13 documents found, page 1 of 2
Cascading recovery of added-value cocoa bean shell fractions through autohydrol...
Sánchez, Marta; Ferreira-Santos, Pedro; Dias, Joana Sofia Gomes; Laca, Armanda; Rocha, Cristina M.R.In this work, an autohydrolysis treatment was applied to cocoa bean shells (CBS) to obtain different potentially added-value fractions rich in phenolic compounds with antioxidant potential and oligosaccharides with potential prebiotic properties. The final residue was enzymatically treated to deliver sugars that can undergo fermentation-based biotransformation. This hydrothermal pretreatment was assessed for ma...
Development of cytisus flower extracts with antioxidant and anti-inflammatory p...
Alvaredo-López-Vizcaíno, Adela; Costa-Barbosa, Augusto; Sampaio, Paula; Río, Pablo; Botelho, C. M.; Ferreira-Santos, PedroPlant flowers are recognized as a rich source of bioactive phenolic compounds. In this study, for the first time, the recovery of antioxidant phenolic compounds from Cytisus striatus flowers (CF) was optimized using microwave-assisted extraction (MAE). The variables (% of ethanol, temperature, and time) were studied using a response surface methodology (RSM). Extraction efficiency was assessed by total phenol c...
Gold nanoparticles: a promising next-generation tool for breast cancer photothe...
Ferreira-Gonçalves, Tânia; Costa, Eduardo; Coelho, João; Gaspar, Maria Manuela; Ascensão, Lia; Ferreira-Santos, Pedro; Faísca, Pedro; Figueiredo, IsabelAuNPs show suitable mean sizes and maximum absorbance peaks to be used for PTT when locally administered. AuNPs show no toxicity either in breast cancer cell lines or red blood cells. Laser irradiation proved to be safe when applied alone. Combining EGF-conjugated AuNPs with laser irradiation resulted in a reduction of 33% in MCF-7 cells viability. The animal model was successfully developed (all animals develo...
Microwave-assisted extraction of raspberry pomace phenolic compounds, and their...
Jaouhari, Yassine; Bordiga, Matteo; Travaglia, Fabiano; Coisson, Jean-Daniel; Barbosa, Augusto Alexandre Costa; Sampaio, Paula; Botelho, C. M.Raspberry pomace (RBP) is rich in phenolic compounds. This study aims to optimize the extraction of phenolics from RBP and assess their bioaccessibility and bioactivity. The extraction process revealed that ethanol 50% was the most effective solvent. Microwave-assisted hydroethanolic extraction (MAE) significantly outperformed conventional methods, with optimal conditions of 200°C for 10min yielding the highest...
Influence of different processing techniques on microalgal protein extraction
Moreira, Catarina; Ferreira-Santos, Pedro; Nunes, Rafaela; Carvalho, Bernardo; Pereira, Hugo; Teixeira, José A.; Rocha, Cristina M.R.The nutrient-rich composition of microalgae biomass positions it as a highly promising natural food ingredient. This holds the potential to not only enhance the nutritional value of various food products but also simultaneously alter their structural attributes.This work investigated the effect of five protein extraction techniques such as freeze-thawing, enzymatic-assisted extraction, high-pressure homogenizat...
Advancing 3D-printed seafood analogues with Tetraselmis chui and Tetraselmis ch...
Moreira, Catarina; Molina-Montero, Carmen; Ferreira-Santos, Pedro; Teixeira, J. A.; Rocha, Cristina M.R.; Martínez-Monzó, JavierThe urgent need for sustainable agrifood practices has driven the exploration of alternative protein sources. This study investigates the potential of Tetraselmis chui and its extract as ingredients in 3D-printed seafood analogues. The rheological, textural, and color properties of Tetraselmis chui and Tetraselmis chuis extract were compared with pea protein. The results demonstrated that Tetraselmis chui and T...
Biological properties of Boletus edulis extract on caco-2 cells: antioxidant, a...
Quero, Javier; Paesa, Mónica; Morales, Carmen; Mendoza, Gracia; Osada, Jesús; Teixeira, J. A.; Ferreira-Santos, Pedro; Rodríguez-Yoldi, María JesúsBoletus edulis (BE) is a mushroom well known for its taste, nutritional value, and medicinal properties. The objective of this work was to study the biological effects of BE extracts on human colon carcinoma cells (Caco-2), evaluating parameters related to oxidative stress and inflammation. In this study, a hydroethanolic extract of BE was obtained by ohmic heating green technology. The obtained BE extracts are...
Industrial byproduct pine nut skin factorial design optimization for production...
Silva, Soraia P.; Ferreira-Santos, Pedro; Lopes, Guido R.; Reis, Sofia F.; González, Abigail; Nobre, Clarisse; Freitas, Victor; Coimbra, Manuel A.Pine nut skin (Pinus pinea L.) is a poorly explored industrial byproduct with potential to be utilized as a food ingredient. Subcritical water extraction (SWE), an eco-friendly extraction technique with higher efficiency than hot-water extraction (HWE), was studied to evaluate its suitability in producing extracts rich in soluble fiber and phenolic compounds. For this, a factorial design was developed consideri...
Valorization of plant by-products in the biosynthesis of silver nanoparticles w...
Rocha, Verónica Patrícia Moreira; Ferreira-Santos, Pedro; Aguiar, Cristina; Neves, Isabel C.; Tavares, T.Biosynthesis based on natural compounds has emerged as a sustainable approach for the production of metallic nanoparticles (MNP). The main objective of this study was to biosynthesize stable and multifunctional silver nanoparticles (AgNP) using different plant by-products as reducers and capping agents. Extracts obtained from Eucalyptus globulus, Pinus pinaster, Citrus sinensis, Cedrus atlantica and Camellia si...
Correction: Silva et al. Chemical Profile and Bioactivities of Extracts from Ed...
Silva, Beatriz Nunes; Cadavez, Vasco; Ferreira-Santos, Pedro; Alves, Maria José; Ferreira, Isabel C.F.R.; Barros, Lillian; Teixeira, José AntónioThe authors found a mistake in the original paper [1]. Throughout the article, French lavender was wrongfully named rosemary. Rosemary was not used in the original study. Below are provided the full details of the changes in the Figures, Tables, and text. The authors sincerely apologise for any inconvenience caused and state that the scientific conclusions are unaffected. The original publication has been updated.