46 documents found, page 1 of 5
Nutritional and health claims compliance of olive oils produced from centenaria...
Bortoluzzi, Leticia; Casal, Susana; Cruz, Rebeca; Peres, António M.; Baptista, Paula; Rodrigues, NunoThis work examined whether centenarian trees could be a source of virgin olive oil (VOO) that accomplishes nutritional and health claims regarding unsaturated fatty acids (UFA), tocopherols and phenolic compounds (tyrosol and hydroxytyrosol derivatives). A total of 159 VOOs from centenarian trees of Côa Valley-Portugal were analysed to assess their compliance with those claims. All VOOs met the criteria for ‘hi...
Characterization of Liquid Dosage Forms of Atenolol and Enalapril Maleate for O...
Mota, Sandra; Torres, Ana; Quintas, Clara; Peres, António M.; Ferreiro, Nuno Manuel; Cruz, Rebeca; Ferreira, Helena; Almeida, Isabel F.; Casal, SusanaThe limited availability of pharmaceutical formulations tailored for cardiovascular diseases in both pediatric and geriatric populations generates the need for compounded dosage forms to guarantee precise dosing and medication adherence. This study aimed to analyze the physicochemical properties and stability of formulations of atenolol and enalapril maleate prepared with a proprietary oral vehicle, SuspendIt®....
Identification of the geographical origin of Spanish beech nuts, Fagus sylvatic...
Lamas, Sandra; Rodrigues, Nuno; Herrero, Baudilio; Casal, Susana; Cruz, Rebeca; Pereira, José Alberto; Peres, António M.In general, dry nuts, such as hazelnuts, almonds. chestnuts and walnuts, composition has been investigated and are well characterized. Nevertheless, other less unknown nuts, such as beech nuts have little information. Beech nuts proceed from the Fagus sylvatica L. tree, which is prevalent in central and southem Europe, and is commonly used for oil extraction. A study carried out by Obranovic et al. found that t...
Identification of the geographical origin of Spanish beech nuts, Fagus sylvatic...
Lamas, Sandra; Rodrigues, Nuno; Herrero, Baudilio; Casal, Susana; Cruz, Rebeca; Pereira, José Alberto; Peres, António M.In general, dry nuts, such as hazelnuts, almonds, chestnuts and walnuts, composition has been investigated and are well characterized. Nevertheless, other less unknown nuts, such as beech nuts have little information. Beech nuts proceed from the Fagus sylvatica L. tree, which is prevalent in central and southern Europe, and is commonly used for oil extraction. A study carried out by Obranovic et al.1 found that...
Influence of interannual climate conditions on the composition of olive oil fro...
Bortuluzzi, Letícia Cabrera Parra; Casal, Susana; Cruz, Rebeca; Peres, António M.; Baptista, Paula; Rodrigues, NunoIn recent years, occurrences of heat waves and drought have become increasingly frequent, highlighting the undeniable impact of climate change. The rise in temperatures and decline in rainfall have had severe repercussions on olive trees’ behavior and olive oil production. This study aims to evaluate the effects of two-year climate variations on olive oils from centenarian olive trees situated in the Côa Valley...
Does water addition during the industrial milling phase affect the chemical-sen...
Marx, Ítala; Casal, Susana; Rodrigues, Nuno; Cruz, Rebeca; Veloso, Ana C.A.; Pereira, J.A.; Peres, António M.At olive oil industrial extraction, water addition is a practice overcoming the formation of thick pastes. The effect of water addition (0 to 6.2%, kgadded water/kgolives), during the industrial milling of cv. Arbequina olives, on the oils’ chemical-sensory quality, was evaluated. Despite the extra virgin olive oil classification, compared with the water incorporation (1.2–6.2%), extraction without water additi...
Impact of frost on the morphology and chemical composition of cv. Santulhana ol...
Rodrigues, Nuno; Casal, Susana; Rodrigues, Ana I.; Cruz, Rebeca; Peres, António M.; Pereira, J.A.Frost events and extreme weather phenomena greatly affect several characteristics of the olive fruit. This study evaluated the impact of frost on the morphology, composition (moisture, fat, fatty acids, tocopherols, and total phenolic contents), and antioxidant activity of olives of cv. Santulhana. A total of 14 trees from the same geographical region (Santulhão, northeast of Portugal) were chosen, including tr...
Inoculation of cv. Arbequina olives with fungi isolated from leaves and its eff...
Marx, Ítala; Baptista, Paula; Casal, Susana; Rodrigues, Nuno; Cruz, Rebeca; Veloso, Ana C.A.; Pereira, J.A.; Peres, António M.Cv. Arbequina fruits were inoculated during one day with suspensions of Aureobasidium pullulans, Epicoccum nigrum or both species ( 104 spores/g olives), isolated from olive leaves, aiming to increase the phenolic content of the olive oils. Oils were extracted from non-inoculated (control) and inoculated olives, being evaluated for their oxidative stability, and phenolic composition. Compared to the control oil...
Impact of fresh olive leaves addition during the extraction of Arbequina virgin...
Marx, Ítala; Casal, Susana; Rodrigues, Nuno; Cruz, Rebeca; Peres, Fátima; Veloso, Ana C.A.; Pereira, J.A.; Peres, António M.Leaves incorporation during the extraction of olive oils can enhance their chemical-sensory quality. Thus, leaves from cvs. Arbequina or Santulhana were added (1%, w/w) during the extraction of Arbequina oils using an Abencor system, being discussed the impacts on the phenolics and volatiles formation enzymatic pathways. Leaves addition contributed to a significant decrease (P-value < 0.05) of the contents of s...
Valorization of Phenolic and Carotenoid Compounds of Sechium edule (Jacq. Swart...
Vieira, Elsa F.; Souza, Suene; Moreira, Manuela M.; Cruz, Rebeca; Silva, Aline Boatto da; Casal, Susana; Delerue-Matos, CristinaChayote leaves are known for culinary and traditional medicine applications. This work intended to recover carotenoids and phenolic compounds from chayote leaves using the ultrasound-assisted extraction (UAE). A Box–Behnken design was employed to investigate the impact of extraction time, temperature, and ultrasonic power on the recovery of total carotenoids, total phenolic compounds, and antioxidant activities...