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metadata.artigo.dc.title: Spray drying of green corn pulp
metadata.artigo.dc.creator: Marques, Gerson Reginaldo
Borges, Soraia Vilela
Botrel, Diego Alvarenga
Costa, Joyce Maria Gomes da
Silva, Eric Keven
Corrêa, Jefferson Luiz Gomes
metadata.artigo.dc.subject: Drying
Green corn
Physical properties
metadata.artigo.dc.publisher: Taylor & Francis 29-Apr-2014
metadata.artigo.dc.identifier.citation: MARQUES, G. R. et al. Spray drying of green corn pulp. Drying Technology, London, v. 32, n. 7, p. 861-868, Apr. 2014.
metadata.artigo.dc.description.abstract: Maize (Zea mays) is a cereal grown in Brazil, and its availability is limited to the harvest season. An alternative processing route is based on the production of green corn powder, which has a longer shelf-life and increased versatility. This study aimed to evaluate the influence of drying conditions on the physical characteristics, size, and morphology of green corn powder. Drying experiments were performed on a spray dryer according to a central composite rotational design to evaluate inlet air temperature, feed flow rate, and pulp concentration. The yield of dried pulp corn had an average value of 36.19%. The following mean values for the physical properties of the powder were measured: solubility of 94.37 g/100 g, wettability of 128.05 seconds, moisture content of 1.97%, water activity of 0.13, density of 0.79 g/mL, and a particle diameter of 31.02 µm. The powder was also yellow with less intensity, and the particle surface was smooth at higher temperatures and had a tendency to form agglomerates. The estimated optimal conditions for spray drying were 48% (w/w) pulp concentration, 172°C inlet air temperature, and feed flow rate of 0.56 L/h.
metadata.artigo.dc.language: en
Appears in Collections:DCA - Artigos publicados em periódicos

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