36 documents found, page 1 of 4
Edible films with protein and bioactive compounds from arthrospira sp.
Martins, Valter F. R.; Poças, Fátima; Pintado, Manuela; Morais, Rui M. S. C.; Morais, Alcina M. M. B.Arthrospira sp. is an alternative source of protein in the food chain, but it may also be considered a source of phenolic compounds with interesting properties, such as antioxidant and antimicrobial properties. In active packaging, these two properties are essential. In the present work, two extracts were produced: one extract rich in protein and another in bioactives. These two extracts were used in the produc...
Impact of fermentation on the antioxidant activity and color of haematococcus p...
Bassani, Joseane C.; Martins, Valter; Barbosa, Joana; Steffens, Juliana; Backes, Geciane T.; Pereira, Hugo; Pintado, Manuela E.; Morais, Alcina M. M. B.Microalgae are emerging as a promising ingredient for the food industry due to their sustainable cultivation and production of a variety of bioactive compounds, including proteins, lipids, carbohydrates, antioxidant compounds, and pigments [1]. Among the many cataloged species of microalgae, two stand out in research due to their powerful applications in the pharmaceutical, nutraceutical, cosmetic, and food and...
Synergistic effect of ultrasound and osmotic pretreatment on the drying kinetic...
Hossain, Mohammad Afzal; Shaha, Limon Chandra; Romen, Tasnim Islam; Sarkar, Animesh; Biswas, Rahul; Ahmed, Shafi; Islam, Md. Atiqual; Muntasir, FahimThis study aimed to investigate the effects of combined ultrasound and osmotic pretreatment conditions on the drying kinetics and antioxidant properties, such as total phenolic content (TPC), total flavonoid content (TFC), vitamin C content, and DPPH radical scavenging activity, of dried Citrus macroptera (Satkara) fruits. The fruit slices were immersed in 10% aqueous solutions of sucrose (S), glucose (G), and ...
Linking bioaccessibility and carotenoids to antioxidant activity in diatoms
Rocha, Helena R.; Coelho, Marta; Coelho, Natacha; Morais, Rui M. S. C.; Pintado, Manuela; Gomes, Ana M.Diatoms are photosynthetic microalgae with a siliceous cell wall and remarkable adaptability, making them a sustainable and renewable resource for high-value bioactive compounds (1,2). Their rapid growth, efficient carbon fixation, and minimal land and freshwater requirements (1,2) position them as attractive candidates for the development of eco-friendly products in the nutraceutical, pharmaceutical, and cosme...
Exploring the development of a clean-label vegan burger enriched with fermented...
Bassani, Joseane C.; Martins, Valter F. R.; Barbosa, Joana; Coelho, Marta; Sousa, Clara; Steffens, Juliana; Backes, Geciane T.; Pereira, HugoHaematococcus pluvialis and Porphyridium cruentum are red microalgae with high biotechnological potential due to their rich composition of bioactive compounds. However, their intense flavor limits their application in food products. This study evaluated the impact of fermentation with Lactiplantibacillus plantarum (30 ?C for 48 h; LAB-to-biomass ratio of 0.1:1; 106 CFU/mL) on the physicochemical and functional ...
Bioactive profile, bioaccessibility and antioxidant activity of diatoms: a comp...
Rocha, Helena R.; Coelho, Marta; Coelho, Natacha; Morais, Rui M. S. C.; Pintado, Manuela E.; Gomes, Ana M.Diatoms are microalgae with significant biotechnological potential due to their richness in bioactive compounds, including carotenoids and phenolics, contributing to their antioxidant properties. This study aims to compare the bioactive profile and antioxidant activity of three diatom species: Chaetoceros calcitrans, Nannofrustulum shiloi, and Cylindrotheca fusiformis cultivated in closed Flat Panel photobiorea...
Biodegradable films with polysaccharides, proteins, and bioactive compounds fro...
Martins, Valter F. R.; Lopes, Ana I.; Machado, Manuela; Costa, Eduardo M.; Ribeiro, Tânia B.; Poças, Fátima; Pintado, Manuela; Morais, Rui M. S. C.Microalgae are a sustainable source of bioactive compounds and nutrients that do not compete with crops for arable land. Lobosphaera sp. was used to produce biodegradable films. Bioactive compounds, polysaccharides, and proteins were extracted from this microalga. The total phenolic content (TPC) and antioxidant activity (ABTS, DPPH, and ORAC) of the bioactive-rich extract were determined, and its composition w...
Biological and physico-chemical properties of lobosphaera sp. Packed in metalli...
Martins, Valter F. R.; Alves, Ana J.; Poças, Fátima; Pintado, Manuela; Morais, Rui M. S. C.; Morais, Alcina M. M. B.This study evaluated the effects of different storage conditions, varying in light exposure, relative humidity (RH), and packaging materials, on the physicochemical stability of Lobosphaera sp. biomass, the retention of bioactive compounds, and the bioactivity of its extracts. Under light and 75% RH, the biomass absorbed moisture over time, reaching 0.779 +/- 0.003 g/g dry weight (DW) after three months. This w...
Sustainable edible coatings enriched with bioactive extracts from exhausted oli...
Martins, Valter F. R.; Pintado, Manuela; Morais, Rui M. S. C.; Morais, Alcina M. M. B.Exhausted olive oil pomace (EOP), Fucus spiralis, and Limnospira sp. extracts-rich in bioactives, polysaccharides, or proteins-were incorporated into alginate-based edible coatings and applied to strawberries to evaluate their effects on postharvest quality parameters, including decay, weight loss, color, antioxidant activity, and microbial growth. Among the tested formulations, the EOP-based coating (0.25% bio...
Unravelling the potential of seven microalgae species: nutritional, antioxidant...
Martins, Valter F. R.; Lopes, Ana I.; Gomes, Diana; Parreira, Celina; Badenes, Sara M.; Costa, Luís; Pintado, Manuela; Morais, Alcina M. M. B.Featured Application: The present study highlights the rich biochemical profiles and bioactivities of seven microalgal species and their respective extracts, emphasizing their broad and versatile range of potential applications. These microalgae serve as promising sources of valuable biomolecules, notably proteins, especially in Limnospira sp., and lipids, with Nannochloropsis sp. being particularly rich in the...