Natália Mezzomo

Federal University of Santa Catarina | UFSC · Departamento de Engenharia Química e Engenharia de Alimentos

Laurel leaves essential oil is widely studied and valued due to its bioactive functions as antimicrobial, antifungal, antioxidant, antiviral, insecticide and food applications. Encapsulation may be an alternative for protection of their active components. Therefore, the objective of this work is to evaluate the influence of process variables of the...

The present work shows that mango peel is an agro-industrial residue with high nutraceutical value, and a suitable separation process was evaluated for the best extraction of its bioactive content. The objective of the present work was to analyse the phenolic profile and in vitro antioxidant activity (AOX) of extracts from mango peel obtained by lo...

Beetroot (Beta vulgaris L.) residues, leaves and stems, normally disposed as animal feed or compost, were investigated for the recovery of valuable compounds by pressurized liquid extraction (PLE) at temperature of 40 °C and pressures of 7.5, 10 and 12.5 MPa, and flow rate of 3 mL min⁻¹. This abundant residue, combined with the lack of related stud...

Beetroot is a well appreciated edible root, widely used for sugar and ethanol production, and source of natural colorant. Its aerial parts, leaves and stems, are frequently discarded as animal feed or manure. Therefore, the recovery of bioactive components from these materials is appealing due to abundance of raw material, its low price and poor va...

Essential oil of laurel leaves presents, as the main component, the bioactive 1,8-cineole. The Supercritical Fluid Extraction of Emulsions (SFEE) is an alternative method for the encapsulation of natural substances, such as laurel essential oil, particularly allied with the ultrasound technique, which has been promising for the formation of emulsio...

Mangaba has high content of vitamin C, carotenoids, phenolic compounds, substances able to scavenge free radicals and a mixture of pentacyclic triterpenes (amyrin, lupeol). The aim of this study was to obtain extracts of mangaba fruit from different methods at low and high pressure methods with distinct solvents. The low pressure methods were Soxhl...

A customised multi-task equipment, combining supercritical carbon dioxide (sc-CO2) and pressurized liquid extraction (PLE) with ethanol, was developed to selectively recover antioxidant compounds from cocoa bean hulls, praising this agro-industrial by-product. Total phenolic content of the extracts was determined by Folin-Ciocalteu method, while th...

The production of nano and microparticles by means of a supercritical process is a highly promising technique that is commonly applied in the pharmaceutical industry. Even though the industrial application of the technique is not a novelty, understanding the associated physics is still a subject under study. Experimental data and mathematical model...

Large quantities of passion fruit seeds are wasted after juice production. Heat and light can cause loss or reduction of seed oil biological activities including antioxidant and antimicrobial. Thus, co-precipitation with polymers by Supercritical AntiSolvent (SAS) process could be used to preserve seed oil compounds. This work aimed to apply SAS pr...

Grape pomace (seed, skin and stem) is a winery byproduct with high levels of biologically active compounds, such as antioxidants and antimicrobials, that could be converted into high added-value products. Since these components are easily degraded by oxygen, light and high temperature exposure, stabilization is important, for instance, by a microen...

Massas alimentícias são pigmentadas, principalmente, com β-caroteno sintético. A adição de pigmentos provindos do aproveitamento de resíduos da indústria alimentícia pode agregar valor ao produto e diminuir problemas com descartes de resíduos. Sendo assim, o objetivo deste estudo foi determinar fatores físico-químicos e avaliar a aceitabilidade da...

Vegetable fibers have been used lately as ingredients in popular meat products in order to increase its nutritional value. The objective of this study was the physical–chemical characterization of six vegetable fibers in order to apply them in chicken burger formulations as animal fat substitutes. The studied fibers showed moisture content below 14...

Carotenoid is a group of pigments naturally present in vegetal raw materials that have biological properties. These pigments have been used mainly in food, pharmaceutical, and cosmetic industries. Currently, the industrial production is executed through chemical synthesis, but natural alternatives of carotenoid production/attainment are in developm...

The micro/nanosizing of drug particles has been identified as a potentially effective and broadly applicable approach. Sodium ibuprofen is a chiral nonsteroidal anti-inflammatory drug. This work aimed to recrystallize particles of sodium ibuprofen, reducing its particle size, using a Supercritical Anti-solvent (SAS) technique performed in a modifie...

El objetivo de este trabajo fue evaluar la aplicación del extracto de cáscara de banana (Musa spp, subgrupo Prata) en la producción de bizcochos tipo cookie a fin de garantizar un producto con potencial antioxidante. Fueron elaborados un bizcocho con formulación patrón (sin adición de extracto) y otros dos adicionados con extracto en las concentrac...

Several micronization processes based on supercritical fluids have been developed. These processes can be classified according to the role of the supercritical fluid in the process: solvent, solute or co-solvent, and anti-solvent. Application of supercritical fluids as alternative to traditional micronization methods and the growing demand of the i...

The objective of this work was to study the technical and the economical viability to concentrate the carotenoid components by means of supercritical fluid extraction (SFE) from pink shrimp processing waste. The raw material was pretreated using heat treatment, milling and drying. The SFE with carbon dioxide (CO2) was evaluated by varying the raw m...

The objective of this work was to estimate the antioxidant potential of the extracts from pink shrimp residue and red grape pomaces (Merlot and Syrah varietals), evaluated according to its antioxidant activity with different analytical methods, associating these properties with the chemical composition of the extract and, as a consequence, with the...

Active principles of a drug can be encapsulated through polymers in order to prevent adverse reac-tions and protect its properties. The aim of this work was the use of the supercritical anti-solvent (SAS) process to co-precipitate shrimp residue extract and polymer. The shrimp residue was pre-treated and macerated with acetone, producing the carote...

Low Order-Value Optimization (LOVO) is a useful tool for nonlinear estimation problems in the presence of observations with different levels of relevance. In this paper LOVO is associated with a Multiple Fitting strategy for the estimation of parameters in supercritical fluid extraction models. Experimental data of supercritical CO2 extraction of p...

Mint (Mentha spicata L.) is a European aromatic plant, with its essential oil used in food, pharmaceutical and cosmetic industries. Supercritical fluid extraction (SFE) is important for natural products, because it is residue free and preserves thermolabile compounds and product characteristics. The aim of this work was to obtain mint essential oil...

The main residue from the shrimp processing is formed by head and carapace and represents from 40 to 50% (w/w) of the integral shrimp. The recovery of the carotenoid fraction from this residue stands for an alternative to increase its aggregated value. Therefore, the objective of this study was to use the pink shrimp waste as raw material to obtain...

Este proyecto tiene como objetivo evaluar sensorial-mente la aplicación de extractos del residuo de procesa-miento de naranja en helados lácteos, así como la viabi-lidad de las tecnologías de extracción. Los extractos fue-ron obtenidos por las técnicas de Soxhlet (SOX) y ultra-sonidos (US) y se utilizaron en la formulación de hela-dos en concentrac...

Este estudo objetivou avaliar o efeito da marinação sobre as características sensoriais e físicas do corte do dianteiro bovino popularmente conhecido como “Sete”. A técnica de marinação por injeção foi utilizada para aplicação da salmoura em três composições diferentes. Após a injeção, as peças de carne foram assadas em forno doméstico e determinad...

Supercritical fluid extraction (SFE) applies near critical carbon dioxide (CO 2) for the extraction of aromatic and bioactive products such as peach (Prunus persica) almond oil, spearmint (Mentha spicata L.) essential oil and marigold (Calendula officinalis L., Asteraceae) oleoresin. Due to the cost intensive nature of SFE, the estimation of proces...

The microalgae biomass production from swine wastewater is a possible solution for the environmental impact generated by wastewater discharge into water sources. The biomass can be added to fish feed, which can be used in the formulation of meat products. This work addresses the adaptation of the microalgae Spirulina platensis (Arthrospira platensi...

Peach kernels are industrial residues from the peach processing, contain oil with important therapeutic properties and attractive nutritional aspects because of the high concentration of oleic and linoleic acids. The extraction method used to obtain natural compounds from raw matter is critical for product quality definition. Thus, the aim of this...

Supercritical fluid extraction of peach (Prunus persica) almond oil: Kinetics, mathematical modeling and scale-up a b s t r a c t Peach almonds contain oil with important therapeutic and nutritional properties due to the presence of unsaturated fatty acids, high content of oleic acid and other substances. In this study, peach almond oil was obtaine...

O objetivo do trabalho foi estudar o efeito combinado de fermento instantâneo, lecitina de soja e extrato de soja, na produção de massa de pão congelada não fermentada, durante o período de sessenta dias de armazenamento da massa. O estudo de formulação foi realizado na padaria experimental do Centro de Pesquisa em Alimentação da Universidade de Pa...

O objetivo do trabalho foi estudar o efeito combinado de fermento instantâneo, lecitina de soja e extrato de soja, na produção de massa de pão congelada não fermentada, durante o período de sessenta dias de armazenamento da massa. O estudo de formulação foi realizado na padaria experimental do Centro de Pesquisa em Alimentação da Universidade de Pa...

O trabalho objetivou avaliar efeitos imediatos e latentes, resultantes da combinação da temperatura do ar na secagem intermitente e da relação de intermitência sobre a estabilidade de grãos de aveia armazenados pelo sistema convencional por doze meses. Aveia, cultivar UPF 18, produzida no Campo Experimental da Palma da UFPel, safra agrícola de 2002...

The recovery of extracts from vegetal sources is an activity of great interest, since there are compounds in plants that have high potential applications in many industry 1 . Supercritical fluid extraction (SFE) is one of the most promising techniques to obtain highly aggregated value products. The analysis of the mass transfer mechanisms allows th...