45 documents found, page 1 of 5
Comparison of different pretreatment processes envisaging the potential use of ...
Marques, Fabiana; Pereira, Francisco; Machado, Luís; Martins, Joana T.; Pereira, Ricardo N.; Costa, Monya; Genisheva, Zlatina; Pereira, HugoA significant fraction of the food produced worldwide is currently lost or wasted throughout the supply chain, squandering natural and economic resources. Food waste valorization will be an important necessity in the coming years. This work investigates the ability of food waste to serve as a viable nutritional substrate for the heterotrophic growth of Chlorella vulgaris. The impact of different pretreatments o...
Extraction of phenolic compounds from grape pomace using ohmic heating: Chemica...
Santos, Pedro Miguel Ferreira; Nobre, Clarisse; Rodrigues, Rui Miguel Martins; Genisheva, Zlatina; Botelho, C. M.; Teixeira, J. A.This study addresses the effectiveness of ohmic heating technology (OH) for the sustainable recovery of phenolic compounds from Grape Pomace (GP) by hydroethanolic extraction. GP extracts biological potential was evaluated in terms of antioxidant activity, cytotoxicity and preventive effect against reactive oxygen species (ROS). To understand if GP extracts can be used as a functional ingredient, simulated gast...
Unveiling the techno-functional and bioactive properties of bee pollen as an ad...
Hassan Laaroussi; Santos, Pedro Miguel Ferreira; Genisheva, Zlatina; Bakour, Meryem; Ousaaid, Driss; Asmae, El Ghouizi; Teixeira, J. A.; Lyoussi, BadiaaBee pollen is an imperative product for human use. Seven bee pollens were harvested from Morocco, and their chemical, biological and techno-functional properties were studied. All samples showed acceptable physicochemical and nutritional quality with a mean energy value of 239 kcal/100g. FTIR spectra confirmed the presence of major constituents like carbohydrates, lipids, proteins and polyphenols. Moreover, pol...
Comparative study of e-cigarette aerosol and cigarette smoke effect on ex vivo ...
Silva-Ribeiro, Tiago; Coelho, Eduardo João Louro; Genisheva, Zlatina; Oliveira, José Maria; Correia-Pinto, Jorge; Sampaio, Paula; Moura, Rute S.Electronic cigarette usage has significantly expanded among young people and pregnant women in the last decade. Although there are already some data regarding the short- and long-term consequences of e-cigarettes on human health, their effect on embryo and lung development still needs to be fully disclosed. In this sense, this study describes, for the first time, the impact of electronic cigarette aerosol on ea...
Protective effect of honey and propolis against gentamicin- induced oxidative s...
Badiaa, Iyoussi; Laaroussi, Hassan; Bakour, Meryem; Ousaaid, Driss; Santos, Pedro Miguel Ferreira; Genisheva, Zlatina; El Ghouizi, AsmaeBee products are a promising source of phenolic compounds with strong antioxidant activity. The present study was designed to explore the protective effect of honey, propolis, and their combination on gentamicin-induced oxidative stress and hepatorenal dysfunction. This study was conducted on male Wistar rats by intraperitoneal injections of gentamicin (120 mg/kg BW/day, i.p.) or normal saline (1 ml/kg BW/day, ...
Rotondas red eggplant: nutritional characterization and extractionof high added...
Santos, Pedro Miguel Ferreira; Duca, Anna; Genisheva, Zlatina; De Biasio, Filomena; Gorgoglione, Domenico; Rocha, Cristina M. R.; Teixeira, J. A.Rotondas Red Eggplant belongs to the family of Solanum aethiopicum species, cultivated in a specific area of Potenza (Basilicata, Italy) and has gained the Protected Designation of Origin certification. Recently, Red Eggplant was associated with different biological properties, related to health benefits, as antioxidant, hypoglycemic, antihypertensive and hypolipidemic, probably due to its chemical composition....
Deep eutectic solvents as a green tool for the extraction of bioactive phenolic...
Rodríguez-Martínez, Beatriz; Santos, Pedro Miguel Ferreira; Alfonso, Irene Méndez; Martínez, Sidonia; Genisheva, Zlatina; Gullón, BeatrizThe following are available online at https://www.mdpi.com/article/10.3390/molecules27196646/s1, Figure S1: Example of a chromatogram of some identified com pounds at 280 nm from the studied avocado peel extracts; Table S1: Pearson’s correlation coefficients for the total phenolic content (TPC), total flavonoid content (TFC) and antioxidant capacity (FRAP and AAT) of different extracts from avocado peel. Signif...
Use of metallic and bimetallic nanoparticles as constituents of active bio-base...
Ballesteros, Lina F.; Lamsaf, Hafsae; Cerqueira, Miguel Ângelo Parente Ribeiro; Genisheva, Zlatina; Pastrana, Lorenzo M.; Carvalho, SandraThe use of bio-based packaging materials containing metallic and bimetallic nanoparticles is relatively modern technology. In this sense, the food packaging industry has been investigating biological and renewable resources that can replace petroleum-based materials to reduce the environmental impact and at the same time, include new functionalities using nanotechnology. Therefore, the main objective of this wo...
Electro-based technologies for the extraction of phenolic compounds
Rodrigues, Rui Miguel Martins; Genisheva, Zlatina; Santos, Pedro Miguel Ferreira; Rocha, Cristina M. R.; Pereira, Ricardo Nuno Correia; Vicente, A. A.During the past decade, technologies based on the application of electric fields emerged in different areas of biotechnology. Processing strategies based on the application of pulsed electric fields (PEF), moderate electric fields (MEF), and high voltage electrical discharges (HVED) in combination with their inherent thermal effectsi.e., Ohmic heating (OH) or pulsed Ohmic heating (POH)have been used to extract ...
Novel active biopolymer materials for the food packaging
Genisheva, Zlatina; Lamsaf, Hafsae; Ballesteros, Lina F.; Cerqueira, Miguel Ângelo Parente Ribeiro; Pastrana, Lorenzo M.; Carvalho, SandraThe presence of residual oxygen inside food packaging can significantly affect the organoleptic properties of food and increase microorganism proliferation, decreasing the shelf-life of the products. In this context, the food packaging industry has been investigating new bio-based environmentally friendly multifunctional materials that act as oxygen scavengers and antimicrobial agents. Therefore, in the present...