| dc.description.abstract | The purpose of this study was to investigate effects of spray drying conditions on total phenolic contents (TPCs), total carotenoid contents (TCCs), L-ascorbic acid contents (L-AA), antioxidant capacity (AC), titratable acidity (TA) and moisture contents (MC) of mango powder. Two independence variables were studied, inlet temperatures (1300C, 1400C, 1500C, 1600C and 1700C) and feed flow rates (5 RPM, 6 RPM, 7 RPM, 8 RPM and 9 RPM). An increase in inlet temperatures resulted in decreasing TPCs, TCCs, L-AA, AC, TA, MC of spray-dried mango powder. However, regarding to the feed flow rates, there was an opposite tendency occurred to the inlet temperatures. Two mango powder samples produced at 1300C and 9 RPM contained the highest amount of TPCs, TCCs, L-AA and had the highest AC, TA, as compared to the rest of samples in the same treatment. However, these samples also contained the highest moisture, which would negatively affect the shelf life of the samples due to biochemical degradation. As the sample produced at 1600C and 8 RPM contained low moisture but high in total phenolic, total carotenoid, L-ascorbic acid, antioxidant capacity, titratable acidity, it should be suggested as a good condition to produce mango powder from Cat Chu variety.
Keywords: mango powder, spray drying, inlet temperatures, feed flow rates, total phenolic contents, total total phenolic contents, total carotenoid | en_US |
