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Provedor de dados:  BABT
País:  Brazil
Título:  Macauba ( Acrocomia aculeata ) pulp oil quality is negatively affected by drying fruits at 60 ºC
Autores:  Favaro,Simone Palma
Tapeti,Crissia Fernanda
Miranda,Cesar Heraclides Behling
Miyahira,Maria Amélia M
Data:  2017-01-01
Ano:  2017
Palavras-chave:  Macauba palm
High oleic
Pulp oil
Vegetable oil oxidation
Vegetable oil acidity
Resumo:  ABSTRACT This study aimed to determine if the quality of macauba pulp oil is affected by drying the whole fruits at 60 ºC. Mature fruits were collected at every five days on the ground under 10 palm trees. A mixed batch of 3 kg of whole fruits, with three replications each, was dried in an oven with air circulation for 0, 12, 24, 36 and 48 h at 60 ºC. After every drying time, dried fruits were pulped using an automated device, followed by oil extraction with hexane. Moisture and oil content were determined in the pulp, and the pulp oil quality was analyzed for fatty acid composition, free fatty acids content, peroxide value, molar absorptivity at 232 and 270 nm, refractive index, and total carotene content. The tested temperature was sufficient to decrease moisture to a range suitable for automated pulping, with the best combination and easier pulping being reached after 24 h of drying. In the first 12 h there was an apparent synthesis of unsaturated fatty acids and carotenes. The tested temperature was insufficient to avoid the enhancement of acidity since the beginning and throughout the drying period, nor the degradation of polyunsaturated fatty acids. Thus, it is concluded that drying of fresh fruits of macauba palm at 60 ºC is not appropriate to obtain an overall good quality pulp oil for industrial purposes.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Instituto de Tecnologia do Paraná - Tecpar
Relação:  10.1590/1678-4324-2017160373
Formato:  text/html
Fonte:  Brazilian Archives of Biology and Technology v.60 2017
Direitos:  info:eu-repo/semantics/openAccess

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