Data/hora: 08/06/2024 02:18:01

Provedor de dados: | 70
País: | Brazil
Título: | Microencapsulation of pequi pulp by spray drying: use of modified starches as encapsulating agent
Autores: | Santana,Audirene A.; Oliveira,Rafael A. de; Kurozawa,Louise E.; Park,Kil J.
Data: | 2014-10-01
Ano: | 2014
Palavras-chave: | Caryocar brasiliense; Spray drying; Experimental design; Encapsulation; Morphology.
Resumo: | The aim of this study was to evaluate the microencapsulation of pequi pulp by spray drying. A central composite rotational design was used in order to evaluate the effect of the independent variables: inlet air temperature, surfactant concentration and modified starch concentration. The dependent variables were assumed as yield of the process and the product features microencapsulated. A selection of the best process condition was performed to obtain the best condition of a product with the highest vitamin C and carotenoids content. Powders showed moisture content below 2%. The experimental values of hygroscopicity, yield, water activity, total carotenoids and vitamin C powders ranged from 7.96 to 10.67 g of adsorbed water/100g of solids, 24.34 to 49.80%, 0.13 to 0.30, 145.78 to 292.11 mg of ascorbic acid/g of pequi solids and 15.51 to 123.42 mg of carotenoids/g of pequi solids, respectively. The inlet air temperature 140°C, the surfactant concentration of 2.5% and the modified starch concentration of 22.5% was recommended as the selected condition. By the scanning electron microscopy, it was observed that most of the particles had spherical shape and smooth surface.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500017
Editor: | Associação Brasileira de Engenharia Agrícola
Relação: | 10.1590/S0100-69162014000500017
Formato: | text/html
Fonte: | Engenharia Agrícola  v.34 n.5 2014
Fonte: | info:eu-repo/semantics/openAccess