Study on optimize formula of litchi powder with non-filtered pulp by spray drying

In order to research the formula of litchi fruit powder which had whole litchi flesh, the non-filtered litchi pulp was used as raw material and sprayed. Furthermore, the quality of litchi fruit powder were analyzed. The assistant material was malt dextrin, β-cyclodextrine and acacia. The sample was sprayed under inlet temperature of 220℃ , air-out temperature of 90℃, feed speed of 10 r/min. The formula was considered in the flour yield, color (L), polyphenol content and water ratio for the best formula of litchi powder. The results showed that the quality of litchi fruit powder which was sprayed by 25% malt dextrin, 13：1 β-cyclodextrine (dextrin ：β-cyclodextrine), 0.5% acacia, 73.03% litchi pulp was better than others.