Fatty acid composition and antioxidant levels in muscle tissue of different Mediterranean marine species of fish and shellfish   总被引：6，自引：0，他引：6  

Passi S  Cataudella S  Di Marco P  De Simone F  Rastrelli L 《Journal of agricultural and food chemistry》2002,50(25):7314-7322

The levels of hydrophilic, lipophilic, and enzymatic antioxidants, as well as the fatty acids composition, of triglyceride and phospholipid fractions were determined in the muscle tissue of 21 species of teleosts, 3 species of cephalopods, and 6 species of crustaceans, just caught from the central Tyrrhenian Sea (Mediterranean Sea). The enzymatic activities and the levels of low-molecular-weight antioxidants, and the percentages of fatty acids, showed marked interspecies differences. Our results showed that total polyunsaturated fatty acids (21.7-61.5%) were the highest, followed by saturated (16.9-41.3%) and monounsaturated (9.1-42.8%) fatty acids. The total n-3 fatty acids content (16.6-57.1%) was found to be higher than the total n-6 fatty acids content (4.1-10.6%). All of the species studied had an n-3/n-6 ratio of more than 1, confirming the great importance of fish and shellfish as a significant dietary source of n-3 polyunsaturated fatty acids and their beneficial role in the Mediterranean type of diet.  相似文献   

SBSE-GC-ECD/FPD in the analysis of pesticide residues in Passiflora alata Dryander herbal teas     

Bicchi C  Cordero C  Iori C  Rubiolo P  Sandra P  Yariwake JH  Zuin VG 《Journal of agricultural and food chemistry》2003,51(1):27-33

Stir bar sorptive extraction (SBSE) in combination with GC-ECD/FPD analysis is here applied to the determination of the residues of 11 pesticides (hexachlorobenzene, lindane, chlorothalonil, parathion methyl, parathion ethyl, fenitrothion, malathion, dieldrin, alpha- and beta-endosulfan, and tetradifon) in herbal teas prepared with Passiflora alata Dryander spiked leaves. The method was optimized using spiked herbal teas in a range from 0.05 to 1 pg/microL for organochlorine pesticides and from 0.15 to 3 pg/microL for organophosphorus pesticides. The method is reproducible and repeatable with recoveries calculated from herbal teas prepared with spiked plant material versus spiked herbal teas, varying from about 30% for tetradifon to about 90% for parathion methyl and malathion. The limits of quantitation (LOQs) ranged from 0.017 pg/microL for lindane to 0.117 pg/microL for malathion.  相似文献   

Nutritional value of cherry tomatoes (Lycopersicon esculentum Cv. Naomi F1) harvested at different ripening stages     

Raffo A  Leonardi C  Fogliano V  Ambrosino P  Salucci M  Gennaro L  Bugianesi R  Giuffrida F  Quaglia G 《Journal of agricultural and food chemistry》2002,50(22):6550-6556

The average content of some classes of antioxidants is generally higher in cherry tomatoes than in normal-sized berries. The aim of this work was to assess the nutritional value of cherry tomato (cv. Naomi F1) by investigating the compositional pattern of berries harvested at different ripening stages and evaluating, in particular, all of the main antioxidants (carotenoids, ascorbic acid, phenolic compounds, and alpha-tocopherol) and the antioxidant activity of the water-soluble and water-insoluble fractions. Results confirmed the relatively high level of carotenoids in cherry tomato but showed that not all biologically active compounds necessarily increase in tomatoes picked at later stages of ripeness. Cherry tomatoes harvested at full ripeness exhibited the highest level of carotenoids and antioxidant activity in the water-insoluble fraction. On the other hand, no significant differences in ascorbic acid content were observed at different ripening stages, whereas the main phenolics content and the antioxidant activity of water-soluble fraction showed slight, but significant, decreases at later stages of ripeness.  相似文献   

Short-term effects of municipal solid waste compost amendments on soil carbon and nitrogen content, some enzyme activities and genetic diversity   总被引：2，自引：0，他引：2  

Carmine Crecchio  Maddalena Curci  Rosaria Mininni  Patrizia Ricciuti  Pacifico Ruggiero 《Biology and Fertility of Soils》2001,34(5):311-318

Municipal solid waste (MSW) composts have been frequently used as N and C amendments to improve soil quality and to support plant growth, with the additional benefit of reducing waste disposal costs. However, attention has been paid to the risks of MSW use for the soil environment. The presence of heavy metals in MSW composts can affect some microbiological characteristics of soil such as the structure of the soil microbiota, which are responsible for the transformations making nutrients available to plants. The effects of MSW compost and mineral-N amendments in a 2-year field trial on some physical-chemical properties, some enzyme activities and the genetic diversity of cropped plots (sugar beet-wheat rotation) and uncropped plots were investigated. Variations of pH were not statistically related to MSW compost and mineral-N amendments, or to the presence of the crop. Amendment with MSW compost increased the organic C and total N contents, and dehydrogenase and nitrate reductase activities of soil. In cropped plots amended with MSW compost, dehydrogenase activity was positively correlated with #-glucosidase activity, and both enzyme activities with organic C content. No MSW compost dosage effect was detected. No effects were observed on denaturing gradient gel electrophoresis and amplified rDNA restriction analysis patterns, indicating that no significant change in the bacterial community occurred as a consequence of MSW amendment.  相似文献   

Parasitological Survey on Stray Cat Colonies from the Veneto Region     

Natale  A.  Frangipane di Regalbono  A.  Zanellato  G.  Cavalletto  M.  Danesi  P.  Capelli  G.  Pietrobelli  M. 《Veterinary research communications》2007,31(1):241-244

Veterinary Research Communications - Natale, A., Frangipane di Regalbono, A., Zanellato, G., Cavalletto, M., Danesi, P., Capelli, G. and Pietrobelli, M., 2007. Parasitological survey on stray cat...  相似文献   

Pathology in practice. Severe, chronic, pyogranulomatous rhinosinusitis with necrosis and fungal septate hyphae consistent with Fusarium spp infection     

Vascellari M  Carminato A  Danesi P  Carniel M  Granato A  Stocco N  Mutinelli F 《Journal of the American Veterinary Medical Association》2011,238(4):449-451

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Synaptic pruning by microglia is necessary for normal brain development   总被引：1，自引：0，他引：1  

Paolicelli RC  Bolasco G  Pagani F  Maggi L  Scianni M  Panzanelli P  Giustetto M  Ferreira TA  Guiducci E  Dumas L  Ragozzino D  Gross CT 《Science (New York, N.Y.)》2011,333(6048):1456-1458

Microglia are highly motile phagocytic cells that infiltrate and take up residence in the developing brain, where they are thought to provide a surveillance and scavenging function. However, although microglia have been shown to engulf and clear damaged cellular debris after brain insult, it remains less clear what role microglia play in the uninjured brain. Here, we show that microglia actively engulf synaptic material and play a major role in synaptic pruning during postnatal development in mice. These findings link microglia surveillance to synaptic maturation and suggest that deficits in microglia function may contribute to synaptic abnormalities seen in some neurodevelopmental disorders.  相似文献   

Assessing Settleability of Dry and Wet Weather Flows in an Urban Area Serviced by Combined Sewers     

Patrizia Piro  Marco Carbone  Giovanni Tomei 《Water, air, and soil pollution》2011,214(1-4):107-117

Settleability of dry and wet weather flow samples from a combined sewer system was examined by settling column tests, in order to improve understanding of settling processes and obtain information for design of settling tanks. In fact, these tests mimic the actual settling processes and allow evaluating total suspended solids (TSS) removal by settling. Therefore, it is also possible to assess, indirectly, removals of other pollutants, such as heavy metals, which are generally transported by solid particles in sewage. Towards this end, dry and wet weather flow samples were collected in the Liguori Channel catchment and analyzed in the laboratory for Water Supply and Sewerage (Acquedotti e Fognature) of the University of Calabria for TSS concentrations according to the Standard Methods. The settleability study revealed that removals of TSS in dry weather samples (i.e., sanitary sewage) were greater than in wet weather samples (WW), using the same experimental procedures. In particular, 65% of TSS was removed in dry weather samples at a depth of 3?m for a detention time of 40?min; while in wet weather samples the comparable removal efficiency was less than 60%.  相似文献   

DSS tool for the implementation and operation of an umbilical system applying organic fertiliser     

Patrizia Busato  Claus G. Sørensen  Dimitris Pavlou  Dionysis D. Bochtis  Remigio Berruto  Anna Orfanou 《Biosystems Engineering》2013,114(1):9-20

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Cytotoxic effect of potato aspartic proteases (StAPs) on Jurkat T cells     

Julieta R. Mendieta  Carmela Fimognari  Gustavo R. Daleo  Patrizia Hrelia  María G. Guevara 《Fitoterapia》2010,81(5):329-335

StAPs are potato aspartic proteases with cytotoxic activity against plant pathogens and spermatozoa. StAPs cytotoxic activity is selective, since these proteins do not exert toxic effect on plant cells and erythrocytes. In this work, we investigated the capacity of StAPs to exert cytotoxicity on human leukaemia cells. Obtained results show that StAPs induce apoptosis on Jurkat T cells after a short time of incubation in a dose-dependent manner. However, no significative effect on the T lymphocytes viability was observed at all StAPs incubation times and concentrations tested. These results suggest that StAPs can be conceptually promising leads for cancer therapy.  相似文献