STUDY ON PRODUCTION OF SPRAY-DRIED PANDAN POWDER AT LABORATORY SCALE
Abstract
The pandan powder was produced by spray drying from condensed liquid extraction of pandan leaves (supplemented with maltodextrin). In this article, the spray drying method (spray dryer SD-06AG) was used to produce pandan powder from pandan leaves grown in Tay Ninh, Viet Nam. Based on the results of assessing the effect of raw material and solvent selection to extract soluble compound from pandan leaves, survey of technological parameters affecting the spray drying of the pandan powder, a technological process of production of pandan powder with the primary technical parameters includes: the mature pandan leaf group (8th-12th leaves), after pulverized to a size of 2-3 mm, Pandan is extracted using 50% alcohol solvent, the ratio of material to ethanol of 1/8 (g/mL), at a temperature of 50 °C in one hour, then supplemented maltodextrin with rate 10 percent compared with pandan extracts, then dried at an input temperature of 150 °C, the input flow of 485 mL/h; the obtained product has moisture content of 2,84 ± 0,863%, ash content of 1,04 ± 1,025%, high solubility (completely dissolved in water in 57 seconds), reconstituted solution is transparent and without sediment.
Keywords: Pandan powder, pandan leaf, spay drying, extraction.