Percorrer por autor "Carvalho, Teresa"
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- Nitrate reducing starter culture and natural nitrate sources as a "clean label" alternative in meat productsPublication . Carvalho, Teresa; Oliveira, Mónica; Komora, Norton; Teixeira, PaulaIntroduction and objectives: Clean label products have been introduced in the market with the goal of ensuring product safety having in sight the protection of the environment and public health. This study aimed to assess a clean label alternative to nitrite addition in cooked ham manufacturing by exploiting natural plant sources of nitrate as the substrate for a nitrate reductase- producing starter culture. Methods: Cooked hams were prepared at a laboratory scale using minced pork leg and water, salt, sodium tripolyphosphate and carrageenan. Results: All the produced hams had a characteristic odor. The main difference observed was the color: A typical reddish-pink color formation was observed in hams with the starter culture combined with fresh spinach (K) or radish (M) cooking water; When combined with beetroot (I) and paprika (J), the starter culture was unable to produce the desirable color; Regarding texture, hams produced with spinach cooking water in combination with the starter culture (K) and the model matrix (A) were only similar for the chewiness parameters analyzed (p=0.242), being both products microbiologically stable during at least 10 days of storage at 4 °C. Conclusion and relevance: Although preliminary, these results highlight the feasibility of combining spinach cooking water and a nitrate reductase-producing starter culture as a promising clean label solution to the addition of chemical nitrite in cooked ham production.
- Noite europeia dos investigadores em Armamar: palco da ciência em ambientes ruraisPublication . Branquinho, Raquel; Duarte, Joaquim; Sarabando, Cândida; Damião, Cláudia; Ambrósio, Susana; Barbosa, Joana Cristina; Barbosa, Joana Bastos; Rezende, Lourenço; Carocho, Márcio; Fernandes, Mariana; Marques, Richard; Friães, Sofia; Santos Carvalho, Ana; Teixeira, Bruno; Ribeiro, Daniela; Grosso, Filipa; Duarte, Inês; Teixeira, José Carlos; Saavedra, Maria José; Alvim, Mariana; Lúcio, Marlene; Oliveira, Mónica; Cardoso Santos, Nuno; Cardoso, Paula; Nunes, Paulo; Cruz, Pedro; Bartolomeu, Raul; Cardoso, Ricardo; Ferreira, Sónia; Carvalho, Teresa; Teixeira, Sofia; Fonseca, Joana; Duarte, Hernâni; Sá-Pinto, Xana; Gomes, Joana; Soares, Luís
- The role of circular economy in the decarbonization of the agrifood sector in PortugalPublication . Resende, Daniela; Ribeiro, Tânia; Coelho, Marta; Oliveira, Nuno; Sousa, Daniel; Fazenda, Paula; Braga, Eduardo; Carvalho, Teresa; Pintado, Manuela
- White spot lesions: diagnosis and treatment - a systematic reviewPublication . Lopes, Pedro C.; Carvalho, Teresa; Gomes, Ana T. P. C.; Veiga, Nelio; Blanco, Letícia; Correia, Maria José; Mello-Moura, Anna Carolina VolpiBACKGROUND: White spot lesions represent the first stage of caries and their prevalence has been increasing in recent years, particularly in patients undergoing orthodontic treatment. DIferential diagnosis and lesion activity are essential to decide on the clinical approaches to treatment. The aim of this study is to understand if the new diagnostic tools such as fluorescence, microradiography and computed microtomography have the potential to change the conventional treatment of white spots". METHODS: A systematic search of available studies in the literature was carried out, using PRISMA guidelines, in Pubmed and Scopus electronic databases and manually to identify relevant articles to answer the PICO question: "Do the new diagnostic tools have the potential to change the conventional treatment of white spots?". This systematic review included randomized controlled trials (RCT), cross-sectional and longitudinal studies complying with the following inclusion criteria: (i) studies in humans, (ii) studies about white spot lesions, (iii) studies published between 2012 and 2023, (iv) studies having both diagnosis and treatment and (v) studies with full text available. In this review we excluded other systematic reviews of clinical trials and in vitro studies. The RoB tool was used to assess the risk of bias. RESULTS: The systematic literature search identified 143 potentially relevant references, which after applying the exclusion criteria, resulted in 20 articles. Regarding diagnostic methods, most articles found were based on conventional methods of visual examination (n:10) or fluorescence (n:7). The least referenced diagnostic techniques were based on the use of clinical photographs (n:2), cross-sectional microradiography (n:1) and computed microtomography (n:1). The use of DIAGNOdent was reported by 3 in vitro studies. With regard to therapies, most studies reported the use of infiltrating resin (n:7) and fluoride-based products (n:5). Other studies have reported the use of self-assembling peptide P11-4 (n:1), home care (n:1), casein phosphopeptide-amorphous calcium phosphate (n:2) and hydrochloric acid (n:1). Combination therapies were also considered. CONCLUSION: Diagnostic tool does not have the potential to change the form of treatment, whether it is a conventional method or a more differentiated one.