13 documents found, page 1 of 2
Strategies to increase prebiotic activity and neurotrophic potential through di...
Silva, Soraia P.; Gonzalez, Abigail; Roupar, Dalila; Salvador, Andreia Filipa Ferreira; Bastos, Rita; Mota, Mariana; Luís, Maria H.; Ferreira, Sónia S.Soluble polysaccharides and oligosaccharides are prebiotic compounds that promote the growth of beneficial gut bacteria and contribute to improved health. Industrial juice production results in juices with moderate amounts of soluble dietary fibre because most polysaccharides that constitute the dietary fibre are retained in the pulp. Incorporation of glucanases and pectinases into the juice production process ...
Structural characterization and in vitro gut microbiota fermentation of a polys...
Silva, Francisca Crislândia Oliveira; Araújo, Maria Isabela Ferreira de; Silva, Soraia P.; Coelho, Elisabete; Santos, Aline Teixeira dosThis study aims to structurally characterize a polysaccharide extracted from Cenostigma nordestinum gum (AGCn) and evaluate its prebiotic potential in human gut microbiota. AGCn, obtained by dissolution in water and precipitation in 70 % ethanol, was primarily composed of carbohydrates (93.61 %), with a low protein content (1.70 %) and some phenolic compounds (9.16 % Gallic Acid Equivalents). Its molecular weig...
Industrial byproduct pine nut skin factorial design optimization for production...
Silva, Soraia P.; Ferreira-Santos, Pedro; Lopes, Guido R.; Reis, Sofia F.; González, Abigail; Nobre, Clarisse; Freitas, Victor; Coimbra, Manuel A.Pine nut skin (Pinus pinea L.) is a poorly explored industrial byproduct with potential to be utilized as a food ingredient. Subcritical water extraction (SWE), an eco-friendly extraction technique with higher efficiency than hot-water extraction (HWE), was studied to evaluate its suitability in producing extracts rich in soluble fiber and phenolic compounds. For this, a factorial design was developed consideri...
Sustainable exopolysaccharide production by rhizobium viscosum CECT908 using co...
Gudiña, Eduardo José; Couto, Márcia R.; Silva, Soraia P.; Coelho, Elisabete; Coimbra, Manuel A.; Teixeira, J. A.; Rodrigues, L. R.Microbial exopolysaccharides (EPS) are promising alternatives to synthetic polymers in a variety of applications. Their high production costs, however, limit their use despite their outstanding properties. The use of low-cost substrates such as agro-industrial wastes in their production, can help to boost their market competitiveness. In this work, an alternative low-cost culture medium (CSLM) was developed for...
Evaluation of microbial‐fructo‐oligosaccharides metabolism by human gut microbi...
Roupar, Dalila; Coelho, Marta C.; Gonçalves, Daniela A.; Silva, Soraia P.; Coelho, Elisabete; Silva, Sara; Coimbra, Manuel A.; Pintado, ManuelaThe prebiotic potential of fructo‐oligosaccharides (microbial‐FOS) produced by a newly isolated Aspergillus ibericus, and purified by Saccharomyces cerevisiae YIL162 W, was evaluated. Their chemical structure and functionality were compared to a non‐microbial commercial FOS sample. Prebiotics were fermented in vitro by fecal microbiota of five healthy volunteers. Microbial‐FOS significantly stimulated the growt...
OC33 Chromatographic approaches to study pine nut skin: exploitation of its com...
Silva, Soraia P.; Colunga, Alondra; Roupar, Dalila; Salvador, Andreia Filipa Ferreira; Nobre, Clarisse; Reis, S. F.; Freitas, V.; Coimbra, M. A.Pine nut skin (PNS) is an unexploited and uncharacterized by-product recovered during pine nut processing. The exploitation of by-products as sources of valuable compounds agrees with the current demand for the reduction of waste, and a transition to more sustainable production and consumption1. Therefore, PNS characterization and bioactive potentialities were assessed. The utilization of several chromatographi...
Evaluation of microbial-fructo-oligosaccharides metabolism by human gut microbi...
Roupar, Dalila; Coelho, Marta C.; Gonçalves, Daniela Alexandra; Silva, Soraia P.; Coelho, Elisabete; Silva, Sara; Coimbra, Manuel A.; Pintado, ManuelaThe prebiotic potential of fructo-oligosaccharides (microbial-FOS) produced by a newly isolated Aspergillus ibericus, and purified by Saccharomyces cerevisiae YIL162 W, was evaluated. Their chemical structure and functionality were compared to a non-microbial commercial FOS sample. Prebiotics were fermented in vitro by fecal microbiota of five healthy volunteers. Microbial-FOS significantly stimulated the growt...
Hydrolysates containing xylooligosaccharides produced by different strategies: ...
Gautério, Gabrielle Victoria; Amorim, Cláudia Catarina Oliveira; Silvério, Sara Isabel Cruz; Cardoso, Beatriz B.; Ballesteros, Lina F.; Alves, Joana I.This study explores the structural characterization, antioxidant and prebiotic activities of hydrolysates containing xylooligosaccharides (XOS) produced by different strategies: direct fermentation of beechwood xylan (FermBX) and enzymatic treatment of beechwood (EnzBX) and rice husk (EnzRH) xylans. EnzBX and EnzRH showed XOS with a backbone of (1 4)-linked-xylopyranosyl residues and branches of arabinose, gala...
Human gut microbiota fermentation of microbial-fructooligosaccharides
Roupar, Dalila; Coelho, M.; Gonçalves, Daniela Alexandra Martins; Silva, Soraia P.; Coelho, Elisabete; Silva, Sara; Coimbra, Manuel A.; Pintado, ManuelaIntroduction: Prebiotics have been shown to significantly impact gut microbiota composition, viability and metabolic activity. The prebiotic potential of microbial-fructo-oligosaccharides (microbial-FOS) produced by a newly isolated strain of Aspergillus ibericus in co-culture with a Saccharomyces cerevisiae YIL162W was herein evaluated. Methods: Microbial-FOS were in vitro fermented by human faeces of five hea...
Aspectos químicos y nutricionales del filete de Aloe vera
Pinela, José; Añibarro-Ortega, Mikel; Barros, Lillian; Silva, Soraia P.; Coelho, Elisabete; Coimbra, Manuel A.; Ferreira, Isabel C.F.R.El Aloe vera (Aloe barbadensis Mill.) es una planta suculenta de la familia Asphodelaceae actualmente naturalizada en muchos países tropicales y subtropicales. En la medicina tradicional, se ha utilizado ampliamente durante siglos para tratar trastornos de la piel y otras enfermedades, así como por su efecto purgante [1]. Hoy en día, esta especie se usa como ingrediente para alimentos funcionales, cosméticos y ...