http://hdl.handle.net/10400.15/9 Artigos em revistas internacionais Sat, 07 Sep 2019 21:20:06 GMT 2019-09-07T21:20:06Z http://hdl.handle.net/10400.15/2579 Título: WineWATERFOOTPRINT: sustainable use of water along the wine chain Autor: Oliveira, Margarida Fri, 01 Jun 2018 00:00:00 GMT http://hdl.handle.net/10400.15/2579 2018-06-01T00:00:00Z http://hdl.handle.net/10400.15/2518 Título: Challenges for modern wine production in dry areas: dedicated indicators to preview wastewater flows Autor: Oliveira, Margarida; Costa, J. M.; Fragoso, Rita; Duarte, Elizabeth Resumo: Wine production is an important socio-economic activity in Mediterranean countries. This study is focused on wine production under warm and dry climate conditions in south Portugal, in two major wine-producing regions (Tejo and Alentejo), characterized by small to medium sized wineries. Vineyards have been expanding in this region of Portugal, where about 50–70% of the vineyards are irrigated, increasing regional water demand. The aim of this study is to propose an integrative approach for wine production, where a simple calculation model has been developed and validated to preview water consumption and wastewater production, as functions of winemaking periods and type of processed grapes. Results revealed a global ratio of 2.2 ± 0.45 and 2.1 ± 0.17 Lwater/Lwine. Concerning dedicated indicators, 60–75% of the wastewater was produced during Period I and the red wine production represented a 50–64% increase in water consumption. This tool will enable winemakers to calculate Global and Dedicated Indicators, based on their own parameters, which provide information on flow volumes and peak flows. In this context, it will be possible to identify improvements for wastewater treatment and management towards water reuse as a promising solution for the wine sector in the framework of the circular economy. Mon, 01 Jan 2018 00:00:00 GMT http://hdl.handle.net/10400.15/2518 2018-01-01T00:00:00Z http://hdl.handle.net/10400.15/2347 Título: Flavescence doree phytoplasma affecting grapevine (Vitis vinifera) newly reported in Portugal Autor: Sousa, E.; Casati, P.; Cardoso, C.; Baltazar, C.; Durante, F.; Quaglino, F.; Bianco, P. Resumo: In 2007, during an official Flavescence dorée (FD) survey, typical FD symptoms, associated with desiccation of inflorescences, withering of clusters, irregular maturation of the wood, leaf rolling, typical vein banding, leaf yellowing on white grapevine variety Loureiro and leaf reddening on red variety Vinhão, were observed in vineyards from Amares region in northern Portugal. In 2002, similar but less severe symptoms occurring in the same region were associated with 16SrI phytoplasmas (‘Candidatus Phytoplasma asteris’), subgroup 16SrI‐B (De Sousa et al., 2003). Cuttings and leaf samples were collected from plants with and without symptoms. Total DNA was extracted (Angelini et al., 2001) and assayed in a nested polymerase chain reaction (PCR) using primers P1/P7 (Deng & Hiruki, 1991) followed by either R16F2n/R16R2 (F2n/R2) (Gundersen & Lee, 1996) or R16F1(V)/R16V1731r (F1/V1) (Martini et al., 1999). Phytoplasma strains from group 16SrV (‘Ca. Phytoplasma ulmi’), elm yellows (EY1) and rubus stunt (RUS), were used as reference controls. Healthy C. roseus and no template DNA were used as negative controls. All plants with symptoms and reference controls showed PCR products (F2n/R2 and F1/V1), absent from samples from symptomless plants. Two representative F2n/R2 amplicons, were cloned, sequenced and deposited in GenBank (FJ611961 and FJ611962). The phytoplasma 16S rRNA sequences were identical and shared 99‐100% identity with those of group 16SrV. FD phytoplasmas from Portugal exhibited the characteristic FD‐D TaqI RFLP pattern. This is the first report of FD‐D in grapevine in northern Portugal. Although the current FD outbreak is limited to Amares region, the high pressure of the Scaphoideus titanus vector populations imposes a threat for FD spread, and a current alert for the Ministry of Agriculture (DGADR). The implementation of strategies for effective control of S.titanus and FD have been suggested and included in the Portuguese legislation (Portaria nº 976/2008, 1 September). Fri, 01 Jan 2010 00:00:00 GMT http://hdl.handle.net/10400.15/2347 2010-01-01T00:00:00Z http://hdl.handle.net/10400.15/2346 Título: Meta-analysis of the effects of foods and derived products containing ellagitannins and anthocyanins on cardiometabolic biomarkers: analysis of factors influencing variability of the individual responses Autor: Garcia-Conessa, M.; Chambers, K.; Combet, E.; Pinto, Paula; Garcia-Aloy, M.; Andrés-Lacueva, C.; Pascual-Teresa, S.; Mena, P.; Ristic, A.; Hollands, W.; Kroon, P.; Rodríguez-Mateos, A.; Istas, G.; Kontogiorgis, C.; Rai, D.; Gibney, E.; Morand, C.; Espin, J.; González-Sarrías, A. Resumo: Understanding interindividual variability in response to dietary polyphenols remains essential to elucidate their effects on cardiometabolic disease development. A meta-analysis of 128 randomized clinical trials was conducted to investigate the effects of berries and red grapes/wine as sources of anthocyanins and of nuts and pomegranate as sources of ellagitannins on a range of cardiometabolic risk biomarkers. The potential influence of various demographic and lifestyle factors on the variability in the response to these products were explored. Both anthocyanin-and ellagitannin-containing products reduced total-cholesterol with nuts and berries yielding more significant effects than pomegranate and grapes. Blood pressure was significantly reduced by the two main sources of anthocyanins, berries and red grapes/wine, whereas waist circumference, LDL-cholesterol, triglycerides, and glucose weremost significantly lowered by the ellagitannin-products, particularly nuts. Additionally, we found an indication of a small increase in HDL-cholesterol most significant with nuts and, in flow-mediated dilation by nuts and berries. Most of these effects were detected in obese/overweight people but we found limited or non-evidence in normoweight individuals or of the influence of sex or smoking status. The effects of other factors, i.e., habitual diet, health status or country where the study was conducted, were inconsistent and require further investigation. Mon, 01 Jan 2018 00:00:00 GMT http://hdl.handle.net/10400.15/2346 2018-01-01T00:00:00Z http://hdl.handle.net/10400.15/2345 Título: Dairy products and inflammation: a review of the clinical evidence Autor: Bordoni, A.; Danesi, F.; Dardevet, D.; Fernandez, A.; Gille, D.; Santos, C.; Pinto, Paula; Re, R.; Rémond, D.; Shahar, D.; Vergères, G. Resumo: Inflammation is a major biological process regulating the interaction between organisms and the environment, including the diet. Because of the increase in chronic inflammatory diseases, and in light of the immune-regulatory properties of breastfeeding, the ability of dairy products to modulate inflammatory processes in humans is an important but unresolved issue. Here, we report a systematic review of 52 clinical trials investigating inflammatory markers in relation to the consumption of dairy products. An inflammatory score (IS) was defined to quantitatively evaluate this interaction. The IS was significantly positive for the entire data set, indicating an anti-inflammatory activity in humans. When the subjects were stratified according to their health status, the IS was strongly indicative of an anti-inflammatory activity in subjects with metabolic disorders and of a pro-inflammatory activity in subjects allergic to bovine milk. Stratifying the data by product categories associated both low-fat and high-fat products, as well as fermented products, with an anti-inflammatory activity. Remarkably, the literature is characterized by a large gap in knowledge on bioavailability of bioactive nutrients. Future research should thus better combine food and nutritional sciences to adequately follow the fate of these nutrients along the gastrointestinal and metabolic axes. Sun, 01 Jan 2017 00:00:00 GMT http://hdl.handle.net/10400.15/2345 2017-01-01T00:00:00Z