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Sílvia M. Rocha
University of Aveiro
153Publications
32H-index
2,960Citations
Publications 153
Newest
#1Andreia F. SilvaH-Index: 5
#2Patrícia NevesH-Index: 22
Last.Anabela A. ValenteH-Index: 42
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Abstract Oligomerization of light olefins allows the production of clean, sulphur-free fuels or fuel additives with reduced aromatics content, and useful chemicals. Commercial heterogeneous catalytic oligomerization technologies were developed to meet market demands in flexible fashions, whereby the operating conditions may be adjusted in favor of the desired product specifications and yields. For achieving superior performances, the development of expeditious evaluation and optimization tools i...
#1Diana Matos (University of Aveiro)
#2Carina Sá (University of Aveiro)H-Index: 1
Last.Etelvina Figueira (University of Aveiro)H-Index: 25
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Abstract Rhizobia have a significant agronomic and environmental role and are eminent contributors to soil fertility. However, this group of microorganisms are affected by various environmental stresses, such as Cd contamination. High Cd concentrations change bacterial metabolism. During this metabolic shift, bacteria alter their volatilome (the set of volatile metabolites synthesized by an organism). In the presence of Cd, peak areas of saturated aldehydes and alcohols were previously reported ...
#2Jorge A. SaraivaH-Index: 29
Last.Sónia A.O. SantosH-Index: 16
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Marine resources are considered as a very promising source of bioactive molecules, and macroalgae in particular have gained special attention, due to their structurally diverse composition. Particular interest has been devoted to the brown macroalga Bifurcaria bifurcata, due to their abundance in bioactive linear diterpenes. In this appraisal, a thorough review concerning the methodologies used in the extraction, fractionation, and identification of diterpenes from B. bifurcata is provided and d...
Substantial amounts of vine wastes are produced during vineyard management, and the chemical profiling of high-value lipophilic phytochemicals is becoming crucial in order to find a complementary route towards their integrated valorisation. The prospection of bioactive phytochemicals from unripe grape, vine shoot, vine cane, stalk and leaf dichloromethane extracts was carried out by gas chromatography–mass spectrometry (GC–MS), analysing samples from a mixture of four red Vitis vinifera L. varie...
#1Diana Silva (University of Porto)H-Index: 13
#2Eduardo Arend (University of Porto)H-Index: 1
Last.Joana Carvalho (University of Porto)H-Index: 24
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AbstractAging is associated with oxidative stress that may increase susceptibility to respiratory infections (RIs). We aimed to assess the impact of exercise training on the risk of RIs in older adults and on a targeted metabolomic profile of stress oxidative lipid peroxidation-related metabolites. Methods: In an 8-month clinical trial, 38 participants over 60 years of age were allocated to an exercise group (EG), in which participants underwent 90-min training sessions three times/week(n = 20),...
#1Inês Baptista (University of Aveiro)H-Index: 8
#2Magda Santos (University of Aveiro)H-Index: 5
Last.Sílvia M. Rocha (University of Aveiro)H-Index: 32
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Abstract Staphylococcal food poisoning is a disease that originates significant health and economic losses and is caused by Staphylococcus aureus strains able to produce enterotoxins. The aim of this work is to go further on the study of the volatile exometabolome of S. aureus using an advanced gas chromatographic technique. Enterotoxic and non-enterotoxic strains were assessed. The volatile exometabolome profile comprised 240 volatiles belonging to ten chemical families. This volatiles were mai...
Worldwide, foodborne diseases are a growing public health problem. Among the infectious bacteria, non-typhoidal Salmonella enterica serovars (NTS) are the major cause of hospitalization and death, and the emergence and spread of their antibiotic-resistance is becoming a worldwide health issue. This, coupled with the restrictions of antibiotics use in agriculture and animal production, calls for alternative approaches to solve this problem. Plant-derived aqueous extracts compounds could provide n...
#1Sofia Branco (NOVA: Universidade Nova de Lisboa)H-Index: 1
#2Eduardo P. Mateus (NOVA: Universidade Nova de Lisboa)H-Index: 13
Last.Maria Rosa Paiva (NOVA: Universidade Nova de Lisboa)H-Index: 10
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Gonipterus spp. weevils (Coleoptera, Curculionidae) are pests of Eucalyptus stands in many world regions. Here, we determined the host plant volatiles that might mediate host selection behaviour in G. platensis. Eucalyptus globulus volatile organic compounds were collected by headspace solid-phase microextraction, monolithic material sorption extraction and simultaneous distillation–extraction. Gas chromatography–mass spectrometry/electroantennographic detection (GC–MS/EAD) was used to determine...
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