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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

Avaliação dos Defumadores: Vertical Estático e Horizontal Rotativo para o Pacu (Piaractusmesopotamicus) e Armado (Pterodoras granulosus) / Rating Smokers: StaticUprightandFlat Rotary for Pacu (mesopotamicusPiaractus)and Armado (Pterodoras granulosus)

Debona, Francielli Maria Vanin 10 July 2015 (has links)
Made available in DSpace on 2017-07-10T17:44:35Z (GMT). No. of bitstreams: 1 Francielli_Maria_Vanin_Debona.pdf: 2342193 bytes, checksum: 015b440073f1442a07f2251de8804ec8 (MD5) Previous issue date: 2015-07-10 / This study aimed to develop a smoked product to fish-based, with reference to the pacu (Piaractusmesopotamicus) and the armado (granulosus Pterodoras), freshwater fish abundant in southern Brazil. We evaluated two treatments in the smoking process: static upright smoker and the flat rotative smoker. To carry out the smoking process, the fish were subjected to brine salting at a concentration of 15% for about two hours and soon after placed in different smokers. Performance tests were carried out in pacu and armado in natura 71.09%, 47.80% respectively. The pacu showed the best performance after the smoking process in the flat rotating smoker (80%) compared to the static vertical smoker (73%). Already armed presented in 67% yield on the rotary flat smoker and 60% in the static vertical smoker. In addition to these tests, physical-chemical analyzes were carried out moisture, protein, lipid, ash and energy (Cal / g) and pH. The Pacu and smoked armado in static upright smoker obtained moisture content (47.87%, 62.78%), protein (46.51%, 64.54%), lipids (41.21%, 23.55% ), energy (Cal / g) (6695, 5524 Cal / g). However pacu and smoked armed in rotating horizontal smoker did better as the levels of: moisture (55.24%, 63.35%), protein (58.06%, 67.32%), lipids (31.08 % 16,08) and energy (Cal / g) (6011, 4967 Cal / g). The microbiological analyzes performed in the raw material in natura and in the end product, it was for all and faecal coliforms, Salmonella spp, Staphylococcus aureus, mesophilic, molds and yeasts. Both samples were within the standards established by Brazilian law to the period of 19 days after the smoking process and kept refrigerated at 4 ° C. Samples of smoked fish in different treatments were subjected to sensory analysis and the end product, which achieved a significant difference between the two treatment and the two species. The product has obtained the highest marks was the smoked pacu in rotary flat smoker. The results proved the feasibility of smoking on the rotary flat smoker / Este trabalho teve como objetivo elaborar um produto defumado a base de peixe, tomando como referência o pacu (Piaractusmesopotamicus) e o armado (Pterodoras granulosus), peixes de água doce abundantes na região Sul do Brasil. Foram avaliados dois tratamentos no processo de defumação: defumador vertical estático e o defumador horizontal rotativo. Para a realização do processo de defumação, os pescados foram submetidos a salga úmida na concentração de 15% por, aproximadamente, duas horas e logo depois colocadas nos diferentes defumadores. Foram realizados testes de rendimento no pacu e no armado in natura 71,09%; 47,80%; respectivamente. O pacu apresentou melhor rendimento depois do processo de defumação no defumador horizontal rotativo(80%)em comparação com o defumador vertical estático (73%). O armado apresentou rendimento de 67% no defumador horizontal rotativo e 60% no defumador vertical estático. Além destes testes, foram realizadas análises físico-químicas de umidade, proteína, lipídio, cinzas, energia (Cal/g) e pH. O pacu e o armado respectivamente, defumados no defumador vertical estático obtiveram teores de umidade 47,87% e 62,78%, proteína 46,51% e64,54%, lipídios 41,21% e23,55%, energia 6695 e 5524 Cal/g. Entretanto o pacu e o armado processados no defumador horizontal rotativo obtiveram melhores resultados quanto aos teores de: umidade 55,24% e 63,35%, proteína 58,06% e 67,32%, lipídios 31,08% e 16,08, e energia 6011 e 4967 Cal/g. As análises microbiológicas realizadas na matéria-prima in natura e no produto final, foram para coliformes totais e termotolerantes, Salmonela sp, Staphylococcus aureus, mesófilas, bolores e leveduras. As amostras estavam dentro dos padrões estabelecidos pela legislação brasileira até o período de 19 dias após o processo de defumação e mantidos sob refrigeração a 4°C. As amostras dos pescados defumados nos diferentes tratamentos foram submetidas à análise sensorial de aceitação do produto final, a qual obteve uma diferença significativa entre os dois tratamentos e as duas espécies. O produto que obteve os melhores valores foi o pacu defumado no defumador horizontal rotativo. Os resultados obtidos comprovaram a viabilidade da defumação no defumador horizontal rotativo.

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