SPRAY DRYING OF EDIBLE CACTUS (OPUNTIA MILPA ALTA)
In this paper, spray drying （ SD ） is used to investigate the dehydration of Opuntia Milpa Alta.Inlet air temperature in spray drying is usually a significant factor for final product property.Different inlet air temperatures, i.e., 90 ℃, 140 ℃, 190 ℃, and 240 ℃, are selected in this study.The properties of dried cactus powder, i.e., residual moisture, particle size distribution, SEM, Vitamin C, and color difference, are presented.The results showed that all residual moisture in product by SD was less than 6％.SEM of the dried product showed that the particles were round with some shrinkage hole and some were maintained in strip due to initial mill process.Most mean particle sizes were changed from 8.6 μm to 24.3 μm.The typical size distribution range was from 1 μm to 100 μm.It was seen that the measured Vitamin C in dried products and color difference were decreased with the inlet air temperature increase.Maximum Vitamin C content at 1776 μg/g was obtained when inlet air temperature 90 ℃ was used in spray drying.
edible cactus (Opuntia Milpa Alta) spray drying SEM Vitamin C
Zhang Caihong Huang Lixin Xie Pujun Liu Wei A.S.Mujumdar
Institute of Chemical Industry of Forest Products，CAF，Jiangsu Province，Nanjing 210042，China Institute of Chemical Industry of Forest Products，CAF，Jiangsu Province，Nanjing 210042，China Institut Department of Mechanical Engineering,National University of Singapore,119260,Singapore
国际会议
The 7th Asia-Pacific Drying Conference(第七届亚太地区干燥会议 ADC2011)
天津
英文
1-5
2011-09-18（万方平台首次上网日期，不代表论文的发表时间）