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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Qualidade da carne de peito de frangos de corte in natura e processada acometidas por peito de madeira /

Oliveira, Rodrigo Fortunato de January 2019 (has links)
Orientador: Hirasilva Borba / Resumo: O objetivo deste estudo foi avaliar a qualidade física, química da carne e a histomorfometria das fibras musculares de peito amadeirado (PM), e submeter estas ao processo de maturação e produção de hambúrgures e linguiça frescal, com o intuito de obter uma aplicação industrial desta carne. O capítulo 1 aborda considerações gerais e revisão de literatura sobre o tema proposto. No capítulo 2 foram avaliadas as caracteristícas físicas, químicas e histológicas da carne de peito de frangos de corte acometidos pela miopatia PM. No capítulo 3 foram avaliados os possíveis efeitos da maturação por até sete dias sobre a qualidade da carne de peito de frangos de corte acometidos pelos diferentes graus de severidade da miopatia PM. No capítulo 4 foram avaliados a qualidade de linguiças tipo frescal fabricadas com carne de peito de frangos acometidos pelos diferentes graus de severidade da miopatia PM armazenadas por 28 dias. E no capítulo 5 foram avaliados a qualidade de hambúrgueres de frangos acometidos pelos diferentes graus de severidade da miopatia PM armazenados por 120 dias. As amostras cruas de frangos acometidos pelo grau severo da miopatia PM possuem qualidade física inferior comparada com a carne de frango normal, o que pode ser prejudicial ao processamento da carne. As carnes de grau severo da miopatia PM possui níveis superiores de docosa-hexaenoico e ácido araquidônico, além de menor teor de gordura que peitos normais. As análises histomorfométricas mostram que a miodegener... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The objective of this study was to evaluate the physical, chemical and meat quality and histomorphometry of the woody breast muscle fibers, and to submit them to the process of maturing and production of hamburgers and fresh sausages, in order to obtain an industrial application of this meat. Chapter 1 discusses general considerations and literature review on the proposed theme. In chapter 2 the physical, chemical and histological characteristics of the breast meat of broilers affected by PM myopathy were evaluated. In Chapter 3, the possible effects of maturation for up to seven days on the quality of breast meat of broilers affected by the different degrees of severity of PM myopathy were evaluated. Chapter 4 evaluated the quality of fresh sausages made with chicken breast meat affected by the different degrees of severity of PM myopathy stored for 28 days. And in Chapter 5, the quality of chicken burgers affected by different degrees of severity of PM myopathy stored for 120 days was evaluated. Raw chicken samples affected by the severe degree of PM myopathy have lower physical quality compared to normal chicken meat, which can be detrimental to meat processing. The severe meats of PM myopathy have higher levels of docosahexaenoic and arachidonic acid, and lower fat content than normal breasts. The histomorphometric analyzes show that the myocardial disease caused by PM myopathy presents muscle fiber hypertrophy as compensatory mechanism in the moderate and severe degrees ... (Complete abstract click electronic access below) / Doutor

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