Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/5257
Título: Industrial production of omega-3 polyunsaturated fatty acids from fish oil and microalgae
Autor: Rodrigues, Ana Sofia de Figueiredo
Orientador: Vicente, Maria Suzana Ferreira Dias
Reis, Alberto José Delgado
Palavras-chave: docosahexaenoid acid
eicosapentaenoic acid
Omega-3
polyunsaturated fatty acids
sardine
Crypthecodinium cohnii
Data de Defesa: 2012
Editora: ISA/UTL
Citação: Rodrigues, A.S.F. - Industrial production of omega-3 polyunsaturated fatty acids from fish oil and microalgae. Lisboa: ISA, 2012, 56 p.
Resumo: ω-3 polyunsaturated fatty acids (PUFAs) ingredients, especially eicosapentaenoic acid (EPA, 20:5ω3) and docosahexaenoic acid (DHA, 22:6ω3) are known for its vital and unique role in human health and well-being by an extensive scientific research. These facts are widely spread by media. At present, the major source of ω-3 PUFAs is fish oil from oily fish like sardine (Sardina pilchardus). This work proposes the use of heterotrophic microalgae such as Crypthecodinium cohnii as an alternative source of interest for the commercial production of ω-3 EPA and DHA. It is also suggested the use of a common process suitable for both feedstock. EPA and/or DHA production are accomplished through oil saponification and PUFAs concentration winterization and urea concentration. PUFAs purification by chromatography is only necessary when oil is extracted from fish since fractions obtained from C. cohnii have high proportions in DHA and they do not require further purification steps for food applications. The combination of traditional (seasonal) and alternative sources (year-round) using a common production process shows an economic advange with increasing earnings for market development.
Descrição: Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/5257
Aparece nas colecções:BISA - Dissertações de Mestrado / Master Thesis



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