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Microencapsula??o de ?mega-3 empregando emuls?es simples estabilizadas por biopol?meros / Microencapsulation of sacha Inchi oil employing simple emulsions stabilized with biopolymers

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Previous issue date: 2016-01-28 / The omega-3 (?-3) is a class of essential fatty acids, of major importance for the metabolism of various functions of the body, highlight for the prevention of cardiovascular diseases, immunological and anti - inflammatory, colon cancer, promotes developing brain and retina. The fatty acids of the series ?-3 and ?-6 are precursors of polyunsaturated long chain fatty acids as arachidonic (AA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), the latter considered the most important for developing neonatal and together with the AA are the main components of brain fatty acids (Silva et al., 2007). Microencapsulation employing the formation of simple emulsions is a strategy that aims to maintain the stability of omega-3 and permanence of their functional activities upon exposure to the same harsh conditions as oxidative processes. Biopolymers such as proteins and carbohydrates (natural) are components that assist in maintaining the physical and morphological stability of these emulsions employed for microencapsulation. Likewise, to give the product improvements in the rheological, nutritional and functional properties. Thus, this thesis aims to study the formation of micro-emulsions physically and morphologically stable and their behavior rheological properties of heat and oxidative stability of omega-3 in polymeric systems formed with ovalbumin (natural surfactant) and their interactions with natural polysaccharides (pectin and xanthan gum), compared to a standard system with synthetic surfactant (Tween 80) in the microencapsulation of omega-3 of Sacha Inchi (Plukenetia volubilis L.) oil. With this work we aim to also study the behavior of oxidative Sacha Inchi oil and its inclusion as a component in other foods in microencapsulated form. / O ?mega-3 (?-3) ? uma classe de ?cidos graxos essenciais, de reconhecida import?ncia para o metabolismo de diversas funcionalidades do organismo, destacam-se a preven??o de doen?as cardiovasculares, imunol?gicas e anti-inflamat?rias, c?ncer de c?lon, favorece o desenvolvimento cerebral e da retina. Os ?cidos graxos das s?ries ?-3 e ?-6 s?o precursores dos ?cidos graxos poli-insaturados de cadeia longa, como araquid?nico (AA), eicosapentaenoico (EPA) e docosahexaen?ico (DHA), este ?ltimo considerado o mais importante para o desenvolvimento neonatal e junto com o AA s?o os principais componentes dos ?cidos graxos cerebrais. A microencapsula??o empregando a forma??o de emuls?es simples ? uma estrat?gia que objetiva manter a estabilidade do ?mega-3 e a perman?ncia de suas atividades funcionais frente ? exposi??o do mesmo a condi??es adversas como processos oxidativos. Os biopol?meros como prote?nas e carboidratos (naturais) s?o componentes que auxiliam na manuten??o da estabilidade f?sica e morfol?gica destas emuls?es empregadas para microencapsula??o. Da mesma forma, conferem ao produto melhorias nas propriedades reol?gicas, nutricionais e funcionais. Com isso, objetiva-se nesta tese estudar a forma??o de micro-emuls?es f?sica e morfologicamente est?veis e seus comportamentos reol?gicos, propriedades calorim?tricas e estabilidade oxidativa do ?mega-3 nos sistemas polim?ricos formados com Ovalbumina (surfactante natural) e suas intera??es com polissacar?deos naturais (Pectina e Goma Xantana), comparado a um sistema padr?o com surfactante sint?tico (Tween 80) na microencapsula??o do ?mega-3 do ?leo de Sacha Inchi (Plukenetia volubilis L.). Com esse trabalho objetiva-se tamb?m o estudo do comportamento oxidativo do ?leo de Sacha Inchi e sua inser??o como componente em outros alimentos na forma microencapsulada.

Identiferoai:union.ndltd.org:IBICT/oai:localhost:jspui/1791
Date28 January 2016
CreatorsVicente, Juarez
ContributorsRojas, Edwin Elard Garcia, Carvalho, Mario Geraldo de, Calado, Ver?nica Maria Ara?jo, Sabino, S?lvio Jos?, Godoy, Ronoel Luiz de Oliveira, Barbosa, Maria Ivone Martins Jacintho
PublisherUniversidade Federal Rural do Rio de Janeiro, Programa de P?s-Gradua??o em Ci?ncia e Tecnologia de Alimentos, UFRRJ, Brasil, Instituto de Tecnologia
Source SetsIBICT Brazilian ETDs
LanguagePortuguese
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis
Formatapplication/pdf
Sourcereponame:Biblioteca Digital de Teses e Dissertações da UFRRJ, instname:Universidade Federal Rural do Rio de Janeiro, instacron:UFRRJ
Rightsinfo:eu-repo/semantics/openAccess
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