Cristina Caleja

Dr. Cristina Caleja

Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 November 2016 in Food Chemistry
Verified
Journal Article
Open access
Cristina CalejaCristina Caleja
Cristina Caleja
Lillian BarrosLillian Barros
Lillian Barros
AAAA AA
AA AA
Marcio CarochoMarcio Carocho
Marcio Carocho
Beatriz OliveiraBeatriz Oliveira
Beatriz Oliveira
Isabel FerreiraIsabel Ferreira
Isabel Ferreira
Consumers demand more and more so-called "natural" products and, therefore, the aim of this work was to compare the effects of natural versus synthetic antioxidant preservatives in yogurts. Matricaria recutita L. (chamomile) and Foeniculum vulgare Mill. (fennel) decoctions were tested as natural additives, while potassium sorbate (E202) was used as a synthetic additive. The fortification of yogurts with natural and synthetic antioxidants did not cause significant changes in the yoghurt pH and nutritional value, in comparison with control samples (yogurt without any additive). However, the fortified yogurts showed higher antioxidant activity, mainly the yogurts with natural additives (and among these, the ones with chamomile decoction). Overall, it can be concluded that plant decoctions can be used to develop novel yogurts, by replacing synthetic preservatives and improving the antioxidant properties of the final product, without changing the nutritional profile.

21 May 2020 in Current Pharmaceutical Design
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Journal Article
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Tânia C.S.P. PiresTânia C.S.P. Pires
Tânia C.S.P. Pires
Cristina CalejaCristina Caleja
Cristina Caleja
Celestino Santos-BuelgaCelestino Santos-Buelga
Celestino Santos-Buelga
Lillian BarrosLillian Barros
Lillian Barros
Isabel FerreiraIsabel Ferreira
Isabel Ferreira
: Consumers’ demand for healthier foods with functional properties has had a clear influence on the food industry and in this sense, they have been attaching natural sources of bioactive ingredients into food products. Vaccinium myrtillus L. (bilberry) is known to be a functional food, presenting its fruits in the form of a small dark blueberry. This coloration is due to its high content in anthocyanin, being also associated with bilberries’ beneficial health effects. In the bilberry industry, there is a very high annual loss of this fruit due to the less aesthetic shape or appearance, in which they cannot be considered suitable for sale and are therefore disposed of as biological waste. Therefore, it is of great importance to valorize this fruit and this review aimed to completely characterize the fruits of V. myrtillus in order to comprehend the relationship between their consumption and the beneficial effects regarding consumer’s health. Thus, this review provides a description of the nutritional and bioactive compounds present in bilberry fruits, followed by their beneficial health effects. An overview of the natural pigments present in these fruits was also explored, focusing particularly in the anthocyanins composition, which represents the most widely studied class of bioactive compounds of V. myrtillus fruits. Finally, industrial applications of these fruits and by-products, as an efficient approach to the production of value-added products with economical and environmental impact, were also discussed. : In general, V. myrtillus is a rich source of micronutrients and phytochemical compounds, such as organic acids, sugars, vitamins, fibers and phenolic compounds (anthocyanin and non-anthocyanin compounds), with nutritional and functional properties, that justify the growing interest in these berries, not only for food applications, but also in the pharmaceutical industry.

1 June 2015 in Journal of Functional Foods
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Journal Article
Open access
Cristina CalejaCristina Caleja
Cristina Caleja
Lillian BarrosLillian Barros
Lillian Barros
AAAA AA
AA AA
Ana ĆirićAna Ćirić
Ana Ćirić
João C.M. BarreiraJoão C.M. Barreira
João C.M. Barreira
Isabel FerreiraIsabel Ferreira
Isabel Ferreira

15 July 2024 in Agriculture
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BMBruna Moreira
Bruna Moreira
AGAlexandre Gonçalves
Alexandre Gonçalves
LPLuís Pinto
Luís Pinto
Miguel Angel Prieto LageMiguel Angel Prieto Lage
Miguel Angel Prieto Lage
Marcio CarochoMarcio Carocho
Marcio Carocho
Lillian BarrosLillian Barros
Lillian Barros
Global population growth and intensive agriculture have both contributed negatively to the environment. As a result, there is increasing interest in the use of sustainable alternatives is increasing to promote better use of natural resources and create an equilibrium between agriculture and the environment. Intercropping, the simultaneous cultivation of multiple crops, aims to optimize land use economically while enhancing biodiversity through plant–microorganism interactions, thereby boosting crop productivity. This practice has particularly benefited nut production by combining the nutrient-sequestering capacity of trees with continuous annual crop production, improving soil nutrient and water utilization. Intercropping systems not only enhance nut yield and quality but also offer economic advantages to farmers. This review synthesized the existing literature with the aim of highlighting not only the positive aspects that intercropping brings to the production of nuts, but also the challenges and limitations faced in different regions when it comes to agricultural production.

12 April 2016 in Food & Function
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Andreia RibeiroAndreia Ribeiro
Andreia Ribeiro
Cristina CalejaCristina Caleja
Cristina Caleja
Lillian BarrosLillian Barros
Lillian Barros
Celestino Santos-BuelgaCelestino Santos-Buelga
Celestino Santos-Buelga
Maria Filomena BarreiroMaria Filomena Barreiro
Maria Filomena Barreiro
Isabel FerreiraIsabel Ferreira
Isabel Ferreira
The bioactivity of the cottage cheese was better preserved with microencapsulated rosemary extracts.