Título:	Microstructure and flow properties of lyophilized mango pulp with maltodextrin.
Autoria:	AFONSO, M. R. A. RODRIGUES, B. K. M. COSTA, J. M. C. da RYBKA, A. C. P. WURLITZER, N. J.
Afiliação:	Marcos R. A. Afonso, Universidade Federal do Ceará (UFC); Brena K. M. Rodrigues, Universidade Federal do Ceará (UFC); José M. C. da Costa, Universidade Federal do Ceará (UFC); ANA CECILIA POLONI RYBKA, CPATSA; NEDIO JAIR WURLITZER, CNPAT.
Ano de publicação:	2019
Referência:	Revista Brasileira de Engenharia Agrícola e Ambiental, v. 23, n. 2, p. 133-137, 2019.
Conteúdo:	The present study had as objective to determine the flow properties and behavior of lyophilized mango pulp powder as a function of different concentrations of maltodextrin. In the samples of the powders contain 5, 10 and 15% of maltodextrin the angle of effective internal friction, wall friction angle, flow index and bulk density were determined. The microstructure was evaluated by scanning electron microscopy. The freeze-dried samples are characterized as having an amorphous structure, and the drying aid used modified the surface of the particles. The flow index was 3.19, 4.28 and 4.53 for samples containing, respectively, 5, 10 and 15% maltodextrin. Increasing the concentration of maltodextrin in the mango pulp decreased the effective angles of internal friction and wall friction. The bulk density of the powders increased with increasing concentration of maltodextrin for the samples containing 5, 10 and 15% of the maltodextrin, being equal to 597.8, 689.8 and 691.3 kg m-3, respectively. Thus, it was concluded that the addition of maltodextrin modified the shape of the particles, decreased segregation, affected the flow properties of the mango powders, facilitating flow and increasing their bulk density.
Thesagro:	Microscopia Polpa Manga Mangifera Indica
NAL Thesaurus:	Microscopy Powders Rheology Fruits
Palavras-chave:	Polpa liofilizada Manga com maltodextrina Pó da polpa Fruta em pó Indice de fluxo
Digital Object Identifier:	10.1590/1807-1929/agriambi.v23n2p133-137
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)