Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/9205
Título: Estudo para valorização da polpa do fruto da Adansonia digitata L.
Autor: Kivoloka, Flávio Pedro
Orientador: Martins, Margarida Moldão
Correia, Augusto Manuel
Duarte, Daniel
Palavras-chave: Adansonia digitata
baobab fruit
antioxidant activity
phenolic content
extraction yield
Data de Defesa: 2015
Editora: ISA/UL
Citação: Kivoloka, F.P. - Estudo para valorização da polpa do fruto da Adansonia digitata L.. Lisboa: ISA, 2015, 42 p.
Resumo: The present study had as main goal the characterization of Adansonia digitata L .fruit, focusing on three specific aspects: physical and chemical description of the fruit pulp, extraction studies and development of drinks based on baobab pulp. The pulp characterization, showed low values for water activity and humidity, high content in essential minerals and a low pH. The pulp was also characterized regarding the total phenolic compounds, vitamin C and antioxidant activity. The results showed high values of total phenols in aqueous solutions, 512 and 603 mg EAG/100mg at room temperature and at 37ºC respectively, an antioxidant activity of 44,36umolTE/g at room temperature and 49,48umolTE/g to 37ºC, determined by the DPPH method and values of vitamin C of 73mg/100 at 37ºC and 125mg/100g at room temperature. In the extraction studies, the relation between solvent/solute was tested as well the influence of temperature during the extractions (room temperature and 37ºC). In this studies we were able to define the relation 3:1 (solvent/solute) and the temperature of 37ºC as the results with better yields. The last part of this work, was the developing of two drinks based on baobab and banana pulp. With this work we were able to conclude that, baobab pulp presents a good nutritional value and the lyophilization process didn’t changed the proprieties of the analyzed fruit
Descrição: Mestrado em Engenharia Alimentar - Qualidade e Segurança Alimentar - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/9205
Aparece nas colecções:BISA - Dissertações de Mestrado / Master Thesis

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