ÂL

Ângela Liberal

Polytechnic Institute of Bragança

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Lillian Barros

Polytechnic Institute of Bragança

Isabel C.F.R. Ferreira

Polytechnic Institute of Bragança

ÂF

Ângela Fernandes

Polytechnic Institute of Bragança

María Inês Días

Polytechnic Institute of Bragança

Carla Pereira

Polytechnic Institute of Bragança

José Pinela

Polytechnic Institute of Bragança

Marina Sokóvić

University of Belgrade

Ana María Vivar Quintana

Universidad de Salamanca

Maria José Alves

Polytechnic Institute of Bragança

Ricardo C. Calhelha

Polytechnic Institute of Bragança

Cooperative Institutions

Polytechnic Institute of Bragança

University of Lisbon

Universidade do Porto

Chartered Institute of Management Accountants

Rede de Química e Tecnologia

Universidad de Salamanca

University of Minho

Universidade Estadual de Campinas (UNICAMP)

Universidade Nova de Lisboa

Instituto Politécnico Nacional

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Phytochemical and Antioxidant Profile of Pardina Lentil Cultivars from Different Regions of Spain

Foods (2021)

Ângela Liberal Ângela Fernandes María Inês Días José Pinela Ana María Vivar Quintana

Lentils (Lens culinaris spp.) are an important food consumed worldwide given their high protein, fiber, mineral, and phytochemical contents, and can be used as a potential source of good nutrition for many people. With the purpose of valuing the Pardina variety, the quality brand from a protected geographical indication “Lenteja de Tierra de Campos”, a full assessment of the nutritional, chemical, and antioxidant properties of 34 samples from this variety was carried out. Besides its actual rich nutritional profile, three phenolic compounds by high performance liquid chromatography equipped with photodiode array detection-mass (HPLC-DAD-ESI/MS) were identified (kaempferol derivatives) with slight differences between them in all extracts. Sucrose by high-performance liquid chromatography with a refraction index detector (HPLC-RI) and citric acid by ultra-fast liquid chromatography coupled with a photodiode array detector (UFLC-PDA) were the major identified sugar and organic acid components, respectively, as well as α-tocopherol and γ-tocopherol isoforms (HPLC-fluorescence). Additionally, all the extracts presented excellent antioxidant activity by the oxidative hemolysis inhibition assay (OxHLIA/TBARS). Briefly, Pardina lentils from this quality brand are a good source of nutritional and chemical components and should therefore be included in a balanced diet.

Phytochemical

10.3390/foods10071629

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Citations (12)

Chemical and Bioactive Properties of Red Rice with Potential Pharmaceutical Use

Molecules (2024)

Eugénia C M S Baptista Ângela Liberal Rossana V. C. Cardoso Ângela Fernandes María Inês Días

Red rice has been proposed as a super-food. Accordingly, the nutritional properties (AOAC), as well as its chemical composition, including sugars (HPLC-RI), organic acids (UFLC-PDA), tocopherols (HPLD-FD), and phenolic compounds (LC-DAD-ESI/MSn), together with the main bioactive properties (antioxidant, cytotoxic, antiproliferative, and antibacterial activities), were evaluated to access its nutritional benefits and health improvement potential. The most abundant macronutrients found were carbohydrates (87.2 g/100 g dw), proceeded by proteins (9.1 g/100 g dw), fat (2.6 g/100 g dw), and ash (1.1 g/100 g dw). Sucrose and raffinose were the only detected sugars, with sucrose presenting the maximum concentration (0.74 g/100 g dw). MUFAs and PUFAs were the predominant fatty acids (40.7% and 31%, respectively). Among the two detected tocopherol isoforms, γ-tocopherol (0.67 mg/100 g dw) predominated over α-tocopherol. The phenolic compounds profile, majorly composed of flavan-3-ols, should be associated with the detected bioactivities, which may provide biological benefits to human health beyond the primary nutritional effect. Overall, the bioactive potential of red rice was comprehensively accessed.

Health Benefits

Stachyose

10.3390/molecules29102265

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Citations (1)

Nutritional, chemical, and antioxidant screening of selected varieties of lentils (Lens culinaris spp.) from organic and conventional agriculture

Journal of the Science of Food and Agriculture (2023)

Ângela Liberal Daiana Almeida Ângela Fernandes Carla Pereira Isabel C.F.R. Ferreira

Lentils are an ancient legume established worldwide for direct consumption and with great potential for application in food processing. In addition, it is a sustainable crop owing to its ability to scavenge nitrogen and carbon, and it improves the nutrient status of the soil. A diet rich in lentils has been linked to significant health benefits. However, the composition of lentils can be influenced by both the lentil variety and the growing conditions. The aim of this work was to evaluate the nutritional profiles and antioxidant potential, as well as the impact that the type of cultivation (conventional or organic) and the variety could have on these parameters, in different lentil varieties.

10.1002/jsfa.12896

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Evaluation of the Polyphenolic Composition and Bioactivities of Three Native Cabo Verde Medicinal Plants

Pharmaceuticals (2022)

Anyse Pereira Essoh Ângela Liberal Ângela Fernandes María Inês Días Carla Pereira

The use of medicinal plants in a variety of health conditions remains essential for the discovery of new treatments. The present study aimed to investigate the bioactive properties of three native plants from Cabo Verde Islands, namely Artemisia gorgonum Webb, Sideroxylon marginatum (Decne. ex Webb) Cout., and Tamarix senegalensis DC., contributing to the characterization of less-known medicinal plants and their potential benefits for human health. Known compounds, such as kaempferol, quercetin, caffeyolquinic, and apigenin derivatives, among others, were detected in the plant species under study. Overall, all species demonstrated good antioxidant capacity, especially the ethanolic extracts of A. gorgonum (EC50 = 0.149 mg/mL) in TBARS assay. Moreover, the ethanolic extracts of the studied plants showed cytotoxic properties against tumor cells, and again the A. gorgonum extract proved to be the most effective in inhibiting tumor growth, mainly in the CaCO2 (GI50 = 17.3 μg/mL) and AGS (GI50 = 18.2 μg/mL) cell lines. Only the ethanolic extracts of T. senegalensis and S. marginatum demonstrated anti-inflammatory activity, albeit weak (EC50 = 35 and 43 μg/mL, respectively). The present study contributed to increased knowledge about the bioactive properties of these plants commonly used in traditional medicine, some of which was discussed for the first time, opening new perspectives for their use in a wider range of health conditions, especially in African countries, where access to modern health care is more limited.

EC50

Health Benefits

10.3390/ph15091162

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Nutritional, phytochemical, and bioactive prospects of black chokeberry (Aronia melanocarpa) and saskatoon berry (Amelanchier ovalis) grown in the Republic of Kazakhstan

Applied Food Research (2024)

А. Т. Sagandyk Ângela Liberal Tayse Ferreira Ferreira da Silveira Maria José Alves Isabel C.F.R. Ferreira

Phytochemical

10.1016/j.afres.2024.100564

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Determination of Carbohydrate Composition in Lentils Using Near-Infrared Spectroscopy

Sensors (2024)

Rocío López-Calabozo Ângela Liberal Ângela Fernandes İsabel Revilla Isabel C.F.R. Ferreira

Carbohydrates are the main components of lentils, accounting for more than 60% of their composition. Their content is influenced by genetic factors, with different contents depending on the variety. These compounds have not only been linked to interesting health benefits, but they also have a significant influence on the techno-functional properties of lentil-derived products. In this study, the use of near-infrared spectroscopy (NIRS) to predict the concentration of total carbohydrate, fibre, starch, total sugars, fructose, sucrose and raffinose was investigated. For this purpose, six different cultivars of macrosperm (n = 37) and microsperm (n = 43) lentils have been analysed, the samples were recorded whole and ground and the suitability of both recording methods were compared. Different spectral and mathematical pre-treatments were evaluated before developing the calibration models using the Modified Partial Least Squares regression method, with a cross-validation and an external validation. The predictive models developed show excellent coefficients of determination (RSQ > 0.9) for the total sugars and fructose, sucrose, and raffinose. The recording of ground samples allowed for obtaining better models for the calibration of starch content (R > 0.8), total sugars and sucrose (R > 0.93), and raffinose (R > 0.91). The results obtained confirm that there is sufficient information in the NIRS spectral region for the development of predictive models for the quantification of the carbohydrate content in lentils.

Stachyose

10.3390/s24134232

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Tocopherols as bioactive compounds in different cultivars of Gomphrena globosa L.

Ângela Liberal Carla Pereira Filomena Adega Lillian Barros Isabel C.F.R. Ferreira

Source

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A comparison of the bioactivity and phytochemical profile of three different cultivars of globe amaranth: red, white, and pink

Food & Function (2015)

Ângela Liberal Ricardo C. Calhelha Carla Pereira Filomena Adega Lillian Barros

Phytochemicals and bioactivities of red, white and pink globe amaranth were characterized and could be used in bioactive formulations against inflammatory processes.

Phytochemical

Nutraceutical

Red algae

10.1039/c5fo01342a

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Citations (21)

Chemical Composition and Biological Activity of Commelina erecta: An Edible Wild Plant Consumed in Brazil

Foods (2023)

Lucas Vinicius Cavichi Ângela Liberal María Inês Días Filipa Mandim José Pinela

In recent years, the interest in products of natural origin has boosted the exploitation and use of plants as food and sources of bioactive compounds, especially wild plants widely used in different cultures for several purposes. Commelina erecta is a wild edible plant (WEP) traditionally used as food and medicine, about which few studies exist. Thus, this study aimed at enhancing the knowledge about its nutritional, chemical and bioactive profile, considering different plant parts and development stages, in order to increase its inclusion in the diet of South American communities. The nutritional profile was found to be similar to other WEP frequently consumed in Brazil. Thirteen phenolic compounds (HPLC-DAD-ESI/MS) were tentatively identified, with apigenin, luteolin and quercetin derivatives being the most abundant. Fructose and oxalic acid were the major sugar and organic acid, respectively, in the aerial parts of C. erecta, and four isoforms of tocopherols were also identified. Regarding the plant’s antioxidant activity, the EC50 values varied between 18.4 and 1060 µg/mL in the inhibition of lipid peroxidation assay (TBARS) and between 53 and 115 µg/mL in the oxidative haemolysis inhibition (OxHLIA) assay. The hydroethanolic extract obtained from stems at the flowering stage also presented anti-inflammatory activity. In general, all the extracts evidenced promising antimicrobial activity. Altogether, these results reinforce the traditional use of this plant species as food and medicine to support the diet of needier populations and also promote food sovereignty and sustainability.

TBARS

10.3390/foods12010192

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Citations (0)

Nutritional, chemical and antioxidant evaluation of Armuña lentil (Lens culinaris spp): Influence of season and soil

Food Chemistry (2023)

Ângela Liberal Daiana Almeida Ângela Fernandes Carla Pereira Isabel C.F.R. Ferreira

TBARS

Cambisol

10.1016/j.foodchem.2023.135491

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Citations (9)