polymers); N1Q45E87DT (Thiabendazole)


  10 / 1318 MEDLINE  
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PMID:28870923
Autor:Wikstrom J; Isacsson U; Johansson B; Lennernäs BO
Endereço:Department of Surgical Sciences, Section of Radiology, Uppsala University, Uppsala, Sweden.
Título:Magnetic Resonance Compatibility of a Transponder Aimed for Radiotherapy Positioning - A Phantom Study.
Fonte:Anticancer Res; 37(9):4993-4996, 2017 09.
ISSN:1791-7530
País de publicação:Greece
Idioma:eng
Resumo:BACKGROUND/AIM: Electromagnetic Positioning Systems (EMP) is a new position-ing technique in four-dimensional radiotherapy. Patients with implanted transponders may be referred for magnetic resonance imaging (MRI) making it important to establish the MR safety. MATERIALS AND METHODS: Oranges were prepared with transponders and imaged on a 3T MR scanner with different sequences. Computed tomography (CT) was performed as comparison. MR artifacts were assessed. An estimation of the maximum transponder de-flection force and heating was made. RESULTS: The mean measured displacement of transponders was 0.1 mm (range=0.03-0.3 mm). Artifacts were observed adjacent to transponders using all sequences. The deflection force on the transponder in the gantry was less than 38 mN. No heating was observed. CONCLUSION: The absence of any substantial movement, the weak measured deflection force and absence of observed heating speaks for the safe use of MR imaging with transponder 3T. Local artefacts makes evaluation impossible adjacent to transponders.
Tipo de publicação: JOURNAL ARTICLE



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