The 14th International Chemical and Biological Engineering Conference (CHEMPOR 2023), organized by Bragança Polytechnic University and the Portuguese Engineers Association, was held in Bragança, Portugal, on September 12–15, 2023. CHEMPOR 2023 focused on recent developments in various settings, including biorefinery, biotechnology, energy and environment, innovative materials, and the creation and design of nov...
The 14th International Chemical and Biological Engineering Conference (CHEMPOR 2023), organized by Bragança Polytechnic University and the Portuguese Engineers Association, was held in Bragança, Portugal, on September 12–15, 2023. CHEMPOR 2023 focused on recent developments in various settings, including biorefinery, biotechnology, energy and environment, innovative materials, and the creation and design of nov...
The 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...
Olive oil production yields by-products rich in bioactive phenolics with potential uses in several types of industries
The production of olive oil generates various by-products that are rich in phenyl alcohols, secoiridoids, phenolic acids and aldehydes, flavonoids, and other bioactive compounds. Due to their diverse biological activities, these compounds have promising potential as functional additives in the food, pharmaceutical, and cosmetics industries.1 However, data on their solubility in water and common volatile organic...
Background and aims Iron deficiency chlorosis (IDC) is a nutritional disorder impacting plants and is prevalent in calcareous alkaline soils, correspond- ing to 30% of the world’s arable land. IDC compro- mises iron uptake in crops such as soybean (Glycine max). To improve the effect of iron fertilisers, we sought to develop a nanotechnology-based interven- tion using polymeric nanoparticles (NPs) loaded with F...
The increased interest in functional foods has driven research into health-promoting properties. This study evaluated muffins made with 100 % oatmeal (OM) or a 50:50 lentil/oatmeal flour mix (LM) using the INFOGEST in vitro model. Analysis included starch composition, glycaemic response, cytotoxicity, and immunomodulatory effects in Caco-2 cells under basal and stimulated conditions. Digestion revealed limited ...
This special issue comprises selected works presented at the 20th edition of the International Symposium on Solubility Phenomena and Related Equilibrium Processes, held online from 4 to 9 September 2022 at the Polytechnic Institute of Bragança, Portugal. This biennial IUPAC symposium gathered 110 delegates from 25 countries to discuss solubility studies and associated physical properties in various thematic ses...
Countercurrent chromatography (CCC) and centrifugal partition chromatography (CPC) are efficient techniques to purify terpenoids from essential oils. These methods require suitable solvent systems for the partition between the two immiscible liquid phases. In this study, using the analytical shake-flask method, we measured the partition coefficients of three model monoterpenoids, namely carvone, eucalyptol and ...
This work explores the impact of solute conformers on the conductor-like screening model for real solvents (COSMO-RS) solubility predictions of vanillin and ethyl vanillin in water, short alcohols, and their mixed solvents. Two major conformers of these solutes and changes with solvent polarity were experimentally established by Raman spectroscopy and further confirmed by density functional theory calculations....