61 documents found, page 1 of 7
Food freshness and composition evaluated by Colorimetry, TPA, and spectroscopy ...
Silva, Cláudia Esteves da; Leimann, Fernanda Vitória; Sanches, Yuri Yohan Ribeiro; Rodrigues, Vanessa de Carvalho; Tfayli, Ali; Rutledge, Douglas N.This study aimed to apply Common Components and Specific Weights Analysis (CCSWA or ComDim) to explore the relations between colorimetry (color), Texture Profile Analysis (TPA), and Near-Infrared Spectroscopy (NIR) besides determining which of these techniques is most effective in differentiating the freshness and composition of the studied samples. ComDim-ICA, a recent modification of ComDim based on Independe...
Enhancement of fish protein hydrolysates for salad dressing through high shear ...
Moreira, Thaysa F. M.; Oliveira, Anielle; Rodrigues, Vanessa de Carvalho; Carvalho, Amarilis Santos; Quichaba, Michely B.; Peron, Ana P.Thermal and mechanical treatments may affect the structure of hydrolyzed proteins, thus influencing the obtaining of peptides with improved bioactivity. In this work, tila- pia muscle was treated by thermal sterilization or homogenization with ultra-turrax (UT) and hydrolyzed with alcalase to obtain FPHs with antioxidant properties in salad dressing. To evaluate the bioactive potential of FPHs, the acetylcholin...
Evaluation of berberine nanoparticles as a strategy to modulate acetylcholinest...
Leimann, Fernanda Vitória; Souza, Luma Borges de; Oliveira, Byanca Pereira Moreira de; Rossi, Bruna Franzon; Silva, Patricia Sabino daResearchers have concentrated efforts in the search for natural-based reversible inhibitors for cholinesterase enzymes as they may play a key role in the treatment of degenerative diseases. Diverse plant alkaloids can inhibit the action of acetylcholinesterase and, among them, berberine is a promising bioactive. However, berberine has poor water solubility and low bioavailability, which makes it difficult to us...
Biopreservatives against foodborne bacteria: combined effect of nisin and nanon...
Quichaba, Michely Bião; Moreira, Thaysa Fernandes Moya; Oliveira, Anielle de; Carvalho, Amarilis Santos; Menezes, Jéssica Lima; Gonçalves, Odinei HessNisin, a bacteriocin widely used in the food industry, and curcumin, the yellow pigment extracted from turmeric (Curcuma longa L.) stand out among the numerous natural preservatives that have antimicrobial activity. The conversion of these compounds into nanoparticles could be interesting as an alternative to improve technological aspects (such as the low water solubility of curcumin) and to evaluate how synerg...
In situ extraction/encapsulation of olive leaves antioxidants in zein for impro...
Carvalho, Amarilis Santos; Oliveira, Anielle; Moreira, Thaysa Fernandes Moya; Costa, Luis Gustavo Médice Arabel; Marcatto, Gabrielle DonatoThis study presents a sustainable and cost-effective method for preserving the bioactivity of phenolic compounds in olive leaves (OLE) during their application. The extraction and nanoencapsulation of OLE were performed in a single-step process using a rotor-stator system with zein as the encapsulating agent. The nanoprecipitation step was carried out using an aqueous sodium caseinate solution, resulting in sph...
Use of bio-waste of Ilex paraguariensis A. St. Hil. (Yerba mate) to obtain an e...
Menezes, Barbara de Sena Nunes; Caleja, Cristina; Calhelha, Ricardo C.; Pinela, José; Dias, Maria Inês; Stojković, Dejan; Soković, MarinaIn this work, a comparison between the extracts of dehydrated yerba mate (Ilex paraguariensis) and bio-waste of yerba mate leaves from the Brazilian industry was made. The incorporation of the functional extract as a preservative/functional ingredient in a pastry product (pancakes) was tested. The individual profile of phenolic compounds was determined by HPLC-DAD-ESI/MS, and the bioactive potential was assesse...
Effect of Curcuma longa L. extract and curcumin on porcine pancreatic α-amylase...
Oliveira, Grazielle; Kaspchak, Elaine; Oliveira, Anielle; Leimann, Fernanda Vitória; Philippsen, Gisele Strieder; Seixas, Flávio Augusto VicenteThis work aimed to evaluate alpha-amylase activity and structure in the presence of Curcuma longa L. extracts obtained with deep eutectic solvent (DES) and curcumin. Isothermal titration calorimetry (ITC), fluorescence, circular dichroism (CD), and molecular docking were applied to study the effect of additives on enzyme activity and structure. Results showed that in the presence of turmeric extracts, there was...
Lutein-loaded nanoparticles reverse oxidative stress, apoptosis, and autism spe...
Viana, Cristini Escobar; Bortolotto, Vandreza Cardoso; Araujo, Stifani Machado; Dahleh, Mustafa Munir; Machado, Franciele RomeroAutism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social interaction and repetitive behaviors. In this study, we assessed the effect of lutein-loaded nanoparticles on ASD-like be-haviors induced by prenatal valproic acid (VPA) exposure in female offspring rats and the possible involvement of oxidative stress and apoptosis. Pregnant female Wistar rats received a single ...
Antibacterial efficacy of Enterococcus microencapsulated bacteriocin on Listeri...
Ramalho, Regiane; Souza, Nathália A.A. de; Moreira, Thaysa Fernandes Moya; Oliveira, Anielle; Perini, Hugo Felix; Furlaneto, Márcia CristinaThis study focused on the microencapsulation of enterocin from Enterococcus durans (E. durans MF5) in whey powder (WP) using a spray-drying technique followed by the evaluation of how complexation can preserve the enterocin structure and antimicrobial activity against foodborne pathogens. Crude enterocin samples (1 and 5%) were microencapsulated in 10% WP. The antimicrobial activity of unencapsulated (crude) en...
Fish protein hydrolysates: bioactive properties, encapsulation and new technolo...
Moreira, Thaysa Fernandes Moya; Gonçalves, Odinei Hess; Leimann, Fernanda Vitória; Ribeiro, Ricardo PereiraFish protein hydrolysates (FPHs) can be obtained from substrates such as fish muscle, skin, and wastes and assign value to these fish by-products. Proteolytic enzymes catalyze the hydrolysis of these fish substrates' peptide bonds resulting in smaller peptides that present several bioactive properties. Hydrolysates' bioactive properties are a function of the fish species used as the substrate, the enzyme select...