Polytechnic University of Valencia Congress, 21st International Drying Symposium

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Effect of spray drying on volatile compounds of acerola pulp
P. M. Nogueira, M. T. Leite Neta, H. C. S. Araújo, M. S. Jesus, S. Shanmugam, Narendra Narain

Last modified: 02-01-2019

Abstract


The objective of this work was to optimize the drying conditions in order to obtain acerola powder and to focus on the product aroma quality. Acerola fruits were selected, washed and sanitized before extracting the pulp. An emulsion was obtained by adding maltodextrin in the pulp. The dehydrated powders were obtained in spray dryer by drying at inlet temperatures of 128 and 152 ºC. Twenty five volatile compounds were identified in fresh acerola pulp and in the dehydrated powder. These results prove that use of maltodextrin in spray drying of acerola pulp helps in retention of key aroma compounds in acerola powder.

Keywords: Acerola, Spray drying, dehydration, volatiles, aroma, GC-MS.

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