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Current context of Cannabis sativa cultivation and parameters influencing its d...

Saragoça, Andreia; Silva, Ana; Varanda, Carla; Materatski, Patrick; Ortega, Alfonso; Cordeiro, Ana; Gama, José

Cannabis sativa L. is a versatile plant with significant medicinal, industrial, and recreational applications. Its therapeutic potential is attributed to cannabinoids like THC and CBD, whose production is influenced by environmental factors, such as radiation, temperature, and humidity. Radiation, for instance, is essential for photosynthetic processes, acting as both a primary energy source and a regulator of ...


Valorisation of olive oil by-products into pectic- and glucuronoxylo-oligosacch...

Cordeiro, Ana; Fernandes, Andreia; Ferreira, Andreia S.; Coelho, Elisabete; Coimbra, Manuel A.; Silvério, Sara C.; Cadavez, Vasco; Peres, António M.

Olive pomace (OLP) and stones (OLS) are key by-products of olive oil production, rich in lignocellulose and pectin, making them viable substrates for prebiotic oligosaccharide (OS) production. This study evaluated the chemical composition of OLP and OLS powders (OLPp and OLSp) and their potential for OS production through one-step fermentation using recombinant Bacillus subtilis 3610. Both substrates had compar...

Date: 2025   |   Origin: Biblioteca Digital do IPB

Valorisation of olive oil by-products into pectic- and glucuronoxylo-oligosacch...

Cordeiro, Ana; Fernandes, Andreia; Silvério, Sara Isabel Cruz; Coelho, Elisabete; Coimbra, Manuel A.; António M. Peres; Rodrigues, L. R.

Olive pomace (OLP) and stones (OLS) are key by-products of olive oil production, rich in lignocellulose and pectin, making them viable substrates for prebiotic oligosaccharide (OS) production. This study evaluated the chemical composition of OLP and OLS powders (OLPp and OLSp) and their potential for OS production through one-step fermentation using recombinant Bacillus subtilis 3610. Both substrates had compar...


Different approaches to Olive Pomace valorisation

Cordeiro, Ana; Lamas, Sandra; Rodrigues, Ana; Cadavez, Vasco; Silvério, Sara; Peres, António M.; Rodrigues, Lígia R.; Amorim, Cláudia

Olive pomace (OP) is a substantial by-product, rich in lignocellulosic materials and water, obtained following the extraction of olive oil. It comprises the following components: olive skins, pulp, seeds, and stones. As global olive oil production continues to rise, the management and utilisation of OP have become increasingly important from both an economic and an environmental perspective [1]. In this study, ...

Date: 2024   |   Origin: Biblioteca Digital do IPB

Monitoring biotechnological processes through quantitative image analysis: appl...

Braga, Adelaide Correia; Mesquita, D. P.; Cordeiro, Ana; Belo, Isabel; Ferreira, Eugénio C.; Amaral, A. Luís

Quantitative image analysis (QIA) is a simple and automated tool for process monitoring that, when combined with chemometric techniques, enables the association of changes in microbiota morphology to various operational parameters. To that effect, principal component analysis, multilinear regression, and ordinary least squares methods were applied to the obtained dataset of the biotransformation conditions for ...


Olive oil by-products as potential alternative substrates for xylooligosacchari...

Cordeiro, Ana; Fernandes, Andreia; Peres, António Manuel; Rodrigues, L. R.; Amorim, Cláudia

Olive pomace (OP) and olive stones (OS) are industrial by-products from the olive oil production. These residues have a high percentage of cellulose, hemicellulose, and lignin, which makes them a good source of fermentable sugars and xylan, as well as a potential alternative substrate for xylooligosaccharides (XOS) production. In this work, OP and OS were chemically characterized and used for the first time as ...


Valorization of coffee agro-industry residues for prebiotic production by one-p...

Fernandes, Andreia; Cordeiro, Ana; Rodrigues, L. R.; Amorim, Cláudia Catarina Oliveira

Prebiotics are interesting compounds able to modulate the gut microbiota by inducing the growth or activity of beneficial bacteria in the gastrointestinal tract, while the pathogenic ones are inhibited. Several carbohydrates have been considered prebiotics including xylooligosaccarides (XOS). XOS are the only nutraceuticals that can be produced from lignocellulosic biomass. Indeed, XOS can be produced from agro...


Assessing the prebiotic potential of xylooligosaccharides produced by one-step ...

Cordeiro, Ana; Fernandes, Andreia; Sousa, Joana; Cardoso, Beatriz Alexandra Batista; Alves, Joana; Silvério, Sara Isabel Cruz; Peres, António M.

The prebiotic effect is a fundamental concept in the fields of nutrition and gut health, referring to the beneficial effects of specific non-digestible dietary components on the gut microbiota, including xylooligosaccharides (XOS). These compounds function as food sources for beneficial gut bacteria, fostering their growth and activity. In this work, in vitro studies were performed to evaluate the prebiotic pot...


Assessing the prebiotic potential of xylooligosaccharides produced by one-step ...

Cordeiro, Ana; Fernandes, Andreia; Sousa, Joana; Cardoso, Beatriz; Alves, Joana; Silvério, Sara; Peres, António M.; Rodrigues, Lígia R.; Amorim, Cláudia

A prebiotic is defined as a substrate that is selectively utilized by host microrganisms, conferring a health benefit

Date: 2023   |   Origin: Biblioteca Digital do IPB

Assessment of calcinosis in Portuguese patients with systemic sclerosis: a mult...

Samões, Beatriz; Guimarães da Fonseca, Diogo; Beirão, Tiago; Costa, Flávio; Vieira, Romana; Terroso, Georgina; Ferreira, Raquel Miriam; Nicolau, Rafaela

Introduction/objectives: The study aims to define the clinical and subclinical calcinosis prevalence, the sensitivity of radiographed site and clinical method for its diagnosis, and the phenotype of Portuguese systemic sclerosis (SSc) patients with calcinosis. Method: A cross-sectional multicenter study was conducted with SSc patients fulfilling Leroy/Medsger 2001 or ACR/EULAR 2013 classification criteria, regi...


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