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Exploring the Biochemical Profile of Beta vulgaris L.: A Comparative Study of B...
Almeida, Daiana; Petropoulos, Spyridon A.; Silveira, Tayse F. F. da; Pires, Tânia C.S.P.; Ferreira, Isabel C.F.R.; Fernandes, Ângela; Barros, LillianIn this study, leaves and roots from three beetroot cultivars (cv. Albina Vereduna (white roots), cv. Burpee’s Golden (golden roots), and cv. Pablo F1 (red roots)), as well as Swiss chard leaves (also known as “rhubarb chard”, or Beta vulgaris subsp. cicla var. flavescens) were evaluated in terms of their chemical profile and bioactive properties. Roots were characterized by high carbohydrate content, which als...
Investigating bioactive compounds in apple pomace: Potential to develop high ad...
Pascoalino, Liege; Finimundy, Tiane C.; Pires, Tânia C.S.P.; Pereira, Carla; Barros, Lillian; Ferreira, Isabel C.F.R.; Oliveira, BeatrizThis study investigates bioactive compounds in apple pomace (AP) obtained from Malus domestica varieties Granny Smith and Cripps Pink, emphasizing its potential for developing high-added-value products from industrial surplus. Regarding its chemical characterization, AP stood out for its high concentration of dietary fibers (7.1g/100g fw), polyunsaturated fatty acids (linoleic and oleic acids), α-tocopherol (0....
Green and Innovative Extraction: Phenolic Profiles and Biological Activities of...
Pallarés, Noelia; Berrada, Houda; Ferrer, Emilia; Rached, Wahiba; Pinela, José; Mandim, Filipa; Pires, Tânia C.S.P.; Finimundy, Tiane C.Underutilized plant species such as Asteriscus graveolens (Forssk.) Less., Haloxylon scoparium Pomel, and Ruta chalepensis L. have been historically valued in traditional medicine for their potential health benefits. These species present an untapped source of bioactive compounds with significant applications in the food and pharmaceutical industries, including the development of functional foods and additives....
Natural Food Colorant Obtained from Wild Berberis vulgaris L. by Ultrasound-Ass...
Vega, Erika N.; González-Zamorano, Lorena; Cebadera, Elena; Barros, Lillian; Pires, Tânia C.S.P.; Molina, Adriana K.; Silveira, Tayse F. F. daIn this study, a novel natural food colorant based on anthocyanins was developed from wild barberry (Berberis vulgaris L.) fruits using ultrasound-assisted extraction, which was optimized through RSM. Four extraction variables (ultrasound power, time, S/L ratio, and extraction solvent pH) were evaluated in combination. The response criteria used were the total anthocyanin content (TAC) and color parameters. The...
Green extraction of anthocyanin from red cabbage waste using acid whey as a pro...
Oliveira, Jaine; Benvenutti, Laís; Albuquerque, Bianca R.; Finimundy, Tiane C.; Mandim, Filipa; Pires, Tânia C.S.P.; Pereira, Carla; Corrêa, Rúbia C.G.The use of acid whey as a biological-based solvent may be an innovative and sustainable strategy to add value to agro-industrial by-products. This study assessed acid whey as a solvent for extracting anthocyanins from discarded red cabbage leaves. Methods such as Heating and Stirring Extraction (HSE), Ultrasound-Assisted Extraction (UAE), and Pressurized Liquid Extraction (PLE) were compared using acid whey or ...
Valorisation of pumpkin by-products: Chemical composition and bioactive propert...
Leichtweis, Maria G.; Molina, Adriana K.; Dias, Maria Inês; Calhelha, Ricardo C.; Pires, Tânia C.S.P.; Pavli, Ourania; Oliveira, BeatrizThis study evaluated the fruit by-products (peels, seeds, and fibrous strands) from 11 pumpkin genotypes cultivated in Greece aiming to valorize them as natural sources of bioactive compounds. Five compounds, including ( )-epicatechin and chicoric acid isomers, were identified in peels, while seeds and fibrous strands mainly contained ( )-epicatechin. Organic acids and tocopherols varied significantly among gen...
Extraction of phenolic compounds from Juglans regia L. leaves using aqueous sol...
Cordova, Isabella Weber; Oludemi, Taofiq; Vieira, Vanessa; Pires, Tânia C.S.P.; Pinho, Simão; Barros, Lillian; Ferreira, OlgaThe leaves of Juglans regia L. (walnut tree) are a rich source of bioactive phenolic compounds, particularly flavonoids and phenolic acids, which can be used in cosmetic applications due to their antioxidant properties. Conventionally, these compounds are extracted using volatile organic solvents. This study focuses on a more sustainable approach by designing a heat-assisted extraction process using aqueous sol...
Valorization of natural resources - development of a functional plant-based bev...
Fernandes, Filipa Alexandra; Roriz, Custódio Lobo; Calhelha, Ricardo C.; Rodrigues, Paula; Pires, Tânia C.S.P.; Prieto Lage, Miguel A.Plant-based beverages are gaining attention due to their potential to offer sustainable and health-promoting alternatives to traditional dairy products. This study aimed to develop a dehydrated functional plant-based beverage composed of tigernut tubers (Cyperus esculentus L.), mukua pulp (Adansonia digitata L.), and thermal water. All matrices and the final beverage were fully characterized in terms of physica...
Phytochemical diversity and biological activities of Hypericum japonicum and Hy...
Barciela, Paula; Rodrigues, Daniele B.; Perez-Vazquez, Ana; Silveira, Tayse F.F. da; Pires, Tânia C.S.P.; Mandim, Filipa; Carpena, Maria; Pereira, CarlaThis study characterizes two species of the genus Hypericum to envisage their applicability as effective and versatile functional foods, dietary supplements, and food preservatives. A wide phenolic composition was found in both extracts, highlighting flanovoids for H. japonicum and xanthones for H. sampsonii. Moreover, anthocya- nins were analyzed for the first time in the latter plant. Antioxidant capacity was...
A biorefinery approach for the simultaneous obtention of essential oils, organi...
Gómez-Mejía, Esther; Dias, Maria Inês; Pereira, Carla; Pires, Tânia C.S.P.; Palá-Paúl, Jesús; Rosales-Conrado, Noelia; León-González, María EugeniaThis investigation evaluates the valorization of citrus peels (lemon, tangerine, and orange) to recover both on-polar and polar fractions simultaneously. Citrus essential oils, abundant in limonene (74.4–33.7 %), exhibited great antioxidant activity (IC50 = 2.002 mg/mL) and Campylobacter jejuni halo inhibition (2.9 cm), particularly in tangerine and orange essential oils. The aqueous extracts were rich in quini...