16 documents found, page 1 of 2
Bioactive compounds and scavenging capacity of Adansonia digitata L. (Baobab fr...
Ferreira da Vinha, Ana; Costa, Anabela S.G.; Pimentel, Filipa B.; Santo, Liliana Espírito; Silva, Carla Sousa e; Freitas, Marisa; Fernandes, EduardaBackground: Baobab fruit is valued for its nutritional and medicinal benefits. Although it is acknowledged that baobab pulp is beneficial for health, studies that link its nutraceutical properties to the ability to eliminate reactive species (ROS and RNS) are scarce. Methods: The nutritional profile and the antioxidant properties of baobab pulp extracts from Angola were evaluated. Thus, for the first time, the ...
Almond cold-pressed oil by-product as ingredient for cookies with potential hea...
Barreira, João C.M.; Nunes, M. Antónia; Silva, Beatriz Vieira da; Pimentel, Filipa B.; Costa, Anabela S.G.; Alvarez-Ortí, M.; Pardo, J.E.tNowadays, food security is a global concern and a great scientific challenge. Agro-industrial by-productscan be used as potential ingredients of innovative food products, contributing to solve this societaldemand. By-products of high specialty oils processing, for instance, have remarkable nutritional andorganoleptic properties. Accordingly, the partially delipidified almond flour (PDAF) remaining fromalmond o...
The phytochemical and bioactivity profiles of wild Calluna vulgaris L. flowers
Rodrigues, Francisca; Moreira, Teresa; Pinto, Diana; Pimentel, Filipa B.; Costa, Anabela S.G.; Nunes, M. Antónia; Gonçalves Albuquerque, TâniaThe nutritional composition of Calluna vulgaris flowers as well as the phytochemical profile, antioxidant (DPPH and FRAP assays), antimicrobial and cytotoxic (in human immortalized non-tumorigenic keratinocyte and fibroblasts) activities of aqueous, hydroalcoholic and ethanolic extracts were evaluated. A high content of fiber and carbohydrates (75%) and the prevalence of α-tocopherol as vitamer deserves attenti...
Evaluation of the cytotoxicity (HepG2) and chemical composition of polar extrac...
Bessada, Sílvia M.F.; Barreira, João C.M.; Santos, J.V. Araújo; Costa, Carla Sofia; Pimentel, Filipa B.; Bessa, Maria JoãoColeostephus myconis (L.) Rchb.f. (Asteraceae) is a highly disseminated plant species with ruderal and persistent growth. Owing to its advantageous agronomic properties, C. myconis might have industrial applications. However, this species needs to be comprehensively characterized before any potential use. In a previous study, the phenolic composition and antioxidant activity of different C. myconis tissues were...
Improving bioactive compounds extractability of Amorphophallus paeoniifolius (D...
Costa, Anabela S.G.; Barreira, João C.M.; Ruas, Adilson; Vinha, Ana F.; Pimentel, Filipa B.; Alves, Rita C.; Ferreira, Isabel C.F.R.; Oliveira, BeatrizElephant foot yam (Amorphophallus paeoniifolius (Dennst.) Nicolson) is an underground, unbranched deciduous plant that produces a large tubercle (rhizome) with recognized health effects. In this study, the influence of solvent nature (water, water/etanol (1:1) and absolute ethanol) and processing type (fresh, lyophilized and boiled) on the antioxidant activity and bioactive compounds extractability of elephant ...
Improving bioactive compounds extractability of Amorphophallus paeoniifolius (D...
Costa, Anabela S.G.; Barreira, João C.M.; Ruas, Adilson; Ferreira da Vinha, Ana; Pimentel, Filipa B.; Alves, Rita C.; Ferreira, Isabel C.F.R.Elephant foot yam (Amorphophallus paeoniifolius (Dennst.) Nicolson) is an underground, unbranched deciduous plant that produces a large tubercle (rhizome) with recognized health effects. In this study, the influence of solvent nature (water, water/etanol (1:1) and absolute ethanol) and processing type (fresh, lyophilized and boiled) on the antioxidant activity and bioactive compounds extractability of elephant ...
Improving the extraction of Ara h 6 (a peanut allergen) from a chocolatebased m...
Alves, Rita C.; Pimentel, Filipa B.; Nouws, Henri P.A.; Silva, Túlio H.B.; Oliveira, M. Beatriz P.P.; Delerue-Matos, CristinaThe extraction of Ara h 6 (a peanut allergen) from a complex chocolate-based food matrix was optimized by testing different temperatures, extraction times, and the influence of additives (NaCl and skimmed milk powder) in a total of 36 different conditions. Analyses were carried out using an electrochemical immunosensor. Three conditions were selected since they allowed the extraction of the highest levels of Ar...
Improving bioactive compounds extractability of Amorphophallus paeoniifolius (D...
Costa, Anabela S. G.; Barreira, João C. M.; Ruas, Adilson; Vinha, Ana F.; Pimentel, Filipa B.; Alves, Rita C.; Ferreira, Isabel C. F. R.Elephant foot yam (Amorphophallus paeoniifolius (Dennst.) Nicolson) is an underground, unbranched deciduous plant that produces a large tubercle (rhizome) with recognized health effects. In this study, the influence of solvent nature (water, water/etanol (1:1) and absolute ethanol) and processing type (fresh, lyophilized and boiled) on the antioxidant activity and bioactive compounds extractability of elephant ...
Detection of the peanut allergen Ara h 6 in foodstuffs using a voltammetric bio...
Pimentel, Filipa B.
Detection of the peanut allergen Ara h 6 in foodstuffs using a voltammetric bio...
Alves, Rita C.; Pimentel, Filipa B.; Nouws, Henri P. A.; Correr, Wagner; González-García, María Begoña; Oliveira, M. Beatriz P. P.A voltammetric biosensor for Ara h 6 (a peanut allergen) detection in food samples was developed. Gold nanoparticle-modified screen-printed carbon electrodes were used to develop a sandwich-type immunoassay using two-monoclonal antibodies. The antibody-antigen interaction was detected through the electrochemical detection of enzymatically deposited silver. The immunosensor presented a linear range between 1 and...